Back End Developer (Kotlin / Java) - Outside IR35

We require a Senior Back End Developer to join a project to rebuild a long standing on-prem system as a cloud-native application on Azure. Stack Kotlin and Java 21 on Spring Boot. Kotlin preferred, strong Java engineers welcome if open to writing Kotlin. Azure PostgreSQL on the new side, SQL Server on the old, change data capture between them Managed message bus, event-driven throughout The role Most senior backend person on a small team. You decide how the services are shaped and what everyone builds to. You work out how each area moves across from the old system without anyone noticing. Day to day you''re alongside engineers who know the old system inside out. What you''ll need Proven capability with AI-assisted delivery. The vast majority of the code here is agent-written, so you need real experience of building this way and the seniority to direct it, review it properly and push back when it''s wrong Substantial backend experience Real depth on the JVM with Spring Boot - Kotlin ideal, but strong Java with appetite to work in Kotlin works. Domain-driven design and messaging patterns PostgreSQL Kafka, Service Bus or Pub/Sub Shipped to a public cloud, Azure ideally You''ll work remotely, with occasional trips to Glasgow. ..... full job details .....