Senior Kotlin Full-Stack Engineer – Freelance/Contract
Summary
Senior Kotlin full-stack engineer building and scaling FlixBus’s station management platform with backend Kotlin/JVM and modern cloud/CI/CD practices.
FlixBus is seeking a Senior (Full-Stack) Kotlin Engineer to join as a freelance/service agreement collaborator in Warsaw. You will work on the Flix station management platform, collaborating across distributed teams to deliver scalable features.
The role requires strong backend Kotlin/JVM experience, solid frontend skills, and proficiency with modern cloud and CI/CD practices. English communication is essential for global collaboration.