Senior RF Engineer

Mission Cowboy Space Corporation is solving the global energy crisis by building the infrastructure for abundant, resilient space-based solar energy. We are tackling one of humanity’s most complex engineering challenges with a world-class team dedicated to delivering a revolutionary power platform. Cowboy Space Corporation is transforming how civilization powers, computes and connects - from orbit to Earth. Background Cowboy Space Corporation is building the infrastructure to power and connect the orbital economy. Our modular, scalable satellites collect sunlight in Low Earth Orbit to enable multiple integrated applications: transmitting energy via infrared lasers (space-to-earth and space-to-space), powering on-orbit high-performance computing clusters (GPU/TPU), and providing secure, high bandwidth optical data transport. Current energy and data systems rely on complex logistics and outdated infrastructure. Cowboy Space Corporation overcomes these challenges by enabling direct, on-demand, secure, and scalable energy distribution and data processing from space. This will revolutionize how we operate in orbit and on Earth, supporting the rapidly expanding space industrial base, ISAM (In-Space Servicing, Assembly, and Manufacturing) operations, remote regions, and military bases. Baiju Bhatt founded Cowboy Space Corporation in 2024. Inspired by his father’s work with NASA Langley Research Center, Baiju earned his B.S. in Physics and M.S. in Mathematics at Stanford before co-founding Robinhood, now a public company that has helped over 20 million Americans access the financial system. Cowboy Space Corporation has raised ~$365 million from Index Ventures, Interlagos, Construct Ventures, Breakthrough Energy Ventures, Andreessen Horowitz, NEA, and others. This is an ambitious mission that demands extraordinary talent. Cowboy Space Corporation’s team has worked at places like SpaceX, Blue Origin, Stoke Space, Astranis and NASA, and is based in San Carlos, CA. If you're ready to solve complex technical challenges and help build the most important energy company in the world, we want to hear from you. About the role We are looking for a hands-on RF engineer to own the selection, development, integration, and radio systems and associated RF hardware for our launch vehicle and spacecraft. You will turn mission requirements into a communications system that works reliably from the ground station to the vehicle. You will lead RF system trades, maintain link budgets, and take radio hardware through bring-up, environmental qualification, vehicle integration, and flight support. This is an individual contributor role with technical ownership across suppliers and the electrical, mechanical, software, integration, and test teams. Responsibilities Define RF requirements and maintain link budgets for telemetry and command links, including antenna performance, losses, interference, and ground-station compatibility. Evaluate radios, antennas, and RF components for the required bands from UHF through Ka-band; assess performance, interfaces, qualification evidence, and integration risks. Own radio and RF hardware bring-up, configuration, characterization, and integration with flight software and vehicle avionics, working with suppliers to resolve interface and performance issues. Develop and execute acceptance and qualification plans for RF hardware, including functional, vibration, shock, thermal, thermal-vacuum, and EMI/EMC testing as applicable. Coordinate facilities and equipment, lead test readiness, and maintain verification records. Develop RF test benches, fixtures, cabling, calibration methods, and automation with the test team; identify testability needs early and support repeatable acceptance testing for subsequent builds. Lead RF anomaly investigations across hardware, software, test equipment, and ground interfaces, verify corrective actions, and support flight operations. Prepare technical inputs for FCC licensing and coordinate compatibility testing with ground-station providers. Resolve RF interference and coexistence issues with payload and vehicle teams. Partner with the navigation sensor owner on GNSS antenna and RF interfaces, interference, and compatibility while maintaining clear ownership of the communications system. Bachelor's degree in electrical, computer, or aerospace engineering, physics, or a related field. 8+ years of experience developing or integrating RF communications systems for space applications, including hands-on hardware verification and environmental qualification. Experience translating communications requirements into radio and antenna selections, link budgets, and hardware or system-level verification plans. Proficiency with RF laboratory equipment, including vector network analyzers, spectrum or signal analyzers, signal generators, power meters, and oscilloscopes. Working knowledge of digital communications and modulation, RF measurement methods, and EMI/EMC mitigation through grounding, shielding, filtering, and cable routing. Ability to use Python or MATLAB for test support and data analysis, document results clearly, and resolve integration issues with suppliers and engineers from other disciplines. Preferred experience Experience taking supplier-provided flight radios through vehicle integration, ground-station testing, and on-orbit operations. Experience with CCSDS protocols, software-defined radio interfaces, or modulation and coding schemes used in satellite communications. Experience automating RF instruments using SCPI, VISA, or comparable interfaces, and working in Linux environments. Experience applying space-hardware qualification and acceptance standards such as GEVS, MIL-STD-1540, SMC-S-016, or ECSS, and planning EMI/EMC verification. Experience using RF analysis tools such as HFSS, FEKO, ADS, or AWR, or preparing technical material for spectrum licensing and coordination. Compensation and Benefits The salary range for this position is $170,000 – $202,00 annually. The actual base salary offered will depend on factors such as job-related skills, experience, qualifications, and internal equity. Equity in Cowboy Space Corp. Employees and their eligible dependents may enroll in medical, dental, and vision insurance 401(k) retirement savings plan Paid time off 10 paid holidays per calendar year Paid parental leave Relocation assistance if applicable Daily lunch in the office and a fully stocked kitchen with beverages and snacks Export Control Requirement: To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), applicants must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about ITAR here . Disclaimer This job description is a summary of the primary duties and responsibilities of the job and position. It is not intended to be a comprehensive or all-inclusive listing of duties and responsibilities. Contents are subject to change at Cowboy Space Corp.’s discretion. Cowboy Space Corp. is an equal employment opportunity employer. We consider individuals for employment or promotion according to their skills, abilities and experience. Cowboy Space Corp. is committed to complying with all applicable laws prohibiting discrimination based on race, color, religious creed, age, national origin, ancestry, physical, mental or developmental disability, sex (which includes pregnancy, childbirth, breastfeeding and medical conditions relating to pregnancy, childbirth or breastfeeding), veteran status, military status, marital or registered domestic partnership status, medical condition (including cancer or genetic characteristics), genetic information, gender, gender identity, gender expression, sexual orientation, as well as any other category protected by federal, state or local laws. #J-18808-Ljbffr