Flix

Java Software Engineer - FinTech

Flix
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23 hours ago
Warsaw, PolandMid Level

Responsibilities

  • Design, build, and maintain internal data-heavy applications supporting automated bus-partner settlement generation across FlixBus entities.
  • Develop internal services for managing settlement-relevant partner data and tracking changes through event history.
  • Implement and maintain Kafka-based event-driven data-processing workflows for settlement operations.
  • Collaborate directly with finance, billing, business, and partner teams to understand needs and shape solutions.
  • Participate in product development from refinement and technical design through delivery and operations.
  • Contribute to infrastructure-as-code, CI/CD pipelines, cloud deployment, containerized services, monitoring, and observability.

Requirements

  • At least 3 years of experience as a Software Engineer, including exposure to data-processing systems.
  • Proven commercial experience with Java.
  • Experience with event-driven architectures, ideally Kafka.
  • Experience with cloud infrastructure providers, ideally AWS.
  • Solid SQL knowledge.
  • Hands-on experience with Docker, Kubernetes or similar container orchestration tools, and CI/CD.
  • Familiarity with Snowflake or similar data-warehousing solutions is preferred.
  • Experience with JavaScript, HTML5, React.js, or Angular is preferred.
  • Fluent English communication skills.

Benefits

  • B2B/freelance service-agreement engagement rather than an employment contract.
  • Independent-contractor arrangement with responsibility for delivering agreed services and submitting invoices.
  • Open to contractors based in Poland.
  • Rate of 89–119 per hour.

Categories

Flix

About Flix

1,001-5,000 employees

Flix builds a travel-tech platform and consumer apps that sell intercity bus and rail tickets under FlixBus, FlixTrain, Greyhound, and Kamil Koç. It uses an asset-light model, partnering with local operators while handling network planning, pricing, and marketing to connect travelers in 40+ countries. Founded in 2011 and headquartered in Munich, it offers a unified booking experience across Europe, the U.S., and Turkey.

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