Java jobs in United Kingdom

The Space, Defence and Intelligence business unit in CGI is a true IT Systems Integrator. We work, build and operate bespoke, technically complex, mission‑critical systems that help our clients keep us all safe and secure. We bring innovation to our clients using proven and emerging technologies, agile delivery processes and deep expertise across space, defence, intelligence, aerospace and maritime, all underpinned by our end‑to‑end cyber capability. We collaborate with global technology companies, cutting‑edge SMEs and academia to deliver the optimal solution for each client.

CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named one of the ‘World’s Best Employers’ by Forbes magazine. We offer a competitive salary, excellent pension, private healthcare and a share scheme (3.5% + 3.5% matching). We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant.

CGI Space has an exciting opportunity for an experienced Software Developer to join the Resource Management (RM) Team, delivering and supporting mission‑critical ground‑segment software for a large‑scale satellite communications enterprise. This role is well suited to a strong Java developer with a mathematical or physics background, who enjoys working on complex algorithmic problems within operational systems.