Remote Firmware Engineer, Energy IoT & Field Devices

WCL Group; Boston (MA); Remote; USD 51,000 - 72,000; Full time

Job summary

WCL Group is seeking a Firmware Engineer for remote work in the United States. The role focuses on maintaining firmware for four proprietary hardware devices used in Demand Response, with emphasis on reliability and long lifecycle support.

You will work on low-power microcontroller systems, integrate with UART/SPI/I2C protocols, and collaborate with hardware and field teams to ensure secure and scalable firmware updates.

Qualifications

• 2-5 years of embedded firmware development experience.
• Experience maintaining legacy code and fielded devices.
• Proficient in C/C++, Python, and Linux shell scripting.
• Familiarity with secure firmware design or industrial protocols is beneficial.

Responsibilities

• Maintain and enhance embedded firmware for low-power microcontroller-based systems.
• Analyze, debug, and resolve field-reported issues, ensuring reliability and uptime.
• Modify and extend legacy codebases with minimal documentation.
• Collaborate with electrical engineers to support device-level debugging and testing.
• Work with digital I/O, relays, KYZ pulse counting, analog inputs, and related interfaces.
• Use debuggers, oscilloscopes, and logic analyzers to diagnose issues.
• Integrate serial protocols (UART, RS-232, RS-485, SPI, I2C).
• Support cellular modem communications using AT commands.
• Maintain and optimize firmware for reliable data transmission from field-deployed units.
• Support satellite module integration for remote telemetry.
• Participate in long-term product sustainment and backward compatibility.

Skills

Embedded firmware

C/C++

Python

Linux shell

Education

Bachelor's in Electrical/Computer Eng

Tools

Cross-compile toolchains

Yocto

Embedded Linux

Debuggers

Oscilloscopes

Logic analyzers

Serial protocols (UART/RS-232/RS-485/SPI/I2C)

Job description

WCL Group is seeking a Firmware Engineer for remote work in the United States. The role focuses on maintaining firmware for four proprietary hardware devices used in Demand Response, with emphasis on reliability and long lifecycle support.

You will work on low-power microcontroller systems, integrate with UART/SPI/I2C protocols, and collaborate with hardware and field teams to ensure secure and scalable firmware updates.