FlixMobility

Intercity bus and rail travel platform

Java Software Engineer - Fintech

Backend EngineeringConfirmed live in the last 24 hours

Full-timePoland$89 - $119 /hr

About the Job

Requirements

At least 3 years of experience as a Software Engineer, with exposure to data processing systems.
Proven experience working with Java in a commercial environment.
Experience with event-driven architectures.
Experience working with cloud-based infrastructure providers.
Solid SQL knowledge.
Hands-on experience with Docker and Kubernetes, or similar container orchestration tools, and CI/CD.
Fluency in English.

Responsibilities

Design, build, and maintain features for internal data-heavy applications, supporting automated bus partner settlement generation across FlixBus entities around the globe.
Develop and enhance internal services that allow finance and billing teams to manage bus partners' settlement-relevant data and track changes via event history.
Communicate directly with business counterparts in finance, billing, and partner teams to understand needs and shape solutions.
Participate in product development from refinement and technical design through delivery and operations.
Implement and maintain event-driven data processing workflows using Kafka to support settlement operations.
Contribute to infrastructure-as-code practices and CI/CD pipelines on AWS, and run services on Docker and Kubernetes with monitoring and observability tools such as Datadog.

Desired Qualifications

Experience with Kafka is preferred.
Experience with AWS is preferred.
Familiarity with Snowflake or similar data warehousing solutions.
Experience with front-end technologies such as JavaScript, HTML5, React.js, or Angular.

Rate: 89 – 119 / hour (B2B)

We are looking for a skilled Java Engineer to join Flix on a freelance/service agreement basis (B2B contract). This is a contractor engagement to work on impactful, hands-on challenges in the domain of financial technology.

Scope of Services

Bring expertise in Java-based backend development. Work across Flix's finance technology environment to build and maintain critical internal applications — from revenue accounting, invoices processing to bus partner settlements and payment reconciliation.

About the Engagement

Design, build, and maintain features for the internal data-heavy applications, supporting automated bus partner settlement generation across all FlixBus entities around the globe.
Develop and enhance the internal services that allow finance and billing teams to manage bus partners' settlement-relevant data and track changes via event history.
Communicate directly with business counterparts (finance, billing, and partner teams) to understand needs and shape solutions.
Actively participate in product development, from refinement and technical design through delivery and operations.
Implement and maintain event-driven data processing workflows using Kafka to support settlement operations.
Contribute to infrastructure-as-code practices and CI/CD pipelines on AWS, and run services on Docker/Kubernetes, with monitoring and observability (e.g. Datadog).

About You

At least 3 years of experience as a Software Engineer, with exposure to data processing systems
Proven experience working with Java in a commercial environment
Experience with event-driven architectures, ideally Kafka
Experience working with cloud-based infrastructure providers, ideally AWS
Solid SQL knowledge
Hands-on experience with Docker and Kubernetes (or similar container orchestration tools) and CI/CD
Familiarity with Snowflake or similar data warehousing solutions is a plus
Experience in front-end technologies (e.g., JavaScript, HTML5, React.js, or Angular) is a plus
Fluent in English

Cooperation model

Cooperation based on a service agreement (B2B/freelance contract), not an employment contract.
You will operate as an independent contractor, responsible for delivering agreed services and submitting invoices
Location: open for contractors based in Poland

About the Company

FlixMobility

Intercity bus and rail travel platform

FlixMobility, now operating under the corporate brand Flix, is a travel technology company connecting passengers with intercity bus and rail services. Through brands including FlixBus and FlixTrain, it manages route planning, pricing, ticketing, marketing and the digital customer experience while transportation partners operate many vehicles. The platform serves travelers across Europe, North America and other markets. Its model combines software, network planning and partner operations to make long-distance ground travel bookable through a unified consumer service.

Company size: Not listed
Company stage: Not listed
Total funding: Not listed
Headquarters: Not listed
Founded: Not listed

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