Embedded Systems Software Engineer (Hybrid- Aberdeen, Maryland)

Fairwinds Technologies, L • Newark, DE

2d • Hybrid

About The Position

We are seeking a highly skilled Embedded Systems Software Engineer to join our advanced communications and defense technology team. This role will focus on developing and integrating embedded software for next-generation Software Defined Radio Heads (SDRH) and multi-band RF systems supporting Department of War objectives and CMOSS/MORA standards. You will work on mission-critical systems enabling wideband RF operations (30 MHz – 6 GHz), antenna sharing, frequency translation, and digital IQ streaming for military environments.

Requirements

• Bachelor’s or Master’s degree in Electrical Engineering, Computer Engineering, or related field.
• 5+ years experience in embedded systems development for RF or SDR platforms.
• Proficiency in C/C++, Python, and embedded Linux development.
• Experience with Xilinx Zynq UltraScale+ SoCs, including PS and PL integration.
• Familiarity with RF concepts: LO tuning, bandwidth filtering, gain control, T/R switching.
• Hands-on experience with ADRV900x transceivers and related APIs.
• Knowledge of FPGA/DSP concepts: DUC/DDC, decimation/interpolation, NCO frequency shifts.
• Understanding of Ethernet-based control protocols, REST APIs, and real-time systems.

Nice To Haves

• Experience with MORA/CMOSS standards and modular RF architectures.
• Familiarity with high-power RF front-end design, antenna sharing, and isolation techniques.
• Knowledge of digital IQ streaming, serialization/deserialization, and high-throughput data handling.
• Background in defense communications systems and compliance with NTIA/DoD specifications.

Responsibilities

• Design, implement, and optimize embedded software for Zynq UltraScale+ SoCs, including ARM-based Processing System (PS) and FPGA-based Programmable Logic (PL).
• Develop drivers and control logic for Analog Devices ADRV900x transceivers supporting LO tuning, bandwidth configuration, gain control, and delay estimation.
• Implement RESTful APIs for system configuration and control (LO tuning, bandwidth, antenna selection, RSSI, gain tables).
• Integrate boot sequences and initialization routines for RF front-end components (RFFE), including T/R switches, attenuators, and power amplifiers.
• Collaborate with FPGA engineers to implement digital upconversion/downconversion (DUC/DDC), decimation/interpolation, and frequency shift logic in PL.
• Develop embedded software for real-time RF control, including dynamic LO frequency adjustments, bandwidth algorithms, and gain vs. frequency correction.
• Ensure compliance with NTIA spectral emission masks, transmit/receive isolation, and dynamic range requirements.
• Integrate with CMOSS/MORA frameworks, including MORA Signal Port Manager (MSPM) and orchestration APIs.
• Develop automated test scripts for embedded software validation and perform hardware-in-the-loop testing for RF signal paths and embedded control logic.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Number of Employees: 11-50 employees