Senior Firmware Engineer

Senior Firmware Engineer

Location: Charlotte, NC (Hybrid)

Contract Length: 12-Months

Type: W-2 (no C2C or C2H)

Rate: $60–$80/hr

Overview

A leading manufacturer in the energy storage and power electronics sector is seeking a Senior Firmware (Controls) Engineer to support the development and testing of embedded control systems for inverter-based solutions. This is a hybrid role based in Charlotte, NC, with occasional travel for certification and site support.

Key Responsibilities

• Develop and optimize embedded firmware in C for power electronic systems.
• Design and implement control algorithms for 3-level inverter architectures, including PID control and digital filtering.
• Integrate and troubleshoot ModbusTCP and SPI communication protocols.
• Support and contribute to UL1741-SA/SB compliance and certification testing.
• Simulate control behavior using PSIM and Matlab/Simulink.
• Utilize lab equipment such as oscilloscopes and power analyzers for validation and debugging.
• Maintain thorough test documentation and manage software version control.
• Collaborate cross-functionally with hardware and systems teams.

Ideal Background

• 10–12 years of experience in firmware development for embedded systems, ideally in power electronics, renewable energy, or industrial automation.
• Proven expertise in C programming for control systems.
• Strong understanding of power conversion systems, particularly 3-level inverters.
• Familiarity with UL certification processes (1741-SA/SB).
• Simulation experience using PSIM and Matlab.
• Hands-on experience with power system lab testing and debugging tools.
• Strong documentation and communication skills.
• Familiarity with version control tools (e.g., Git, SVN).

Contract Details

• Duration: 12 months (potential for extension)
• Schedule: 40 hours/week, full-time (Hybrid)
• Location: Charlotte, NC (some on-site support required)
• Travel: Up to 20% (project sites, certification labs)
• Start Date: ASAP