Salary:                   Up to £60,000 P/A + benefits (plus Overtime, Flexi and Bonus)

Hours:                   37 hours per week

Do you want to join a business, who value inclusivity, a three-time gold investor in people award winner, an advocate of supporting women in engineering and developing their people to be the best they can be?

An exciting opportunity has arisen to join a Security Engineering team, as a Project Security Manager and be responsible for all aspects of Project Security on a specific Programme and help to shape the future of this type of role as a distinct domain within the Security Engineering Department.

Due to growth within the current model, there is now a need to recruit a Project Security Manager to own and manage the activities, act as a centralised point of contact, harmonise practice across  Design Projects and provide coherency and consistency in the domain. Initially there will be a single role deployed onto a specific Product Line; however, the longer-term strategy is to develop a small departmental team formed from a number of these roles working together.

Responsibilities include (More information available).

• Owner of the Project Security Grading Guide(s):
• Project Release Approvals Manager
• Support to export approval paperwork;
• Project Security Equipment Management
• Formally act as the Project Security Representative as defined by Company Process
• Cross-project Responsibilities

Benefits of working here:

• State of the art technology & innovation
• External learning and development encouraged
• Light and airy university type campus
• Friendly environment
  • Restaurant, On site Medical Centre, Parking / Easy Access to train station, Coffee Shops & Onsite Shop, Sports & Social Club and More

Skills Required:

• Able to listen to, evaluate and resolve technical and process driven issues in a manner that upholds the business reputation with the Customer;
• Highly organised and able to distil complicated information or processes into coherent, manageable steps;
• Strong people and engineering skills where a background in Systems Engineering is useful;
• Knowledge of Product or Systems Security is desirable, but not essential

You will need to obtain UK Security Clearance for this role. This will require you to be a full UK Citizen only. Some restrictions may apply.

Cirrus Selection offers the services of an Employment Agency for permanent recruitment and the services of an Employment Business for contract recruitment.

Salary:                   Up to £60,000 P/A + benefits (plus Overtime, Flexi and Bonus)

Hours:                   37 hours per week

Do you want to join a business, who value inclusivity, a three-time gold investor in people award winner, an advocate of supporting women in engineering and developing their people to be the best they can be?

An exciting opportunity has arisen to join a Security Engineering team, as a Project Security Manager and be responsible for all aspects of Project Security on a specific Programme and help to shape the future of this type of role as a distinct domain within the Security Engineering Department.

Due to growth within the current model, there is now a need to recruit a Project Security Manager to own and manage the activities, act as a centralised point of contact, harmonise practice across  Design Projects and provide coherency and consistency in the domain. Initially there will be a single role deployed onto a specific Product Line; however, the longer-term strategy is to develop a small departmental team formed from a number of these roles working together.

Responsibilities include (More information available).

• Owner of the Project Security Grading Guide(s):
• Project Release Approvals Manager
• Support to export approval paperwork;
• Project Security Equipment Management
• Formally act as the Project Security Representative as defined by Company Process
• Cross-project Responsibilities

Benefits of working here:

• State of the art technology & innovation
• External learning and development encouraged
• Light and airy university type campus
• Friendly environment
  • Restaurant, On site Medical Centre, Parking / Easy Access to train station, Coffee Shops & Onsite Shop, Sports & Social Club and More

Skills Required:

• Able to listen to, evaluate and resolve technical and process driven issues in a manner that upholds the business reputation with the Customer;
• Highly organised and able to distil complicated information or processes into coherent, manageable steps;
• Strong people and engineering skills where a background in Systems Engineering is useful;
• Knowledge of Product or Systems Security is desirable, but not essential

You will need to obtain UK Security Clearance for this role. This will require you to be a full UK Citizen only. Some restrictions may apply.

Cirrus Selection offers the services of an Employment Agency for permanent recruitment and the services of an Employment Business for contract recruitment.

Salary:                   Up to £60,000 P/A + benefits (plus Overtime, Flexi and Bonus)

Hours:                   37 hours per week

Do you want to join a business, who value inclusivity, a three-time gold investor in people award winner, an advocate of supporting women in engineering and developing their people to be the best they can be?

An exciting opportunity has arisen to join a Security Engineering team, as a Project Security Manager and be responsible for all aspects of Project Security on a specific Programme and help to shape the future of this type of role as a distinct domain within the Security Engineering Department.

Due to growth within the current model, there is now a need to recruit a Project Security Manager to own and manage the activities, act as a centralised point of contact, harmonise practice across  Design Projects and provide coherency and consistency in the domain. Initially there will be a single role deployed onto a specific Product Line; however, the longer-term strategy is to develop a small departmental team formed from a number of these roles working together.

Responsibilities include (More information available).

• Owner of the Project Security Grading Guide(s):
• Project Release Approvals Manager
• Support to export approval paperwork;
• Project Security Equipment Management
• Formally act as the Project Security Representative as defined by Company Process
• Cross-project Responsibilities

Benefits of working here:

• State of the art technology & innovation
• External learning and development encouraged
• Light and airy university type campus
• Friendly environment
  • Restaurant, On site Medical Centre, Parking / Easy Access to train station, Coffee Shops & Onsite Shop, Sports & Social Club and More

Skills Required:

• Able to listen to, evaluate and resolve technical and process driven issues in a manner that upholds the business reputation with the Customer;
• Highly organised and able to distil complicated information or processes into coherent, manageable steps;
• Strong people and engineering skills where a background in Systems Engineering is useful;
• Knowledge of Product or Systems Security is desirable, but not essential

You will need to obtain UK Security Clearance for this role. This will require you to be a full UK Citizen only. Some restrictions may apply.

Cirrus Selection offers the services of an Employment Agency for permanent recruitment and the services of an Employment Business for contract recruitment.

• Test automation experience
• CI/CD pipeline knowledge (GitLab, JIRA, scripting)
• Solid grounding in logs and data analysis
• Familiarity with Agile/Scrum
• Eligibility for SC clearance (British Citizenship)

Location                               Stevenage or Bristol

Hours                                   37 per week

Want to work on genuinely cutting-edge technology?

