Senior RF Design Engineer

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. ### 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