SECTION I · THE BRIEF
Brief #69103Updated 22 AUG 2026SAN MATEO, CAYc
Employbl Company Profile

Founding RF Engineer

Nine Fives is hiring a Founding RF Engineer in San Mateo, CA. Full brief — comp band, interview process, and hiring team — available to Employbl members.

Location
San Mateo, CA
Company size
Posted
6d ago
Via
Yc
Section II · Premium ProfileMembers only
  • 01Comp band & equity packageLocked
  • 02Seniority & experience requirementsLocked
  • 03Interview process & rubricLocked
  • 04Hiring manager & team contextLocked
  • 05Growth trajectory in this roleLocked
  • 06Offer & decision timelineLocked

7-day free trial · $25/mo · cancel anytime

Nine Fives logo

Founding RF Engineer · Nine Fives

View company profile
Job title
Founding RF Engineer
Job location
San Mateo, CA, US
Job description
Nine Fives produces modern radio frequency test equipment and solutions to disrupt the $130B test equipment industry. By combining modern electronics, AI ready test automation, and strategic supply chains, we’re equipping our customers to cut their time to market in half. ## About the role: This is a full time salaried position. Compensation is $170,000 - $200,000/yr + equity & benefits.  As a Founding RF Engineer you will own products from cradle to grave. You will work with our founding team to develop the next generation of electronic test equipment.  ## Responsibilities: * Define product requirements and synthesize into schematics  * Perform component selection and BOM optimization * Schematic design and routing for digital and analog PCBs * Perform bringup and characterization of prototype PCBAs * Write and maintain a common embedded linux software stack across products ## Basic Qualifications: * Bachelor's degree in electrical engineering or similar.  * 3+ years experience with Altium, KiCAD, or other industry standard EDA tool sets. * 2+ years experience performing analysis with ADS or Microwave Office * 2+ years experience performing analysis with HFSS or CST studio * 2+ years experience with common RF lab equipment like spectrum analyzers, signal generators, and network analyzers. ## Preferred Skills and Experience: * Masters degree in electrical engineering with a focus on Radio Frequency Hardware design * Experience designing PCBAs with high speed interfaces such as DDR and/or ethernet * Experience designing RF PCBAs (LNAs, Power Amplifiers, couplers, feed networks or similar). * Experience designing medium-complexity switch mode power supplies (buck, buck-boost, flyback). * Familiarity with common interfaces for networking test equipment (SCPI, VISA, HiSlip, LXI, RESTful API) and basic knowledge of underlying network stack (IP, TCP, UDP, DNS, DHCP). * 2+ years experience working on embedded Linux based systems (especially buildroot based) * 2+ years experience with Python, Go, or C/C++ development. ## Additional Requirements: * Some travel may be required * Role is in-person, 5 days a week. * Weekend work is neither required nor expected. Nine Fives is an equal opportunity employer.
View job listing ↗
The Saturday Briefing

Get the Saturday tech briefing

New company profiles, funding moves, and who’s hiring across the market — every Saturday morning.

Where this role is based

San Mateo, CA

Loading map…

Nine Fives headquarters

View company profile ↗