Overview
Site Reliability Engineer (DV Security Clearance) – CGI, Gloucester, UK – Full time.
CGI UK Careers - Your mission found here. 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. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a CGI partner not just an employee. We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector.
CGI Space, Defence and Intelligence focuses on delivering technically complex, mission-critical systems for government agencies. We are currently looking for an experienced Site Reliability Engineer to join our cross-functional team to help define, guide and assure the delivery of integrated solutions with our clients.
Responsibilities
* Support and delivery of a cloud-based big data project.
* Configuration of software improvements and maintenance of deployment environments.
* Automating manual processes and supporting changes to live systems when needed.
* Support live service and change management in production environments.
* Adapt to client problems and maintain a positive, solution-focused mindset.
Tech Stack
* Java
* Python
* Javascript (Typescript)
* Vue
* Bash
* Jenkins
* Ansible
* Cucumber
* NiFi
* Go
* AWS
* Gitlab
* ELK stack
* Terraform
* Grafana
* Sonarqube
* OpenShift
* Linux
Qualifications & Skills
* Proven experience in Site Reliability Engineering or a similar DevOps/SRE role supporting cloud-based applications.
* Strong scripting and automation skills using Bash, Python, or Go.
* Experience with CI/CD pipelines and tools such as Jenkins, GitLab CI, and Ansible.
* Proficiency in managing infrastructure-as-code with tools like Terraform.
* Solid understanding of AWS services and cloud-native architecture.
* Strong troubleshooting skills with experience in Linux-based environments.
* Experience with monitoring and logging tools such as Grafana, ELK Stack, and SonarQube.
* Familiarity with container orchestration using OpenShift (or Kubernetes equivalent).
* Ability to support, maintain, and improve deployment environments, ensuring reliability and scalability.
* Comfortable with live service support and change management in production environments.
* Strong communication skills and a positive, solution-focused mindset, with the ability to adapt to changing client needs.
Desirable Skills
* Hands-on experience with Apache NiFi for data flow management.
* Exposure to Java, JavaScript/TypeScript, and Vue for full-stack understanding.
* Experience with BDD frameworks like Cucumber.
* Background in supporting or working on big data projects is highly advantageous.
Qualifications
* Degree in Computer Science, Engineering, or related technical field (or equivalent practical experience).
* Relevant certifications in AWS, DevOps, or SRE practices are a plus.
Additional
* #LI-JS2
* DevOps
* Nifi
* OpenShift
* Terraform
Together, as owners, let's turn meaningful insights into action. Life at CGI is rooted in ownership, teamwork, respect and belonging. You are invited to be an owner from day 1 as we work together to bring our Dream to life. We call ourselves CGI Partners rather than employees and offer opportunities to shape our company’s strategy and develop your skills. Your work creates value and helps you build relationships with teammates and clients while scaling ideas with global capabilities. You will be supported by leaders who care about your health and well-being.
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