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Job Post Details

CGI logo
Senior Java Engineer
CGI
·
3.5
Swansea
Permanent, Full-time
Apply now

Job details

Pay information not provided
Company pension
Permanent, Full-time
Swansea

Full job description

At CGI, we’re helping transform public services through innovative, secure and scalable digital solutions that make a meaningful difference to communities across the UK. As a Senior Java Software Engineer, you’ll play a key role in delivering cloud-native applications that improve services and create lasting value for our clients. You’ll have the opportunity to take ownership of complex engineering challenges, bring fresh ideas to modern technology solutions and help shape technical excellence across our teams. Working alongside talented professionals in a collaborative, supportive environment, you’ll be empowered to innovate, share your expertise and develop your career while contributing to high-impact public sector programmes.

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 but will require working on client site in Swansea 3 days per week.

Your future duties and responsibilities

In this role, you will take ownership of designing, developing and delivering high-quality Java applications that support the modernisation of critical public services. Working with Java, Spring Boot and AWS, you’ll build secure, scalable cloud-native solutions that deliver meaningful outcomes for our clients. You’ll have the freedom to explore innovative approaches, solve complex technical challenges and influence engineering decisions while ensuring solutions meet demanding security, performance and regulatory requirements.

As a senior member of an Agile engineering team, you’ll collaborate with architects, product owners, business analysts and DevOps specialists to deliver reliable, maintainable software. You’ll also help develop the capabilities of others through mentoring, knowledge sharing and technical guidance, supported by a culture that encourages continuous learning and professional growth.

Key responsibilities:

  • Design & Develop: Build, test and maintain enterprise-grade applications using Java, Spring Boot and microservices architectures.
  • Innovate & Deliver: Develop secure, scalable cloud-native solutions using AWS technologies and engineering best practices.
  • Optimise & Enhance: Design and improve data solutions using PostgreSQL, DynamoDB and other database technologies.
  • Collaborate & Influence: Work across multidisciplinary Agile teams to translate business requirements into effective technical solutions.
  • Lead & Mentor: Conduct code reviews, provide technical guidance and support the development of junior engineers.
  • Automate & Improve: Contribute to CI/CD practices, automated testing and continuous improvement of software delivery.
  • Secure & Assure: Ensure applications meet public sector security, governance, compliance and quality standards.
  • Plan & Deliver: Participate in Agile ceremonies, contributing to sprint planning, prioritisation and successful delivery outcomes.

Required qualifications to be successful in this role

To succeed in this role, you should be an experienced Java engineer with a strong background in building cloud-native applications and delivering high-quality software within complex environments. You'll combine hands-on technical expertise with excellent problem-solving and collaboration skills, demonstrating the confidence to take ownership of engineering challenges, contribute new ideas and support colleagues in delivering successful outcomes.

Essential skills and experience:

  • Java & Spring Boot: Extensive hands-on experience developing enterprise applications using Java and Spring Boot.
  • AWS Cloud: Strong practical experience designing, developing and deploying cloud-native applications using AWS services.
  • Database Technologies: Proven experience with PostgreSQL, DynamoDB and database design and optimisation.
  • APIs & Microservices: Experience designing, developing and integrating RESTful APIs and microservices-based applications.
  • Software Engineering: Strong understanding of automated testing, code quality, secure coding and software development best practices.
  • Agile Delivery: Experience working within Agile environments, including Scrum or Kanban.
  • Public Sector Experience: Proven experience delivering solutions within public sector or similarly regulated environments.
  • Technical Leadership: Ability to mentor developers, contribute to technical decisions and promote engineering excellence.
  • Communication & Collaboration: Strong stakeholder engagement, analytical thinking and problem-solving skills.

Desirable skills and experience:

  • Experience with Docker and Kubernetes containerisation technologies.
  • Knowledge of Infrastructure as Code tools such as Terraform or AWS CloudFormation.
  • Familiarity with DevOps practices, CI/CD pipelines and automated deployment tooling.
  • Understanding of event-driven architectures and messaging technologies.

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.

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