Java Software Engineer

At Jacobs, we're challenging today to reinvent tomorrow by solving the world's most critical problems for thriving cities, resilient environments, mission-critical outcomes, operational advancement, scientific discovery and cutting-edge manufacturing, turning abstract ideas into realities that transform the world for good.

Your impact

Are you ready to design and deliver innovative software solutions that solve real-world challenges? At Jacobs, we’re growing our UK Digital & Data team and seeking experienced Java Software Engineers to join us. This is your opportunity to work on impactful projects across diverse sectors, including water, transportation, defence, and government, while collaborating with multidisciplinary teams to create scalable, high-performance back-end services.

As a Java Software Engineer,you’llapply object-oriented principles to build robust solutions,leveraging cloud technologies and modern development practices. This hands-on role offers the chance to take ownership of end-to-end solutions, engage directly with clients, and contribute to a culture of quality, learning, and continuous improvement.

• Design, implement, and deliver scalable back-end services and APIs using modern Java best practices.
• Optimise application performance through multi-threading and concurrency techniques.
• Collaborate with agile teams, including product owners, architects, and QA engineers, to deliver high-quality software.
• Utilise cloud platforms like Azure and AWS, and integrate data storage solutions for scalable service delivery.
• Participate in technical design discussions, code reviews, and agile ceremonies.

Here’s what you’ll need

• Solid, proven Java development expertise and experience with a strong understanding of Java (8+..11, 17, 21) features and object-oriented design principles.
• Expertise in multi-threading, concurrency, and performance optimisation.
• Experience with cloud platforms such as Azure and AWS, and automated testing frameworks like JUnit.
• Proven ability to deliver robust, scalable software solutions within agile teams.
• Strong problem-solving skills and a growth mindset, with enthusiasm for learning and knowledge sharing.

Experience with Spring Boot, Kubernetes, Python and SQL would be beneficial.

If you enjoy solving complex challenges and building scalable, high-performance software and back-end services, we’d love to hear from you. Join us at Jacobs, where we're solving complex challenges and building the digital future together.

This role is subject to UK Security Vetting at SC (security check) level. Applicants must be eligible and willing to undergo the appropriate security clearance process, if not already cleared. If you’re successful in your application, we’ll ask you to undergo the relevant vetting process to achieve SC clearance. You can find out more about vetting here . Any offer of employment will be conditional upon satisfactory completion of the relevant clearance process.

This is a full time, permanent, hybrid (2-3 days/week Jacobs/client office) role, with occasional business travel.

Full‑time employment at Jacobs is based on a 40‑hour working week. We place a strong emphasis on work‑life balance and flexibility, and flexi-time is available.

We offer an excellent and wide range of employee benefits including comprehensive Health Cover, Life Assurance, Income Protection, holiday buy/sell scheme, and a variety of wellbeing, family, parental and fertility support offerings, along with an enhanced contribution pension scheme.

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Joining Jacobs not only connects you locally but globally. Our values stand on a foundation of safety, integrity, inclusion and belonging. We put people at the heart of our business, and we truly believe that by supporting one another through our culture of caring, we all succeed. We value positive mental health and a sense of belonging for all employees.

With safety and flexibility always top of mind, we’ve gone beyond traditional ways of working so you have the support, means and space to maximize your potential. You’ll uncover flexible working arrangements, benefits, and…