Senior Software Engineer – NR-NTN Protocols (L3 & L4 / Core Interfaces)

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 NR-NTN upper-layer and core interface protocol implementations. In this role, you will design, implement, and validate PDCP, eGTP, Xn interface, NGAP (N2), and N2/N3 reference point software that runs on Skylo's NTN vRAN and core integration platform, working closely with our Core Network, MNO integration, and systems teams to deliver production-grade NTN connectivity.

Location

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.

What You’ll Do

• Design, develop, and maintain C++ implementations of 5G NR upper-layer and core interface protocols: PDCP, eGTP-U/C, Xn Application Protocol (XnAP), NGAP (N2 interface), and N3 use...