Kotlin/Java Developer in Sheffield

We are looking for a Backend Software Engineer with strong experience in Kotlin and/or Java, who thrives in designing and building scalable, cloud‑native microservices and APIs. In this role, you will work within a Developer Experience (DevX) function, building platforms, frameworks, and tooling that enable engineering teams to develop, deploy, and operate applications efficiently and consistently. Collaboration is central to the role—you will work closely with developers, product owners, and stakeholders, contribute to architectural discussions, participate in code reviews, and help drive continuous improvement across engineering practices.

Hybrid working: The places that you work from day to day will vary according to your role, your needs, and those of the business; it will be a blend of Company offices, client sites, and your home; noting that you will be unable to work at home 100% of the time.

Your Role:

• Perform hands‑on backend development using Kotlin and Java, with flexibility to work across both languages where required.
• Design, develop, and maintain high‑performance REST APIs and microservices using the Spring Framework.
• Build scalable, secure, and cloud‑native services that support multiple consuming applications.
• Contribute to microservice‑based, API‑driven architectures, following industry best practices.
• Participate in architectural discussions, influencing technology choices and design decisions.
• Write clean, well‑tested, maintainable code, adhering to agreed coding standards.
• Collaborate with engineering teams to continuously improve development processes.
• Support and contribute to DevOps practices, including CI/CD pipelines and automation.
• Participate in peer code reviews, knowledge‑sharing initiatives, and Agile ceremonies.
• Work effectively with both technical and non‑technical stakeholders to deliver business value.

Your Skills:

• Strong experience in Kotlin or Java, with the ability and willingness to work across both.
• Proven experience developing RESTful APIs using frameworks such as Spring / Spring Boot.
• Solid understanding of microservices architectures and API‑driven design.
• Experience working with AWS or other cloud platforms, including cloud‑native services.
• Understanding of DevOps principles, CI/CD pipelines, and modern delivery practices.
• Experience working in Agile delivery environments (Scrum/Kanban).
• Strong analytical, problem‑solving, and troubleshooting skills.
• Good communication skills and the ability to collaborate effectively across teams.
• Experience with test automation frameworks.
• Familiarity with Jenkins pipelines.
• Exposure to event‑driven architectures.

We are a Disability Confident Employer: Capgemini is proud to be a Disability Confident Employer (Level 2) under the UK Government’s Disability Confident scheme. As part of our commitment to inclusive recruitment, we will offer an interview to all candidates who declare they have a disability and meet the minimum essential criteria for the role. Please opt in during the application process.

Make It Real (what does it mean for you): You’d be joining an accredited Great Place to work for Wellbeing in 2024. Employee wellbeing is vitally important to us as an organisation. We see a healthy and happy workforce as a critical component for us to achieve our organisational ambitions. To help support wellbeing we have trained ‘Mental Health Champions’ across each of our business areas, and we have invested in wellbeing apps such as Thrive and Peppy. You will be empowered to explore, innovate, and progress. You will benefit from Capgemini’s ‘learning for life’ mindset, meaning you will have countless training and development opportunities from thinktanks to hackathons, and access to 250,000 courses with numerous external certifications from AWS, Microsoft, Harvard ManageMentor, Cybersecurity qualifications and much more. You will be joining one of the World’s Most Ethical Companies®, as recognised by Ethisphere® for 13 consecutive years. We live our values by making ethical business choices every day. Working ethically is at the centre of our culture at Capgemini, meaning you will be helping to create a future we can all be proud of.

Why you should consider Capgemini: Growing clients’ businesses while building a more sustainable, more inclusive future is a tough ask. When you join Capgemini, you’ll join a thriving company and become part of a collective of free-thinkers, entrepreneurs and industry experts. We find new ways technology can help us reimagine what’s possible. It’s why, together, we seek out opportunities that will transform the world’s leading businesses, and it’s how you’ll gain the experiences and connections you need to shape your future. By learning from each other every day, sharing knowledge, and always pushing yourself to do better, you’ll build the skills you want. You’ll use your skills to help our clients leverage technology to innovate and grow their business. So, it might not always be easy, but making the world a better place rarely is.

About Capgemini: Capgemini is an AI-powered global business and technology transformation partner, delivering tangible business value. We imagine the future of organisations and make it real with AI, technology and people. With our strong heritage of nearly 60 years, we are a responsible and diverse group of 420,000 team members in more than 50 countries. We deliver end-to-end services and solutions with our deep industry expertise and strong partner ecosystem, leveraging our capabilities across strategy, technology, design, engineering and business operations. The Group reported 2024 global revenues of €22.1 billion.