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# Embedded Systems Engineer - FreeRTOS

- **Company:** MESQUITE ENERGY FORMS, LLC
- **Location:** Somerville, MA, United States
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Automation of Tests, C++ (Programming Language), Computer Engineering, Software Debugging, Firmware, FreeRTOS, Joint Test Action (IEEE Standards), Python (Programming Language), Real-Time Operating Systems, Universal Asynchronous Receiver/Transmitter, Data Logging, Diagnostic Tools, Multithreading, Serial Peripheral Interface, State Machines, Information Technology, Low Latency, Bare Metal
- **Published:** August 22, 2026
- **Apply:** https://www.careerjet.com/jobad/us9ec6a2a3ea3f70977bb27b716cf7b46b

## About the Role

* B.S. or M.S. in Computer Science, Electrical Engineering, Computer Engineering, or a related field
 * 3+ years of professional experience in bare-metal or RTOS firmware development for complex electromechanical, robotic, or medical systems
 * Strong C/C++ skills for deeply embedded microcontrollers, with a passion for clean, modular, well-documented code where failures have physical consequences
 * Ability to read schematics, locate test points on a PCB, and confidently use hardware lab diagnostic tools

## Description

We're looking for an Embedded Systems Engineer who loves being close to the hardware. You'll develop the real-time "brain" of the LightCell - firmware running at the bare-metal and RTOS level on STM32 microcontrollers, directly controlling micro-pumps, proportional valves, high-current igniters, blowers, and other actuators.
What You'll Do

 * Develop, test, and debug low-overhead C/C++ firmware implementing the state machines and real-time control loops that govern LightCell operations
 * Architect and optimize multi-threaded tasks using FreeRTOS on STM32, ensuring precise scheduling, task prioritization, and low-latency safety controls
 * Write and validate robust custom drivers for digital and analog peripherals over SPI, I2C, UART, and CAN
 * Serve as the primary technical bridge at the hardware-firmware boundary, isolating bugs using oscilloscopes, logic analyzers, and JTAG/SWD debuggers
 * Write automated test scripts (Python) to interface with hardware for high-speed data logging and long-duration system characterization


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