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Principal Java/Kotlin Software Engineer

Spectrum It Recruitment — United Kingdom · Posted ~8 hours ago

Lead Remote

Skills

Java Kotlin Spring Boot Backend development Software architecture Microservices Event-driven architecture REST APIs Azure PostgreSQL MongoDB RabbitMQ Docker Kubernetes

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Summary ✨ AI‑Generated

Take a hands-on Principal Software Engineer role with significant influence over architecture, technology choices, and engineering practices. Around 90% of the work is backend-focused, involving high-throughput APIs, Azure Cloud, microservices, and event-driven architecture. The core stack includes Java or Kotlin, Spring Boot, PostgreSQL, and MongoDB, with containerization and messaging technologies also part of the environment. You will work alongside a team of experienced engineers.

Highlights

Fully remote principal-level role with substantial influence over architecture and technology while remaining hands-on, focused on high-throughput backend systems and modern cloud-native engineering.

Description

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 Developer Remote | Up to £70,000 | Newbury The Role This 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 Angular You'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 For You'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 practices Desirable: Telecommunications billingAzureCI/CDLinuxRedisElasticsearch or additional programming languages You should also be comfortable operating at Principal level, making technical decisions, solving complex problems and helping other engineers develop. Working Arrangements & Benefits This 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 business also runs monthly and quarterly all-hands events, including summer and Christmas gatherings. 24 days' holiday plus your birthday offPrivate medicalLife assuranceCritical illness coverEmployee assistance programmeContributory pension Apply now or contact Chris Lynes at Spectrum IT Recruitment to find out more.