{"id":683810,"url":"https://alion.io/job/samaraaerospace-senior-rf-engineer","title":"Senior RF Engineer","company":{"id":720615,"name":"Samara","domain":"samara.space","url":"https://alion.io/company/samara-4","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":75,"open_postings":5,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-06T05:45:30Z"}},"role":"Hardware","role_family":"Hardware","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["San Francisco, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":150000,"max":190000,"currency":"USD","period":"year","gross":null,"usd_annual":190000},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":true,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Linux","optional":false},{"name":"Python","optional":false},{"name":"Agile","optional":true}],"status":"live","first_seen_at":"2026-04-21T18:13:21Z","employer_posted_date":"2026-07-30","last_verified_at":"2026-10-06T19:58:26Z","board_verified":true,"closed_at":null,"days_open":168,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":167},"description":"About Us:\nSamara Aerospace is revolutionizing satellite design by addressing the challenges of deploying and managing large satellite constellations. Our innovative Hummingbird spacecraft bus offers a modular and scalable platform that streamlines satellite production and deployment, significantly reducing launch costs. Hummingbird's compact architecture maximizes launch capacity, making it the most efficient and agile spacecraft in the industry. At the core of our technology is the patented Multifunctional Structures for Attitude Control (MSAC) system. Unlike traditional wheel-based pointing control systems, MSAC utilizes actuators embedded in the hinges of deployable solar panels to provide 3-axis attitude control and active jitter cancellation. This design eliminates the need for spinning wheels, reducing mass and potential points of failure, while enhancing pointing precision.\nRole:\nSamara Aerospace is seeking a Senior RF Engineer to join our growing engineering team. In this role, you will own the full lifecycle of RF systems development-from requirements definition and architectural trade studies through design, fabrication, test, and qualification. You will collaborate closely with electrical, mechanical, thermal, software, and systems engineering teams to develop high-performance RF solutions in a fast-paced, mission-driven environment.\nResponsibilities:\nLead architectural R&D efforts for new RF communications and payload subsystems by conducting trade studies and establishing requirements\nDevelop and maintain RF system models and simulations, perform end-to-end link budget analysis, noise and linearity cascades, and interference/co-existence assessments to validate system performance margins across operating conditions.\nDrive the full hardware development cycle from bench prototype through design validation and qualification testing.\nDefining test plans, executing characterization campaigns, and documenting results to demonstrate compliance with system requirements.\nOwn the end-to-end PCB implementation of RF designs, including schematic capture, multilayer board layout (RF/mixed-signal), stackup definition, design rule checks, and liaison with fabrication and assembly vendors to ensure manufacturable, high-performance hardware.\nDesign, simulate, implement, and characterize active and passive RF subsystems at microwave frequencies, including SSPAs, LNAs, power amplifiers, up/down converters, mixers, oscillators, and filters.\nPlan, develop, and execute RF testing at both board level and integrated system level using spectrum analyzers, network analyzers, vector signal generators, and oscilloscopes.\nSupport regulatory compliance efforts including FCC licensing and frequency coordination\nContribute to recruiting, mentoring, and technical development of teammates.\nQualifications:\nB.S. in Electrical Engineering, Physics, Applied Physics, or equivalent; M.S. or Ph.D. preferred.\n5+ years of RF engineering experience with a B.S. degree, or 3+ years with an M.S.\nDeep knowledge of fundamental RF concepts: circuit analysis, noise figure, linearity, gain, radio architecture, and\nHands-on experience designing, building, and testing RF hardware at microwave and/or millimeter-wave frequencies.\nProficiency in RF/EM simulation tools (ADS, HFSS, Cadence, etc)\nProficiency in schematic capture and multilayer PCB layout (Altium preferred).\nPreferred:\nExperience developing RF hardware for aerospace, space, or other mission-critical environments.\nExperience with antenna design and electromagnetics/propagation.\nExperience phased-array antenna systems (beamforming, null-steering).\nFamiliarity with Software Defined Radios (SDRs) and associated digital signal processing.\nProficiency in data analysis and scripting languages (Python) for test automation and signal processing.\nFamiliarity with common bus protocols (I2C, SPI, CAN, UART) and Linux command-line environments\nFamiliarity with satellite communications systems (ground segment and/or space segment), including DVB-S2\nSalary and Benefits:\nPay range: $150,000-190,000 annually to start \nEarly and competitive equity in a rapidly growing startup \nPlatinum-level healthcare, vision, dental, and life insurance covered 100% for you \nPartial dependent coverage available \n401k matching at 4% (no vesting) \nUnlimited PTO and sick time \nCatered lunch 3x per week\nEducation assistance up to $5,250 per year\nRelocation assistance is available \n17 paid holidays (including a “winter break” Dec. 24-Jan. 1 \nWork Authorization\nApplicants must be legally authorized to work in the United States. \nSamara Aerospace does not currently sponsor employment visas for this position.\nEmployment eligibility will be verified upon hire in accordance with federal law.","description_format":"text","description_chars":4756,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["401k plan","Education assistance","Equity","Life 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