We’re looking for talented Algorithms Engineers to join a growing team developing next-generation RF sensing and advanced multi-mode systems. This is a rare opportunity to work on highly sophisticated technology programmes involving Active Electronically Scanned Arrays (AESA), advanced signal processing, AI integration, and complex systems modelling.

If you enjoy solving difficult technical problems, developing real-world algorithms, and working alongside some of the brightest engineering minds in the industry, this role offers serious technical depth and long-term career growth.

What you’ll be doing

• Developing and refining advanced algorithms for complex RF systems
• Conducting system studies and performance analysis
• Integrating algorithms into sophisticated seeker and sensor models
• Running investigations and analysing data to support systems design
• Identifying opportunities for innovation, optimisation, and future capability improvements
• Collaborating across multidisciplinary engineering teams
• Contributing to the use of AI and machine learning within advanced technology solutions

What we’re looking for

Essential:

• Strong algorithm development experience
• MATLAB capability
• Experience planning and running technical investigations
• Strong data analysis skills
• Problem-solving mindset with a passion for technology and innovation

Desirable:

• Simulink modelling and coding
• RF systems or digital signal processing knowledge
• Machine Learning / AI experience
• Technical report writing
• Experience developing and testing technical hypotheses

Why join?

• Bonus scheme
• Excellent pension contribution, up to 14%
• Paid overtime opportunities
• Flexible and hybrid working
• Excellent on-site facilities including subsidised meals and free parking

This is an outstanding opportunity to work on advanced technology programmes that are shaping the future of RF and intelligent sensing systems.

Security
Due to the nature of the work, applicants must be British Citizens or Dual UK Nationals with British citizenship and will be required to undergo security clearance checks.

Cirrus Selection — specialist recruiters to the engineering and technology sectors, offers the services of an Employment Agency for permanent recruitment and the services of an Employment Business for contract recruitment.

Pay                                        Between £50-80 p/h, dependent on experience

Start                                       Immediate/short notice availability beneficial

Experienced CFD Engineer looking for your next aerospace contract?

We’re supporting a high-profile aerospace engineering programme and are looking for a skilled Contract CFD Engineer to join a specialist team delivering advanced aerodynamic analysis across current and upcoming projects.

This is a hands-on role suited to someone who can quickly integrate into ongoing programmes, take ownership of technical delivery, and operate confidently in a customer-facing environment.

What you’ll be doing

• Delivering high-quality CFD modelling and aerodynamic analysis
• Working on steady and unsteady external aerodynamic flows
• Supporting civil and/or military aircraft programmes
• Developing and improving CFD methodologies
• Producing technical reports and supporting project documentation
• Collaborating directly with engineers, programme teams, and customers
• Managing multiple technical tasks to demanding timescales

What we’re looking for

• Significant aerospace CFD experience within industry
• Strong aircraft OML design experience
• Advanced ANSYS capability, including SpaceClaim, Discovery and Fluent
• Experience across low-speed, subsonic and transonic flow regimes
• Strong understanding of aerodynamic performance optimisation
• Ability to work independently and solve complex technical problems
• Excellent communication and stakeholder engagement skills

Desirable experience

• CFD data generation for certification activities
• Aircraft performance, stability & control or flight dynamics analysis
• HPC workflows and automation/programming for ANSYS CFD tasks

Candidates are ideally degree qualified in a relevant engineering discipline.

Due to programme requirements, UK citizenship is preferred.

You will need to be a British citizen, and eligible for UK security clearance.

Cirrus Selection — specialist recruiters to the engineering and technology sectors, offers the services of an Employment Agency for permanent recruitment and the services of an Employment Business for contract recruitment.

Term                     Permanent (37 hours per week)

Package              Up to £42,500 p/a | Overtime | Flexi | Bonus | Pension

Looking for a hands-on role where no two days are the same? Join a fast-growing Calibration & Maintenance team supporting cutting-edge engineering operations in Stevenage.

This is a fantastic opportunity for a multi-skilled Electrical Maintenance Operator who thrives in a dynamic, high-tech environment and enjoys solving real-world engineering challenges.

What You’ll Be Doing

You’ll be part of a multi-disciplinary team responsible for maintaining and repairing a wide range of plant and process equipment, including:

• Environmental chambers
• Nitrogen and pressure systems
• Test and measurement equipment
• ESD-protected environments

Expect a varied, technically engaging role where you will:

• Carry out preventative and reactive maintenance
• Diagnose faults and support defect investigations
• Maintain accurate service and maintenance records
• Support operational teams to keep critical systems running

Why This Role Stands Out

This is more than a maintenance role; it’s a chance to work on complex systems in a highly respected engineering environment where your skills genuinely make an impact.

If you’re looking for a role where your engineering expertise directly contributes to national and international defence capability, then this is it.

What We’re Looking For

• Completed an NVQ Level 3 Electrical Engineering apprenticeship (or equivalent, plus additional qualifications such as HNC / HND)
• Strong experience maintaining plant/process equipment
• Confident fault-finding and diagnostic skills
• Ability to manage multiple tasks and priorities
• A proactive, safety-conscious mindset

Nice to have:

• 18th Edition Wiring Regulations
• Experience with vacuum systems, environmental chambers, or pressure systems
• SAP knowledge
• Background in electronics manufacturing

What’s in It for You

Bonus up to £2,500, Pension up to 14% total contribution, Flexible & hybrid working, Up to 15 additional flexi leave days, Paid overtime opportunities, Enhanced parental leave (up to 26 weeks), Healthcare cash plan, Excellent on-site facilities (including subsidised meals & free parking)

Apply now through Cirrus Selection and take your next step into a high-impact manufacturing and test environment. If you’re ready to step into something with real engineering substance and critical to national security, you know what to do.

You will need to be a British citizen, and eligible for UK security clearance.

Cirrus Selection — specialist recruiters to the engineering and technology sectors, offers the services of an Employment Agency for permanent recruitment and the services of an Employment Business for contract recruitment.

Term                     Permanent (37 hours per week)

Package              Up to £50,000 p/a | Overtime | Flexi | Bonus | Pension

Want to work on cutting-edge defence systems and see your work tested in real-world scenarios? This is your chance to join a growing Integration & Systems Validation team supporting a major international programme.

