Capgemini UK Defence and Security Careers

About Capgemini in UK Defence & Security

Capgemini is a global company with over 420,000 employees in more than 50 countries, delivering global revenues of €22.5bn.

The UK is one of Capgemini’s fastest‑growing markets, with growth in 2025 of 10.5%. Our business spans Applications and Technology, Operations and Engineering, and Strategy and Transformation.

By joining the Defence and Security team, you are joining a global priority area in the fastest growing region of the organisation. Our cleared workforce has grown rapidly over the last five years and continues to expand, working on projects that support the defence and national security of the UK.

You will work in a team with a start‑up mentality, backed by the strength and firepower of a global organisation. We are investing more in Defence and Security than any other market and building infrastructure that brings mission‑critical capability to the forefront of our offering.

Now is a time where individuals can shape direction and have impact.

Our Mission

Our mission is to serve well, supporting our clients as they confront the most complex and critical challenges facing the United Kingdom.

The world is changing at an unprecedented pace. Technological revolutions in cloud, AI and cyber, coupled with geopolitical instability, demand that the UK Government deliver transformative solutions at speed.

As part of our team at Capgemini, you will help deliver critical capabilities that UK citizens and frontline services rely on. For over 15 years, we have delivered world‑class technological solutions in high‑stakes environments.

You’ll work across disciplines with our government partners to turn complexity into resilient, compliant services and capabilities — delivered at pace and with measurable impact.

Our team, and our clients, demand honesty, integrity and respect. In return, this account offers a career of excitement, growth and opportunity.

Why Capgemini in Defence & Security

At Capgemini, we are driven by a shared purpose:
Unleashing human energy through technology for an inclusive and sustainable future.

We are a trusted partner to the Defence and Intelligence communities, built on shared values and long‑standing relationships. We believe people make the difference when delivering transformational technology — nowhere more so than in Defence and Security.

We are ambitious about our future and committed to building an environment where individuals can thrive, grow and make a meaningful impact.