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# Kotlin Backend Engineer

- **Company:** Flix
- **Location:** München, Germany
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, Agile Methodology, Artificial Intelligence, Amazon Web Services, Architectural Patterns, Mobile Application Development, Cloud Computing, Code Review, Databases, Relational Databases, Distributed Systems, Java Virtual Machine (JVM), PostgreSQL, MySQL, Software Product Management, Standard Sql, Systems Integration, Datadog, Large Language Models, Spring-boot, Backend, Kotlin, Gitlab-ci, Kubernetes, Apache Kafka, Restful APIs, Terraform
- **Published:** September 2, 2026
- **Apply:** https://startup.jobs/senior-kotlin-engineer-m-f-d-b2b-sales-distribution-team-flix-9856640

## About the Role

* 5+ years of professional backend development experience with JVM languages with at least 2 years of commercial experience with Kotlin
 * Hands-on experience with Spring Boot
 * Experience building and maintaining REST APIs and distributed systems
 * Solid SQL knowledge and relational database design, including MySQL and PostgreSQL
 * Sound software engineering fundamentals, clean code practices, and familiarity with ORM and persistence layers
 * Collaborative and pragmatic, comfortable working in cross-functional Agile teams
 * Preferred: AWS, Kubernetes, GitLab CI/CD, Kafka, Terraform, LLM integrations, RAG systems, AI product development, or legacy system migration experience

## Description

* Design and develop backend services in Kotlin and Spring Boot
 * Build and maintain REST APIs used by internal and external partners
 * Participate in architectural decisions and technical modernization initiatives
 * Improve observability, performance, and reliability of backend systems using DataDog
 * Contribute to CI/CD pipelines and cloud infrastructure on AWS and Kubernetes
 * Work in and contribute to an AI-native development environment - including AI-integrated code review automation and an internal Claude Code plugin marketplace covering engineering standards: Kotlin/Spring Boot conventions, architectural patterns, testing practices, database guidelines, and team-specific conventions.


## Related Videos

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- [Kotlin Multiplatform - True power of native code reuse](https://www.wearedevelopers.com/videos/4-kotlin-multiplatform-true-power-of-native-code-reuse)
- [Back(end) to the Future: Embracing the continuous Evolution of Infrastructure and Code](https://www.wearedevelopers.com/videos/440-back-end-to-the-future-embracing-the-continuous-evolution-of-infrastructure-and-code)
- [MySQL Protocol Features You Should Be Aware Of](https://www.wearedevelopers.com/videos/100267-mysql-protocol-features-you-should-be-aware-of)
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