Senior RF Electrical Engineer

Who We Are At Firestorm, we are building the future of expeditionary defense manufacturing and autonomous systems. Modern conflict has exposed a fundamental problem: the systems needed most by operators are often too expensive, too slow to produce, and too difficult to sustain at scale. Firestorm exists to change that. We develop mission-adaptable aerial systems and deployable manufacturing infrastructure designed to put capability directly into the hands of the warfighter. From modular unmanned aircraft to xCell -- our deployable microfactory -- our goal is to make defense systems rapidly deployable, adaptable, and producible at the point of need. We are looking for builders, operators, and problem-solvers who want to work on meaningful technology with real-world impact. About the Role As a Senior Electrical RF Engineer at Firestorm, you will own the design, integration, and electromagnetic performance of the antennas and RF systems that enable Firestorm’s sUAS platforms to communicate, navigate, and execute mission. You’ll work closely with airframe, electrical, payloads, and systems engineering teams to translate mission requirements into producible RF hardware—balancing link performance, SWaP-C, ruggedness, and manufacturability across our aircraft product lines. This is a hands-on, full-time role with end-to-end ownership: define link budgets and RF architecture, design and simulate antennas, perform EMI and cosite analyses, build prototypes, execute chamber and over-the-air testing, and release production-ready documentation. Over time, you will expand from aircraft RF systems into the design and integration of Firestorm’s internally developed RF payloads—sensors and effects that broaden the mission set of our aircraft. What You'll Do Design, simulate, and integrate antennas (HF through X-band) for command & control, telemetry, GNSS, video, and payload links on Firestorm’s sUAS platforms. Develop RF link budgets, frequency plans, and end-to-end RF system architectures across aircraft and payload configurations. Perform EMI/EMC analysis and cosite/intermodulation analysis to ensure compatible coexistence of multiple emitters and receivers on densely-populated airframes. Lead antenna integration trades—placement, pattern coverage, polarization, and structural co-design with airframe and mechanical engineering. Plan and execute RF testing—anechoic chamber pattern measurements, S-parameter characterization, EMI/EMC scans, range testing, and flight test verification—per MIL-STD-461, MIL-STD-464, DO-160, and applicable customer requirements. Lead the RF design and integration of internally developed payloads, including signals intelligence, electronic warfare, and communications relay capabilities. Generate and maintain RF engineering documentation: block diagrams, interface control documents, link analyses, test reports, and configuration baselines. Interface with vendors and customers as the technical lead for antenna, radio, and RF payload selection, qualification, and procurement. Support fielding and test events—traveling to test sites and customer locations to validate RF performance in operational conditions. Participate in design reviews and provide RF subject matter expertise across the broader hardware program. Required Qualifications Bachelor’s degree in Electrical Engineering or a related field (Master’s degree preferred) 5+ years of experience in RF and antenna engineering, preferably in the aerospace, defense, or wireless communications industry Proficiency in electromagnetic simulation tools (HFSS, CST, FEKO, or AWR) for antenna and RF circuit design Hands-on experience with RF test equipment including vector network analyzers, spectrum analyzers, signal generators, and anechoic chamber measurements Working knowledge of antenna design and integration across HF through microwave bands Familiarity with EMI/EMC analysis and applicable standards (MIL-STD-461, MIL-STD-464, DO-160) Experience with cosite interference analysis, frequency planning, and RF link budget development Proficiency in Python or MATLAB for RF data analysis, measurement automation, and signal processing Excellent problem-solving skills and attention to detail Strong communication and teamwork skills Ability to work in a fast-paced and dynamic startup environment U.S. Citizenship and ability to obtain and maintain a U.S. Government security clearance. Work Environment This role is based in San Diego, CA. We welcome candidates who are local or open to relocating; relocation assistance is available and may be included in the offer package where appropriate. Domestic Travel up to 2 total weeks, in support of test events. This position typically operates in a standard office setting and manufacturing environment. This role requires use of standard office equipment and the physical demands described here are representative of those that must be met to successfully perform the essential functions of the job. Ability to sit, stand, bend, reach and move about regularly throughout the day. Must have manual dexterity to operate standard office equipment. Compensation US Salary Range: $115,000 – $135,000 USD. The posted salary range reflects an estimate based on a variety of compensation factors, including but not limited to relevant experience, education, certifications, specialized skills, geographic location, and business needs. Actual compensation may vary, and this range is subject to change as our compensation structure or market conditions evolve. Benefits & Perks Our culture fosters collaboration, respect, and trust, empowering passionate people to do their best work. We offer a competitive salary, comprehensive benefits, and opportunities for career growth. In addition to an opportunity to take part in an innovative, collaborative and fast-growing business with a highly motivated and skilled team, we also take pride in taking care of our employees. Here are just a few ways that we show our appreciation: We offer comprehensive medical, dental, and visions plans 401(k) Retirement Savings Plan to invest in your long-term retirement goals Equity grants for new hires Unlimited PTO Extremely generous company holiday calendar, including a holiday hiatus in November, & December. Generous Parental Leave Lifestyle Spending Account FSA DCFSA HSA Hospital Indemnity insurance Critical Illness insurance Accident insurance Basic Life/AD&D, short-term and long-term disability insurance, 100% covered by Firestorm. Plus, the option to purchase additional life insurance for you and your family. Mental Health Resources: We provide free mental health resources 24/7 including therapy and more. Additional work-life services, such as free legal and financial support, are available to you as well. Export Control Compliance To conform to U.S. government export control regulations, including the International Traffic in Arms Regulations (ITAR) and Export Administration Regulations (EAR), you 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 otherwise eligible to obtain the required authorizations from the U.S. Department of State or U.S. Department of Commerce. Equal Opportunity Statement Firestorm is an equal opportunity employer, committed to creating a diverse and inclusive workplace, and upholding equitable hiring practices. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, or any other characteristic under federal, state, or local law, including those with a criminal history, in a manner consistent with the requirements of applicable state and local laws, including the CA Fair Chance Initiative for Hiring Ordinance. We actively encourage members of recognized minorities, women, Veterans, and those with disabilities to apply, and we work to create a welcoming and supportive environment for all applicants throughout the interview process. Firestorm is committed to fostering an inclusive and accessible work environment. If you require accommodations or assistance during the application process, please don’t hesitate to reach out to us at [email protected] so we can provide the support you need.