Kotlin Full-Stack Engineer (Freelance/Service Agreement)

We are looking for a skilled Senior (Full-Stack) Kotlin Engineer as service agreement collaborator. Flix customers worldwide expect a comfortable and seamless experience at our stations as part of their travel experience. Our self-organized, cross-functional and distributed team builds products to enable Flix station managers to scale management of the station inventory, which a wide range of internal tech teams across Flix depend on, and overall serves to improve the experience at our stations for millions of passengers.

Scope of services

• Independent management of roadmap epics as topic driver, aligning technical requirements and solutions across the Flix teams together with the product owner


• Close interaction with business stakeholders on continuously developing and improving the product vision with business driven mindset


• Supporting the development process using an agile environment


• Pair and ensemble programming, code reviews, testing, and operations


• Delivery of new versions of the product, using continuous integration and delivery

Relevant experience

• 5+ years of software engineering experience, primarily backend development with a JVM language, including some commercial experience with Kotlin


• Solid front-end skills with modern front-end stack


• Experience with event-driven architectures; exposure to event sourcing, CQRS, and domain-driven design (DDD) is a plus


• Hands-on experience with automation and deployment of applications into cloud infrastructure (e.g., AWS, Azure) using CI/CD pipelines and DevOps best practices


• Proficiency in system design and architecture


• Solid written and spoken English communication skills