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Offer summary
(Summary generated by AI based on the full job description)
The project involves C++ software development in the 5G UE software stack and integration with hardware telecom solutions. Key skills include C++ programming, expertise in FreeRTOS and O-RAN testing, and systems integration and testing. Responsibilities include development, integration, testing, and supporting architectural decisions. The work is remote with coordination aligned to the EST time zone.
from: 14 September 2026
to: 14 October 2026
salary not specifiedB2B contract (full-time)
salary not specifiedcontract of employment
Offer parameters
level:senior
working mode:remote • hybrid • full office
Białystok, Centrum
Requirements
Expected technologies
5G
C++
FreeRTOS
O-RAN (Open Radio Access Network)
Optional technologies
Python
Telecommunication
Our requirements
- Minimum 6 years of experience in software development with a strong focus on C++
- Proven experience working with 5G UE software stack and systems integration
- Hands-on expertise in FreeRTOS and O-RAN testing
- Practical experience in software integrations and testing
- Fluent English
Optional
- Experience with Python for testing purposes
- Background in the Defense or Telecommunications industry
Your responsibilities
- Developing C++ software for the 5G UE software stack
- Integrating various software components into hardware solutions
- Conducting software testing as necessary to ensure quality
- Supporting the team in making architectural and technological decisions
- Collaborating with cross-functional teams to deliver integrated solutions
About the project
We are looking for an experienced C++ Developer to join a US-based team focused on integrating customer software into hardware solutions. You will work on the 5G UE software stack and engage in systems integration and testing, contributing to cutting-edge telecommunications projects. The role allows for remote work, but some overlap with the EST time zone from 8:00 to 16:00 will be necessary for effective collaboration. If you are passionate about telecommunications and software development, this opportunity may be the right fit for you.
What we offer
- 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
Recruitment stages
- 1.Send your CV
- 2.Talk to us about your expectations
- 3.Learn more about our projects and choose the best
- 4.Start your adventure with Sii!
Sii Sp. z o.o.
Sii is the leading technology consulting, digital transformation, engineering, and business services vendor in Poland. We already employ more than 7 300 professionals and implement projects in a variety of industries for clients from many countries around the world. The Great Place to Work title, won 10 times in a row, proves that at Sii, we create a friendly work environment.
Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.
This is how we work
5G Senior C++ Developer (f/m/x)
I apply to:
Sii Sp. z o.o.
Białystok, Centrum
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