This is a hands-on, high-impact role combining system integration, trials, and validation activities across complex systems. You will be working directly with real equipment, delivering trials and demonstrations across the UK, Poland and the USA.

Expect variety, responsibility and the chance to work closely with customers and stakeholders at every level.

What You’ll Be Doing

• Planning and delivering integration & system validation trials
• Supporting lab, system-of-systems, acceptance and live firing trials
• Investigating faults and driving resolution of complex issues
• Analysing system behaviour across multiple interfaces
• Collaborating with engineering teams, partners and customers
• Ensuring safe, controlled and successful trial delivery

Why This Role Stands Out

If you’re looking for a role where you can get hands-on with advanced systems, travel internationally, and play a key part in delivering mission-critical capability, this is it.

What We’re Looking For

• Strong experience in systems integration, V&V or trials
• Confident communicator across technical and non-technical teams
• Experience working across multi-site, multi-discipline environments
• Knowledge of requirements, configuration & defect management

Desirable:

• Networking / protocols / Wireshark
• DOORS or similar requirements tools
• Fault finding at subsystem level
• Customer-facing experience

What’s in It for You

Bonus up to £2,500, Pension up to 14% total contribution, Flexible & hybrid working, Up to 15 additional flexi leave days, Paid overtime opportunities, Enhanced parental leave (up to 26 weeks), Healthcare cash plan, Excellent on-site facilities (including subsidised meals & free parking)

Apply now through Cirrus Selection and take your next step into a high-impact role working on products and systems that really matter, and play a key part in keeping the UK safe, and critical to national security, you know what to do.

You will need to be a British citizen, and eligible for UK security clearance.

Cirrus Selection — specialist recruiters to the engineering and technology sectors, offers the services of an Employment Agency for permanent recruitment and the services of an Employment Business for contract recruitment.

• Defining test strategies and architectures across development and production
• Designing BIT and diagnostic approaches to maximise system coverage
• Improving test equipment requirements and specifications
• Analysing production test data to identify trends and diagnose failures
• Supporting critical design reviews and technical investigations
• Mentoring engineers and shaping best practice across the test organisation

• Electronic circuit design and test
• Failure analysis and root cause investigation
• Test equipment design
• Design for Test (DfT) or testability engineering
• Requirements capture and technical specification

• Influence test strategy across major development programmes
• Work at the intersection of electronics design, production and diagnostics
• Significant technical autonomy
• Strong package including a bonus up to 27%, car allowance and 14% pension

• Defining test strategies and architectures across development and production
• Designing BIT and diagnostic approaches to maximise system coverage
• Improving test equipment requirements and specifications
• Analysing production test data to identify trends and diagnose failures
• Supporting critical design reviews and technical investigations
• Mentoring engineers and shaping best practice across the test organisation

• Electronic circuit design and test
• Failure analysis and root cause investigation
• Test equipment design
• Design for Test (DfT) or testability engineering
• Requirements capture and technical specification

• Influence test strategy across major development programmes
• Work at the intersection of electronics design, production and diagnostics
• Significant technical autonomy
• Strong package including a bonus up to 27%, car allowance and 14% pension

• Root-cause analysis of complex system behaviour
• Improving reliability and determinism in simulation environments
• Refactoring legacy Ada code where needed, without breaking everything around it
• Supporting and improving CI/CD pipelines and automated test coverage
• Getting a deep understanding of system architecture, not just your component

• Ada is core; you’ll need to be comfortable working with it day-to-day
• CI/CD pipelines and automated testing are part of the workflow
• Agile environment, but this isn’t Jira-ticket churn, it’s problem-solving

• Enjoys debugging systems at a deeper level
• Is comfortable working in existing, complex codebases
• Cares about software quality, not just delivery speed
• Wants to understand how the whole system behaves, not just their bit

• Salary up to £64,000
• Bonus
• Pension up to 14%
• Paid overtime
• Up to 15 days flexi leave
• Excellent on-site facilities

• Leading a team delivering embedded software for complex defence systems
• Providing technical oversight across the software lifecycle
• Planning delivery, managing cost, schedule and quality
• Working closely with systems, hardware and integration teams
• Supporting design decisions and solving difficult technical problems

• Experience leading or mentoring embedded software engineers
• Strong understanding of the software development lifecycle
• Background in C, C++ or Ada development
• Knowledge of configuration management and software integration
• Ability to estimate work, manage delivery and communicate clearly with stakeholders

• Salary circa £70,000
• Bonus up to 21%
• Pension up to 14% combined
• Hybrid working (4-5 days on site)
• Excellent site facilities

Salary:                   Up to £85,000 P/A + excellent bonus & benefits

Hours:                   37 hours per week

Do you want to join a business, who value inclusivity, a three-time gold investor in people award winner, an advocate of supporting women in engineering and developing their people to be the best they can be? Are you prepared to join an outstanding team that is at the forefront of advanced technology?

Are you an experienced FPGA Engineering Manager, an inspirational Leader passionate about people who enjoys contributing to developing and enhancing future capabilities? If so, then this role could be for you? Join an expanding FPGA team and be part of a company that is at the forefront of innovation and play a major role in shaping its future.

Benefits of working here:

• State of the art technology & innovation
• External learning and development encouraged
• Light and airy university type campus
• Friendly environment!
  • Restaurant, On site Medical Centre, Parking / Easy Access to train station, Coffee Shops & Onsite Shop, Sports & Social Club and More

The Opportunity

We are seeking an exceptional FPGA Engineering Manager to lead a high-performing team in developing cutting-edge FPGA-based solutions. The ideal candidate combines deep technical expertise in FPGA design and architecture with outstanding leadership, mentorship, and organisational skills. This role requires someone who can drive technical excellence, scale team capabilities, and deliver world-class products on schedule. Key responsibilities include:

• Leadership & Management
• Technical Ownership
• Project Delivery

Skills Required:

What we're looking for from you includes:

• A minimum  of degree qualified in Electronic Engineering, Computer Engineering, or related field.
• 10+ years of FPGA or digital hardware design experience, with at least 3–5 years in a technical leadership or management role.
• Proven track record delivering complex FPGA systems from concept to production.
• Strong experience with RTL design, simulation, synthesis, timing analysis
• Deep understanding of high-speed interfaces, digital signal processing (DSP), control logic design and Image Processing.

