Software Developer

In this role, you will design, develop and maintain reliable, secure and scalable software solutions that support CGI’s clients and internal business operations. Working across applications, APIs and data services, you’ll take ownership of development activities from initial design through to testing, deployment and ongoing improvement. You’ll apply modern engineering practices to deliver high-quality solutions while ensuring alignment with CGI’s security, quality and governance standards.

You’ll collaborate with Developers, Architects, Testers and business stakeholders to solve technical challenges, explore innovative approaches and continuously improve software delivery. Whether working independently or as part of an agile team, you’ll have the opportunity to contribute ideas, influence technical decisions and strengthen your expertise within a supportive engineering community.

Key responsibilities:

• Design & Develop: Build, test and maintain robust applications and software solutions that meet business and technical requirements.

• Integrate & Deliver: Develop and maintain RESTful APIs, backend services and system integrations.

• Build & Optimise: Design data models and database integrations, ensuring efficient and reliable data access.

• Secure & Assure: Apply secure-by-design principles, coding standards and quality assurance practices throughout development.

• Collaborate & Innovate: Work closely with cross-functional teams to deliver effective technical solutions and introduce improvements.

• Review & Improve: Participate in code reviews, automated testing and continuous improvement activities.

• Support & Maintain: Contribute to incident resolution, problem management and change activities to maintain reliable live services.

• Document & Share: Produce clear technical documentation and share knowledge across engineering teams.

• Deliver & Evolve: Contribute to Agile, DevOps or hybrid delivery environments, supporting efficient and predictable software delivery.

To succeed in this role, you should have practical experience developing and delivering production-ready software, with a strong understanding of modern development practices and application architecture. You’ll be confident working with frontend technologies, backend services, APIs and databases, bringing a proactive approach to problem-solving and continuous improvement. Strong communication skills, attention to detail and the ability to work independently and collaboratively will be essential.

Essential skills and experience:

• Proven experience developing, testing and maintaining production-ready software applications.

• Strong knowledge of web technologies, including HTML, CSS and JavaScript.

• Experience developing backend services, RESTful APIs and application integrations.

• Practical experience working with relational and/or NoSQL databases.

• Proficiency with version control tools such as Git.

• Understanding of secure coding principles, software testing and quality assurance practices.

• Experience collaborating with multidisciplinary teams in Agile, DevOps or hybrid delivery environments.

• Strong analytical and problem-solving skills, with excellent attention to detail.

• Ability to take ownership of development tasks and deliver high-quality work within agreed timelines.

• Effective communication skills when engaging with technical and non-technical stakeholders.

Desirable skills and experience:

• Experience developing or deploying solutions within cloud environments, particularly Microsoft Azure, AWS or Google Cloud.

• Exposure to CI/CD pipelines, automation and DevOps engineering practices.

• Experience working within regulated, security-conscious or enterprise environments.

• Understanding of non-functional requirements, including performance, resilience, scalability and security.

Working environment

Together, as owners, let’s turn meaningful insights into action.

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 hold UK Security Clearance or be eligible to go through this clearance. This is a hybrid position.

At CGI, we develop innovative technology solutions that help organisations transform their operations, overcome complex challenges and achieve lasting business success. As a Software Developer, you’ll play a key role in designing, building and maintaining high-quality applications and services that deliver meaningful outcomes for our clients. You’ll take ownership of your work, contribute creative ideas and collaborate with talented professionals across engineering, architecture and delivery teams. From developing modern applications and APIs to improving performance and security, you’ll have opportunities to influence solutions and expand your technical expertise. Supported by CGI’s collaborative culture and commitment to professional development, you’ll build your skills while making a genuine impact., 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.

That same commitment to fairness extends to how we use technology. To support our recruitment team, AI tools may be used to help assess applications though they never replace human judgement. All hiring decisions remain entirely in the hands of our recruitment professionals.

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