You will independently design, develop and deliver reliable backend services within a self-organized, cross-functional, distributed team. This includes building robust APIs and event-driven integrations for our internal tools, with a strong focus on internal user needs. You will also help drive backend architecture decisions and contribute to technical quality across teams through code reviews and close collaboration.
Our backend stack:
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Java with Spring Boot
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AWS
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Kafka
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Kubernetes
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Terraform for IaC
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GraphQL
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PostgreSQL
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GitLab CI
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Design, build and maintain backend services and APIs that automate and simplify FlixTrain Network Planning workflows
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Develop and evolve data models and integrations, including asynchronous, event-driven communication between services
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Work with internal users, product and other engineers to understand their needs and turn them into practical technical solutions
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Write and maintain automated tests to ensure the reliability and maintainability of the services you deliver
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Collaborate with other engineers across a distributed architecture within an Agile environment
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Document technical decisions, solutions and ways of working
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You have 3 to 5 years of experience building backend applications, from which a couple of years building backend applications in Java or another JVM language such as Kotlin
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You have worked in cloud environments (ideally AWS)
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You have practical experience with at least one of the following:
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Building and running on AWS
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Designing, building and maintaining event-driven systems with Kafka
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Deploying and operating workloads on Kubernetes
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Managing infrastructure as code, ideally with Terraform
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You write automated tests as a natural part of your development process and care about code quality and maintainability
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Understanding of event-driven systems and how to work with them
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Solid written and spoken English skills
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Experience working in an Agile setup
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Curiosity about the business domain. Interest in transportation, logistics or similarly complex domains is a good signal, as is the ability to explain such a domain clearly
Nice to have
- Experience building services with Spring Boot
- Experience working with databases, relational and/or NoSQL
- Experience with CI/CD pipelines (GitLab CI or GitHub Actions)
- A DevOps mindset: you are willing to own pipelines, infrastructure and quality, not just the application code
- Experience with agentic or AI-assisted coding
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