Skylo
Technology
SeniorSoftwareEngineer–NR-NTNProtocols(L2&L3)
Neural analysis suggests this role is
optimal for Senior candidates.
“Senior Software Engineer – NR-NTN Protocols (L2 & L3) at Skylo. Skills: NR-NTN Protocols, Layer 2, Layer 3, Protocol Stack. Design, develop, and maintain C++ implementations. Implement NTN-specific L2 adaptations”
Industry & Context.
Root-cause analysis; Debugging; Performance tuning
What They're Looking For.
Must Have
2+ years wireless/telecom protocol development, Master's or PhD degree, Proficiency in C++ (C++14/17), Solid understanding of 5G NR Layer 2 protocols, Deep, implementation-level knowledge of RRC, Solid understanding of UE context lifecycle, Experience with Linux kernel/user-space debugging tools, Proficiency in production-grade protocol software, Ability to read 3GPP specifications
Nice to Have
Experience with AI coding assistants
What You'll Do.
and maintain C++ implementations
Implement NTN-specific L2 adaptations
Develop NTN-specific RRC enhancements
Implement RRC measurement framework
Implement RRC connection control procedures
Collaborate with Core Network teams
Validate NGAP procedures
Translate 3GPP specifications
Derive software requirements
Create detailed L2/L3 designs
Participate in code reviews
Contribute to technical documentation
Contribute to design specifications
Use AI coding assistants
How You'll Work.
Team & Collaboration
Standards teams; Systems teams; Integration teams; Core Network teams; MNO integration teams
Full Job Description
The world still has coverage blind spots. You could help eliminate them at Skylo. Skylo has pioneered a standards-based approach to satellite connectivity. We connect smartphones and IoT devices directly to satellites. No special hardware, no entirely new networks. Just billions of existing devices, suddenly reachable anywhere on Earth. We're not building toward this future. We're already in it. Our direct-to-device service is live on millions of activated devices across five continents, covering more than 72 million square kilometers, in partnership with leading satellite operators, mobile network operators, Tier-1 chipset makers, and OEMs worldwide. And we're just getting started. At the heart of it all is Skylo's commercial NTN vRAN: a 3GPP standards-based, cloud-native platform that seamlessly bridges terrestrial and satellite networks. It's the infrastructure that makes true anywhere, anytime connectivity possible. When you join Skylo, you'll work at the intersection of three markets reshaping how the world stays connected: mass-market consumer devices, automotive, and industrial IoT. Enabling people outdoors and critical workflows in the world's most remote places. This is a rare chance to work on technology that matters, at a company that's already proving it works This role is based in Espoo, Finland, one of Skylo's core engineering hubs and fastest-growing sites. You'll work onsite three days a week as part of a team that's scaling quickly. HOW YOU WILL IMPACT SKYLO We are seeking a highly skilled Senior Software Engineer to join our Protocol Stack team, focused on the development and optimization of 5G New Radio Non-Terrestrial Network (NR-NTN) Layer 2 and Layer 3 protocol implementations. In this role, you will design, implement, and validate MAC/RLC/PDCP and RRC protocol software that runs on Skylo's NTN vRAN platform, working closely with our standards, systems, and integration teams to bring NR-NTN connectivity to market at scale. WHAT YOU’LL
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