Senior Controls & Embedded Firmware Engineer Energy Storage

NextGenEnergyJobs; Austin (TX); On-site; USD 85,000 - 125,000; Full time

Job summary

Exowatt is shaping the AI era energy landscape with its P3 system. We seek an engineer to design and test PLC programs, develop embedded firmware, and integrate components for energy storage platforms.

You will implement safety interlocks, configure industrial protocols, and ensure real-time performance in demanding environments. This role emphasizes CI/CD, testing, and field validation in a cutting-edge context.

Qualifications

• Bachelor’s degree in Electrical/Controls/Computer Engineering or related field.
• 2–6 years of experience in PLC programming and/or embedded firmware development.
• Proficiency with Siemens TIA Portal / Rockwell Studio 5000 (or similar).
• Strong coding skills in C/C++ (Rust/Python a plus).
• Experience with GitHub workflows, CI/CD pipelines, automated testing.
• Familiarity with utility-scale energy systems or DERs.
• Understanding of industrial networking and protocols (Profinet, Ethernet/IP, OPC UA, DNP3, MQTT).
• Exposure to energy storage standards (UL 9540, IEC 62443, IEC 61131-3, IEEE 1547).
• Knowledge of cloud-integrated controls (AWS IoT Core, InfluxDB, Timestream, CloudWatch).
• Experience setting up test benches, simulators, or hardware-in-the-loop systems.

Responsibilities

• Develop and test PLC programs (Siemens, Rockwell, or equivalent) for system, module, and site-level controllers.
• Implement safety interlocks, alarms, and operational sequences for energy storage modules.
• Configure and validate industrial communication protocols (Profinet, Ethernet/IP, OPC UA, DNP3, MQTT).
• Integrate different system components with Microcontroller based devices.
• Set up and maintain a test bench / HIL environment for PLC validation.
• Design and implement embedded firmware in C/C++ for microcontrollers if migrating from PLC-based controls.
• Develop and test communication stacks, device drivers, and OTA update mechanisms.
• Ensure deterministic, real-time operation in power and energy storage applications.
• DevOps & CI/CD: build and maintain pipelines for PLC code, firmware, and test automation.
• Participate in system integration, commissioning, and field validation.

Skills

PLC programming

Embedded firmware development

C/C++ development

Rust

Python

Real-time systems

Industrial networking

OTA updates

CI/CD

Test automation

HIL testing

Power/energy storage knowledge

Education

Bachelor’s in Electrical/Controls/Computer Engineering

Tools

Siemens TIA Portal

Rockwell Studio 5000

GitHub Actions

CI/CD pipelines

OTA update mechanisms

AWS IoT Core

InfluxDB

Timestream

CloudWatch

Job description

Exowatt is shaping the AI era energy landscape with its P3 system. We seek an engineer to design and test PLC programs, develop embedded firmware, and integrate components for energy storage platforms.

You will implement safety interlocks, configure industrial protocols, and ensure real-time performance in demanding environments. This role emphasizes CI/CD, testing, and field validation in a cutting-edge context.