Senior Embedded RF Systems Engineer – Beamforming

Quest Defense; Phoenix, Northern (AZ, KY); Hybrid; USD 127,000 - 167,000; Full time

Benefits offered by this job

401(k) with employer match

Professional development support

Flexible, friendly workplace

Job summary

Quest Defense seeks a Senior Embedded Software Engineer to design, integrate, and test software for RFIO and RF systems. You’ll work with C/C++, Python, FPGA/firmware, and RF hardware to optimize performance, calibration, and fault-tolerant operation.

Based in Phoenix, AZ, on-site 3+ days a week, you’ll collaborate across RF, hardware, and software teams to deliver robust, high-reliability solutions for mission-critical programs.

Qualifications

• 5–15 years of embedded software and hardware/software integration.
• Strong C and C++ development skills.
• Experience interfacing with RF or mixed-signal hardware.
• Python for test automation, instrumentation, data collection, and analysis.
• Familiarity with DO-178B/C or similar software development standards.

Responsibilities

• Develop RFIO software interfacing embedded software/FPGA with RF subsystem hardware.
• Develop C/C++ software to configure, control, monitor, and characterize RF and mixed-signal devices.
• Implement multi-channel transmitter control, including phase alignment, beamforming, power/gain leveling, and programmable RF components.
• Develop receiver calibration and compensation techniques for gain, phase, sensitivity, temperature, and other RF variations.
• Integrate RF hardware with FPGA/firmware, embedded software, and system-level components.
• Interpret device datasheets and develop low-level register/configuration interfaces.
• Develop Python test and automation for laboratory equipment, RF testing, data collection, and analysis.
• Perform hands-on laboratory integration, characterization, measurement, troubleshooting, and debugging.
• Diagnose cross-domain issues involving software, FPGA/firmware, RF, and hardware.
• Work across RF, FPGA, hardware, systems, and software teams to resolve technical issues.
• Follow disciplined software processes for requirements, traceability, verification, validation, configuration management, and documentation.

Skills

C/C++ development

Python

Embedded software

RF hardware interfacing

FPGA/firmware

Test automation

Debugging across software/hardware

DO-178B/C familiarity

Education

Bachelor's degree in Electrical Engineering or related field

Tools

SPI/I2C/UART interfaces

FPGA interfaces

RF test equipment (oscilloscopes, spectrum analyzers)

Job description

Quest Defense seeks a Senior Embedded Software Engineer to design, integrate, and test software for RFIO and RF systems. You’ll work with C/C++, Python, FPGA/firmware, and RF hardware to optimize performance, calibration, and fault-tolerant operation.

Based in Phoenix, AZ, on-site 3+ days a week, you’ll collaborate across RF, hardware, and software teams to deliver robust, high-reliability solutions for mission-critical programs.