Job Vacancy Senior Java Developer

Widecombe-in-the-Moor

CGI

Job position Senior Java Developer

Permanent

As soon as possible

Widecombe-in-the-Moor, England, United Kingdom

Published on 27/10/2025

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At CGI, we’re shaping the future of digital transformation — empowering clients to unlock new possibilities through robust, scalable, and secure software solutions. As a Senior Java Developer, you’ll play a pivotal role in driving innovation and ensuring seamless integration across complex systems that power large-scale programmes. You’ll work within an open, collaborative culture where you can influence design decisions, mentor others, and see your ideas brought to life. This is an opportunity to contribute to mission-critical outcomes while being part of a team that values creativity, accountability, and continual learning.

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 either hold or be eligible for UK Security Clearance. This is a mainly remote position, with occasional travel as required.

Candidate profile

In this role, you will design, develop, and deliver high-quality Java solutions that form the backbone of critical client integration services. You’ll collaborate closely with clients, business analysts, and cross-functional teams to ensure robust design, security, and performance are embedded from the start. You will also mentor junior developers, contributing to a culture of technical excellence and continuous improvement.

You’ll take ownership of software components through the full lifecycle — from concept and coding through to testing, deployment and optimisation. Working within CGI’s collaborative environment, you’ll be empowered to innovate, challenge convention, and deliver impactful solutions that make a measurable difference.

Key responsibilities:

- Lead and Innovate: Design and implement scalable backend solutions using Java and modern middleware technologies

- Mentor and Support: Guide and develop junior team members through peer reviews, technical coaching and code quality initiatives

- Collaborate and Deliver: Work closely with clients, architects, and delivery teams to ensure requirements are clearly defined and achieved

- Develop and Optimise: Create clean, efficient, and secure code following best practices and coding standards

- Integrate and Enhance: Contribute to API development and integration strategies that strengthen business systems

- Assure and Improve: Conduct technical reviews, identify performance improvements, and ensure adherence to secure coding practices

- Own and Influence: Take responsibility for key design decisions and act as a trusted technical partner to clients

Required qualifications to be successful in this role

You should bring strong hands-on experience in Java development with a focus on backend or middleware systems, along with a solid understanding of software design principles, testing, and modern DevOps practices. The ideal candidate will combine technical depth with a collaborative mindset and the ability to guide others while delivering high-quality, maintainable solutions.

Essential qualifications:

- Proven experience as a Java Developer, ideally in backend or middleware environments

- Strong understanding of APIs, microservices, and functional programming principles

- Experience with AWS, Kubernetes and containerised development

- Proficiency with DevOps practices including CI/CD pipelines

- Demonstrated ability to produce clean, maintainable and secure code

- Strong communication skills with experience collaborating across technical and client-facing teams

- Experience mentoring or supporting less experienced developers

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Working environment

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.

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

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Senior Java Developer

CGI