Demo

Jr. Firmware Engineer

SIGNATURE SOLAR LLC
Sulphur Springs, TX Full Time
POSTED ON 4/14/2026
AVAILABLE BEFORE 6/13/2026


Introduction

EG4 is looking for a highly motivated Junior Firmware Engineer to join our team. The ideal candidate will be responsible for developing firmware for our power electronics products, developing communication protocols using CAN and RS-485, setting up the development platform, and implementing test-driven development methodologies. A background in power electronics embedded firmware development is highly desirable.


Job Description

  • Develop and implement firmware for power electronics components like BMS, Inverter etc. develop communication protocols using CAN bus and RS-485.

  • Implement real time control algorithms to regulate power electronics, inverters, battery management systems and other related devices.

  • Debug and troubleshoot firmware issues, ensuring robust and reliable performance in field installations.

  • Optimize firmware for energy efficiency, battery management, and grid integration.

  • Help Setting up and maintain the development platform for firmware development.

  • Collaborate with the hardware team to integrate firmware with hardware components.

  • Work closely with QA teams to validate and test firmware in real-world solar applications.

  • Write comprehensive technical documentation for firmware design, architecture, and integration.

  • Provide technical support to field engineers and customers when necessary.

  • Collaborate with cross-functional teams to improve overall product lifecycle and quality.

  • Write clean, maintainable, and efficient code.

  • Help Implement and maintain test-driven development (TDD) practices.

  • Conduct unit testing and integration testing of firmware components.

  • Participate in design and code reviews.


A successful candidate will demonstrate:

  • Bachelor’s degree in electrical engineering, Computer Engineering, or related field.

  • Strong programming skills in C/C .

  • Experience with embedded systems development.

  • Proficiency in developing communication protocols, particularly CAN and RS-485.

  • Familiarity with microcontroller architectures and peripherals.

  • Knowledge of power electronics and battery management systems is a plus.

  • Experience with test-driven development methodologies.

  • Excellent problem-solving and analytical skills.

  • Strong communication and teamwork abilities.


Physical Requirements: 

  • This position may require the ability to perform tasks that involve sitting, standing, walking, lifting, computer work and other physical activities. Candidates should be able to meet these physical demands with or without reasonable accommodation.


Salary.com Estimation for Jr. Firmware Engineer in Sulphur Springs, TX
$82,293 to $96,024
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