Job Description
Position Description
The Space, Defence and Intelligence business unit in CGI is a true IT Systems Integrator. We work, build, and operate bespoke, technically complex, mission-critical systems which help our clients keep us all safe and secure. We bring innovation to our clients using proven and emerging technologies, agile delivery processes and our deep expertise across the breadth of space, defence, intelligence, aerospace and maritime, all underpinned by our end-to-end cyber capability. We work collaboratively with global technology companies, cutting edge SMEs and academia to deliver the optimal solution for each client.
CGI was recognised in the Sunday Times Best Places to Work List 2026 and has been named one of the ‘World’s Best Employers’ by Forbes magazine. 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 position will be a hybrid position, working out of our site in Leatherhead.
CGI’s Secure Space Systems business is at the forefront of innovative engineering, tackling some of the most interesting challenges in Space Situational Awareness, Space Domain Awareness, and Command & Control. We work on cutting-edge projects that often start as prototypes and evolve into full-scale, agile projects (using Scrum, SAFe, and DevSecOps) that process complex scientific and engineering data in a secure, high-performance manner.
Your future duties and responsibilities
We are seeking a self-motivated and experienced Java Software Engineer with a passion for building robust microservices. This role offers you the chance to contribute to a rapidly expanding business area, where you will have the opportunity to work on projects that truly make a difference in the field of space systems.
Key Responsibilities
• Develop and automate testing for Java microservices.
• Build and maintain RESTful APIs utilizing OpenAPI and JSON.
• Collaborate within agile teams, adapting to rapidly changing requirements.
• Work in an environment that values pragmatic, delivery-focused problem solving and continuous learning.
Required Qualifications To Be Successful In This Role
• Java Microservices Development: Proven experience in building and testing Java microservices.
• RESTful API Development: Recent hands-on experience with developing APIs using OpenAPI and JSON.
• Teamwork & Communication: Strong team working and communication skills; the ability to adapt to evolving project requirements.
Highly Desirable
• Spring/Spring Boot: Experience in developing applications using Spring/Spring Boot.
• Database & JPA: Experience with PostgreSQL and the Java Persistence API.
Additional Desirable Skills
• Workflow Automation: Familiarity with NiFi or similar technologies.
• Orchestration: Experience with Temporal or similar orchestration tools.
• Messaging & Streaming: Exposure to RabbitMQ or similar message/streaming broker technologies.
• Advanced Technologies: Interest or experience in big data technologies (e.g., HBase, Hadoop), machine learning frameworks (e.g., Spark), and orbit dynamics.
Why Join Us?
• Innovative Environment: Be part of projects at the cutting edge of space systems and security.
• Agile Culture: Work within agile frameworks that promote continuous learning and adaptation.
• Career Growth: Expand your skills in a rapidly expanding business area with complex and interesting challenges.
• Collaborative Team: Work with a dynamic and skilled team committed to excellence and innovation.
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.
The Space, Defence and Intelligence business unit in CGI is a true IT Systems Integrator. We work, build, and operate bespoke, technically complex, mission-critical systems which help our clients keep us all safe and secure. We bring innovation to our clients using proven and emerging technologies, agile delivery processes and our deep expertise across the breadth of space, defence, intelligence, aerospace and maritime, all underpinned by our end-to-end cyber capability. We work collaboratively with global technology companies, cutting edge SMEs and academia to deliver the optimal solution for each client.
CGI was recognised in the Sunday Times Best Places to Work List 2026 and has been named one of the ‘World’s Best Employers’ by Forbes magazine. 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 position will be a hybrid position, working out of our site in Leatherhead.
CGI’s Secure Space Systems business is at the forefront of innovative engineering, tackling some of the most interesting challenges in Space Situational Awareness, Space Domain Awareness, and Command & Control. We work on cutting-edge projects that often start as prototypes and evolve into full-scale, agile projects (using Scrum, SAFe, and DevSecOps) that process complex scientific and engineering data in a secure, high-performance manner.
Your future duties and responsibilities
We are seeking a self-motivated and experienced Java Software Engineer with a passion for building robust microservices. This role offers you the chance to contribute to a rapidly expanding business area, where you will have the opportunity to work on projects that truly make a difference in the field of space systems.
Key Responsibilities
• Develop and automate testing for Java microservices.
• Build and maintain RESTful APIs utilizing OpenAPI and JSON.
• Collaborate within agile teams, adapting to rapidly changing requirements.
• Work in an environment that values pragmatic, delivery-focused problem solving and continuous learning.
Required Qualifications To Be Successful In This Role
• Java Microservices Development: Proven experience in building and testing Java microservices.
• RESTful API Development: Recent hands-on experience with developing APIs using OpenAPI and JSON.
• Teamwork & Communication: Strong team working and communication skills; the ability to adapt to evolving project requirements.
Highly Desirable
• Spring/Spring Boot: Experience in developing applications using Spring/Spring Boot.
• Database & JPA: Experience with PostgreSQL and the Java Persistence API.
Additional Desirable Skills
• Workflow Automation: Familiarity with NiFi or similar technologies.
• Orchestration: Experience with Temporal or similar orchestration tools.
• Messaging & Streaming: Exposure to RabbitMQ or similar message/streaming broker technologies.
• Advanced Technologies: Interest or experience in big data technologies (e.g., HBase, Hadoop), machine learning frameworks (e.g., Spark), and orbit dynamics.
Why Join Us?
• Innovative Environment: Be part of projects at the cutting edge of space systems and security.
• Agile Culture: Work within agile frameworks that promote continuous learning and adaptation.
• Career Growth: Expand your skills in a rapidly expanding business area with complex and interesting challenges.
• Collaborative Team: Work with a dynamic and skilled team committed to excellence and innovation.
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.
💡 Quick Summary
Seeking a career-building opportunity? The Java Developer position is now open for candidates interested in the Software Developer Jobs sector. This role in Leatherhead offers a professional environment and growth potential.
Requirement Snapshot: Candidates should possess basic communication skills, a proactive attitude, and the ability to work in a team. Experience in Software Developer Jobs is a plus.