Senior FPGA Engineer, Networking & Security

About the role Muon Space is seeking a Senior FPGA Engineer specialized in onboard networking, cryptography and security to design the network fabric and security architecture of our next-generation spacecraft, to join our High Performance Compute (HPC) team. You'll define how data moves across the spacecraft, from sensor front-ends through payload compute to downlink, and how it stays secure, both in flight and end-to-end to the ground. This is a hands-on FPGA engineering role with strong architectural influence: you'll define the concepts, write the RTL, and work shoulder-to-shoulder with our Staff Architect, EE team, and payload engineers to bring your solutions to life. This position is hybrid and requires working on-site in our San Jose, CA office three days per week. Responsibilities Define the onboard networking architecture for Muon spacecraft, including switching, routing, packet filtering, firewalling, deep packet inspection, and VPN concepts. Define and implement end-to-end encryption, packet-based encryption at router level, file-based encryption for onboard and downlink data. Drive the definition of an onboard Ethernet switching and routing device and evaluate implementation options (COTS, semi-custom, fully custom FPGA-based). Design and build a spacecraft NoC (Network-on-Chip) and robust FPGA-to-FPGA links, with continuous link health monitoring and reporting. Own the Ethernet PHY and MAC integration on FPGAs, link aggregation, and signal-integrity trade-offs, in close partnership with the HPC architecture and Electrical Engineering team.