RF Engineer IV/V/VI

Zone 5 Technologies

$155K — $284K *
Aerospace & Defense
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • B.S. in Electrical Engineering, Computer Engineering, or related discipline.
  • 7+ years of experience in RF system design, analysis, or integration.
  • Strong experience with RF architectures including transceivers and antenna integration.
  • Familiarity with MANET radios like Silvus or similar.
  • Proficiency with RF modeling and simulation tools such as HFSS or CST.
  • Understanding of TCP/IP and other transmission protocols.
  • Programming experience in MATLAB, Python, or C/C++ for data analysis.

Responsibilities

  • Design and integrate RF and antenna systems across various frequency bands.
  • Define RF system requirements and make architecture decisions based on feasibility studies.
  • Perform analysis on RF link budgets and chain performance.
  • Develop and validate RF models and simulation performance.
  • Support the testing and qualification of wireless communication systems.
  • Debug RF issues including noise sources and interference interactions.
  • Integrate RF subsystems with avionics to ensure system performance.

Benefits

  • Competitive total compensation package
  • Comprehensive benefit options, including medical, dental, and vision.
  • 401k with company-match
  • 4 weeks of paid time off annually
  • 12 annual company holidays
Full Job Description
The RF Engineer leads the design, analysis, and integration of RF and antenna systems across Zone 5 products. This role is responsible for developing high-performance communication and RF architectures that operate reliably in complex electromagnetic environments.

You will work across the full lifecycle-from concept and trade studies through integration, test, and production-partnering closely with Electrical Engineering, Systems Engineering, Software, Integration, and Test to deliver robust, scalable RF solutions.

Key Responsibilities
  • Design, model, simulate, and integrate RF and antenna systems across multiple frequency bands and technologies.
  • Define RF system requirements and drive architecture decisions through analysis, trade studies, and feasibility assessments.
  • Perform RF analysis including link budgets, antenna patterns, RF chain performance, interference/desense, and installed system effects.
  • Develop and validate RF/data link models and communication performance simulations.
  • Conduct hardware and software trade studies to optimize RF system performance, robustness, and scalability.
  • Support design, prototyping, integration, and qualification of wireless communication systems.
  • Debug and characterize RF issues including noise sources, interference, and aggressor/victim interactions.
  • Integrate RF subsystems with avionics, payloads, and platform constraints to ensure end-to-end system performance.
  • Develop and maintain internal RF modeling, simulation, and analysis tools.
  • Support test activities including lab validation, ground testing, and flight test data analysis.
  • Present technical findings in design reviews (PDR, CDR, TRR) and leadership discussions.
  • Mentor junior engineers and contribute to RF engineering standards and best practices.


Qualifications

Required
  • B.S. in Electrical Engineering, Computer Engineering, or related discipline.
  • 7+ years of experience in RF system design, analysis, or integration.
  • Strong experience with RF architectures including transceivers, front-end design, and antenna integration.
  • Familiarization with MANET radios (e.g. Silvus, Persistent Systems, DTC, or similar).
  • Proficiency with RF modeling and simulation tools (e.g., HFSS, CST, ADS, or similar).
  • Experience performing RF system analysis (interference, system performance).
  • Strong understanding of TCP/IP, UDP, multicast, RTSP, and other transmission protocols, with the ability to perform link budget and data throughput analysis.
  • Hands-on experience with RF test equipment (spectrum analyzers, network analyzers, signal generators).
  • Programming or scripting experience (e.g., MATLAB, Python, C/C++, bash) for modeling and data analysis.
  • Strong troubleshooting skills in complex RF environments.
  • Ability to work cross-functionally and communicate effectively across IPTs.

Preferred
  • M.S. or Ph.D. in Electrical Engineering or related discipline.
  • Experience with Electronic Warfare (EW) or contested electromagnetic environments.
  • Familiarity with communication systems, signal processing, and data link design.
  • Experience with PCB design tools (e.g., Altium) and hardware implementation.
  • Understanding of antenna theory and real-world integration constraints.
  • Experience designing for manufacturability, cost, and production scalability.
  • Experience supporting flight test or deployed RF systems.
  • Active or eligible for U.S. DoD security clearance.

Pay Range by Level for San Luis Obispo, CA:

Level IV - $155k - $199k
Level V - $199k - $248k
Level VI - $248k - $284k

Pay range for this role

$155,000-$284,000 USD

What's in it for you:

Benefits:
  • Competitive total compensation package
  • Comprehensive benefit package options include medical, dental, vision, life, and more.
  • 401k with company-match
  • 4 weeks of paid time off each year
  • 12 annual company holidays

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