Java Engineers (all levels)

At CGI, we’re shaping the future of digital UK Government solutions, building secure, high-impact platforms that improve services for millions across the UK. As a Java Engineer, you’ll play a pivotal role in designing and developing scalable, resilient back-end systems using the latest Java and microservices technologies. You’ll collaborate with skilled professionals who take ownership of their work, share ideas freely, and are empowered to create solutions that make a lasting difference. This is an opportunity to contribute to a variety of major national UK Government programmes where innovation, teamwork, and continuous learning come together to deliver meaningful results for our clients and help improve UK citizens' lives.

CGI was recognised in the Sunday Times Best Places to Work List 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 our work programmes, you will need to hold UK Security Clearance or be eligible to go through this clearance. These roles will be predominately hybrid with some work based in UK CGI or client offices depending on the specific programme. Travel away from base office will be expensed.

Your future duties and responsibilities:

• Design, develop, and maintain secure, high-performing Java applications that underpin key public services.
• Work collaboratively within a cross-functional team to help shape modern architectures using microservices and cloud-native technologies.
• Contribute to all stages of the development lifecycle, from technical design and implementation through to testing and optimisation.
• Take ownership of your work, bring forward creative ideas, and leverage the support of a highly experienced team that values collaboration and continuous improvement.

Key responsibilities include:

• Build and enhance Java-based microservices using Spring Boot and related frameworks.
• Work closely with developers, architects, and testers to ensure technical excellence and timely delivery.
• Improve performance, scalability, and maintainability of systems through continuous iteration.
• Participate in agile ceremonies, share knowledge, and support a culture of quality and innovation.
• Ensure all solutions meet strict security and compliance requirements.

Required qualifications to be successful in this role:

You should have experience developing large-scale enterprise applications using Java and microservices frameworks, alongside a solid understanding of secure, scalable system design. You’ll bring an analytical mindset, collaborative approach and a drive to deliver high-quality code that meets user and business needs. We are looking for candidates who have experience of either back end, front end or, ideally, full stack software and application development and engineering.

Required experience:

• Proven experience as a Java Developer or Senior Software Engineer.
• Strong proficiency in Java, Spring Boot, and RESTful API development.
• Experience with microservices architecture and containerisation (e.g., Docker, Kubernetes).
• Familiarity with Agile/Scrum methodologies and CI/CD pipelines.
• Understanding of cloud environments (AWS/Azure/GCP) and DevOps principles.

Skills:

• Back End Development
• GitHub
• Java
• JPA
• RESTful (Rest-APIs)
• Spring Boot
• Front End Development
• Full Stack Development