Full Stack Sofware Engineer

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

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.

You should have:

Proven experience developing full-stack applications using technologies such as JavaScript/TypeScript, 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 tests

Familiarity with Git workflows and CI/CD pipelines

Experience working within Agile delivery teams

Experience building Power Apps or other low-code solutions, or willingness to upskill

It would be advantageous to have:

Experience with Azure or AWS, including serverless or containerised deployments

Knowledge of relational and NoSQL databases

Familiarity with Power Automate, Power BI, or Dataverse

Experience working in blended multidisciplinary teams

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., 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 commitment to ownership, flexibility, and
being approachable makes us easy to do business with. Join us, and together, as owners, let's turn meaningful insights into action to meet the needs and balance the interests of our clients, shareholders, communities, and each other. Benefits: - Insurance coverage - Medical benefits - Pension plan - Member Assistant Programme - Check4Cancer - Flexible time off - Share Purchase Plan - Member discounts - Dental benefits - Vision benefits - Profit Participation Plan - Health and Wellbeing Programme

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.