RF Engineer

About the Role The Avionics Team is looking for an RF Engineer to design, develop, and validate the RF hardware that enables communication, telemetry, command and control, and high-bandwidth data transport across our spacecraft platforms. This role is heavily focused on board-level RF design and integration, working closely with electrical, PCB layout, firmware, and test engineers to deliver high-performance RF subsystems capable of operating reliably in the space environment. You will own RF circuitry from architecture through flight qualification, helping build the communications backbone of the orbital economy. Responsibilities Design and develop RF and microwave circuits for spacecraft communication, telemetry, tracking, and data transmission systems Architect and implement board-level RF hardware including LNAs, PAs, filters, mixers, synthesizers, oscillators, and frequency conversion chains Design and characterize high-speed digital signal paths (SerDes lanes, 25+ Gbps) including signal conditioning, switching, and equalization hardware Perform RF schematic capture, component selection, simulation, and analysis; characterize RF switches, variable attenuators, and amplifiers across the RF signal chain Partner closely with PCB layout engineers to optimize RF and high-speed board layouts — stackup selection, controlled impedance routing, coplanar waveguide structures, antipad geometry, and connector launch optimization Run 3D EM simulations in HFSS or CST — connector-to-microstrip transitions, via structures, and discontinuity characterization — and drive optimizer workflows to meet return loss and insertion loss targets Extract and validate S-parameters via simulation and measurement; work with Touchstone files across simulation, schematic, and measurement environments Develop and execute board-level validation and characterization plans using VNAs, spectrum analyzers, oscilloscopes, and BERTs Perform RF and signal integrity bring-up, troubleshooting, and root cause analysis on prototype and production hardware Support environmental testing including thermal vacuum, vibration, EMI/EMC, and radiation qualification activities Collaborate with systems engineers to define RF and signal integrity requirements and interface specifications Drive hardware designs from concept through manufacturing, integration, and flight deployment; script and automate simulation and EDB workflows where practical (Python/PyAEDT) Basic Qualifications Bachelor's degree in Electrical Engineering, RF Engineering, Physics, or related field 5+ years of experience designing RF or microwave hardware at the board level Experience with RF simulation tools such as HFSS, ADS, AWR Microwave Office, CST, or similar Hands‑on experience with VNAs, spectrum analyzers, signal generators, oscilloscopes, and power meters Strong understanding of RF fundamentals: impedance matching, transmission lines, S‑parameters, noise figure, gain, linearity, and frequency synthesis Familiarity with high‑speed PCB design: controlled impedance, differential signaling, stackup selection, and signal integrity trade‑offs Preferred Qualifications Master's or PhD in Electrical Engineering, RF Engineering, Physics, or related field Experience developing RF or high‑speed hardware for aerospace, satellite, defense, or high‑reliability applications Experience with high‑frequency communications systems including S‑band, X‑band, Ku‑band, Ka‑band, or optical communications support electronics Experience designing solderless or press‑fit connector launches and optimizing transition geometry for return loss at mmWave frequencies Experience scripting HFSS or EDB workflows in Python (PyAEDT, pyEDB) for simulation automation and layout‑driven EM extraction Familiarity with high‑speed SerDes signal chains including RF switches, variable attenuators, DC block design, and bias tee integration Experience with RF PCB layout: CPW routing, antipad sizing, via stitching, coplanar ground pours, and layer‑to‑layer transition design Experience with EMI/EMC design and qualification testing Familiarity with radiation‑tolerant electronics and spaceflight hardware requirements Experience working in fast‑paced startup environments Compensation and Benefits The salary range for this position is $128,000 - $175,000 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 Cowboy Space Corporation