Senior Controls & Firmware Engineer for AI Energy Storage

Exowatt; Austin (TX); On-site; USD 125,000 - 185,000; Full time

Benefits offered by this job

Competitive salary and equity options

Comprehensive benefits package

Relocation assistance

Opportunities for professional growth

Job summary

Exowatt is seeking a Controls & Firmware Engineer to design and implement control architecture for a scalable thermal energy storage system. This hands-on role features PLC programming and embedded firmware development, evolving our platform from industrial to custom microcontroller-based solutions.

Located in Austin, TX, this position requires relocation, with guidance provided. Competitive salary between $125,000 and $185,000 per year, alongside a comprehensive benefits package including health, dental, retirement, and equity options.

Qualifications

• 2–6 years of experience in PLC programming and/or embedded firmware development.
• Strong coding skills in C/C++ (Rust/Python a plus).
• Familiarity with utility‑scale energy systems or DERs.

Responsibilities

• Develop and test PLC programs for controllers.
• Design and implement embedded firmware in C/C++.
• Build and maintain CI/CD pipelines for automation.
• Support system integration, commissioning, and field validation.

Skills

PLC programming

Embedded firmware development

C/C++ programming

GitHub workflows

Utility-scale energy systems

Industrial networking protocols

Education

Bachelor’s in Electrical, Controls, Computer Engineering, or related field

Tools

Siemens TIA Portal

Rockwell Studio 5000

Job description

Exowatt is seeking a Controls & Firmware Engineer to design and implement control architecture for a scalable thermal energy storage system. This hands-on role features PLC programming and embedded firmware development, evolving our platform from industrial to custom microcontroller-based solutions.

Located in Austin, TX, this position requires relocation, with guidance provided. Competitive salary between $125,000 and $185,000 per year, alongside a comprehensive benefits package including health, dental, retirement, and equity options.