Software Developer (DV Security Clearance)

Position Description

At CGI, we don't just build software, we engineer secure, mission-critical systems that help protect the UK and support some of its most critical national infrastructure.

As a Software Developer, you'll join the Space, Defence and Intelligence business unit, working alongside clients to design, build and evolve complex software solutions that solve real-world challenges. You'll work with modern technologies, agile delivery practices and highly skilled teams to deliver systems that are secure, scalable and built to last.

This is an opportunity to work on technically challenging programmes where innovation is encouraged, learning is continuous, and your work has genuine impact.

CGI has been recognised in the Sunday Times Best Places to Work 2025 and named one of the World's Best Employers by Forbes. As a CGI Partner, you'll benefit from industry-leading training, a collaborative culture and our unique share ownership scheme because here, you're more than an employee.

The role requires you to hold of obtain UK Security Clearance, the role will be based on a secure site.

Your future duties and responsibilities

As a Software Developer, you'll contribute across the full software development lifecycle, working within multidisciplinary teams to deliver secure solutions for our defence and intelligence clients.

You will:

• Design, develop and maintain secure, scalable software applications.
• Work across the full development lifecycle, from concept through to deployment and support.
• Collaborate closely with architects, engineers and client stakeholders to solve complex technical challenges.
• Build modern cloud-native applications using contemporary development practices.
• Improve existing systems through performance optimisation, automation and continuous improvement.
• Support live environments, troubleshooting issues and delivering enhancements.
• Share knowledge with colleagues while continually developing your own technical expertise.

Required Qualifications To Be Successful In This Role

We're looking for collaborative Software Developers who enjoy solving challenging technical problems and are passionate about delivering high-quality software. You'll be comfortable working across multiple technologies and committed to continuous learning within a fast-paced, agile environment.

Experience in some of the following areas is desirable:

• Strong programming fundamentals with experience in one or more languages such as Java, Python or Rust.
• Experience designing and developing secure, scalable and maintainable software solutions.
• Front-end development using frameworks such as React, Angular or Vue.js.
• Modern DevOps practices including GitLab CI/CD, automation and continuous integration.
• Infrastructure as Code using technologies such as Terraform or Ansible.
• Containerisation and orchestration using Docker and Kubernetes.
• Experience working with AWS or other cloud platforms.
• Agile software delivery methodologies including Scrum or Kanban.
• Strong communication skills with the ability to collaborate effectively across technical teams and clients.

Life at CGI

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 for growth.