Senior Systems Engineer

Leidos are a global leader in the integration and application of information technology, engineering, and science to solve the customers' most demanding challenges.  We deliver mission-focused solutions including cloud services, enterprise IT solutions, data centre modernization, operational technology and cyber security including end-to-end cyber integration and high-grade encryption.

We are looking for a System Engineer to join the Leidos National Security & Defence team.  This is a new opportunity to work with our expanding team. Each day will be different, as you develop solutions to our customers problems.  These will cover the full development lifecycle, whilst also responding to different customer queries and issues on multiple products.

Your role in Leidos will involve working alongside our customers to solve some of their most complex and unique problems.

We seek an experienced and dynamic System Engineer to join our team, specialising in leading multidisciplinary teams to develop tools and techniques for covert operations. The successful candidate will bring a deep understanding of digital collection methodologies, cyber exploitation tools, and security vulnerabilities, along with experience conducting comprehensive security reviews.

This role will involve close collaboration with government agencies, law enforcement, and military sectors and requires a strong background in programme management, system development, and the delivery of technical information systems.

• Lead and coordinate multidisciplinary teams in designing, developing, and deploying tools and techniques for covert operations.
• Apply expertise in digital collection methodologies, cyber exploitation, and identifying and mitigating security vulnerabilities.
• Conduct security reviews and assessments to ensure systems meet operational and security requirements.
• Oversee the full lifecycle of technical information systems, from initial development to successful delivery.
• Engage with customers to understand their requirements and ensure solutions are tailored to meet their needs.
• Liaise with government agencies, law enforcement, and military stakeholders to ensure compliance with regulatory frameworks and security protocols.
• Manage projects focusing on delivering high-quality results on time and within budget.

• Postgraduate degree in a relevant subject.
• Proven experience leading teams in multidisciplinary settings, particularly in developing tools for covert operations.
• Strong digital collection, cyber exploitation, and security vulnerability management knowledge.
• Demonstrated experience in system development and delivery, including technical information systems.
• Previous experience working with government agencies, law enforcement, and military organisations.
• Expertise in programme management, with a focus on technical delivery.
• In-depth customer knowledge and the ability to tailor solutions to meet specific operational requirements.
• Excellent communication, leadership, and problem-solving skills.

• Experience conducting security reviews and risk assessments.
• Familiarity with industry-standard security frameworks and regulations.
• Ability to work under pressure and adapt to fast-changing environments.

Clearance Requirements:

• Clearance to Start: DV

• Clearance for Role: DV

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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 (including life assurance, health schemes, gym memberships, annual buy and sell holidays and a cycle to work scheme)

•    Flexi-Time

Commitment to 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.

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 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.

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.