Sateliot is a Barcelona-based satellite company with one goal: connect everything, everywhere.
Founded in ****, we've built the first satellite constellation that lets standard commercial devices communicate directly from space.
Our technology bridges the gaps that terrestrial networks will never reach, bringing affordable and secure connectivity to industries, governments, and communities across the planet.
About The Team & This Role Sateliot develops its radio access software in-house, for both technologies our constellation serves: That means satellite links, long delays, Doppler and discontinuous coverage, on real hardware and against real devices — non-terrestrial networks are one of the most active areas in telecoms right now, and here you work on the stack itself rather than on top of someone else's.
As Senior RAN Software Engineer you will own radio stack development across both technologies, working closely with our stack architecture lead.
It is a hands?Prove the stack on real hardware and real devices — embedded platforms, commercial modules, and the compute and power envelope a satellite payload allows.
3GPP releases, the capabilities our network roadmap commits to, and what the constellation can actually support.
on development experience of a cellular radio stack in C or C++ — PHY, MAC, RLC,



PDCP or RRC — with at least one full cycle owned through integration on real hardware.
time engineering on constrained hardware, with the profiling discipline to fit a radio stack into a tight compute and power budget.
RAN specifications and prove conformance, and to use AI?assisted development with the judgement to validate what it produces.
Bonus if you have Non?terrestrial networks: satellite links, long delays, Doppler, discontinuous coverage.
Test automation and continuous integration for radio software.
Working proficiency in English.
What we offer Real impact on one of Europe's most ambitious space projects.
Growth: we cover 50% of courses or master's degrees (up to 5% of your salary), plus Spanish and Catalan classes.
50% on private health insurance and Urban Sports Club, a flexible schedule, and hybrid work, we focus on results, not hours.
A truly general team: 20+ nationalities building something genuinely new - and genuinely nice to work with.
Catering: if you don't have time to cook, we partner with a catering company so a freshmeal is sorted, no need to think about it.
Parking: on-site parking at the office, with Sateliot covering 50% of the cost - plus free bike parking if you prefer to pedal in.

📌 Senior Software Engineer with English, hibrido (España)
🏢 Sateliot
📍 España