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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Kotlin Developer - **Company:** Xcelyst Limited - **Location:** London, UK - **Experience:** Expert - **Salary:** £120,000.0 - £160,000.0 - **Contract:** Temporary contract - **Skills:** Clean Code Principles, Agile Methodology, Automation of Tests, Cloud Computing, Code Review, Continuous Integration, Distributed Systems, Monitoring of Systems, Key Management, Enterprise Messaging Systems, Object-Oriented Software Development, Systems Development Life Cycle, Software Engineering, SQL Databases, Data Streaming, Data Logging, Google Cloud, Test-Driven Development (TDD), Spring Cloud, System Availability, Caching, Backend, Kotlin, Event Driven Architecture, Kubernetes, Infrastructure Automation Frameworks, Extreme Programming, Code Restructuring, Microservices - **Published:** June 20, 2026 - **Apply:** https://uk.indeed.com/viewjob?jk=7b13c861e2583fe2 ## About the Role Do you have experience in SQL?, * Strong commercial experience developing backend applications using Kotlin * Solid understanding of object-oriented design and software engineering principles * Experience building distributed systems, microservices, and event-driven architectures * Hands-on experience with cloud platforms, preferably Google Cloud Platform (GCP) * Experience with: * Kubernetes (GKE) and/or Cloud Run * Cloud SQL * Caching technologies * Logging and monitoring tools * Secure key and secrets management * Strong understanding of CI/CD pipelines and modern SDLC practices * Experience working in enterprise or regulated environments * Comfortable supporting production systems with high availability requirements Preferred Skills * Experience within Capital Markets, Investment Banking, Trading, or Financial Services environments * Exposure to Agile, Extreme Programming (XP), Test-Driven Development (TDD), and continuous refactoring practices * Experience with infrastructure automation and cloud-native deployment models * Knowledge of event streaming and messaging platforms What We're Looking For * Strong problem-solving and analytical skills * Passion for building high-quality software * Collaborative mindset and excellent communication skills * Ability to thrive in fast-paced, business-critical environments * Commitment to continuous learning and engineering excellence ## Description We are looking for experienced Senior Kotlin Engineers to join a high-performing engineering team building a next-generation cloud-native platform within the Capital Markets domain. This platform supports critical front-office business processes and is used by global users operating in a fast-paced, real-time environment. You will work closely with product, engineering, and platform teams to design, build, and support highly scalable backend services while contributing to a strong engineering culture focused on quality, collaboration, and continuous improvement. Key Responsibilities * Design, develop, and maintain backend services using Kotlin * Build scalable, resilient, and high-performance cloud-native applications * Collaborate with cross-functional teams to deliver business-critical features * Participate in architecture discussions and technical design decisions * Follow engineering best practices including automated testing, code reviews, and continuous integration * Support production systems and contribute to platform reliability and operational excellence * Drive continuous improvement through refactoring, clean code principles, and technical innovation * Work in highly collaborative engineering environments with shared ownership of solutions ## Related Videos - [Moving from Java to Kotlin](https://www.wearedevelopers.com/videos/384-moving-from-java-to-kotlin) - [Kotlin Multiplatform - True power of native code reuse](https://www.wearedevelopers.com/videos/4-kotlin-multiplatform-true-power-of-native-code-reuse) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [HTTP headers that make your website go faster](https://www.wearedevelopers.com/videos/1676-http-headers-that-make-your-website-go-faster) - [Why Kotlin is the better Java and how you can start using it](https://www.wearedevelopers.com/videos/661-why-kotlin-is-the-better-java-and-how-you-can-start-using-it) - [Tackling Complexity With Functional Programming And Kotlin](https://www.wearedevelopers.com/videos/705-tackling-complexity-with-functional-programming-and-kotlin) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Fullstack Developer Salary UK](https://www.wearedevelopers.com/magazine/251-fullstack-developer-salary-uk) - [Best Companies to work for in London: Top 25 Companies in 2023](https://www.wearedevelopers.com/magazine/187-best-companies-to-work-for-in-london-top-25-companies-in-2023) - [The Biggest German Tech Companies](https://www.wearedevelopers.com/magazine/424-the-biggest-german-tech-companies) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again)