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At Vast, our mission is to contribute to a future where billions of people are living and thriving in space. Vast is developing next-generation space stations to ensure a continuous human presence in space for America and its allies, enabling advanced microgravity research and manufacturing, and unlocking a new space economy for government, corporate, and private customers. Using an incremental, hardware-rich and low-cost approach, Vast is rapidly developing its multi-module Haven Station. Haven Demo’s 2025 success made Vast the only operational commercial space station company to fly and operate its own spacecraft. Next, Haven-1 is expected to become the world’s first commercial space station when it launches, followed by additional Haven modules to enable permanent human presence by 2030. Our team is all-in, committed to executing our mission safely and on time. If you want to work with the most talented people on Earth furthering space exploration for humanity, come join us. Vast is looking for a Senior RF Engineer , reporting to the Director of RF Engineering , to support the development of the systems that will be required for the design and build of human-rated space stations. This will be a  full-time, exempt position located in our Long Beach location. Responsibilities:  Comprehensive ownership of one or more Vast-designed or COTS radio products from production to mission Attain technical proficiency with your component(s) and function as the technical authority on its operation Manage and the product development timeline in the context of the  project schedule Maintain relationships with vendors and hold them accountable for product requirements, deliveries, and schedule Define test plans and procedures for acceptance and qualification testing Define checkout tests to validate proper operation during and after integration onto the space station Define how the components will be used during the mission Identify technical issues during development and drive them to resolution Guide your component through manufacture, acceptance testing, and qualification testing Minimum Qualifications:  Bachelor of Science degree in Electrical Engineering, Physics, or other relevant engineering or science discipline Preferred Skills & Experience: Strong understanding of the theory and usage of standard radio test equipment Strong background in radio and electronics test and debug Strong understanding of digital modulation formats such as BPSK, QPSK, QAM Proficiency writing and maintaining RF link budgets Understanding of the basic concepts of forward error correction (FEC) codes Familiarity with key receiver specifications including noise figure, sensitivity, and bit error rate Experience with aerospace acceptance and qualification test practices RF system and circuit design software such as Matlab and Keysight ADS Familiarity with RF block lineup design and cascaded noise/linearity analysis Familiarity with RF power amplifiers and standard figures of merit such as Psat, P1dB, OIP3, ACLR, and PAE Strong understanding of S-parameters Understanding of Smith Charts and impedance matching networks Additional Requirements: Electromagnetic simulation software such as HFSS Understanding of the OSI networking model Pay Range:   RF Engineer Level II: $120,540 - $171,100 Senior RF Engineer: $147,600 - $209,520 Pay Range: California $120,540 — $209,520 USD COMPENSATION AND BENEFITS Base salary will vary depending on job-related knowledge, education, skills, experience, business needs, and market demand. Salary is just one component of our comprehensive compensation package. Full-time employees also receive company equity, as well as access to a full suite of compelling benefits and perks, including: medical, dental, and vision coverage for employees and dependents, generous paid time off; up to 2