You will need to obtain UK Security Clearance for this role. This will require you to either be a UK Citizen or dual national with British Citizenship. Some restrictions may apply.

Cirrus Selection offers the services of an Employment Agency for permanent recruitment and the services of an Employment Business for contract recruitment.

Location:         Stevenage (On site due to workload classification)

Hours:             37 hours per week

Ready to lead integration on a complex, high-profile defence programme?

We’re looking for a hands-on Functional Integration Lead to drive system integration and verification activities through a critical phase of delivery. Reporting to the Chief Systems Proving Engineer, you’ll own the planning and execution of integration campaigns, lead proving activities, and play a key role in preparing systems for ground and flight trials.

You’ll translate requirements into robust integration strategies, oversee software and compatibility activities, manage governance for trials readiness, and shape future integration approaches — including the introduction of advanced test environments. Alongside technical leadership, you’ll plan resources, develop team capability, and engage confidently with suppliers, stakeholders and customers.

This role suits a decisive, adaptable engineer who thrives in fast-paced environments, can balance technical depth with programme strategy, and is comfortable making informed decisions under pressure.

What you’ll bring:

• Strong experience in integration and test activities
• Solid understanding of hardware/software integration
• Knowledge of PX4 architecture
• Experience with lab test equipment and data analysis tools
• A proactive, solutions-focused mindset

If you enjoy complex challenges, taking ownership, and shaping how integration is delivered in the future — we’d love to hear from you.

You’ll need to be a British citizen, eligible for UK security clearance.

Cirrus Selection offers the services of an Employment Agency for permanent recruitment and the services of an Employment Business for contract recruitment.

Salary:                  Circa £75,000 P/A d.o.e. + benefits

Hours:                  37 hours per week

Do you want to join a business, who value inclusivity, a three-time gold investor in people award winner, an advocate of supporting women in engineering and developing their people to be the best they can be?

We have an exciting opportunity for an experienced Team Lead – RF Design to join an ambitious, highly regarded, scientific engineering / manufacturing business that are in a position of sustained growth.

The Team Lead position will require a strong technical background in RF design with a proven ability to lead work packages and provide day-to-day leadership and guidance to the team.

You will be working alongside another Team lead, the Group Lead, and other Technical Experts, where you will be responsible for leading the design and delivery of some of the most exciting and challenging projects in the UK defence industry.

We are looking for someone with a proven track record in leading and delivering complex RF design packages, while collaborating in a diverse cross-functional organisation. A flair for leadership and people management is also highly beneficial although training and development opportunities can be provided.

Benefits of working here:

• State of the art technology & innovation
• External learning and development encouraged
• Light and airy university type campus
• Friendly environment!
  • Restaurant, On site Medical Centre, Parking / Easy Access to train station, Coffee Shops & Onsite Shop, Sports & Social Club and More

Skills Required: 

• Team leadership both technical and functional with the ability to inspire and drive high performing teams
• Proven practical RF (component level) design and testing of RF circuits across a wide frequency range (e.g., 30MHz to 30GHz, including LNA Amplifier, High Power Amplifier, filter, local oscillator, synthesiser, modulator design etc)
• Good knowledge of digital, analogue, and power supply design
• Experience using RF and Antenna design tools (e.g. Microwave Office, HFSS), including layout
• Fully conversant with modern Radio Transceiver System architecture and design
• Fully conversant with manufacturing techniques and capabilities, including design for manufacture and test
• Experience in Project Management and the planning of tasks/activities (use of Excel, P6 or MS Project beneficial) On Time on Cost, On Quality

You will need to obtain UK Security Clearance for this role. This will require you to either be a UK Citizen or UK Dual Citizen. Some restrictions may apply.

Cirrus Selection offers the services of an Employment Agency for permanent recruitment and the services of an Employment Business for contract recruitment.

Salary:                   Up to £65,000 P/A + benefits (plus excellent bonus and benefits)

Hours:                   37 hours per week

Do you want to join a business, who value inclusivity, a three-time gold investor in people award winner, an advocate of supporting women in engineering and developing their people to be the best they can be?

We have an exciting opportunity which has arisen in a highly skilled EMC (Electro-magnetic Compatibility) and RE (Radiation Effects) projects team for a new team leader, based in Bristol

The EMC team provides specialist advice, strategy and guidance to all complex EMC programmes from the concept through design, proving and into in service. You will work across multiple programmes and across three main strands: requirements, design and proving.

You will have access to extensive military EMC test capabilities also managed separately within the EMC department, which will be used to qualify product developments against the electromagnetic environment requirements. Your team will be responsible for investigating and/or deploying novel digital proving techniques and methodology. In addition to supporting the project teams directly, you will be managing and coordinating the project activities your team performs.

Benefits of working here:

• State of the art technology & innovation
• External learning and development encouraged
• Light and airy university type campus
• Friendly environment
  • Restaurant, On site Medical Centre, Parking / Easy Access to train station, Coffee Shops & Onsite Shop, Sports & Social Club and More

Skills Required:

• Degree qualified in a STEM related subject with experience in a similar role or looking to take the next step
• The ability to manage activities on time, on cost and on quality, deploying key project management principles to ensure delivery success
• Adaptability - a proactive, willing, helpful attitude and a calm professional manner, even when things are changed at the last minute
• A clear passion for people management and development. Investing in the growth of team members through feedback, training and mentorship
• A high level of emotional intelligence, with the ability to help foster a positive, inclusive and supportive environment
• Knowledge of electrical, electronic and electromagnetic engineering is highly desirable, but not essential
• The role will require a basic understanding of EMC; however, this can be developed in the role

You will need to obtain UK Security Clearance for this role. This will require you to be either a full UK Citizen or dual national with British Citizenship. Some restrictions may apply.

