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Hermeus

Senior RF Systems Engineer

Los Angeles, CA
Salary
USD 138,550 - 187,450 / per-year-salary
Level
Senior
Work type
On-site · Los Angeles

Not stated in the posting: visa.

Open. First seen 9 September 2026.

About the role

Hermeus's standard text

Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage.

About The Role:

As an RF systems engineer you will be responsible for identifying RF hardware requirements, creating system architectures, and building/testing/integrating the RF solutions – both on the aircraft and ground station. This position will require strong fundamentals, wide-breadth design experience, and efficient troubleshooting skills. You’ll be responsible for high-ownership technical delivery while working with a multi-disciplinary team of engineering, manufacturing, and quality professionals.

Responsibilities

  • Simulate/model RF hardware for communication systems and sensors/instruments.
  • Develop test concepts and test procedures for RF and Environmental testing, including far field and near field measurements (plus vibration, shock, thermal and thermal vacuum).
  • Define hardware architecture and specifications for the RF system blocks, interfaces, and housing. Design, build and test microwave circuits and assemblies.
  • End-to-end design validation and testing of RF product performance. Lead and conduct troubleshooting or root cause hardware performance challenges.
  • Work with manufacturing and production teams on procuring and integrating quality RF module and antenna subsystems into our aircraft.
  • Perform data analysis of RF systems, generate documentation/slides and present results to team.

Requirements

  • Bachelor's degree in electrical engineering or related discipline.
  • 4+ years of professional experience designing and testing electrical, antenna and/or RF hardware and systems.
  • Experience with RF/Antenna Systems in L/S/C/Ku and Ka-Band frequencies.

Preferred Skills and Experience

  • Demonstrated experience working collaboratively in cross-functional teams.
  • Strong troubleshooting and problem diagnostic skills
  • Understanding of electromagnetic propagation, impedance matching, Smith Chart, VSWR, P1dB, IIP3, NF, and etc.
  • Understanding of digital modulation such as QAM, BPSK, QPSK, and SOQPSK or similar.
  • Experience working with VNA, spectrum analyzers, RF power meters, and other relevant RF test equipment.
  • Experience with test equipment automation and scripting
  • Strong hands-on skills including prototyping/soldering and the use of a full range of instrumentation including multimeters, oscilloscopes, current meters, etc
  • Support ongoing regulatory filling including FCC, FAA, and AFTRCC.
  • Previous Experience on Integration and Test of an RF Systems (of any kind) with Radio as an integral part of RF Systems.
  • Master's degree with emphasis in Antenna, Electromagnetic theory and/or microwave circuits.
  • Experience using in HFSS (or similar antenna simulation tools).
  • Familiarity with Antenna design, including types and tradeoffs.
  • EMI/EMC testing per MIL-STD-461.
  • Prior experience working on an airborne vehicle.
  • Experience in a startup or agile development environment.
  • Experience with Python or other scripting languages to aid automation, data analysis, etc
  • Ability to travel on short notice to support test campaigns

The salary range listed for this role is intended as a general guideline. Final compensation will be determined based on a variety of factors, including role scope and responsibilities, relevant experience, education and training, key skills, market data, and business needs.

At Hermeus, compensation is only one part of our total rewards package. We offer competitive pay, equity, and a range of benefits designed to support our team.

Benefits:

  • Health & Wellness: 100% employer-paid healthcare and pet insurance
  • Financial: Competitive pay, stock options, 401(k) retirement plan, and potential year-end bonuses
  • Time Off: Paid parental leave, 12 federal holidays, unlimited PTO for exempt employees, and generous accrued PTO for non-exempt employees
  • Office Perks: Weekly paid office lunches and fully stocked breakrooms
Hermeus's standard text

U.S. EXPORT CONTROL COMPLIANCE STATUS

The person hired will have access to information and items subject to U.S. export controls, and therefore, must either be a “U.S. person” as defined by 22 C.F.R. § 120.62 or otherwise eligible for deemed export licensing. US persons include U.S. citizens, U.S. nationals, lawful permanent residents (green card holders), and asylees and refugees with such status granted, not pending.

EQUAL OPPORTUNITY

Hermeus is an Equal Opportunity Employer. Employment decisions at Hermeus are based solely on merit, competence, and qualifications, without regard to race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability, or any other legally protected status.

#LI-JC3

What this role asks for

Particular to this role

Agile

Rare in Hermeus's other 67 open postings.

Standard for software engineering roles

Python

Common in software engineering postings at any company.

74% of this description is written for the role. The rest is Hermeus's standard text, folded away below.

Read against Hermeus's other open postings on this site.

The team: Avionics Hardware HIRES STEADILY

This role is one of 10 open in Avionics Hardware. 5 were posted in the last 30 days and the oldest in September: a team that hires all year rather than one being built.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

Altium (5 of 10), Python (5 of 10), Siemens NX (5 of 10), ANSYS (4 of 10), Git (4 of 10), FPGA (3 of 10), Agile (2 of 10)

OTHER ROLES ON THIS TEAM

From the team and dates on Hermeus's own job board.

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