Front-end Engineer - (Freelance/Service Agreement)

FlixBus
FlixBus

Software Engineering

Gdańsk, Poland

Posted on Aug 8, 2026

Front-end Engineer - (Freelance/Service Agreement)

City: Gdańsk
Department: IT & Engineering

Recruiter: Anna Symonenko

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We are looking for a skilled Front-end Engineer for service agreement collaboration. Our team is dedicated to automating and streamlining FlixTrain's operations - building internal tools that help manage the fleet more effectively, reduce manual processes, and increase productivity. This is a greenfield environment with plenty of room to shape new products from the ground up and explore innovative solutions for our internal users.

Scope of services

  • Independent development and delivery of high-quality frontend features within a self-organized, cross-functional distributed team
  • Building intuitive, responsive user interfaces with a focus on internal user experience
  • Driving frontend architecture decisions and contributing to technical quality across teams through code reviews and collaboration
  • Working with a modern tech stack: React, TypeScript, Vite with Module Federation, TanStack Router & Query, Zustand, Tailwind CSS, React Hook Form with Zod, Vitest, Storybook, React Testing Library, and Biome
  • Relevant expertise

Relevant expertise

  • Profound understanding of Typescript and its ecosystem (package managers, bundlers, linters, etc.)
  • Extensive knowledge of HTML and CSS
  • Hands-on experience with React.js
  • Experience writing tests and working with test runners such as Jest or Vitest, including UI/e2e testing
  • Solid written and spoken English skills
  • Experience working in an Agile setup

Collaboration model

  • Cooperation based on a service agreement with independent delivery of agreed services and invoicing