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Fullstack Software Engineer with Node.js and C++
  • Białystok
Fullstack Software Engineer with Node.js and C++
Białystok, Białystok, Podlaskie Voivodeship, Polska
Sii Sp. z o.o.
19. 7. 2025
Informacje o stanowisku

technologies-expected :


  • JavaScript
  • TypeScript
  • C++

about-project :


  • Are you excited to create intuitive user interfaces for products trusted by millions worldwide? We’re partnering with a global leader in cloud communications, renowned for delivering real-time video, voice, and messaging solutions that power many popular platforms you likely use daily. We’re looking for a Senior Fullstack Developer with strong Node.js skills and a genuine passion for low-level programming.
  • Ready to contribute to a product making a global impact? Let’s connect. Apply now and take your next big career leap.

responsibilities :


  • Develop front-end components for complex, real-time applications with a focus on scalability and performance
  • Work closely with designers and backend teams to build intuitive and efficient user interfaces
  • Implement and follow best coding practices to ensure maintainable and up-to-date code
  • Collaborate with team members to share knowledge and improve development processes
  • Participate in technical discussions and help make informed decisions to enhance system architecture

requirements-expected :


  • Minimum 5 years of professional experience in front-end or fullstack development, with strong skills in modern JavaScript and TypeScript
  • Good knowledge of C++ or professional experience in the telecommunications industry, demonstrating familiarity with low-level programming concepts and system internals
  • Proven experience with modern front-end frameworks
  • Solid understanding of responsive design principles and performance optimization techniques
  • Strong collaboration and communication skills, with the ability to support and mentor team members
  • Residing in Poland 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 Białystok
  • Białystok - Oferty pracy w okolicznych lokalizacjach


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