Cirrus Selection Limited

Senior Software Engineer Location: Bristol Our client is seeking passionate and skilled software engineers with exceptional problem-solving and critical thinking abilities. Ideal candidates will be analytical, detail-oriented, and self-motivated. Salary & Working Conditions • Salary: Up to £64,000 depending on experience • Dynamic (hybrid) working: 5 days per week on-site, due to workload classification • Security Clearance: British Citizen or a Dual UK national with British citizenship. Restrictions and/or limitations relating to nationality and/or rights to work may apply. As a minimum and after offer stage, all successful candidates will need to undergo HMG Basic Personnel Security Standard checks (BPSS), managed by our client s Personnel Security Team. What They Offer • Company bonus: Up to £2,500 (based on company performance and varies year to year) • Pension: Maximum total (employer and employee) contribution of up to 14% • Overtime: Opportunity for paid overtime • Flexi Leave: Up to 15 additional days • Flexible working: They welcome applicants seeking flexible arrangements • Enhanced parental leave: Up to 26 weeks for maternity, adoption, and shared parental leave, with enhancements available for paternity, neonatal, and fertility treatments • Facilities: Excellent site facilities including subsidised meals, free parking, and more The Opportunity Their Human Machine Interface (HMI) and Cyber team is seeking Principal Software Engineers to help develop the future laser defence capability for the Royal Navy. They are looking for engineers with both a deep and broad range of experience in software engineering, from requirements through to certification. Successful candidates will have led technical implementation and delivery of complex solutions, as well as supported and mentored other engineers. They are committed to developing careers and supporting personal growth while ensuring a healthy work/life balance is maintained. What They re Looking For • Strong proficiency in C++ programming • Proven record of delivering software products on complex systems • Experience and knowledge of all aspects of the Software Development Lifecycle, especially requirements and design • Ability to build strong relationships with internal and external stakeholders • Experience mentoring and supporting junior engineers • Collaborative and open approach to problem-solving with excellent communication skills Knowledge or interest in the following is desirable but not essential: • Windows / Linux OS lockdown • Software Security and Safety requirements • HMI development / design • Automated Testing About Our Client Our client is a leading defence organisation, proud to support the Armed Forces and partner with governments in safeguarding freedom and sovereignty. They value diversity and inclusion, with active employee-led networks such as Gender Equality, Pride, Parents & Carers, Armed Forces, Ethnic Diversity, Neurodiversity, and more. They encourage candidates to reach out if they require any support or adjustments during the recruitment process. Cirrus Selection offers the services of an Employment Agency for permanent recruitment and the services of an Employment Business for contract recruitment.

Lead Software Developer Stevenage / Bristol Our client has an exciting opportunity for a proactive and passionate Lead Software Developer to join their expanding Weapon Systems Simulation and Experimentation (WSSE) team. They deliver innovative solutions that provide an end-to-end representation of advanced weapon systems, making this a unique opportunity to work at the forefront of defence technology. Key Details: Salary: Circa £65,000 (depending on experience) Location: Stevenage or Bristol (relocation package may be available) Working Pattern: Hybrid, 3 4 days per week on-site The Opportunity: This is a hands-on role working closely with Project Leads, Simulation Architects and the wider client project team. You ll lead the development of synthetic environments using the C family of programming languages, combining technical leadership with project management and team guidance. The WSSE team is integral to weapon system and system architecture development across the full product life cycle. They integrate real products, models and synthetic environments to provide visualisations, demonstrations, verification and validation, as well as training support. This role will give you the opportunity to: Grow your skills and support the full development lifecycle Develop a broad systems engineering perspective and drive technical innovation Work on world-leading defence systems from initial concepts to in-service support Utilise advanced visualisation techniques (AR/VR) and demonstrations Be part of a team driving experimentation and developing new capabilities for domestic and international customers What they re looking for: Proven experience as a Lead Software Engineer, adaptable and creative in approach Strong background in software development (C# and C++) Ability to lead a small development team and advance simulation environments Robust problem-solving skills and an open approach to software design Exposure to real-time software development and simulation standards (DIS, HLA) is an advantage About our client: They are a leading defence organisation, proud to support the Armed Forces in protecting national security. They work closely with governments to deliver innovative solutions, ensuring freedom and sovereignty. What they can offer you: Company Bonus: Up to 21% of base salary Pension: Up to 14% total contribution (employer and employee) Enhanced parental leave: Up to 26 weeks maternity, adoption and shared parental leave, with enhancements for paternity, neonatal leave and fertility support Fantastic site facilities: Subsidised meals, free car parking and more Training and Development: Excellent career progression and development opportunities Cirrus Selection offers the services of an Employment Agency for permanent recruitment and the services of an Employment Business for contract recruitment.

