Linux Systems Engineer – On‑Site Defence Tech

Onyx-Conseil; Greater London; Hybrid; GBP 60,000 - 80,000; Full time

Benefits offered by this job

Private healthcare

Excellent pension

Share scheme (3.5% + 3.5% matching)

Job summary

CGI is looking for an experienced System Engineer to join our Space, Defence and Intelligence team in the UK. The role focuses on delivering secure, mission-critical systems for government clients, with strong emphasis on collaboration and innovation.

Applicants must be sole British nationals with eligibility for UK Security Clearance. The position is site-based, five days a week, with potential flexibility aligned to security constraints and project needs.

Qualifications

• Experience as a System Engineer in defence/space or government IT environments.
• Ability to work in cross-functional teams and liaise with clients.
• Willingness to obtain and hold UK Security Clearance.

Responsibilities

• Define, guide and assure delivery of integrated solutions with CGI's Space, Defence and Intelligence unit.
• Work on site full-time at a secure client site in the UK, with occasional flexibility where needed.
• Collaborate with clients and internal teams to ensure secure, robust systems.

Job description

CGI is looking for an experienced System Engineer to join our Space, Defence and Intelligence team in the UK. The role focuses on delivering secure, mission-critical systems for government clients, with strong emphasis on collaboration and innovation.

Applicants must be sole British nationals with eligibility for UK Security Clearance. The position is site-based, five days a week, with potential flexibility aligned to security constraints and project needs.