Senior Specialist, RF/Wireless Engineer

L3Harris Technologies•Carlsbad, CA

1d•$111,500 - $207,500•Onsite

About The Position

L3Harris is seeking an RF/Wireless design engineer with industry experience in high-power amplifier design. The role supports advanced wireless digital communication and electronic warfare systems, with development work spanning the full design lifecycle: proposals, requirements definition, simulation, synthesis, place and route, and verification testing. The engineer will work with a team of engineers and also contribute independently. The position develops high-power RF power amplifiers for fast-hopping military communications across L-band through C-band, with RF output power from 8 W to 200 W. It includes evaluating and modeling RF technologies, designing and simulating nonlinear high-power RF systems, supporting transmitter and receiver design, and integrating radio solutions across engineering disciplines. The role also involves hands-on lab bring-up, debugging, characterization, and performance optimization.

Requirements

Active U.S. Secret security clearance.
Bachelor's degree in Electrical Engineering and at least 6 years of prior RF discrete power amplifier design experience; or a graduate degree in Electrical Engineering and at least 4 years of such experience; or, in lieu of a degree, at least 10 years of prior discrete power amplifier design experience.

Nice To Haves

Solid foundation in analog electronics, RF transmission lines, and RF layout practices.
Experience across the full high-efficiency power amplifier development cycle, including device selection, evaluation and modeling, circuit design, linear and nonlinear simulation, PCB layout, electromagnetic and parasitic extraction, lab bring-up, debugging, and optimization.
RF design experience spanning approximately 0.9 MHz to 6 GHz, with a strong understanding of higher-frequency effects.
Knowledge of RF device biasing, temperature compensation, RF dependencies, nonlinear behavior, compensation methods, and transmitter linearization techniques.
Experience designing and integrating RF components including power amplifiers, low-noise amplifiers, switches, filters, couplers, and limiters.
Experience with industry-standard RF design tools, including Keysight ADS and HFSS.
Hands-on experience with RF test and measurement equipment, including spectrum analyzers, network analyzers, and RF signal generators.
Switching power supply design experience.

Responsibilities

Develop high-power RF power amplifiers for fast-hopping military communications applications across L-band through C-band, with RF output power ranging from 8 W to 200 W.
Evaluate, select, characterize, and model RF transistor and amplifier technologies, including GaAs HBT, GaN HEMT, CMOS, and SiGe.
Design and simulate nonlinear, high-power RF systems using Keysight ADS and HFSS, including PCB parasitic extraction and electromagnetic analysis.
Develop temperature-compensated bias circuits and perform multi-loop stability analysis.
Design wideband and multi-band matching networks using lumped and distributed elements.
Support complete transmitter and receiver RF design, including power amplifiers, switches, filters, low-noise amplifiers, directional couplers, and limiters.
Perform RF cascade analysis and assess system gain, noise figure, linearity, and performance tradeoffs.
Collaborate with Systems, RF/Analog, Digital, and Firmware Engineering teams to integrate complete radio solutions.
Lead lab bring-up, debugging, characterization, and performance optimization using spectrum analyzers, RF signal generators, and network analyzers.
Contribute to RF PCB layout, transmission-line design, analog circuitry, operational amplifier circuits, and basic switching power-supply design.