Senior Java Engineer

We’re looking for an experienced Senior Java Engineer to join the elementsuite team — someone who brings not only technical excellence but also the ability to influence, guide, and mentor within a high-performing engineering environment.

This is a hands-on senior role where you’ll take ownership of core parts of the elementsuite platform and its foundational services — mission-critical components that underpin our software stack. You’ll play a key role in setting technical direction, ensuring our solutions are clean, elegant, secure, and built for scale.

You’ll be primarily working with Java (with Rust where it adds value), building robust and scalable applications that serve some of the largest brands across the UK & Ireland. As part of a small, elite engineering team, you’ll have both the freedom and responsibility to shape the future of our platform — influencing architecture, engineering practices, and delivery standards.

elementsuite is rewriting the rulebook on how enterprise software is built. Our cloud-native platform powers flexible, scalable, and beautifully simple HR and workforce management solutions. At the start of this year, elementsuite and Zellis joined forces to create an AI-enabled, end-to-end HR, WFM and Pay solution. We already support some of the biggest brands in the UK & Ireland, combining deep HR domain expertise with next-generation technology. Together, we’re transforming the future of HR and Payroll technology, where artificial intelligence meets human expertise to reimagine the world of work: intuitive, connected and AI-enabled. Our all-in-one solution is designed to power exceptional employee experiences and help our customers thrive.

• Deliver best-in-class Java platform code, developing software in an iterative cycle with a focus on architecture and design throughout the process
• Strong understanding of creating robust, scalable applications, using industry-standard source code control within a small team
• Automated testing.
• Develop and test across multiple browsers, platforms, and devices, including smartphones and tablets where applicable
• Demonstrate ability to learn new technologies quickly

• Maintain and enhance the platform software as a reliable and secure foundation for our current and future application(s).
• Enhance the performance of the platform software as required to meet agreed service level objectives.
• Create, maintain and enhance foundational software tools for internal users (e.g. des).
• Maintain and enhance customer-facing platform services such as authentication services (e.g. single-sign on).
• Write and maintain performant code interacting with Postgres, using extensive SQL skills and database knowledge.
• Provide hands-on architectural guidance and practical assistance to project teams and our development team, regarding our core product and customisations/configuration of that product, especially in the areas of interfaces, security and performance.
• Seek innovative technical solutions to key business problems and opportunities.
•  Continued learning relevant to the role, including programming skills and industry trends

At Zellis we create AI-enabled HR, workforce management and payroll products and services, to power exceptional employee experiences so that you and your people do better. Our multi-award-winning products pay over five million employees a year, with almost half (42%) of the FTSE 100, 50% of the top retailers and 30% of the top universities in the UK & Ireland as customers, making us the largest provider of Payroll and HR software and managed services.

Our vision is to be the clear leader in pay, reward, analytics, and people experiences. We're passionate about creating an environment where people want to join, belong to, and be part of a progressive organisation. Our values, which were defined with input from all of our 3,000 colleagues, we live and breathe every day:

• Unstoppable together.
• Always learning.
• Make it count.
• Think scale.

Our people are critical to our ongoing success; we’re proud of our inclusive culture that gives you the platform to grow, challenge the status quo and play a crucial role in further enhancing our market position as the leading provider of HR & Payroll software and services. With Zellis you’ll have the chance to stretch and challenge yourself in an environment that’s varied, flexible and hugely supportive.

We also love to reward and recognise our brilliant colleagues. As part of your benefits package, you’ll receive:

• A competitive base salary.
• 25 days annual leave, plus your birthday off and the opportunity to buy additional holiday.
• Private medical insurance.
• Life assurance 4x salary.
• Enhanced pension scheme with company contributions up to 8.5%.
• A huge range of additional flexible benefits across financial & personal wellbeing, lifestyle & leisure.