> Markdown version of [/jobs/ext/2791062-senior-kotlin-developer](https://www.wearedevelopers.com/jobs/ext/2791062-senior-kotlin-developer). 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 Kotlin Developer - **Company:** Salt Search Ltd. - **Location:** Greater London, UK - **Experience:** Expert - **Contract:** Temporary contract - **Skills:** Clean Code Principles, Cloud Computing, Software Quality, Computer Programming, Continuous Integration, Key Management, Systems Development Life Cycle, Data Logging, Test-Driven Development (TDD), System Availability, Reliability of Systems, Backend, Kotlin, Event Driven Architecture, Extreme Programming - **Published:** September 8, 2026 - **Apply:** https://www.collegerecruiter.com/job/2840622962-senior-kotlin-developer ## About the Role This is a hands-on engineering role with a strong emphasis on Extreme Programming (XP) practices, including mob programming, test-driven development, and continuous refactoring. Engineers are expected to contribute across development, integration, and production support, collaborating closely to maintain high standards of code quality, system reliability, and performance. * Strong commercial experience building backend services using Kotlin * Experience with event-sourced and event-driven architectures * Deep familiarity with XP practices, including: * Mob programming as a primary way of working * Continuous refactoring and clean code principles * Cloud experience with GCP, including: * GKE and/or Cloud Run * Cloud SQL and Memory store * Artifact Registry and Cloud Logging * Key Management * Experience with CI/CD and SDLC in regulated or enterprise environments * Comfortable working on production systems requiring high availability and accuracy ## 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) - [Crypto-secure Data Management with In-Database Blockchain](https://www.wearedevelopers.com/videos/632-crypto-secure-data-management-with-in-database-blockchain) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Build Delightful Mobile Experiences with Kotlin, Realm, and Atlas Device Sync](https://www.wearedevelopers.com/videos/694-build-delightful-mobile-experiences-with-kotlin-realm-and-atlas-device-sync) - [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) ## Related Articles - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Frontend Developer Salary in The UK](https://www.wearedevelopers.com/magazine/233-frontend-developer-salary-in-the-uk) - [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) - [Fullstack Developer Salary UK](https://www.wearedevelopers.com/magazine/251-fullstack-developer-salary-uk)