Front-End (React) Developer

Fully remote, Poland

We are SIENN Living Online Technology! Let’s grow with us!
Do you want to become a part of something new? We are looking for software enthusiasts, who are open to new challenges and new technologies.
If you want to work in an international team and have fun – join us!


A project for a large Client from the Netherlands, specializing in audits, accounting, payroll, HR and tax consultancy. The project aims to support the development of the existing accounting application.

The project uses cloud technologies and the CI / CD approach.

Technology Stack:

  • React 18
  • Typescript
  • Entity Framework
  • Git

What we offer?

  • B2B: 15 200 – 25.400 PLN/month net (includes 26 days of paid days off)
  • Work in an international environment
  • Fully remote work (it is also possible to work from the office in Wrocław or in hybrid mode)
  • Work in SIENN teams (not outsourced)
  • International training and certifications (Microsoft MCP)
  • Constant personal growth (defined career paths, additional leave for training, training budget)
  • Medical package, Multisport card and life insurance
  • Thursday lunches at the office
  • Modern office with a swimming pool on the roof
  • Great atmosphere at workplace!

You are an ideal candidate if you have:

  • 5+ years of commercial experience as a Software Engineer
  • 3+ years of experience in programming in React (16+)
  • Strong proficiency in TypeScript/ JavaScript
  • Experience with writing tests
  • Good understanding CI/CD pipelines
  • Experience with Azure Cloud
  • Experience with REST API’s
  • Hands-on experience with RESTful API integration
  • Worked with the team on design, dependencies, backlog and code maintainability of a product
  • Mature understanding to strike the balance between ideal and pragmatic solutions on a case-by-case basis
  • Great communication skills, also in English to collaborate effectively with the team and stakeholders

Extra points for:

  • Experience with work in an Agile environment
  • Knowledge of Zustand store

Digitalize the world with us!


If you have questions about this position, contact me 🤙

Aneta Zawieja

HR Specialist

+48 535 566 283

Apply for this job

    This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

    Contact us

    We are ready to answer your questions.

    Claartje Pothof-van der Zande

    HR Specialist

    +31 24 366 0 466

    Aneta Zawieja

    HR Specialist

    +48 535 566 283

    Want to get to know us more? Follow SIENN on Instagram! ?