Senior Test Software Engineer Location: Stevenage Salary: Up to £75,000 (DOE) Headline Benefits: A bonus of up to £2,500, Paid Overtime, Strong pension, 25 days annual leave with the option to accrue 15 additional days flexi leave, enhanced parental leave. We re working with an award-winning, engineering organisation, who are looking for a Senior Software Engineer who will work within Test Software, collaborating across Electronic Engineering, a Test Centre of Excellence and Software Engineering to deliver a UK- wide test capability. The Senior Software Engineer role The Test Software team work to deliver test capability in partnership with colleagues in Electronic Design, the Test Centre of Excellence and other areas of Software Engineering. Their mission is to facilitate robust and timely testing of missile systems. Spanning a diverse portfolio of work packages, the team directly influences the company s product certification, manufacturing output and support activities. Specifically, they are responsible for developing and supporting software packages that utilise Test Equipment hardware to configure, verify and validate the conformance and quality of our UK product range from development, through production and into field test scenarios. It is a multi-disciplined, dynamic, focused and agile team specialising in all aspects of test solution design, including software, hardware, simulation and real-time systems. It is great a place to learn about the company's entire product portfolio, whilst embracing the change to DevOps and other innovative technologies! Senior Software Engineer experience required A software or electronics engineer with transferable talent into software development for test solutions: Strong ability to write software in languages such as C, C++, C# or ADA and motivated to develop reliable, high-performance software. Excellent analytical and design ability, including review and critical analysis. Can do and flexible approach you ll enjoy solving technical problems extending beyond the bounds of software . Keen to work on novel products where the software you produce is time and mission-critical Able to communicate effectively with Systems Engineering, Electronics and Electrical, and Test and Validation The business are firm believers in offering all staff the best possible platform to succeed, providing support for career development as well as personal assistance. They hold numerous awards on the back of this work and have a range of employee networks and internal communities that include Parents and Carers, Gender Equality, Neurodiversity, Pride, Ethnic Diversity and many more. They really care about their staff and are passionate about what they do and why they do it. Due to the nature of the business, this particular vacancy requires all applicants as a minimum to be a British Citizen or a Dual UK national with British citizenship and capable of achieving the clearance levels required by the business Cirrus Selection offers the services of an Employment Agency for permanent recruitment and the services of an Employment Business for contract recruitment.

Software Engineer C/C++ The Hardware-in-the-Loop (HWIL) team conducts the most complete test of missiles other than a firing. The client designs complex, real-time simulations that surround real missile hardware to allow engineers to fire missiles indoors . Salary: Circa £55,000, depending on experience Dynamic (hybrid) working: 4 - 5 days per week on-site due to workload classification What the client can offer you: Company bonus of up to £2,500 (based on company performance and will vary year to year) Pension of maximum total (employer and employee) contribution of up to 14% Annual salary review Paid overtime Up to 15 days flexi leave 25 days annual leave (plus holiday purchase) Fantastic site facilities, including subsidised meals, free car parking and more Excellent career progression and development opportunities The opportunity: The client is looking for ambitious engineers with a growth mind-set to join their team. If you re the right person, you ll find a supportive environment, surrounded by passionate experts while being part of a collaborative and driven team. As a HWIL Software Engineer, you ll be responsible for developing and maintaining the underlying real-time software tools that enable simulations of real missile hardware and control of innovative equipment. You ll also support the deployment of these tools in designing simulations and running experiments. You should be able to adapt to new engineering situations and be comfortable abstracting detail in order to understand both the simulations and missile behaviour. What they re looking for: Software design Software design for real-time applications Familiarity with Linux operating system Familiarity with C/C++ Use of microcontrollers (e.g. Raspberry Pi) Interface debugging and system integration Familiarity with Object-Oriented approaches (beneficial) The client: They re a leading defence organisation, proud of the role they play in supporting the Armed Forces who protect our nations. They partner with governments to work together towards a common goal: defending our freedom. Cirrus Selection offers the services of an Employment Agency for permanent recruitment and the services of an Employment Business for contract recruitment.

