Senior RF Engineer

CHAOS Industries is redefining modern defense with a multi-product portfolio that gives the ultimate advantage—domain dominance. The company's products are powered by Coherent Distributed Networks (CDN™), empowering warfighters, commercial air operators, and border protection teams to act faster, adapt rapidly, and stay ahead of evolving threats.  CHAOS Industries was founded in 2022 and has raised a total of $1 billion in funding from leading investors, including 8VC, Accel, and Valor Equity Partners. The company is headquartered in Los Angeles, with offices in Washington, D.C., San Francisco, San Diego, Seattle, and London. For more information, please visit www.chaosinc.com . Role Overview:   CHAOS is seeking a Senior RF Engineer to support the design, analysis, integration, and verification of high-reliability RF and microwave electronics for aerospace and defense applications. This role works as part of a cross-functional, agile development team and spans the full product lifecycle, from early architecture and component trade studies through detailed design, testing, production support, and post-production sustainment of mission-critical systems.  This is a hands-on hardware role focused on translating system requirements into robust RF implementations, integrating and troubleshooting prototype hardware, and validating performance through lab and field experimentation. The ideal candidate is comfortable using simulation tools to guide decisions, but is strongest when working with real hardware, real measurements, and real system tradeoffs. This is a full-time, on-site position in Hawthorne, CA.    Responsibilities:   Design, analyze, prototype, and tune RF circuit boards incorporating catalog MMICs, including LNAs, power amplifiers, baluns, filters, mixers, and associated bias and matching networks  Perform architecture development and component trade studies to meet system-level RF performance requirements  Plan and execute RF testing and characterization, including integration and troubleshooting at the board, module, and subsystem levels  Contribute to the design and specification of RF test equipment, fixtures, and automation  Collaborate with systems, power, digital, mechanical, and software engineers to ensure RF designs integrate cleanly within larger systems  Serve as a technical contributor from development through production and post-production, including failure analysis and field support  Support linear, nonlinear, and electromagnetic simulations using industry-standard tools (e.g., HFSS, ADS, AWR, or equivalent)  Support design, analyze, prototype, and tune RF circuit boards incorporating catalog MMICs, including LNAs, power amplifiers, baluns, filters, mixers, and associated bias and matching networks  Support PCB layout (Altium) and RF stack-up definition, including impedance control, grounding, shielding, and isolation techniques  Minimum Requirements:   Bachelor's degree in Electrical Engineering with 7+ years of progressively responsible RF engineering experience, or a Masters with 5+ years, or a PhD with 2+ years of relevant experience Experience developing RF hardware for aerospace, defense, avionics, radar, EW, communications, or space systems  Strong understanding of RF fundamentals and how they add to system-level performance, including gain, noise figure, linearity, phase noise, stability, and impedance matching  Hands-on experience with RF test equipment (e.g., VNAs, spectrum analyzers, signal generators, power meters)  Demonstrated ability to analyze, troubleshoot, and resolve complex RF circuit performance issues  Strong attention to detail and ability to operate effectively in fast-paced, development-focused environments  Ability to obtain and maintain a U.S. security clearance  Preferred Requirements:   Experience with radar, EW, remote sensing, or communications subsystem architecture and performance analysis. Experience planning and executing lab and field experiments, including test planning, data collection, and measurement correlation. Experience with RF front-end prototyping and integration, including LNAs, PAs, filters, mixers, frequency conversion chains, and antenna interfaces. Familiarity with antenna/system integration, EMI/EMC, environmental constraints, and applicable aerospace/defense standards. Experience correlating simulation, analysis, and measured data to refine designs and retire technical risk. Experience supporting design reviews, customer interactions, verification planning, and transition from development into production. Active U.S. security clearance. Experience with power amplifier design, analysis, and integration  Familiarity with EMI/EMC considerations for RF systems and compliance with applicable aerospace standards  Experience with mixed-signal or RF/digital interfaces  Knowledge of manufacturing considerations for RF hardware, including tolerance analysis and yield drivers  Experience supporting production hardware and fielded systems  Experience with RF PCB layout best practices and design-for-manufacturing considerations  Familiarity with DO-160, MIL-STD-461, or similar aerospace/defense standards  Why CHAOS? Health Benefits: Medical, dental, and vision benefits 100% paid for by the company Additional benefits : 401k (+ 50% company match up to 6% of pay), FSA, HSA, life insurance, and more Our Perks: Free daily lunch, ‘No meeting Fridays’, unlimited PTO, casual dress code Compensation Components: Competitive base salaries, generous pre-IPO stock option grants, relocation assistance, and (coming soon!) annual bonuses Team Growth: 350 employees and counting across 5 global offices Salary Range: $160,000 - $220,000 The stated compensation range reflects only the targeted base compensation range and excludes additional earnings such as bonus, equity, and benefits. If your compensation requirements fall outside of the range, we still e