Senior Test Automation Engineer in London

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 which help our clients keep us all safe and secure. We bring innovation to our clients using proven and emerging technologies, agile delivery processes and our deep expertise across the breadth of space, defence, intelligence, aerospace and maritime, all underpinned by our end-to-end cyber capability.

CGI are looking for a highly motivated Test Automation Engineer to become part of the automation testing team. The ideal candidate is a strong hands-on engineer with deep automation expertise, excellent problem-solving skills, and the ability to work independently in a fast-paced environment. 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 will be a permanent, hybrid role with occasional travel to Gatwick and/or London.

Your future duties and responsibilities:

• Develop, and maintain scalable, maintainable, and reusable automated test frameworks and utilities.
• Implement modern test architecture standards and automation best practices.
• Build and enhance end to end, API, integration, and regression automation suites.
• Collaborate closely with developers, DevOps engineers, product owners, and QA teams to ensure high quality delivery.
• Review and optimise CI/CD test execution pipelines and automated quality gates.
• Identify opportunities to improve automation coverage, execution reliability, and overall engineering efficiency.
• Troubleshoot complex automation and environment related issues across multiple platforms.
• Mentor team members and contribute to continuous improvement initiatives within the QA and engineering teams.
• Operate effectively as a self-starter with minimal supervision while managing priorities and delivering outcomes.

Required qualifications to be successful in this role:

Essential:

• C#
• TypeScript
• Playwright/Selenium
• Test automation engineering
• Strong understanding of automation framework architecture and scalable test design patterns.
• Strong knowledge of UI, API, and integration testing approaches.
• Strong analytical and troubleshooting skills.
• Excellent communication and collaboration skills.
• Proven ability to learn new technologies quickly and adapt in evolving environments.
• Self-motivated, proactive, and delivery focused mindset.

Desirable:

• Strong experience with Azure DevOps.
• Experience working with Azure cloud platform services.
• Knowledge of Kubernetes and containerised environments.
• Experience maintaining CI/CD pipelines.
• Exposure to performance testing, observability, or cloud native testing practices.

What you can expect from us:

Together, as owners, let’s turn meaningful insights into action. Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential because you are invited to be an owner from day 1 as we work together to bring our Dream to life. That’s why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company’s strategy and direction.

Your work creates value. You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise. You’ll shape your career by joining a company built to grow and last. You’ll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.