Defence Mission Systems Engineer

Capgemini Engineering; Tottenham; Hybrid; GBP 50,000 - 70,000; Full time

Benefits offered by this job

Access to digital learning platforms

Employee networks promoting diversity and inclusion

Job summary

Capgemini Engineering is seeking a Defence Mission Systems Engineer in the UK, ideally for projects in defence with a focus on MBSE processes. You will join a dynamic team and can work both remotely and on-site.

Ideal candidates will have an engineering degree, experience in systems engineering, and familiarity with MBSE methods. You will lead complex projects, working with top experts in the defence sector while ensuring effective stakeholder communication. Diverse and inclusive workplace culture is emphasized.

Qualifications

• Substantial experience delivering defence-related systems engineering projects.
• Experience in specification, design, development, or test of software-intensive mission systems.
• Knowledge of industry-standard processes for requirements management and validation.

Responsibilities

• Support delivery of complex systems engineering projects using an MBSE-based approach.
• Engage with stakeholders to elicit, analyze, and refine requirements.
• Lead and mentor team members, fostering a high-performing team.

Skills

Stakeholder management

Systems engineering processes

MBSE methods

Customer relationships

Collaboration

Leading MBSE toolsets

Education

Engineering or science degree

Tools

Enterprise Architect

Cameo Systems Modeler

Rhapsody

Capella

Job description

Overview

Capgemini Engineering is looking for a Defence Mission Systems Engineer, with a passion to support cutting-edge defence orientated projects and experience of delivering and influencing MBSE processes. You will join our rapidly growing team to support our UK and overseas clients across a variety of defence projects. Our portfolio of projects includes work at all stages of the system lifecycle, from concept definition to in-servicesupport. We also offer consultancy services to improve organisation’s Systems Engineering & MBSE capabilities and enable digital transformation. Capgemini operate a hybrid working model with a combination of office and home-based working, along with occasional travel to client sites. As a Senior Systems Engineer you will be working alongside some of the top experts in the country on large and complex client engagements across a variety of projects, with opportunities to grow and take on responsibility from day one.

What You’ll Do

• Support the delivery of complex systems engineering projects using an MBSE-based approach, ensuring effective integration across wider engineering processes.
• Proactively engage with stakeholders at a range of organisational levels to elicit, analyse, and refine requirements, driving projects toward successful outcomes aligned with client needs.
• Lead and mentor team members, contributing to capability development, knowledge sharing, and fostering a high-performing team.
• Contribute to successful project delivery and account growth, through strong client relationships, knowledge capitalisation, continuous improvement, and collaboration.
• Provide technical leadership and authoritative guidance on SE/MBSE approaches, best practices, and modelling standards.
• Support the development and delivery of MBSE transformation initiatives across complex organisations, encompassing people, processes, and tools.
• Develop, configure, and maintain MBSE toolsets and project environments, ensuring robust traceability and effective tool integration.

Your Profile

• Engineering or science degree, with substantial experience delivering defence-related systems engineering projects.
• Experience of the specification, design, development or test of software intensive mission systems.
• Strong knowledge of industry-standard systems engineering processes across the full lifecycle, including requirements management, system design, and verification & validation.
• Demonstrated ability to build strong customer relationships, with proven stakeholder management and experience leading teams to deliver high-value outcomes.
• Hands-on experience with SysML and the application of MBSE methods, frameworks, and modelling standards in engineering projects.
• Proficiency with leading MBSE toolsets such as Enterprise Architect, Cameo Systems Modeler, Rhapsody, and Capella.
• Working knowledge of established MBSE frameworks (e.g., Magic Grid, Harmony, Arcadia, CESAM, OOSEM, SYSMOD, CORE).
• Experience integrating requirements management tools and processes within an MBSE approach to ensure robust traceability and consistency.
• Ability to work effectively in collaborative, multi-disciplinary environments with strong communication, influencing, and presentation skills.

Make it real – what does it mean for you?

• Exposure to top global companies working with Capgemini (145 of the Fortune 500 companies).
• Open access to digital learning platforms.
• Active employee networks promoting diversity, equity and inclusion like OutFront, CapAbility or Women@Capgemini.

Capgemini Is Proud To Be a Disability Confident Employer (Level 2) Under The UK Government’s Disability Confident Scheme. We will offer an interview to all candidates who declare they have a disability and meet the minimum essential criteria for the role. Please opt in during the application process.

Need to know

• All roles will require a level of security clearance; BPSS OR Security Clearance OR Developed Vetting.
• Due to the nature of the project, this role requires sole UK nationality in order to obtain the required level of security clearance.
• Location: London, South West, or South Coast.
• Hybrid Working: 2 - 3 days in the office, depending on client needs.
• You can bring your whole self to work. Capgemini is committed to an inclusive environment for everyone.

About Capgemini

Capgemini is an AI-powered global business and technology transformation partner, delivering tangible business value. With a heritage of nearly 60 years, we are a responsible and diverse group of over 420,000 team members in more than 50 countries. We deliver end-to-end services and solutions with deep industry expertise, leveraging capabilities across strategy, technology, design, engineering and business operations. The Group reported 2025 global revenues of €22.5 billion. Make it real | www.capgemini.com