Senior Staff Core Operations Engineer (L3)

About Skylo Skylo is a global Non-Terrestrial Network service provider based in Mountain View, CA, offering a service that allows smartphone and IoT cellular devices to connect directly over existing satellites. Skylo’s direct-to-device service is now live on millions of activated devices across five continents, with more than 60 million square kilometers of coverage, in partnership with multiple satellite operators, mobile network operators (MNOs), Tier-1 chipset makers, and OEMs. Devices connected over satellite are managed and served by Skylo's commercial NTN vRAN, featuring a 3GPP standards-based cloud-native base station and core. Skylo provides an anywhere, anytime connectivity solution that seamlessly roams between terrestrial and satellite networks. Our focus is on enabling connected services for people outdoors and connected workflows across three main verticals: mass-market consumer devices, automotive, and industrial IoT. This role is located in Espoo, Finland where we are onsite 3 days a week in office. Summary Of How You Will Impact Skylo Skylo is hiring a Sr. Staff RAN Operations Engineer to help fulfill Skylo’s mission of making satellite connectivity available to all. As the production authority for RAN health and performance across Skylo’s NTN network, you will evolve our Network Operations from reactive monitoring to service-centric assurance. This is a live-network, SLA-protecting role focused on defining RAN KPIs, leading production optimization, and acting as the Level-3 authority during customer impacting incidents. As the Sr. Staff Core Operations Engineer, you will operate as the production authority for Skylo’s live LTE and 5G Core within its global Non-Terrestrial Network (NTN) platform. You will directly safeguard 24×7 service reliability by leading L3 incident response, resolving complex control-plane and user-plane failures, and driving Root Cause Analysis across Core, RAN, Cloud (GCP), and partner interfaces By transforming telemetry, KPIs, and signaling behavior into actionable monitoring, automation, and operational standards, you will reduce MTTA and MTTR while preventing chronic degradations before they impact customers Your leadership will enable Skylo to scale its commercial NTN footprint—supporting new partners, roaming integrations, and global expansion—without compromising stability, SLA commitments, or customer trust. Your impact will be immediate and mission-critical: Protect Live Service Stability Reduce MTTA and MTTR Through L3 Production Authority Strengthen Operational Excellence Enable Commercial Scalability Improve Cross-Team Execution What the role will look like This position is fundamentally operational and production-centric, focused on safeguarding and continuously optimizing Skylo’s live Non-Terrestrial Network (NTN) mobile core environment. As the Sr. Staff Core Operations Engineer, you will serve as the L3 technical authority within a 24×7 Network Operations framework—owning complex, cross-domain incidents, accelerating service restoration, and delivering thorough, high-quality Root Cause Analysis. You will operate at the core of Skylo’s live LTE and 5G production environment, providing hands-on leadership across RAN, Core, Cloud, and partner interfaces. The role is incident-driven, execution-focused, and deeply integrated across internal engineering teams and external network ecosystems. Balancing architectural accountability with real-time operational command, you will ensure the stability, scalability, and performance of Skylo’s commercial, satellite-enabled mobile core as the network expands globally. Key Responsibilities - This role is responsible for stabilizing, scaling, and continuously hardening Skylo’s live commercial NTN mobile core environment. Own Mobile Core Production Operations - Lead the design, operation, and optimization of LTE EPC and 5G Core functions (MME,HSS, SGW, PGW, AMF, SMF, UPF) within Skylo’s hybrid satellite + cellular ... (truncated, view full listing at source)