ADA Embedded Software Engineer Stevenage Our client has a fantastic opportunity for an experienced ADA Embedded Software Engineer to contribute to the development of current and future missile control systems. This role is a chance to work at the cutting edge of defence technology, where your expertise will directly support mission-critical projects. Key Details: Salary: Circa £57,000 (depending on experience) Working Pattern: Hybrid, with 4 5 days per week on-site Location: Stevenage, with excellent site facilities What s on offer: Annual company bonus (up to £2,500) Pension contribution up to 14% Opportunity for paid overtime Up to 15 days flexi leave Flexible working arrangements considered Enhanced parental leave (maternity, adoption, shared parental, paternity, neonatal, fertility treatment) Subsidised meals, free parking and excellent site facilities The Role: As an ADA Embedded Software Engineer, you will design, develop and deliver embedded software for missile subsystems. You ll work across the full software development lifecycle, from requirements and architecture to detailed design, implementation, testing and delivery. The role involves close collaboration with systems design, electronics, safety, security and quality teams, making it varied and engaging. What they re looking for: Strong experience in developing embedded software using Ada and C/C++ Experience with real-time systems Model-based development experience (UML, IBM Rhapsody or similar tools) Collaborative and flexible problem-solving mindset Commitment to code quality, with experience in code and design reviews Ability to develop maintainable and extensible code Strong communication skills to work across multiple engineering disciplines About our client: They are a leading defence organisation, proud to support the Armed Forces in protecting national security. Working in partnership with governments, they are committed to defending freedom and sovereignty. They also foster an inclusive culture with employee-led networks, including Gender Equality, Pride, Menopause Matters, Parents & Carers, Armed Forces, Ethnic Diversity, Neurodiversity, and Disability. Cirrus Selection offers the services of an Employment Agency for permanent recruitment and the services of an Employment Business for contract recruitment.

Lead Software Developer Stevenage / Bristol Our client has an exciting opportunity for a proactive and passionate Lead Software Developer to join their expanding Weapon Systems Simulation and Experimentation (WSSE) team. They deliver innovative solutions that provide an end-to-end representation of advanced weapon systems, making this a unique opportunity to work at the forefront of defence technology. Key Details: Salary: Circa £65,000 (depending on experience) Location: Stevenage or Bristol (relocation package may be available) Working Pattern: Hybrid, 3 4 days per week on-site The Opportunity: This is a hands-on role working closely with Project Leads, Simulation Architects and the wider client project team. You ll lead the development of synthetic environments using the C family of programming languages, combining technical leadership with project management and team guidance. The WSSE team is integral to weapon system and system architecture development across the full product life cycle. They integrate real products, models and synthetic environments to provide visualisations, demonstrations, verification and validation, as well as training support. This role will give you the opportunity to: Grow your skills and support the full development lifecycle Develop a broad systems engineering perspective and drive technical innovation Work on world-leading defence systems from initial concepts to in-service support Utilise advanced visualisation techniques (AR/VR) and demonstrations Be part of a team driving experimentation and developing new capabilities for domestic and international customers What they re looking for: Proven experience as a Lead Software Engineer, adaptable and creative in approach Strong background in software development (C# and C++) Ability to lead a small development team and advance simulation environments Robust problem-solving skills and an open approach to software design Exposure to real-time software development and simulation standards (DIS, HLA) is an advantage About our client: They are a leading defence organisation, proud to support the Armed Forces in protecting national security. They work closely with governments to deliver innovative solutions, ensuring freedom and sovereignty. What they can offer you: Company Bonus: Up to 21% of base salary Pension: Up to 14% total contribution (employer and employee) Enhanced parental leave: Up to 26 weeks maternity, adoption and shared parental leave, with enhancements for paternity, neonatal leave and fertility support Fantastic site facilities: Subsidised meals, free car parking and more Training and Development: Excellent career progression and development opportunities Cirrus Selection offers the services of an Employment Agency for permanent recruitment and the services of an Employment Business for contract recruitment.

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? As part of our Systems Design Emerging Portfolio and Capability function you will deliver systems engineering expertise to projects focussing on the front end of the product life cycle, designing the latest Complex defence capabilities for the UK and partner nation Armed Forces. The opportunity: Whether embedded in a multi-disciplinary team, or leading an individual work package, you will gain broad engineering experience, engaging partners, co-ordinating technology specialists, and developing advanced systems engineering techniques. Through our people management opportunities, you can learn to lead teams, and play a part in developing the engineers of the 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 Skills Required: Systems engineering experience in any of the following skill areas: Requirements and Use Case analysis Concept assessment and design trade studies System architecture design and functional modelling Performance assessment and systems behaviour analysis Verification, Validation and Certification Model based engineering techniques, including MBSE Broader engineering management experience is welcome, particularly gained through leadership of work packages, integration of complex activities or, managing technical relationships with customers or suppliers. You will need to obtain UK Security Clearance for this role. This will require you to either be a UK 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.