Infrastructure Test Engineer - Secure Cloud Infrastructure (SC Clearance)

Free-Work UK; Gloucester; On-site; GBP 70,000 - 90,000; Full time

Benefits offered by this job

Private healthcare

Pension plan

Employee share scheme

Job summary

CGI is seeking an Infrastructure Test Engineer to validate performance, resilience, and security of complex infrastructure across cloud and on‑prem environments near Gloucester. You will own validation processes, develop automated tests, and contribute to high‑quality releases in a security‑minded culture.

You will work with DevOps, SRE, and engineering teams to embed testing into CI/CD pipelines, designing comprehensive test plans and ensuring robust infrastructure‑as‑code deployments for

Qualifications

• Experience in infrastructure testing, QA, or engineering roles.
• Strong understanding of compute, storage, networking, and virtualization.
• Proficiency in Linux/Unix environments and scripting (Bash, Python).
• Experience with automation tools (Terraform, Ansible, Puppet).
• Familiarity with cloud platforms (AWS, Azure, GCP) and hybrid environments.
• Exposure to containers (Docker, Kubernetes).
• Knowledge of networking and security best practices.

Responsibilities

• Design & Execute infrastructure test plans across cloud and on-prem environments.
• Automate & Maintain test scripts using Python, Bash, Terraform, or Ansible.
• Integrate & Support testing within CI/CD pipelines (e.g., Jenkins, GitLab CI, Azure DevOps).
• Validate & Assure infrastructure-as-code deployments and configuration changes.
• Monitor & Analyse system performance using tools like Prometheus, Grafana, ELK.
• Collaborate & Align with DevOps, SRE, and engineering teams.
• Document & Improve test cases, results, and quality processes.

Skills

Infrastructure testing

Scripting (Bash/Python)

Linux/Unix

Networking & security basics

Tools

Terraform

Ansible

Puppet

Job description

At CGI, our Space, Defence and Intelligence business unit delivers mission-critical systems that help keep the UK safe and secure.

As an Infrastructure Test Engineer, you will play a vital role in assuring the performance, resilience, and security of complex infrastructure platforms across cloud and on-premise environments. Working on high-impact programmes, you will help deliver quality-driven outcomes through rigorous testing and automation. You’ll take ownership of validation processes, contribute innovative approaches to testing, and collaborate with expert teams in an environment that supports continuous development and meaningful impact.

CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named a UK ‘Best Employer’ by the Financial Times. 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, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant. Join us and you’ll be part of an open, friendly community of experts. We’ll train and support you in taking your career wherever you want it to go.

Due to the secure nature of the programme, you will need to hold UK Security Clearance or be eligible to go through this clearance. This position will be based on site near Gloucester 5 days a week.

Candidate Profile

In this role, you will design and execute comprehensive testing strategies to validate infrastructure platforms, ensuring performance, reliability, and security across complex environments. You will take ownership of infrastructure testing activities, from developing automated test scripts to validating infrastructure-as-code deployments, supporting high-quality releases into production.

You will work closely with DevOps, SRE, and engineering teams to integrate testing into CI/CD pipelines, enabling continuous delivery and rapid feedback. Within a collaborative and supportive environment, you will contribute creative solutions to improve testing coverage, enhance automation, and ensure infrastructure solutions meet the highest standards.

• Design & Execute infrastructure test plans across cloud and on-prem environments
• Automate & Maintain test scripts using tools such as Python, Bash, Terraform, or Ansible
• Integrate & Support testing within CI/CD pipelines (e.g., Jenkins, GitLab CI, Azure DevOps)
• Validate & Assure infrastructure-as-code deployments and configuration changes
• Monitor & Analyse system performance using tools like Prometheus, Grafana, ELK
• Collaborate & Align with DevOps, SRE, and engineering teams
• Document & Improve test cases, results, and quality processes

Required Qualifications To Be Successful In This Role

You should have strong experience in infrastructure testing or engineering, with a solid understanding of enterprise infrastructure components and modern DevOps practices. You will bring a proactive approach to quality assurance, along with the ability to work collaboratively across technical teams in complex environments.

• You should have experience in infrastructure testing, QA, or engineering roles
• Strong understanding of infrastructure (compute, storage, networking, virtualization)
• Proficiency in Linux/Unix environments and scripting (e.g., Bash, Python)
• Experience with automation tools (Terraform, Ansible, Puppet)
• Familiarity with cloud platforms (AWS, Azure, GCP) and hybrid environments
• Exposure to containers (Docker, Kubernetes)
• Knowledge of networking and security best practices