Embedded Software Engineer

Overview

About ERMCO

ERMCO (Electric Research and Manufacturing Cooperative, Inc.) is a leading U.S. manufacturer of distribution transformers and engineered electrical solutions serving electric utilities, OEMs, and industrial customers across North America. Headquartered in Dyersburg, Tennessee, ERMCO delivers reliable, high-quality products that power homes, businesses, and communities every day.

With a commitment to safety, operational excellence, and continuous improvement, ERMCO is at the forefront of supporting grid modernization and the energy transition. Our vertically integrated operations, customer-focused culture, and investment in people and technology make ERMCO a trusted partner in delivering resilient, sustainable power infrastructure for the future.

About Grid Bridge

Grid Bridge is revitalizing power delivery systems for critical applications through combining breakthrough hardware with embedded software that enables distributed resources, enhances reliability and resilience, and improves efficiency. The company was founded in 2012 and now operates as a wholly owned subsidiary of ERMCO Distribution Transformers. We are looking for committed team members with a passion to be part of our fast-paced business that is changing how power is delivered to consumers.

For more information, please contact us or visit our websites at:  and

Job Summary We are seeking an Embedded Software Engineer to join our team in the design & implementation of the Grid Bridge products. This individual would work closely with Power Electronics HW, DSP Engineers, and other R&D personnel. This position requires embedded software engineering skills in the implementation of embedded software with control of hardware and intra-process communications. The platform software is based on a Yocto build of embedded Linux running on an iMX8 processor.

Additional bare metal development on an STM
32 platform is needed. The Grid Bridge team operates in a non-hierarchical manner, achieving great success in our team centric approach to development. Our working environment is still structured like a fast-paced start‑up.

Responsibilities of this position include but are not limited to:

• Contribute to the design, development, and maintenance of embedded software on Yocto-based Linux (iMX ARM platform).
• Design, development, and maintenance of bare metal embedded software on a STM
  32 microprocessor.
• Develop and support embedded C/C++ code for controller cards, including integration with peripherals (CAN, RS232, USB, SPI, I2C, A/D, D/A).
• Collaborate with hardware and DSP engineers throughout the product lifecycle.
• Implement and maintain coding standards, documentation, and version control practices.
• Design and integrate system-level software for control, UI, cloud connectivity, and communication protocols.
• Port and integrate protocol stacks (e.g., OpenDNP3) and interface with customer systems.
• Support system testing, manufacturing diagnostics, and deployment activities.
• Contribute to continuous improvement of development processes

Skills

Required proficiencies for this position include but are not limited to:

• 5+ years of experience in embedded software development.
• Proficiency in C/C++ for embedded systems.
• Experience with embedded Linux (Yocto preferred) and shell scripting (e.g., JavaScript, Python).
• Experience with Docker Containers is a plus.
• Strong understanding of communication protocols (I2C, SPI, UART, CAN, Ethernet, LTE).
• Familiarity with debugging tools (e.g., JTAG, oscilloscopes) and version control (e.g., Git).
• Excellent documentation and communication skills.
• Ability to work independently in a startup-like environment.

Desired skills for this position include:

• Background in Smart Grid or utility product development.
• Prior experience in small teams or startup environments.
• Education in Computer Science, Software Engineering, Mechatronics, or Electrical Engineering (advanced degrees or relevant minors a plus).
• Working knowledge of protocol stacks (DNP3, OpenADR, Modbus, and OCPP)
• JavaScript and REACT for user interface design
• MQTT for intra-process communications
• Experience with Docker is a plus
• Development of IoT solutions using AWS or similar
• System testing, Manufacturing diagnostics, built in test/diagnostics (PBIT, IBIT, CBIT)
• Deployment and customer support
• SCADA or other utility standards experience
• Experience using a Requirement Management Tool (RQM) (e.g. DOORS, Visure, etc) for the purpose of tracking and traceability of requirements from product to design and test cases.
• Working with functional safety compliance processes (e.g. IEC 61508 and/or IEC 60730-1) to meet the certification process and all supporting documentation for certification.

Experience The candidate shall have a minimum of 5 years of applicable experience. Experience in Smart Grid or Utility product development is a plus.

Education Relevant education would include degrees in Computer Science, Computer Engineering, Software Engineering, Electrical Engineering,…