Senior RF Hardware Engineer

Doodle Labs•Austin, TX

About The Position

The Senior RF Hardware Engineer is responsible for hands-on RF circuit design for variants of Doodle Labs’ radio platforms and will help build its new US-based RF hardware design team in Austin, Texas. Working closely with the RF Design Manager, the Singapore R&D team, and product engineering, the engineer will design, simulate, and validate higher-power and new-form-factor radio modules. The role owns RF designs end to end, from schematic through production, and contributes to the next generation of Doodle Labs radio hardware. The position involves designing RF front ends and power amplifiers up to 20 W linear below 7 GHz, along with supporting power, digital, and I/O circuitry. The engineer leads RF simulation and validation before and after fabrication, develops compact designs supporting multiple frequency bands and configurations, and directs the RF Characterization Engineer on builds, parts selection, and testing. The role also collaborates with teams across Singapore R&D, PCB layout, mechanical, and product engineering, and produces design and test documentation. The role may require up to 10% travel for collaboration with the Singapore R&D team, field testing, or industry events. Doodle Labs offers competitive base compensation, individual and company performance bonuses, and a comprehensive benefits package.

Requirements

At least 8 years of experience in board-level RF hardware design for wireless systems.
Expert-level RF circuit design at the component or transistor level, beyond block-level integration or PCB layout alone.
Hands-on RF design experience below 7 GHz, including power amplifier design up to 20 W linear.
Strong understanding of supporting circuitry, including power conditioning, DC/DC and AC/DC converters, digital logic, I/O, USB, and Ethernet, and how to simulate it.
Experience with RF simulation, performance validation, and high-frequency PCB layout.
Track record of taking RF products from prototype to production.
Bachelor’s or master’s degree in Electrical Engineering, RF Engineering, or a related field.
Ability to work cross-functionally with technical and non-technical teams.
Excellent communication, problem-solving, and organizational skills.
Experience working in fast-paced or high-growth environments.

Nice To Haves

Experience in drones, robotics, autonomy, wireless networking, or defense markets.
RF circuit design experience at a Wi-Fi or long-range wireless hardware company.
Background in high-power RF design, such as land mobile radio or similar communications products.
Experience working with OEMs, embedded systems, or hardware products.
Familiarity with RF simulation tools such as Keysight ADS or AWR Microwave Office, and RF test equipment.
Exposure to Wi-Fi, BLE, GPS, or high-power amplification design.
Advanced degree or specialized certifications.

Responsibilities

Own and drive hands-on RF circuit design for radio platform variants, including higher-power versions and new form factors.
Design component-level RF front ends and power amplifiers up to 20 W linear, below 7 GHz.
Simulate and design supporting circuitry, including DC power conditioning, AC/DC and DC/DC converters, digital interfaces, I/O, USB, and Ethernet.
Lead RF simulation and validation testing before and after hardware fabrication.
Develop compact, scalable designs supporting multiple frequency bands and product configurations.
Direct the RF Characterization Engineer on builds, parts selection, and testing.
Collaborate with Singapore R&D, PCB layout, mechanical, and product engineering teams.
Produce schematics, design rationale, and test documentation, and contribute to design reviews.
Support validated radio module variants through production readiness and smooth production transfers.