Senior Software Engineer (Back-End)

Position Description:

At CGI our Software Engineers deliver impactful secure and scalable solutions that enable organisations to transform and thrive in a digital-first world. As we expand our engineering capability across Scotland and Northern Ireland youll play a key role in shaping high-value services applying modern practices to solve real-world challenges. Youll work in an environment that encourages ownership supports continuous growth and values creative problem-solving empowering you to build innovative solutions that make a measurable difference for our clients and communities.

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 youll be part of an open friendly community of experts. Well 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. Our teams operate within a flexible hybrid working model however on-site requirements vary by project so the ability to travel as required to meet client needs is essential.

Your future duties and responsibilities:

In this role you will design build and deliver secure scalable software solutions that underpin critical client services. Youll take ownership of the full development lifecycle from architecture and design through to deployment and optimisation applying modern engineering practices to deliver reliable high-quality outcomes. Working with technologies such as Java Python C# youll help shape robust back-end systems and contribute to innovative cloud-native solutions.

Youll collaborate with multidisciplinary teams and clients to translate requirements into impactful solutions bringing fresh ideas while ensuring alignment with business goals. Youll be supported by a collaborative environment that encourages continuous learning innovation and shared success.

Key responsibilities:

Develop robust back-end services and applications
Build and integrate RESTful APIs and microservices
Enhance scalable distributed systems
Deliver end-to-end solutions with cross-functional teams
Ensure quality and security through best engineering practices
Implement CI/CD pipelines and deployment processes
Improve system performance and reliability in production

Required qualifications to be successful in this role:

You should bring strong software engineering experience with a focus on back-end development alongside a solid understanding of modern architectures and development practices. Youll be confident working across one or more technology stacks with a proactive approach to delivering high-quality secure solutions in collaborative Agile environments.

Essential qualifications:

Proven experience as a Software Engineer or Back-End Developer
Strong proficiency in Java Python C#
Experience with frameworks such as Spring or Spring Boot
Solid understanding of RESTful APIs and microservices architecture
Experience building scalable distributed systems
Familiarity with Agile delivery and CI/CD practices
Strong problem-solving and collaborative working skills

#LI-JW1

Skills:

• .NET
• Back End Development
• C#
• Java
• Kubernetes
• Python
• RESTful (Rest-APIs)
• Spring

What you can expect from us:

Together as owners lets turn meaningful insights into action.

Life at CGI is rooted in ownership teamwork respect and belonging. Here youll 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. Thats why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our companys strategy and direction.

Your work creates value. Youll 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.

Youll shape your career by joining a company built to grow and last. Youll 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 teamone of the largest IT and business consulting services firms in the world.