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Overview
At CGI, we’re shaping the future of digital transformation — empowering clients to unlock new possibilities through robust, scalable, and secure software solutions. As a Senior Java Developer, you’ll play a pivotal role in driving innovation and ensuring seamless integration across complex systems that power large-scale programmes. You’ll work within an open, collaborative culture where you can influence design decisions, mentor others, and see your ideas brought to life. This is an opportunity to contribute to mission-critical outcomes while being part of a team that values creativity, accountability, and continual learning. 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 either hold or be eligible for UK Security Clearance. This is a mainly remote position, with occasional travel as required.
Responsibilities
* Lead and Innovate: Design and implement scalable backend solutions using Java and modern middleware technologies
* Mentor and Support: Guide and develop junior team members through peer reviews, technical coaching and code quality initiatives
* Collaborate and Deliver: Work closely with clients, architects, and delivery teams to ensure requirements are clearly defined and achieved
* Develop and Optimise: Create clean, efficient, and secure code following best practices and coding standards
* Integrate and Enhance: Contribute to API development and integration strategies that strengthen business systems
* Assure and Improve: Conduct technical reviews, identify performance improvements, and ensure adherence to secure coding practices
* Own and Influence: Take responsibility for key design decisions and act as a trusted technical partner to clients
Qualifications
Required Qualifications To Be Successful In This Role
* Proven experience as a Java Developer, ideally in backend or middleware environments
* Strong understanding of APIs, microservices, and functional programming principles
* Experience with AWS, Kubernetes and containerised development
* Proficiency with DevOps practices including CI/CD pipelines
* Demonstrated ability to produce clean, maintainable and secure code
* Strong communication skills with experience collaborating across technical and client-facing teams
* Experience mentoring or supporting less experienced developers
About CGI
You’ll join one of the largest IT and business consulting services firms in the world. You’ll be part of an open, friendly community of experts, with opportunities to grow and shape your career as part of CGI Partners rather than employees.
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