Antenna Engineer

Principal Phased Array Antenna Engineer - Radar PayloadsLocation: Seattle, WASalary: up to $275,000 Gross Per Annum + Stocks/Shares + Brilliant benefits packageYou'll join a venture-backed space technology company building the flight-ready electronically scanned antenna arrays at the heart of next-generation spaceborne radar missions.Our state-of-art antennas need to deliver the gain, efficiency, bandwidth, scan performance, sidelobe control, polarization purity, and calibration accuracy that advanced SAR and target-tracking payloads demand and we're looking for the engineer who can own that problem end to end.As Principal Antenna Engineer, you'll have ownership of the antenna end to end: requirements and architecture (including interfaces to adjacent systems), EM design, prototype build, measurement, calibration, and qualification.You'll be the technical owner translating radar performance needs into flight-ready hardware, with a direct line to payload integration and launch.Day to day, you'll:Own phased-array antenna design and EM modeling, from requirements through architecture and trade studiesBuild and measure prototypes, correlating EM models to test dataOptimize and calibrate array performance across frequency and scan angleDevelop beam-steering and alignment methods, working closely with RF, FPGA/DSP, and software teamsSupport spacecraft integration and environmental qualificationMature antenna hardware from prototype to a flight-ready, repeatable productYou'll bring:Expert-level design experience with phased-array / electronically scanned antennas — array theory, impedance and mutual coupling, scan behavior, and polarizationHands-on experience with beamforming and array calibrationHigh-frequency PCB, feed, and passive RF component designProficiency with EM simulation tools such as HFSS, CST, or FEKOProgramming/scripting skill in Python or MATLAB for modeling and data analysisExperience with VNA and near-/far-field antenna measurementExperience carrying RF hardware through space qualificationYou'll also need to be hands-on, rigorous, self-driven, and take full ownership of outcomes, with strong first-principles EM judgment, discipline about correlating models to test data, and comfort operating with ambiguity and evolving requirements; while collaborating closely across RF, digital, mechanical, thermal, and software disciplines.This role may require access to U.S. export-controlled information and may require the ability to obtain a U.S. government security clearance. Candidates must be a U.S. citizen to be eligible.