Cirrus Selection offers the services of an Employment Agency for permanent recruitment and the services of an Employment Business for contract recruitment.

If you are a serious Modelling & Simulation Engineer who actually wants to work on meaningful, complex systems, not just tweak models in the corner, then this is worth your attention.

Our client is growing in a big way. They have new projects landing, capability expanding, and a clear need for engineers who can think, challenge, and deliver, not just follow process.

This isn’t theory, it is real engineering.

You will be working across high-impact programmes spanning marine, aerospace, defence, and emerging technology. From flight control systems, vehicle dynamics to submarine autopilots, you will be using and designing real-time models. The kind of work that sharpens your edge, quickly.

What you’ll actually be doing:

• Building and validating models at system and vehicle level
• Defining control algorithms and performance requirements
• Getting hands-on with MATLAB / Simulink
• Collaborating with smart engineers who know their craft
• Presenting your work to clients who expect clarity, not waffle

What you’ll bring:

• Degree qualified in a related discipline preferably Aerospace Engineering, Mechanical Engineering, Electrical Engineering or Mathematics
• Strong grounding in modelling, simulation, and systems thinking
• Experience in Hydro-actuated systems, Electro-mechanical actuated systems, Multi-body simulation, and vehicle dynamics
• Confidence with tools like MATLAB / Simulink and version control
• The ability to think critically, not just execute tasks

And let’s be clear…

This will suit someone who’s either:

• Ready to step up into a more senior, broader role
  OR
• Already operating at Principal level and wants more impact, not more meetings

The Environment
Supportive | technical | genuinely collaborative | hybrid working

No fluff, no gimmicks; just proper engineering work, with people who take pride in doing it well.

If that sounds like your kind of role, then please get in touch.

You will need to be a British citizen, and eligible for UK security clearance.

Cirrus Selection — specialist recruiters to the engineering and technology sectors, offers the services of an Employment Agency for permanent recruitment and the services of an Employment Business for contract recruitment.

Term                     Permanent (37 hours per week)

Package              Up to £52,500 p/a | Overtime | Flexi | Hybrid (3 days on-site) | Bonus | Pension

Ready to work on cutting-edge defence technology that truly matters?

A world-leading defence organisation are looking for a Systems Engineer to join a growing, high-impact team working on a product that is important to national and allied security, supporting both UK and international defence programmes.

This is your chance to step into a role where engineering meets real-world impact.

What You’ll Be Doing

• Bridging the gap between design and manufacturing
• Developing and improving commissioning procedures
• Getting hands-on in the lab with real equipment and experimentation
• Driving process improvements through simplification and automation
• Supporting international programmes, including technology transfer to Poland

Why This Role Stands Out

This isn’t just theory; it’s hands-on systems engineering with visible outcomes. You will:

• Work across multidisciplinary teams
• Tackle genuine engineering challenges
• Influence both current delivery and future capability
• Gain broad exposure across the full engineering lifecycle

What We’re Looking For

A well-rounded Systems Engineer who thrives in a collaborative environment, with experience or interest in:

• Transition to manufacture
• Software development & deployment
• Configuration control
• Hardware/software integration

What’s in It for You

Bonus up to £2,500, Pension up to 14% total contribution, Flexible & hybrid working, Up to 15 additional flexi leave days, Paid overtime opportunities, Enhanced parental leave (up to 26 weeks), Healthcare cash plan, Excellent on-site facilities (including subsidised meals & free parking)

If you’re looking for a role where your engineering expertise directly contributes to national and international defence capability, then this is it.

Apply now through Cirrus Selection and take your next step into high-impact systems engineering. If you’re ready to step into something with real engineering substance, you know what to do.

You will need to be a British citizen, or dual national with British Citizenship, and eligible for UK security clearance.

Cirrus Selection — specialist recruiters to the engineering and technology sectors, offers the services of an Employment Agency for permanent recruitment and the services of an Employment Business for contract recruitment.

• Extra Low Voltage and Low Voltage electrical design
• Grounding, bonding, screening and EMC-conscious layouts
• Platform and vehicle-based power supply and distribution
• Electrical installation design for mobile systems
• Certification to BS 7671 for transportable or military equipment
• Integration of electro-mechanical machinery in constrained environments

• Space is limited
• Environments are harsh
• Power stability is critical
• Certification matters
• Failure is not an option

• Practical experience in LV/ELV electrical installation design
• Experience with mobile, transportable, vehicle or defence platforms
• Knowledge of BS 7671 certification in non-domestic environments
• Experience in grounding, bonding and EMC-aware design
• Experience with safety-critical electro-mechanical systems

• Uninterruptible power systems design
• Military or defence exposure
• Experience supporting trials and testing of electrical installations

• Extra Low Voltage and Low Voltage electrical design
• Grounding, bonding, screening and EMC-conscious layouts
• Platform and vehicle-based power supply and distribution
• Electrical installation design for mobile systems
• Certification to BS 7671 for transportable or military equipment
• Integration of electro-mechanical machinery in constrained environments

• Space is limited
• Environments are harsh
• Power stability is critical
• Certification matters
• Failure is not an option

• Practical experience in LV/ELV electrical installation design
• Experience with mobile, transportable, vehicle or defence platforms
• Knowledge of BS 7671 certification in non-domestic environments
• Experience in grounding, bonding and EMC-aware design
• Experience with safety-critical electro-mechanical systems

• Uninterruptible power systems design
• Military or defence exposure
• Experience supporting trials and testing of electrical installations

• Extra Low Voltage and Low Voltage electrical design
• Grounding, bonding, screening and EMC-conscious layouts
• Platform and vehicle-based power supply and distribution
• Electrical installation design for mobile systems
• Certification to BS 7671 for transportable or military equipment
• Integration of electro-mechanical machinery in constrained environments

• Space is limited
• Environments are harsh
• Power stability is critical
• Certification matters
• Failure is not an option

• Practical experience in LV/ELV electrical installation design
• Experience with mobile, transportable, vehicle or defence platforms
• Knowledge of BS 7671 certification in non-domestic environments
• Experience in grounding, bonding and EMC-aware design
• Experience with safety-critical electro-mechanical systems

