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Fullstack Developer – React and Node.js
  • Kraków
Fullstack Developer – React and Node.js
Kraków, Kraków, Lesser Poland Voivodeship, Polska
Sii Sp. z o.o.
19. 9. 2025
Informacje o stanowisku

technologies-expected :


  • React.js
  • Node.js
  • TypeScript
  • AWS
  • Microsoft Azure
  • JavaScript

technologies-optional :


  • CosmosDb

about-project :


  • We are looking for a Full Stack Developer to join our Certificate and Offset Management Product development team. Working in Energys Nature and Environmental Solutions IT Portfolio, you will be supporting the development of one of the portfolios key products, building a robust and scalable service for effective end-to-end management of carbon offsets, renewable energy certificates and green gas solutions. You will work closely with backend engineers, product managers, designer,s and vendors to deliver our product.

responsibilities :


  • Building web applications using modern tools such as React, Typescript,
  • Delivering high-quality, well-tested code,
  • Communicating with other teams and individuals to plan, coordinating and seeking feedback,
  • Pitching in where needed as a valued member of an autonomous, cross-functional team

requirements-expected :


  • Minimum 5 years of experience with modern JavaScript coding, testing, debugging, and automation techniques,
  • Excellent analytical, problem-solving, and troubleshooting skills,
  • Exposure to back-end technologies such as APIs, databases, cloud services, and infrastructure,
  • Background in Computer Science fundamentals: data structures, algorithms, and deftness in object-oriented design and systems architecture,
  • Great communication skills
  • Fluent Polish required

offered :


  • Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
  • Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
  • We share the profit with Workers - over PLN 60M has already been allocated for this aim since 2022
  • Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
  • Comfortable workplace – class A offices or remote work
  • Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
  • PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
  • Investment in your growth – meetups, webinars, training platform and technology blog – you choose
  • Fantastic atmosphere created by all Sii Power People

  • Praca Kraków
  • Kraków - Oferty pracy w okolicznych lokalizacjach


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