Full Stack Software Engineer

Position Description:

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

Your future duties and responsibilities:

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.

Key responsibilities:

• 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 DevOps 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

Required qualifications to be successful in this role:

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

#LI-MW2

Skills:

• GIT

• RESTful (Rest-APIs)

• Angular

• C#

• JavaScript

• Python

• Spring Boot

What you can expect from us:

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

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.