Senior Systems Engineer

Senior Systems Engineer

Location: This is a Hybrid role. Whiteley, Hampshire
Clearance Required: This role will require attainment and maintenance of SC clearance

At Leidos, we deliver innovative technology and solutions that help safeguard critical capabilities and transform frontline services. Our work spans Air Traffic Management, Public Services, Defence, Healthcare, Government, Safety, and Security, helping to solve some of the UK’s most complex challenges. We are looking for Systems Engineers to join our growing team and support the delivery of critical programmes that will help shape the future of UK Air Traffic Management. Working as part of a collaborative team, you’ll contribute to systems engineering activities across the full lifecycle, partnering with stakeholders, users, suppliers, and architects to define requirements, develop solutions, and deliver high-quality engineering outputs.

What You’ll Be Doing

• Deliver systems engineering activities across complex programmes.
• Define and manage system requirements with stakeholders and suppliers.
• Develop models, designs, and architecture artefacts using MBSE approaches.
• Support compliance activities, technical reviews, and project milestones.
• Produce engineering documentation, designs, and technical analyses.
• Conduct trade studies and solution evaluations.
• Contribute to the development of integrated solutions using COTS and bespoke technologies.

What We’re Looking For

• Knowledge of systems engineering within complex environments.
• Experience with architecture modelling tools and frameworks such as SysML, TOGAF, MODAF, ArchiMate, Cameo, or similar.
• Ability to develop requirements, system models, and design artefacts.
• Strong collaboration skills, working across multidisciplinary teams.
• Experience assessing technical solutions and supporting design decisions.
• Understanding of service-oriented, virtualised, or cloud-based environments.
• Strong communication skills with both technical and non-technical audiences.

What we do for you

At Leidos we are PASSIONATE about customer success, UNITED as a team and INSPIRED to make a difference. We offer meaningful and engaging careers, a collaborative culture, and support for your career goals, all while nurturing a healthy work-life balance. We provide an employment package that attracts, develops and retains only the best in talent.

Our reward scheme includes:

• Contributory Pension Scheme
• Private Medical Insurance
• 33 days Annual Leave (including public and privilege holidays)
• Access to Flexible benefits
• Flexi Working

Pay and Benefits

Pay and Benefits Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here.

• competitive compensation
• Health and Wellness programs
• Income Protection
• Paid Leave
• Retirement

Commitment and Diversity

We welcome applications from every part of the community and are committed to a truly diverse and inclusive culture. We foster a sense of belonging, welcoming all perspectives and contributions, and providing equal access to opportunities and resources for everyone.

If you have a disability or need any reasonable adjustments during the application and selection stages, please let us know, and we will respond in a way that best fits your needs.

Who We Are

Leidos UK & EUROPE – we work to make the world safer, healthier, and more efficient through technology, engineering and science. Leidos is a growing company delivering innovative technology and solutions focused on safeguarding critical capabilities and transformation in frontline services, our work in the United Kingdom includes addressing some of the most complex problems in defence, healthcare, government, safety and security, and transportation. Working together as Team Leidos we are helping to transform the UK’s defence supply chain by providing an integration of a complex mixture of services, at low risk, using a modern suite of systems that will deliver one version of the truth. For the first time, the MOD will see the whole picture, as it is happening.

What Makes Us Different

Purpose: you can use your passion and abilities at Leidos to keep the people you care about safe. We are at the forefront of machine learning, AI, cyber security and solutions. Using your skills in the technology frontline by helping to build a safer world. You can inspire change. Collaboration: having flexibility to do your job is one of our core benefits, enabling you to become part of our extraordinary team. We have been empowering our people to work flexibly for years. Whether you work from home, the office or on customer sites, we will give you the digital tools and the flexibility to work smarter and align your needs and ours. People: Leidos empowers people from every background to be themselves and gives you the tools to learn new skills by enabling growth whilst developing. We believe that extraordinary people need opportunities to grow, to be inspired and to inspire others. At Leidos, we invest in technical academies, career rotations and a career development plans that that enhance your future. If you’re looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo—because the mission demands it. We’re not hiring followers. We’re recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We’re already at step 30 — and moving faster than anyone else dares.

Pay Range

£61,500.00-£78,800.00

Commitment and Diversity (Legal)

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

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