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C Developer – telco sector (f/m/x)
  • Rzeszow
C Developer – telco sector (f/m/x)
Rzeszów, Rzeszow, Podkarpackie Voivodeship, Polska
Sii Sp. z o.o.
27. 3. 2026
Informacje o stanowisku

technologies-expected :


  • C
  • Linux
  • CMake

about-project :


  • If you are looking for a new challenge as a C Developer, join a low-level embedded project in the telecommunications sector focused on 5G mobile network hardware. The role involves developing high-performance and reliable software close to the hardware layer for advanced telecom systems. If this opportunity sounds interesting to you, please apply.

responsibilities :


  • Work as a C developer for high-performance and high-reliability mobile network systems and applications
  • Develop scalable, multi-threaded functionalities using Linux OS and its multi-threading and cross-thread/cross-process communication capabilities
  • Collaborate with cross-functional teams to design, implement, and test new features and functionalities
  • Troubleshoot and debug complex system issues, leveraging your Linux OS and knowledge of telecommunications protocols and standards
  • Participate in code reviews and maintain coding standards, ensuring high-quality and maintainable code
  • Create and/or manage CMake build configurations

requirements-expected :


  • Minimum 3 years of experience in C development
  • Strong proficiency in C programming for developing high-performance and highly reliable systems
  • Experience developing scalable, multi-threaded applications on Linux, including inter-process and cross-thread communication
  • Solid understanding of telecommunications protocols and mobile network systems
  • Ability to troubleshoot, debug, and optimize complex system-level issues in Linux environments
  • Experience with build systems and code quality practices, including CMake configuration and participation in code reviews
  • Good command of English (communicative for all work purposes)
  • Fluent in Polish required
  • 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 76M 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 Rzeszów
  • Rzeszów - Oferty pracy w okolicznych lokalizacjach


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