Skylo

Technology

SeniorSoftwareEngineerNR-NTNProtocols(L1&L2)

€75–105k ~AI est. Espoo, Finland FULL TIME Remote Friendly
Market Sentiment
HIGH DEMAND

Neural analysis suggests this role is
optimal for Senior candidates.

The Brief

“Senior Software Engineer – NR-NTN Protocols (L1 & L2) at Skylo. Skills: NR-NTN Protocols, L1/L2 protocol stacks, Protocol development, Embedded software. Design C++ implementations. Implement NTN adaptations”

Industry & Context.

Technology
Problems you'll solve

Root-cause analysis; Troubleshooting

What They're Looking For.

Must Have

2+ years software engineering, Master's or PhD degree, C++ proficiency, 5G NR PHY layer understanding, 5G NR MAC layer understanding, FAPI understanding, DL/UL schedulers design experience, Linux debugging tools experience, Protocol software development proficiency

Nice to Have

Embedded or near-real-time protocol software experience

What You'll Do.

Design C++ implementations

Implement NTN adaptations

Design FAPI interface

Develop DL/UL scheduler algorithms

Validate L1/L2 protocol behaviour

Translate specifications to requirements

Participate in code reviews

Contribute to technical documentation

Use AI coding assistants

How You'll Work.

Team & Collaboration

RF teams; Systems teams; Integration teams; Baseband 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 Skylo is 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 1 and Layer 2 protocol implementations. In this role, you will design, implement, and validate PHY, MAC, FAPI, and scheduler software that runs on Skylo's NTN vRAN platform, working closely with our RF, systems, and integration teams to bring NR-NTN connectivity to market at scale. WHAT YOU’LL DO -

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