Senior RF Design Engineer

Posted 6 Hours Ago
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Redwood City, CA, USA
In-Office
150K-170K Annually
Senior level
Aerospace
The Role
Design and validate RF electronics for radar sensors, including low-noise receive chains, high-power transmit chains, switching/protection, timing-critical subsystems. Lead schematic capture, prototyping, bring-up, characterization, qualification, and cross-disciplinary integration. Perform design trade studies, testing, iteration, and mentor other engineers.
Summary Generated by Built In
Array Labs builds advanced radar systems to help humanity understand and respond to changes across the physical world. 
 
We’re launching a coordinated fleet of radar satellites to create a high-resolution 3D map of the Earth – updated in real time – enabling faster, smarter decision-making for government and commercial organizations supporting disaster response, infrastructure resilience, and mission-critical geopolitical intelligence.
 
We design and build our satellites end-to-end, producing the world’s most advanced earth observation satellites. Our fleet will deliver unprecedented levels of accuracy, coverage, and responsiveness to power critical insights precisely where they’re needed most.
 
About the Job
As a Senior RF Design Engineer, you will design and validate the RF electronics that enable Array’s radar sensors. Your work will include low-noise receive chains, high-power transmit chains, RF switching and protection, bias and control circuitry, and integration of transceiver and timing-critical RF subsystems.
 
You will take hardware from schematic design through prototyping, bring-up, characterization, and qualification, working closely with antenna, mixed-signal, mechanical, and systems engineers. The RF hardware you develop will directly impact signal quality, sensitivity, output power, stability, and overall on-orbit performance.
 

Responsibilities

  • Develop advanced RF electronic subsystems, from architecture to manufacturing
  • Work closely with RF systems, antenna, mixed-signal, mechanical, firmware, and test engineers to design and validate state-of-the-art radar sensor hardware
  • Own RF subsystem definition and design trade studies, balancing noise figure, linearity, output power, stability, spurious performance, and power consumption
  • Select components, capture schematics, and design complex RF assemblies including receive and transmit chains, switching networks, filtering, and protection circuitry
  • Lead prototyping, hardware bring-up, debug, characterization, and test campaigns for RF electronics
  • Rapidly iterate on and improve RF designs based on laboratory and environmental testing
  • Provide technical leadership through design reviews, risk reduction planning, and mentorship of other engineers

Basic Qualifications

  • B.S. in Electrical Engineering, or a related field with 4-7 years of relevant experience
  • Experience in electronics design, bring-up, and test
  • Excellent teamwork and communication skills
  • Learns new concepts rapidly, completely, and in a self-directed manner
  • High levels of self-motivation and personal accountability
  • Ability to work in a fast-paced environment under significant time constraints

Preferred Skills and Experience

  • Master’s degree or Ph.D. in electrical engineering, applied physics, or a related field
  • Strong background in electromagnetic theory and RF fundamentals such as S-parameters, transmission lines, stability analysis, and impedance matching
  • Hands-on experience designing high-performance RF hardware including LNAs, PAs/driver chains, mixers, switches, filters, couplers, and protection circuitry
  • Experience with frequency synthesis and timing-critical RF subsystems including PLLs, VCOs, references, and low-jitter clock distribution
  • Experience with RF modeling, simulation, and analysis tools such as ADS, Microwave Office, and/or HFSS
  • Experience with schematic capture and design using CAD tools such as Altium Designer (preferred); experience with Allegro and/or OrCAD is a plus
  • Hands-on experience with RF test and characterization equipment such as VNAs, spectrum analyzers, signal generators, power meters, and phase noise measurement
  • Experience with EMC requirements and EMI mitigation techniques in mixed-signal and RF systems
  • Experience taking RF hardware from prototype through qualification and environmental testing, including working with manufacturing partners and test teams

ITAR Requirements
To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) 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 eligible to obtain the required authorizations from the U.S. Department of State
 
Equal Opportunity Employer
Array Labs is an Equal Opportunity Employer. Employment decisions are made on the basis of merit, competence, and job qualifications and will not be influenced in any manner by gender, color, race, ethnicity, national origin, sexual orientation, religion, age, gender identity, veteran status, disability status, marital status, mental or physical disability or any other legally protected status
 
Interview Process
We will conduct three interviews via Zoom; the typical process takes around 3-5 weeks to complete from start to finish.
 
Hiring and Compensation Strategy
Our hiring and compensation strategy is simple:
 
1) find uncommonly good people
2) pay them uncommonly well
 
You can anticipate competitive pay, generous equity, and high flexibility between salary and equity-based compensation.
 
Why Join Array
At Array Labs, deep technical expertise meets relentless impact. We prioritize curiosity over hierarchy and bold engineering over incremental gains. Our world-class team across hardware engineering, software, and aerospace works collaboratively to push boundaries and move fast.
 
Our values:
1. Build What Matters: Create technology that serves customers and advances humanity
2. Innovate Together: Stay curious, collaborate openly, push boundaries as one team
3. Employee Centric: Put our people first with a culture of trust, respect, and opportunity
 
Join industry-leading experts to deliver unprecedented insights about our planet and build the future of Earth observation.
 

Skills Required

  • B.S. in Electrical Engineering or related field with 4-7 years of relevant experience
  • Experience in electronics design, bring-up, and test
  • Excellent teamwork and communication skills
  • Ability to learn new concepts rapidly and work in a self-directed manner
  • High self-motivation and personal accountability
  • Ability to work in a fast-paced environment under significant time constraints
  • Must be a U.S. citizen, lawful permanent resident, protected individual, or eligible to obtain required U.S. Department of State authorizations (ITAR requirement)
  • Master's or Ph.D. in electrical engineering, applied physics, or related field
  • Strong background in electromagnetic theory and RF fundamentals (S-parameters, transmission lines, stability analysis, impedance matching)
  • Hands-on experience designing LNAs, PAs/driver chains, mixers, switches, filters, couplers, and protection circuitry
  • Experience with frequency synthesis and timing-critical RF subsystems (PLLs, VCOs, references, low-jitter clock distribution)
  • Experience with RF modeling, simulation, and analysis tools such as ADS, Microwave Office, and/or HFSS
  • Experience with schematic capture and PCB design tools such as Altium Designer (preferred); Allegro and/or OrCAD a plus
  • Hands-on experience with RF test and characterization equipment (VNAs, spectrum analyzers, signal generators, power meters, phase noise measurement)
  • Experience with EMC requirements and EMI mitigation techniques in mixed-signal and RF systems
  • Experience taking RF hardware from prototype through qualification and environmental testing, including working with manufacturing partners
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The Company
HQ: Palo Alto, CA

What We Do

High quality 3D imagery is the key to understanding the world around us and is critically important to a host of traditional and emerging industries. However, current methods of supplying this data are slow, expensive, or low-quality. Array Labs is developing next-generation earth observation satellites which will deliver a complete perspective of the earth in near-real time.

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