> Markdown version of [/jobs/ext/4652760-senior-java-kotlin-software-engineer](https://www.wearedevelopers.com/jobs/ext/4652760-senior-java-kotlin-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Java/Kotlin Software Engineer - **Company:** Zopa Bank Limited - **Location:** London, UK - **Experience:** Expert - **Salary:** £75,759 - **Contract:** Permanent contract - **Skills:** Clean Code Principles, Java (Programming Language), Amazon Web Services, Distributed Systems, Software Architecture, Backend, Kotlin, Software Coding - **Published:** November 10, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5959223561 ## About the Role * Strong backend engineering experience using Kotlin or Java in a production environment * Passionate about building reliable, high-quality products - not just writing code * Comfortable working on distributed systems with scale and complexity * Advocates for testing, clean code, and automation throughout the development process * Understands trade-offs in product delivery and values pragmatism * Enjoys solving problems collaboratively and mentoring others * Clear communicator with experience working cross-functionally * Excited by fast-moving environments and full ownership of your work Our Engineering Culture * Customer impact over unnecessary complexity * Team success over individual heroics * Operational ownership, not just feature delivery * Continuous improvement through honest feedback Added Bonus * Experience with fintech or banking is a plus, but we value problem-solvers from all backgrounds ## Description Our Software Engineers dont just write code, they solve real financial problems for millions of customers. Youll work on distributed systems processing thousands of transactions daily, build resilient services that handle peoples money, and create experiences that make traditionally complex financial products feel simple. Your Impact * Designing, building and running scalable backend systems using Kotlin and AWS * Contributing to technical direction, team practices and architectural decisions * Collaborating closely with product managers, designers and other engineers * Mentoring junior engineers and helping to raise the technical bar * Owning your team's code, quality and delivery