Electrical Engineer

Description Primary

Work Location:

Fredericksburg, VA / Remote Hybrid Must be a U.S Citizen:
Yes Clearance:
Ability to obtain and maintain active Secret clearance (PCL) and the ability to obtain a clearance up to Top Secret (PCL) if later needed. Job Summary

Obsidian Solutions Group is seeking a skilled Electrical Engineer to support the continued development, integration, and field testing of the SensXR system—a modular, multi-threat detection platform. This engineer will contribute to the full lifecycle of embedded hardware, including circuit design, signal conditioning, sensor interfacing, and power optimization. The ideal candidate will be proficient in simulation and modeling tools to support iterative prototyping and rigorous system validation in support of DoD CBRNE applications.

• Sensor & Circuit Integration:
  Design, simulate, and validate electronic subsystems for gas, radiation, GPS, and compute modules. Interface analog and digital sensors with embedded processors, while ensuring EMI/EMC compliance and environmental durability.
• Power Systems Engineering:
  Develop and optimize low-power battery-operated systems using both internal and external configurations. Implement efficient power regulation and battery management systems for wearable platforms.
• Embedded Systems & RF Communications:
  Integrate and optimize communication modules. Develop and simulate custom PCB designs for embedded applications.
• Modeling & Simulation:
  Utilize MATLAB/Simulink for algorithm prototyping and system-level simulation. Use PSpice or equivalent SPICE tools for transient and steady-state circuit analysis. Employ Altium Designer for schematic capture and multilayer PCB layout.
• Prototyping & Rapid Development:
  Support iterative development of compact and ruggedized electronics suitable for tactical field deployment. Collaborate mechanical engineers to ensure enclosure and cable routing compatibility.
• AR Display & HMI Integration:
  Assist in the electrical interface between the SensXR modules and AR devices via USB-C, power-over-cable, or wireless systems, ensuring reliable power and data interfacing.
• Field Support & Data Validation:
  Participate in field exercises to validate system performance under real-world stressors including temperature, humidity, and vibration. Gather and analyze sensor logs, power draw, and communication fidelity.
• Documentation & Compliance:
  Produce detailed design documentation, test procedures, wiring schematics, and SOPs.

• B.S. or higher in Electrical Engineering, Mechatronics, or related discipline.
• 3+ years of experience in circuit design, embedded systems, and power systems.
• Proficiency in MATLAB/Simulink, Altium Designer, and PSpice or equivalent EDA tools.
• Experience designing for low-SWaP embedded systems and ruggedized field electronics.
• Familiarity with microcontrollers and embedded programming.
• Experience with RF modules, antenna integration, and board-level debugging.
• Strong technical writing skills for engineering documentation and reports.
• Ability to collaborate effectively in a multidisciplinary team environment.

• Familiarity with AI/ML edge processing (e.g., ESP
  32, NVIDIA Jetson Nano, Google Coral).
• Understanding of GPS-RTK and IMU/dead reckoning integration.
• Prior exposure to head-mounted display systems or wearable electronics design.
• Hands-on experience with PCB manufacturing and hardware bring-up.

• Hybrid role with on-site prototyping and test event support.
• Must be comfortable working in lab environments and with hands-on instrumentation.

• Travel up to 15% for field validation and test events.

Obsidian Solutions Group LLC (OSG) is a fast-growing professional services firm based in Fredericksburg, VA. We create value for our customers by delivering technology-enabled & mission-oriented technical solutions that solve complex problems, protecting people, information, and assets. Our core capabilities are in providing Enterprise IT, Intelligence Analysis, Production & Development and Knowledge-Based Professional Services Solutions that enable the…