Java Engineer

At CGI, you will help engineer secure, resilient systems that underpin critical services and deliver real-world impact. As a Senior Java Engineer, you will play a key role within a collaborative delivery team, designing and building scalable solutions that support complex programmes. You will be trusted to take ownership of your work, encouraged to bring curiosity and creativity to technical challenges, and supported by a culture that values learning, shared success and continuous improvement. This is an opportunity to deepen your expertise, broaden your skillset and make a meaningful contribution within an organisation that empowers its engineers. Due to the secure nature of the programme, you will need to hold SC Clearance or be eligible to obtain it. This is a hybrid role, with an expectation of working 1–2 days per week on site in our Sheffield office, with flexibility for remote working for the rest of the time.

Responsibilities

In this role, you will contribute to the design, development and maintenance of software systems within a modern engineering and DevOps environment. Working as part of a collaborative team, you will help build reliable, maintainable and scalable solutions across a microservices-based architecture, with a primary focus on Java while remaining open to working across the wider stack where needed. You will collaborate closely with other engineers to review code, improve delivery practices and support deployment and operational processes. You will be encouraged to apply sound engineering judgement, explore new ideas and technologies, and continuously improve both the solutions you build and the way the team works. Key responsibilities include:

• Design & develop backend services and APIs using Java (or C# where appropriate)
• Build & maintain scalable solutions within a microservices architecture
• Collaborate on code design, reviews and technical decision-making
• Contribute to front-end features using React and TypeScript when required
• Support deployment and operational processes using AWS and Kubernetes
• Improve team practices, tooling and delivery approaches
• Apply a pragmatic, problem-solving mindset to engineering challenges

You will be a senior, hands-on engineer with strong Java experience and a broad understanding of modern software delivery. You will enjoy working collaboratively, be comfortable operating across technologies, and bring a practical, adaptable approach to solving problems in complex environments. You should have:

• Strong backend development experience using Java (or C#)
• Experience building and supporting services within microservices architectures
• Familiarity with cloud and containerised environments (AWS, Kubernetes, Helm)
• Experience using Git, CI/CD pipelines and modern developer workflows
• Good communication skills and a collaborative, team-focused mindset
• Curiosity and willingness to learn across the stack and tooling

• GIT
• GIT
• Java
• Kubernetes