• Uninterruptible power systems design
• Military or defence exposure
• Experience supporting trials and testing of electrical installations

• Strong PCB layout experience, ideally in RF, high-speed, analogue, power, SI or EMC
• A good understanding of fabrication, stack-ups, and design for manufacture
• Confidence contributing to design reviews and influencing outcomes
• The ability to work with engineers, not just take instructions

• Up to £55,000 salary, plus bonus
• 14% pension, flexi leave, paid overtime
• Hybrid working, typically 2 days on site
• A genuinely supportive engineering environment, not just words on a page

• Strong PCB layout experience, ideally in RF, high-speed, analogue, power, SI or EMC
• A good understanding of fabrication, stack-ups, and design for manufacture
• Confidence contributing to design reviews and influencing outcomes
• The ability to work with engineers, not just take instructions

• Up to £55,000 salary, plus bonus
• 14% pension, flexi leave, paid overtime
• Hybrid working, typically 2 days on site
• A genuinely supportive engineering environment, not just words on a page

• Has hands-on RF circuit design experience
• Is comfortable fault-finding at board level
• Knows their way around VNAs, spectrum analysers and power meters
• Understands design for manufacture and test
• Can move from concept to lab proving without drama

• Has hands-on RF circuit design experience
• Is comfortable fault-finding at board level
• Knows their way around VNAs, spectrum analysers and power meters
• Understands design for manufacture and test
• Can move from concept to lab proving without drama

• Has hands-on RF circuit design experience
• Is comfortable fault-finding at board level
• Knows their way around VNAs, spectrum analysers and power meters
• Understands design for manufacture and test
• Can move from concept to lab proving without drama

• Commercial Management experience in Defence or similar environments
• Leadership and line management experience
• Strong contract drafting and negotiation capability
• Confidence operating across bids and programme delivery
• Understanding of MoD contracting structures

• Salary circa £62k–£70k
• Bonus up to 21%
• Pension up to 14% combined contribution
• Hybrid working, 2–3 days on site
• Long-term programme security

• Advanced DSP, image processing, software-defined radio
• Complex SoC architectures
• FPGA and embedded software integration
• Safety and security critical systems

• Proven team leadership
• Background in FPGA, digital hardware or embedded software
• Experience integrating embedded systems onto real hardware
• Someone who plans, owns work packages, and delivers
• Someone who can challenge the norm and raise the bar

• Circa £65,000
• Bonus up to £2,500
• Up to 14% pension
• Paid overtime
• Flexi leave, up to 15 additional days
• Real progression in a complex engineering environment

• Owning end-to-end software architecture across high-integrity systems
• Defining structure, interfaces, and real-time behaviour
• Turning requirements into robust, scalable designs
• Working closely with engineers, architects, and technical specialists
• Influencing tools, technologies, and long-term strategy

• Strong software design and architecture experience
• A background in complex or real-time systems
• Confidence making technical decisions that others rely on
• Ability to explain the “why” behind design choices
• Experience across multiple languages or tech stacks

• Bonus up to 21%
• Pension up to 14%
• Clear route into senior / strategic architecture
• Hybrid working, typically 3–4 days on site
• Work that genuinely has real-world impact

• Owning end-to-end software architecture across high-integrity systems
• Defining structure, interfaces, and real-time behaviour
• Turning requirements into robust, scalable designs
• Working closely with engineers, architects, and technical specialists
• Influencing tools, technologies, and long-term strategy

• Strong software design and architecture experience
• A background in complex or real-time systems
• Confidence making technical decisions that others rely on
• Ability to explain the “why” behind design choices
• Experience across multiple languages or tech stacks

• Bonus up to 21%
• Pension up to 14%
• Clear route into senior / strategic architecture
• Hybrid working, typically 3–4 days on site
• Work that genuinely has real-world impact

Overtime | Bonus | Up to 14% Pension Contribution | Excellent Career Potential

Salary                                   Circa £55,000, depending on experience

Location                                Bristol

Hours                                   37 per week

Stop playing small. Start building what others can’t.

There are jobs, and then there are roles where you actually shape outcomes. This is one of those.

We are looking for a System Performance Lead to join a very interesting special project team, working on next-gen, high-impact systems that don’t tolerate mediocrity, and don’t need babysitting.

If you’re the kind of engineer who doesn’t just run models but questions them, challenges assumptions, and pushes performance to the edge of what’s possible, keep reading.

What you’ll actually do:

• You will take ownership.
• You will evaluate system performance against real-world scenarios, not textbook theory.
• You will run trade studies that influence design, not just document it.
• You will define modelling strategies, build the models, own the algorithms, and stand behind the outputs.
• Plus, you will put your name to performance statements that customers rely on.

You won’t be a passenger here; you will be in the driver’s seat.

What you bring:

• DV-cleared, or willing to go through the DV process
• A systems engineering background that isn’t one-dimensional
• MATLAB and Simulink experience
• You can analyse data, tell the story, and defend it
• You collaborate, but you don’t hide in the crowd

What’s in it for you:

• Bonus up to £2,500; Pension up to 14% combined; Paid overtime when you earn it; Up to 15 days flexi leave; Genuinely flexible working conversations; Enhanced parental leave; and much more.

If you want to be trusted, challenged, and part of something that actually matters, then you already know what to do.

Security
You must be a British Citizen as this role requires you to gain not only SC Clearance, but DV also.

Cirrus Selection — specialist recruiters to the engineering and technology sectors, offers the services of an Employment Agency for permanent recruitment and the services of an Employment Business for contract recruitment.

