Sr. RF Design Engineer — Radar Hardware & Systems

Arraylabs.Io; Redwood City (CA); On-site; USD 140,000 - 210,000; Full time

Job summary

Array Labs is seeking a Senior RF Design Engineer to design and validate RF electronics for radar sensors. You will contribute to low-noise receive chains, high-power transmit chains, RF switching, and timing-critical subsystems, taking hardware from schematic to qualification.

You will lead design trades, select components, and work with antenna and systems teams to ensure performance targets. The role requires strong RF fundamentals and hands‑on testing in a fast‑paced environment.

Qualifications

• BS in Electrical Engineering or related field with 4–7 years of relevant experience.
• Experience in electronics design, bring‑up, and test.
• Strong background in RF fundamentals and EMI mitigation.

Responsibilities

• Develop advanced RF electronic subsystems from architecture to manufacturing.
• Collaborate with RF systems, antenna, mixed-signal, and mechanical teams to validate radar sensor hardware.
• Lead design trade studies balancing noise figure, output power, stability, and power consumption.
• Oversee prototyping, bring-up, characterization, and test campaigns.

Skills

RF design

S-parameters

EM theory

teamwork

communication

self-motivation

clock distribution

design reviews

keep to schedule

Education

BS in Electrical Engineering

MS or PhD in EE / related field

Tools

ADS

Microwave Office

HFSS

Altium Designer

Allegro / OrCAD

VNAs

Job description

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.

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

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

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.