Front-end Engineer - Freelance/Service Agreement - Poland-based

Open to B2B contractors based in Poland.

Rate: 89—119 PLN/hour.

We are looking for a skilled Front-end Engineer for service agreement collaboration to cooperate with a team 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

• 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