SpaceX in Redmond, WA is seeking a Sr. Software Engineer for Beam Planning (Starlink Mobile). You will own the complete lifecycle of software from design to testing and support, delivering low-latency, high-bandwidth beamforming software for a global satellite network. The role requires 5+ years of software development, solid C/C++ skills, and experience with real-time, distributed systems. Willingness to work extended hours and weekends is expected.