• Capture and structure high-level customer and regulatory requirements
• Define and review system architectures and interfaces
• Ensure clean requirement flow-down into hardware and software
• Lead and support structured Verification & Validation activity
• Drive best-practice systems engineering aligned to the V-model
• Influence product coherence, commonality and future roadmap decisions

• Strong Systems Engineering experience within aerospace or other high-integrity, regulated environments
• Proven experience across the full product lifecycle
• Solid grounding in RF, communications systems or radio technologies
• Experience with VHF/UHF, CNS or aviation communications is highly desirable
• Degree in Engineering, Physics or related discipline (or equivalent depth of experience)

• Stable, long-established engineering business
• Products with real-world operational impact
• Technical depth and long lifecycle programmes
• Flexible working
• 25 days’ holiday + bank holidays
• Up to 8% pension contribution
• Private healthcare
• Ongoing professional development

• Real system-level ownership, not just a small slice of the puzzle
• Work across RF, signal processing, modelling and systems design
• Exposure to high-performance, complex defence systems
• A team that blends experienced engineers with genuine technical depth
• Flexible working, strong benefits, and long-term career development

• An RF Engineer looking to move into systems
• A Systems Engineer wanting to deepen RF knowledge
• A Modelling or Signal Processing Engineer interested in real-world application

• RF or microwave systems
• Systems engineering, requirements, or design
• Signal processing, modelling, or waveform design
• Integration, testing, or product lifecycle work

• Real system-level ownership, not just a small slice of the puzzle
• Work across RF, signal processing, modelling and systems design
• Exposure to high-performance, complex defence systems
• A team that blends experienced engineers with genuine technical depth
• Flexible working, strong benefits, and long-term career development

• An RF Engineer looking to move into systems
• A Systems Engineer wanting to deepen RF knowledge
• A Modelling or Signal Processing Engineer interested in real-world application

• RF or microwave systems
• Systems engineering, requirements, or design
• Signal processing, modelling, or waveform design
• Integration, testing, or product lifecycle work

• Working alongside software engineers across the full lifecycle
• Leading and supporting project quality assessments
• Identifying risks, issues, and areas for improvement
• Driving best practice across processes, standards, and assurance
• Influencing teams to deliver better, more robust software

• Experience in software development and/or quality assurance
• Understanding of software lifecycle and engineering processes
• Exposure to standards, assurance, or regulated environments
• Strong communication, able to challenge and influence
• Calm, structured thinking when things get complex

• Real engineering impact on complex, high-profile systems
• Clear development path within quality and assurance
• Strong benefits package, including bonus, pension, overtime and flexible working
• A collaborative environment where quality has a voice

• Minimum HNC level of qualification or equivalent in a relevant subject (HND/Degree preferred) plus experience in digital and analogue electronics manufacture and test.
• A good understanding of electrical/electronic measurement and test principles, test equipment, as well as fault diagnosis techniques for electronic/electro-mechanical sub-assemblies.
• Experience using both manual and automated test equipment, preferably in a defence organisation or similar manufacturing environment.
• Familiar with enterprise resource planning and manufacturing execution system programs (e.g. SAP, MES) for recording test activities and generating non-conformance reports and concessions.
• Good verbal and written communication skills, including generation of test specifications, operator instructions and technical reports based on higher-level requirements.

• Strong contract lifecycle experience
• Confidence negotiating terms and managing change
• Solid understanding of risk, liabilities and IP
• Ability to influence engineers, project managers and senior leaders
• Commercial judgement, not just process knowledge

• Designing functional trials, test methodology, stimuli, and setups from use cases and requirements
• Owning trial readiness, configuration control, safety, and test integrity
• Getting hands-on with rigs, lab equipment, work-up, robustness testing, and formal qualification activity
• Logging issues properly, analysing results, and writing reports people actually use
• Acting as the glue between software and equipment teams, because you’ll know how the product behaves for real

• Practical, hands-on integration and test experience across hardware and software
• Confidence with general lab test equipment
• Methodical approach, solid documentation habits, and good engineering judgement
• Comfortable analysing complex data, Python/MATLAB helpful, not essential
• Degree, or equivalent depth, in Electronics, Electrical, RF, Physics, Software, or similar

• Proven experience developing complex software, ideally within defence, aerospace, automotive, or telecom sectors
• Deep knowledge of software security, industry standards, and best practices
• Ability to guide security aspects during product development, from concept to in-service support
• Experience with security assessments, vulnerability mitigation, and risk analysis
• Strong communication skills and a collaborative approach, capable of influencing across teams
• Experience or interest in embedded software, firmware, or emerging technologies (desirable)
• A STEM degree or equivalent experience

• Senior-level experience in procurement or supplier relationship management
• Strong background in digital, IT, or technology-enabled services
• Confidence engaging senior internal stakeholders and strategic suppliers
• Solid contract knowledge across the full lifecycle
• MCIPS qualified or working towards

• High-impact, strategic role in a critical digital domain
• Hybrid working, typically two days on-site
• Excellent benefits including bonus, pension, and enhanced parental leave
• Meaningful work supporting UK and allied defence capability

• Senior-level experience in procurement or supplier relationship management
• Strong background in digital, IT, or technology-enabled services
• Confidence engaging senior internal stakeholders and strategic suppliers
• Solid contract knowledge across the full lifecycle
• MCIPS qualified or working towards

• High-impact, strategic role in a critical digital domain
• Hybrid working, typically two days on-site
• Excellent benefits including bonus, pension, and enhanced parental leave
• Meaningful work supporting UK and allied defence capability

• Competitive salary circa £64,000 (dependent on experience)
• Up to 21% company bonus
• Enhanced pension contributions (up to 14%)
• Flexible hybrid working
• Generous parental leave and excellent site facilities

Salary:                   Up to £53,000 P/A + benefits (plus Overtime, Flexi and Bonus)

Hours:                   37 hours per week

Do you want to join a business, who value inclusivity, a three-time gold investor in people award winner, an advocate of supporting women in engineering and developing their people to be the best they can be?

We are looking for a Systems Engineer to join a department delivering a laser directed energy weapon system to the Royal Navy within the next two years.

The Laser Systems Engineer will be a flexible, motivated, and technically astute engineer who will continue to develop this system into a world class, deployable, LDEW air defence system. The ambitious plans involve parallel and interleaved streams of pioneering technology, experimentation and rapid system development, providing opportunities across the key system domains of Systems Engineering: requirements, design, performance analysis and certification.

