Full Stack Software Engineer

At CGI, we design and deliver secure, scalable digital solutions that transform how organisations operate and serve their customers. As a Full Stack Software Engineer, you will take ownership of building high-quality applications across the entire technology stack, shaping architecture decisions and delivering measurable outcomes for clients across the UK. Working in collaborative, multidisciplinary teams, you will apply modern engineering practices, embrace innovation, and continuously improve how we deliver software.

With the freedom to explore new technologies - including the Microsoft Power Platform - and the support of a strong engineering community, you will play a key role in driving meaningful digital change.

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.

This is a hybrid position based out of Newcastle

In this role, you will design, develop, test, and deploy full-stack solutions within Agile delivery teams, contributing across front-end, back-end, and cloud components. You will collaborate closely with product owners, designers, architects, and clients to translate requirements into secure, scalable software that delivers real value. By taking ownership of quality, applying clean code principles, and embedding automated testing, you will help create resilient, maintainable systems that stand the test of time.

You will also contribute to technical design discussions, mentor junior engineers, and drive continuous improvement across the team. With the backing of a supportive engineering community, you will be empowered to experiment, strengthen best practice, and expand your expertise - including low-code delivery using the Microsoft Power Platform where appropriate.

• Design & Develop secure, scalable full-stack applications using modern frameworks
• Build & Integrate responsive user interfaces and robust APIs
• Own & Assure quality through automated testing and code reviews
• Collaborate & Refine requirements with clients and product teams
• Contribute & Shape architectural decisions and technical documentation
• Automate & Deliver through CI/CD pipelines and Dev Ops practices
• Apply & Promote secure coding, SOLID principles, and clean code standards
• Develop & Enable low-code solutions using Power Apps and related tools
• Mentor & Support junior engineers, fostering a high-performance team culture

You will be an adaptable and client-focused engineer with experience delivering full-stack solutions in modern Agile environments. You combine strong technical capability with a collaborative mindset, attention to quality, and the ability to engage confidently with stakeholders.

• Proven experience developing full-stack applications using technologies such as JavaScript/Type Script, C#, Java, or Python and frameworks such as React, Angular, Vue, .NET Core, Node.js, or Spring Boot
• Experience designing and implementing RESTful or event-driven APIs
• Strong understanding of secure coding practices and common vulnerabilities
• Experience writing automated unit, integration, or functional…