FormFactor

Sr Principal RF Engineer

FormFactor$115K — $151K *
Telecommunications & Hardware
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • MS or PhD in Electrical Engineering, Physics, or related field, or equivalent experience
  • 10+ years of experience specializing in RF or high-speed digital physical-layer design
  • Proficiency with EM simulation tools (HFSS, ADS, AWR)
  • Extensive experience with RF measurement techniques (VNA, TDR, wafer-level RF)
  • Background in PCB design with understanding of fabrication constraints

Responsibilities

  • Design advanced RF and high-speed digital interconnect structures using simulation methodologies
  • Perform system-level RF circuit design for matching networks and power delivery
  • Develop and optimize electromagnetic simulation models using industry-standard software
  • Create detailed circuit-level models and validate them against lab measurements
  • Lead hands-on evaluation with high-frequency test equipment and mentor junior engineers
  • Contribute to next-generation RF calibration methodologies
  • Serve as a technical expert influencing product architecture and roadmaps

Benefits

  • Medical, dental, and vision insurance
  • Life insurance and disability coverage
  • 401(k) plan with company match
  • Employee stock purchase plan (ESPP)
  • Paid time off and flexible spending accounts
  • Quarterly profit-sharing bonuses
Full Job Description
Shift:
The regular hours for this position are day shift.

Job Description:

FormFactor's RF Products group works closely with leading semiconductor manufacturers to solve advanced test and validation challenges. Our technologies directly enable next-generation wireless and high-speed communication systems-including 5G and mmWave modems, ultra-high-speed I/O interfaces, and RF solutions exceeding 100 GHz.

We are seeking a Sr. Principal RF Engineer with deep expertise in RF, high-speed digital, and electromagnetic design. In this senior technical role, you will lead complex design initiatives, drive simulation-based development, mentor junior engineers, and contribute to next-generation RF product architectures.

Key Responsibilities:

High-Frequency / High-Speed Electrical Design
  • Design advanced RF and high-speed digital physical-layer interconnect structures using simulation-driven design methodologies.
  • Perform system-level RF circuit design, including matching networks, transmission line structures, and power delivery architectures.
  • Develop, refine, and optimize electromagnetic (EM) simulation models using industry-standard tools.


Modeling, Simulation, and Validation
  • Create detailed EM and circuit-level models; perform correlation between simulations and laboratory measurements.
  • Conduct power-integrity simulations of complex power-delivery networks (both DC and AC domains).
  • Automate simulation workflows to improve repeatability, speed, and data accuracy.


Hands-On RF Test & Measurement
  • Lead hands-on evaluation using VNAs, TDRs, spectrum analyzers, wafer probers, and other high-frequency instrumentation.
  • Mentor engineering teams on measurement best practices, calibration methods, and data analysis.
  • Contribute to the development and refinement of next-generation RF calibration methodologies (e.g., SOL, SOLR, SOLT, multiline TRL).


Technical Leadership & Collaboration
  • Serve as a senior technical expert, influencing architecture decisions and long-term product roadmaps.
  • Collaborate with cross-functional teams-including mechanical, process, and product engineering-to optimize product performance and manufacturability.
  • Provide technical mentorship to engineers across the RF product group and broader organization.


Preferred Education and Experience:
  • MS or PhD in Electrical Engineering, Physics, or a related field (or equivalent industry experience).
  • 10+ years of electrical engineering experience with significant focus on RF or high-speed digital physical-layer design.
  • Strong proficiency with EM simulation tools such as HFSS, ADS, AWR, and related modeling software.
  • Extensive experience using RF measurement techniques, including VNA, TDR, and wafer-level RF measurements.
  • Background in PCB design and understanding of fabrication constraints and signal-integrity considerations.
  • Familiarity with on-wafer RF calibration techniques (SOL, SOLT, SOLR, TRL).
  • Working knowledge of wireless, radar, or digital communications standards (e.g., 5G, Wi-Fi, Bluetooth, PCIe) is a plus.
  • Experience in automation, data processing, or scripting (e.g., Python, MATLAB) is beneficial.


Skills:
Digital Communications, High Frequency Structure Simulator (HFSS), MATLAB, Python (Programming Language), RF Calibration, RF Measurements

Education & Experience:
Minimum of 8 years of related experience with a Bachelor's degree; or 6 years and a Master's degree; or a PhD with 3 years experience; or equivalent experience | Required

Pay Range:
$115,800.00 - $151,935.00

Pay Range Explained:
This role in Beaverton, Oregon pays between $115,800.00 and $151,935.00 per year, depending on your experience, skills, and background. Pay may vary in other locations. We offer a full benefits package, including medical, dental, vision, life insurance, disability coverage, a 401(k) with company match, employee stock purchase plan (ESPP), and paid time off. You'll also be eligible for quarterly profit-sharing bonuses and flexible spending or savings accounts.

About FormFactor

FormFactor, Inc. is a leading provider of essential test and measurement technologies along the full IC life cycle ? from characterization, modeling, reliability, and design de-bug, to qualification and production test. Semiconductor companies rely upon FormFactor?s products and services to accelerate profitability by optimizing device performance and advancing yield knowledge. The Company serves customers through its network of facilities in Asia, Europe, and North America. FormFactor is headquartered in Livermore, California with operations worldwide.
Learn more about FormFactor
Size
2,293 employees
Market Cap
$1.7 billion
Industry
Net Income
$78.5 million
Founded
1995
5 Year Trend
+14.9%
Revenue
$693.6 million
NASDAQ

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