Benefits of working here:

• State of the art technology & innovation
• External learning and development encouraged
• Light and airy university type campus
• Friendly environment
  • Restaurant, On site Medical Centre, Parking / Easy Access to train station, Coffee Shops & Onsite Shop, Sports & Social Club and More

Skills Required:

• PhD or industry experience in the development of laser technology at a system level
• In-depth understanding of laser physics and optics, with the ability to influence and contribute to the design and development of a cutting-edge laser systems and technology
• Ability to support technical mediation, communicating issues, architectures and ideas at all levels
• Demonstrated ability in technical mediation, communicating complex laser and optics concepts, architectures, and ideas effectively at all levels, from high-level management and technical experts to systems engineering specialists and non-technical stakeholders
• Ability to develop excellent working relationships with partners and customers/key stakeholders as well as team members and other departments
• A passion for problem-solving, persistence, and a commitment to delivering high-quality results

You will need to obtain UK Security Clearance for this role. This will require you to be either a full UK Citizen or dual national with British Citizenship. Some restrictions may apply.

Cirrus Selection offers the services of an Employment Agency for permanent recruitment and the services of an Employment Business for contract recruitment.

Package               Up to £67,000 p/a | Plus, excellent bonus | Pension | Life Assurance + More

Location               Bristol

Term                     Permanent | 37 hours per week

Some leadership roles talk about impact; this one delivers it.

This is your chance to take ownership of a critical sub-system used across multiple high-profile programmes. You will shape the strategy, lead the engineering, and drive delivery from concept through to in service support.

This is not just management, this is design authority, accountability and Influence.

You will define the roadmap, win new work, and lead a team of systems engineers delivering complex, secure, high integrity products. You will work across software, hardware, cyber, and human factors, pulling it all together into something that works, scales, and lasts.

If you enjoy operating at the intersection of engineering depth and strategic leadership, this will feel like home.

What you will be doing

• Owning the product line strategy and long-term roadmap
• Acting as Design Authority across a family of sub-system products
• Leading development from early concept through to delivery and support
• Driving bids and securing new programme work
• Managing interfaces across multiple programmes and engineering teams
• Leading systems engineering activity, requirements, V&V, certification
• Collaborating with software, hardware, cyber and human factors teams
• Engaging senior stakeholders and external suppliers

What you will bring

• Strong systems engineering background within complex product development
• Experience leading across the full lifecycle, from concept to in service support
• Strategic thinking with a product line mindset
• Proven ability to engage and influence senior stakeholders
• Experience managing work packages and delivering through teams
• Knowledge of secure, Windows based product environments is highly valuable

What is on offer

• Salary circa £67,000, depending on experience
• Bonus up to 21.25%
• Pension contribution up to 14% combined
• Flexible and hybrid working options
• Enhanced parental leave and family friendly policies
• On site facilities including subsidised meals and free parking
• Healthcare cash plan and wider benefits

The environment
You will operate in a highly collaborative engineering environment, working across multiple disciplines and programmes. The work is complex, the standards are high, and the outcomes matter.

Security
You must be a British Citizen or a Dual UK national with British citizenship. BPSS clearance is required as a minimum to start.

Cirrus Selection — specialist recruiters to the engineering and technology sectors, offers the services of an Employment Agency for permanent recruitment and the services of an Employment Business for contract recruitment.

• Designing and developing real-time embedded software
• Building scalable, robust architectures for high-performance systems
• Working closely with hardware and systems teams, not in isolation
• Debugging, optimising, and getting systems ready for real-world use
• Contributing to integration, verification, and test at system level

• Strong C/C++ experience in embedded or real-time environments
• Experience with multi-threaded systems and performance optimisation
• API design and development (preferably Rest).
• A practical, delivery-focused mindset
• Exposure to CI/CD, Git, and modern development practices

Salary:                   Up to 60,000 P.A. Dependent on experience (overtime, 4 day working week)

Hours:                   37.5 hours per week

Some roles tick boxes, but this one design and builds things that matter.

If you are a Mechanical Design Engineer who thrives on solving complex problems, turning ideas into real, working hardware, and seeing your designs perform in the harshest environments, keep reading.

This is not a rinse and repeat design job, this is special projects. Fast moving, high integrity, and genuinely interesting work.

You will take requirements and turn them into robust, manufacturable solutions. You will design complex mechanisms and sub systems. You will prototype, test, prove, and refine. You will work alongside experienced engineers and Design Authorities who expect high standards and back good ideas.

You will be hands on. You will be challenged. You will grow.

What you will be doing

• Designing innovative mechanical solutions from concept through to production
• Creating detailed models using CREO Parametric
• Producing calculations and analysis to support your designs
• Collaborating with SMEs, users, and engineering teams to shape concepts
• Developing sub system solutions alongside multidisciplinary teams
• Supporting prototype build, testing, and design proving
• Presenting design reviews to senior stakeholders
• Ensuring compliance with industry standards and safety requirements

What you will bring

• Proven experience designing mechanical components and sub systems
• Experience working in defence, aerospace, or space is highly valued
• Strong CAD capability, ideally CREO, plus Windchill experience
• Understanding of materials, treatments, and manufacturing processes
• Ability to perform structural and kinematic calculations
• A track record of delivering designs that work in demanding environments
• High attention to detail and strong documentation skills
• A problem-solving mindset and the ability to work as part of a team

The reality

• Based on site in Ampthill, 4 days per week, Monday to Thursday
• 37.5 hours, with flexible working built in
• Competitive salary, bonus, and a comprehensive benefits package
• Work that is technically challenging and genuinely meaningful

Security
This role requires Developed Vetting. You will need to be a sole UK national and either hold DV clearance already or be willing to go through the process immediately. Support is provided.

If you want safe, predictable, and low pressure, this is not it.

If you want to stretch your engineering capability, work on complex systems, and be part of a team that delivers, this is worth a conversation.

Cirrus Selection offers the services of an Employment Agency for permanent recruitment and the services of an Employment Business for contract recruitment.

• Proven electronic design experience
• Confidence across analogue and digital technologies
• The ability to work in structured, safety-critical environments
• A team mindset, this isn’t solo-hero engineering

• Up to £48,000 salary
• Bonus up to £2,500
• 14% pension
• Paid overtime
• Up to 15 days flexi leave
• Hybrid working
• Strong long-term programme stability