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Firmware Engineer

Job in Virginia, St. Louis County, Minnesota, 55792, USA
Listing for: 6AM City, LLC
Full Time position
Listed on 2026-05-29
Job specializations:
  • Software Development
    Embedded Software Engineer, Software Engineer
Salary/Wage Range or Industry Benchmark: 40 - 60 USD Hourly USD 40.00 60.00 HOUR
Job Description & How to Apply Below

Job Description

Summary:

Seeking a Firmware Engineer to plan, design, test, deploy, and maintain firmware for multithreaded, microcontroller-based systems.

Job Requirements
  • 3+ years of embedded systems development in C/C++, including object-oriented programming and building scripts with CMake
  • Experience in multi-threaded (RTOS) and bare metal application development and debugging;
    FreeRTOS experience is a plus
  • Proficiency with hardware debugging tools (e.g., multimeters, oscilloscopes, logic analyzers) and software debugging techniques (e.g., prototyping, gdb servers)
  • Familiarity with Git for version control and maintaining software documentation using Doxygen
  • Hands‑on experience with communication protocols such as UART, RS-485, MODBUS, I2C, SPI, and USB
  • Experience with ARM-based processors, particularly STM
    32 MCUs
  • Knowledge of developing automated testing environments and digital/analog circuit development
  • Experience with PLC ladder logic, GUI creation, and desktop application development using modern programming languages (e.g., Java, Python)
Preferred Skills
  • PCB design experience
Job Responsibilities
  • Plan, design, test, deploy, and maintain firmware for multithreaded microcontroller-based systems
  • Maintain documentation on developed software including test procedures and verifications
  • Develop and run tests to ensure firmware functionality through manual and automated strategies
  • Collaborate with cross‑functional teams to create stand‑alone instruments involving basic electrical circuit design
  • Engage in hands‑on development of prototypes to ensure optimal performance of instruments
  • Design software that runs on PLCs as well as auxiliary software for firmware solutions

Pay Details: $40.00 to $60.00 per hour

Benefit offerings available for our associates include medical, dental, vision, life insurance, short‑term disability, additional voluntary benefits, EAP program, commuter benefits and a 401K plan. Our benefit offerings provide employees the flexibility to choose the type of coverage that meets their individual needs. In addition, our associates may be eligible for paid leave including Paid Sick Leave or any other paid leave required by Federal, State, or local law, as well as Holiday pay where applicable.

Equal Opportunity Employer/Veterans/Disabled

To read our Candidate Privacy Information Statement, which explains how we will use your information, please navigate to

The Company will consider qualified applicants with arrest and conviction records subject to federal contractor requirements and/or security clearance requirements.

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