Senior Full-Stack Kotlin Engineer Freelance/Service Agreement

Flix SE REMOTE 2026-08-12
  • 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

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.

    ,[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] Requirements: Kotlin, Java, AWS, event driven systems, Kafka, CI/CD, JavaScript, TypeScript, React, Compose HTML Tools: .