Senior Embedded Firmware Engineer — Industrial Power Systems

Delta Electronics (Americas) Ltd.; City of Pewaukee (WI); On-site; USD 110,000 - 160,000; Full time

Job summary

Delta Electronics Americas is building and maintaining the embedded software stack for the Unit Controller, coordinating with PCS, BMS, and HVAC, and exposing a clean interface to RT and SCADA on Delta US hardware.

You will re-platform the Taiwan codebase for US standards, implement Modbus TCP/RTU, IEC 61850 (client), CAN, and OPC UA, and stand up CI/CD pipelines on Azure DevOps with HIL testing and secure update mechanisms.

Qualifications

• BS/MS in Computer Engineering, Electrical Engineering, or Computer Science; 5+ years in embedded software for industrial / energy system
• Expert in C/C++ on Linux and/or RTOS; strong with multithreading, real-time scheduling, IPC, and deterministic networking
• Industrial protocol experience: Modbus TCP, IEC 61850 (MMS/GOOSE client), DNP3, OPC UA, CA
• Modern DevOps: Git, Azure DevOps or GitHub Actions, Docker, Yocto build systems, hardware-in the-loop test rig
• Cybersecurity fundamentals: secure boot, TLS/mTLS, signed updates, key management

Responsibilities

• Develop firmware/middleware for the Unit Controller in C/C++ (and Rust where appropriate) on Linux / RTOS targets (Yocto, FreeRTOS, Zephyr)
• Receive and re-platform the existing Taiwan Unit Controller code base; refactor for US PCS/BESS vendors and US standards
• Implement Modbus TCP/RTU, IEC 61850 (client), CAN, and OPC UA stacks; integrate with PCS, BMS, HVAC, and meters
• Stand up CI/CD pipelines on Azure DevOps with self-hosted build agents, automated unit tests, static analysis (MISRA, Coverity), and HIL-in-the-loop gates
• Implement secure boot, signed OTA updates, role-based access, audit logging — aligned to IEC 62443-4-1/-4-2 and NERC CIP where applicable

Skills

Embedded software development

C/C++ on Linux/RTOS

Multithreading & RT scheduling

Industrial protocols (Modbus TCP, IEC

DNP3 & OPC UA

Cybersecurity fundamentals

DevOps practices

Education

BS in Computer Engineering, Electrical Engineering, or Computer Science

MS in Computer Engineering, Electrical Engineering, or Computer Science

Tools

Git

Azure DevOps

GitHub Actions

Docker

Yocto

HIL testing

Job description

Delta Electronics Americas is building and maintaining the embedded software stack for the Unit Controller, coordinating with PCS, BMS, and HVAC, and exposing a clean interface to RT and SCADA on Delta US hardware.

You will re-platform the Taiwan codebase for US standards, implement Modbus TCP/RTU, IEC 61850 (client), CAN, and OPC UA, and stand up CI/CD pipelines on Azure DevOps with HIL testing and secure update mechanisms.