Senior 5G Systems Engineer (NTN ,Ground & Access) * Location: London (Hybrid/UK-remote considered) * Type: Permanent * Salary: Competitive benefits You’ll lead the build-out of a cloud-native 5G RAN for a new satellite constellation, joining a small senior team working at the intersection of space and telecom. The Impact Design and integrate a standards-compliant satellite RAN (gNB/DU/CU) and the ground access layer, adapting terrestrial 5G for non-terrestrial networks (NTN). You’ll drive performance, reliability and security end-to-end across space and ground segments. What you’ll do * Lead design/integration of a 5G satellite RAN and ground access * Develop/validate NTN-compliant RAN components; ensure 3GPP alignment * Build and operate a cloud-native RAN (containers, orchestration, automation) * Collaborate with RAN, Core and Satellite teams; own lab, sim and field trials * Champion scalability, security, interoperability and regulatory compliance What you’ll bring * 5 years in 5G RAN development/integration (NR, 3GPP, gNB/DU/CU) * Cloud-native telecom, microservices, containers, Kubernetes * Solid IP networking (routing/switching/security) & scripting (Python/Bash) * RF/link-budget awareness and comfort across PHY/MAC and system level Desirable Skills * NTN or satellite ground systems (antennas, modems, RF) experience * Exposure to 5G Core and automated telco orchestration at scale * Security for mission-critical telco, constellation ops/orbital dynamics Why Join? * Own meaningful chunks of a first-wave network * Work with senior operators * High autonomy, real impact, modern stack Interested? Please apply