Senior Fullstack Typescript Engineer


Date listed

1 month ago

Employment Type




You will join the 11Sigma crew at Stoplight (our partner) and will be working with the core platform team on creating complex, high-performing API Design web applications using the latest technology stack and best practices. You’ll work hand to hand with some of the greatest engineers in the API space.

The product you will work on helps hundreds of companies (like, Amadeus, EA) adopting the Design-First approach to building, exploring, and governing APIs. 

Besides the Stoplight Platform, our engineers work on OpenSource projects such as the API linting tool Spectral, and the API mocking tool Prism

Those tools are becoming de-facto standards in the API development world. OpenSource tools we build are presented by independent developers at the largest and most influential API conferences.

This job requires familiarity with both stacks (frontend and backend) with more emphasis on the backend.

Personal Qualities

  • Internally motivated
  • Driven / passionate
  • Curious / problem solver
  • Self-reliant
  • Great people skills
  • Takes ownership
  • Open-minded
  • Self-starter
  • Desire to give back
  • “Build together” attitude

Skills & Experience


  • Advanced TypeScript and JavaScript
  • NodeJS, React
  • Rest API / GraphQL (advanced)
  • Advanced PostgreSQL (or other DBMS)
  • Outstanding English

Nice to have

  • OpenAPI
  • Overmind
  • OAuth
  • Functional Programming
  • Hasura GraphQL Engine

Bonus points for

  • Conference talks experience
  • Blog author
  • Portfolio on GitHub
  • OpenSource contributions
  • Prior fast-growth startup experience

Key Responsibilities

  • Design and build efficient, scalable, well tested, and easy-to-use software to help developers design high-quality APIs
  • Use and contribute to cutting-edge open source technologies
  • Drive consistent style, look & feel, and experiences that help improve our products
  • Set goals and implement them
  • Analyze and solve hands-on, deeply technical challenges

Salary & Perks

20000 - 24000 PLN + VAT (B2B, per month, billed hourly)

Perks include:

  • Explorer budget (annual budget for travel and adventure)
  • 10x-self budget (annual budget for home-office equipment, learning)
  • Epic retreats around the world
  • Dedicated self-growth mentor
  • Conferences around Europe
  • 100% remote company - live and work wherever you wish
  • Paid “readiness to service hours” include all public polish holidays plus an extra 15 days

Feel free to read more about our company at

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