Systems Engineer - Combat Systems in Bristol

At Amentum, we’re not just solving problems; we’re engineering the future. Our team is driven by an unyielding commitment to innovation, integrity and collaboration, tackling some of the most significant challenges in science, security and sustainability. If you’re passionate about making a real impact and want to be part of a community that values ethical excellence, this is the place where your ambition can thrive. Here, we believe that success comes from continuously pushing boundaries and working together to deliver on our promises. We embrace challenges with confidence and are dedicated to creating a secure and vibrant future for all.

We’ll inspire and empower you to deliver your best work so you can evolve, grow and succeed – today and into tomorrow. We offer an exciting range of opportunities to develop your career within a supportive team who always strive to do the right thing for our people, clients and communities. People are our greatest asset, and we offer a competitive package to retain and attract the best talent. In addition to the benefits you’d expect, UK employees also receive free single medical cover and digital GP service, family‑friendly benefits such as enhanced parental leave pay and free membership of employee assistance and parental programmes, plus reimbursement towards relevant professional development and memberships. Work‑life balance and flexibility is a key focus area for us. We’re happy to discuss hybrid, part‑time and flexible working hours, patterns and locations to suit you and our business.

About the Opportunity

Amentum are offering an exciting opportunity to join our growing team of professionals to work on a range of projects for our diverse client portfolio that covers Critical National Infrastructure, National Security, Defence and Nuclear market sectors. Our team is growing and we are looking for proactive and collaborative professionals of all levels to work within us in providing a range of services to our clients. With our deep technical, commercial and strategic expertise we develop solutions that address our client’s critical challenges supporting digitalisation and security.

We are looking for a Systems Engineer with experience of working on Submarines and Ships Combat Systems across the full engineering lifecycle. You will play a key role in shaping complex Defence systems from concept through to design and delivery, ensuring robust, coherent solutions that underpin mission‑critical capabilities.

Key Responsibilities

• Elicit, analyse and manage stakeholder and system requirements, ensuring traceability across the lifecycle.
• Develop system architectures and design artefacts, including functional, logical and physical views.
• Contribute to the development of interface definitions and integration considerations across systems.
• Collaborate with architects, developers and integration teams to ensure coherent and feasible system designs.
• Support verification and validation planning, ensuring requirements are testable and aligned to acceptance criteria.
• Support operations in an in‑build environment and provide guidance on system installation.
• Support verification and validation activities to ensure progressive acceptance through the lifecycle.
• Contribute to systems engineering documentation and governance artefacts in line with MOD and industry standards.

Here’s What You’ll Need

• Degree qualified in Systems Engineering, Electrical Engineering or related discipline (or equivalent experience).
• Strong analytical and problem‑solving skills.
• Good communication skills, able to engage with both technical and non‑technical stakeholders.
• Ability to work collaboratively within multi‑disciplinary teams.
• Experience working within multi‑disciplinary teams on complex programmes.

Experience

• Proven experience as a Systems Engineer within Defence environments with a strong understanding of combat systems principles and lifecycle models (e.g. V‑model, Agile, hybrid approaches).
• Experience working across the systems engineering lifecycle, with a focus on requirements, architecture and design phases.
• Experience in requirements engineering, including elicitation, analysis and management.
• Ability to develop system architecture artefacts and design documentation, with an understanding of system integration concepts, interfaces and dependencies.
• Experience supporting integration and V&V activities, with an understanding of how designs translate into testable systems.
• Awareness of MOD frameworks and governance environments.
• Understanding of requirements management and modelling tools (e.g. DOORS, SparxEA).

Our Culture

Our values are built on a strong foundation of safety, integrity and respect for every individual. People are at the heart of our mission, and we believe in supporting one another through a culture of care and collaboration. We strive to create a workplace where everyone feels they belong and can thrive. Supporting mental wellbeing and fostering a sense of connection are essential to how we work. When we embrace different perspectives and work together, we become more innovative, more agile and more successful.

We partner with VERCIDA, for greater online accessibility please visit to view and access our roles. As a Disability Confident employer, we will interview all disabled applicants who meet the minimum criteria for a vacancy. We welcome applications from candidates who are seeking flexible working and from those who may not meet all the listed requirements for a role. If you require further support or reasonable adjustments with regards to the recruitment process (for example, you require the application form in a different format), please contact.