> Markdown version of [/jobs/ext/3236428-java-kotlin-developer](https://www.wearedevelopers.com/jobs/ext/3236428-java-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).

---

# Java / Kotlin Developer

- **Company:** Spectrum IT Recruitment
- **Location:** Reading, UK
- **Salary:** £65,000.0 - £70,000.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Microsoft Azure, Java Virtual Machine (JVM), NoSQL, Payment Gateway, ReactJS, Backend, Kotlin, Docker, Service Stack
- **Published:** September 3, 2026
- **Apply:** https://find.jobs/jobs-near-me/apply/ats-redirect/?id=2953860694-2

## About the Role

If you're a Principal level Java or Kotlin Developer who wants to stay hands-on while having a genuine influence over architecture, technology and the engineers around you, this is a role worth exploring.This is an opportunity to take a leading technical role on a large, high-throughput platform within the telecommunications and online payments space.Java / Kotlin Software DeveloperRemote | Up to 70,000 | NewburyThe RoleThis is a hands-on Principal role, with around 90% of your work focused on backend development. You'll be working on a large platform with high-throughput APIs, Azure Cloud and an event-driven architecture.The business is growing and the volume of work is increasing, so they're looking for a Principal Software Developer to join a 16-person R&D development team, made up largely of senior engineers.The core technology stack includes:Java/Kotlin and Spring BootPostgreSQL and MongoDBMicroservices and event-driven architectureRabbitMQ, Docker and KubernetesAzure
CloudTypeScript, React and AngularYou'll remain close to the code while also helping shape technical direction, engineering standards and architecture. You'll mentor other engineers, evaluate new technologies and work closely with customers and stakeholders to turn requirements into robust technical solutions.What We're Looking ForYou'll need strong experience with:Java or Kotlin on JVM 11+Spring BootEnterprise backend developmentREST APIs and microservicesSQL and NoSQL databasesDocker/KubernetesGit and modern development practicesDesirable:Telecommunications billingAzureCI/CDLinuxRedisElasticsearch or additional programming languagesYou should also be comfortable operating at Principal level, making technical decisions, solving complex problems and helping other engineers develop.Working Arrangements & BenefitsThis is a remote-first role. The minimum expectation is around 2-3 visits per year to the Newbury office, although you're welcome to spend more time there if you prefer.The