Location
London (primarily based on a secure client site with attendance required five days per week; occasional flexibility may be possible subject to business needs and security constraints)

Hours
Full Time, standard working hours

Salary
Competitive salary with excellent benefits including pension, private healthcare, and share scheme (3.5% + 3.5% matching)

About the Role
Join CGI, recognised in the Sunday Times Best Places to Work List 2025 and named one of the 'World's Best Employers' by Forbes. As a Site Reliability Engineer within CGI's Space, Defence and Intelligence business unit, you will work on technically complex, mission-critical systems that support government agencies in keeping us safe and secure. This role offers fantastic opportunities to work with leading-edge bespoke technologies in a highly rewarding environment. You will be part of a cross-functional team partnering with clients to define, guide and assure the delivery of integrated solutions. CGI is committed to inclusivity and diversity, supporting career development through excellent learning and development opportunities to keep your skills aligned with evolving technology. We foster a culture of innovation, collaboration and ownership where highly motivated self-starters thrive. Due to the secure nature of this project, candidates must hold or be eligible to obtain a high level of UK Security Clearance, requiring sole British nationality, UK residency for the past 10 years, and limited time spent outside the UK. Individuals without current clearance are encouraged to apply and may be considered for this and other suitable roles within CGI.

Experience
- Background in Software Engineering including automation scripts, infrastructure as code, tooling/framework development, ideally with Java and/or Python
- Experience with engineering enablement products such as CI/CD, Observability and Alerting
- Experience creating designs and documentation including user guides
- Experience investigating and resolving incidents and problems aligned to SLAs
- Continuously seeking opportunities for system performance improvements

About You
A passionate learner with a drive for innovation and a willingness to contribute across the technology stack. Highly motivated self-starter who thrives in a collaborative environment. Ability to learn quickly and adapt to evolving technology landscapes.

Qualifications
Desirable skills include:
- Experience working on AWS
- Linux and Windows administration
- Containerisation technologies such as Docker, Kubernetes or OpenShift
- Knowledge of security protocols such as PKI, TLS
While not all skills are required, experience across multiple areas is advantageous.