Software Engineer, Java Developer, Full Stack Developer

Overview

At CGI, you'll work at the heart of delivering modern digital solutions that help our clients solve complex challenges and achieve meaningful outcomes. As a Senior Software Engineer, you will design and build high-quality applications that combine robust backend services with intuitive user experiences. You'll be trusted to take ownership of technical delivery, contribute ideas that shape solutions, and collaborate closely with talented colleagues across disciplines.

Supported by a culture that values innovation, learning, and shared success, you'll have the opportunity to grow your expertise while making a tangible impact on client services and products.

In this role, you will design, develop, and maintain scalable web applications using Java and React, contributing across the full software development lifecycle. You will work closely with product managers, designers, and fellow engineers to deliver features end-to-end, ensuring solutions are reliable, secure, and user-focused. You'll take responsibility for code quality and performance, contribute to technical decision-making, and help evolve engineering standards and practices.

Supported by experienced peers, you'll have the freedom to solve problems creatively while delivering consistently high-quality outcomes.

• Design & develop backend services using Java and modern frameworks such as Spring Boot
• Build & enhance responsive frontend applications using React
• Develop & consume RESTful APIs to support scalable architectures
• Write & maintain clean, well-tested, and maintainable code
• Collaborate across multidisciplinary teams to deliver features end-to-end
• Review code, share knowledge, and contribute to engineering best practice
• Troubleshoot, optimise & improve application performance
• Support CI/CD pipelines and deployment activities

• Strong experience with Java and frameworks such as Spring or Spring Boot
• Solid experience with React, JavaScript (ES6+), HTML, and CSS
• Experience designing and building RESTful APIs using JSON
• Familiarity with relational and/or No
  
  SQL databases
• Experience using Git or other version control systems
• A problem-solving mindset with strong communication skills

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. Come join our team-one of the largest IT and business consulting services firms in the world.

Discover CGI London, England, United Kingdom > 1000 employees IT services. We are a global business with 91,500 professionals across hundreds of locations worldwide, providing end-to-end IT and business process services that drive our clients  businesses. In the UK alone, we have around 6,000 member-partners working across 19 towns and cities, doing everything from writing complex code to designing sophisticated software solutions.

The work we do powers some of the most ambitious projects that touch the lives of many. Our approach sets us apart, characterised by our proximity model, international presence, expertise, and operational excellence. We organise our operations within metro markets where our clients have concentrated footprints, empowering our local teams to build trusted, in-person relationships. As you build your career here, you ll develop your skills, share your insights, and work side-by-side with colleagues and clients on innovative solutions that address the most complex issues.

Our…