Controls & Firmware Engineer

Exowatt is revolutionizing the energy landscape for the AI era with our groundbreaking P3 system that captures solar energy, stores it as heat, and generates electricity on demand.

We are looking for a Controls & Firmware Engineer to help design and implement the control architecture for our scalable thermal energy storage system. This hands-on role involves both PLC programming and embedded firmware development, giving flexibility as we evolve our platform from industrial controllers to custom microcontroller-based solutions.

Key Responsibilities

Controls (PLC Path)

• Develop and test PLC programs for system, module, and site-level controllers.
• Implement safety interlocks, alarms, and operational sequences for energy storage modules.
• Configure and validate industrial communication protocols.
• Integrate different system components with Microcontroller based devices.
• Set up and maintain a test bench / HIL environment for PLC validation.

Firmware (Microcontroller Path)

• Design and implement embedded firmware in C/C++ for microcontrollers.
• Develop and test communication stacks, device drivers, and OTA update mechanisms.
• Ensure deterministic, real-time operation in power and energy storage applications.
• Set up and maintain a test bench / HIL environment for validation.

DevOps & CI/CD

• Build and maintain CI/CD pipelines for PLC code, firmware, and test automation.
• Implement version control best practices for branching, releases, and tagging safety-critical builds.
• Develop infrastructure to run automated test suites.

Energy Storage Integration

• Apply knowledge of utility-scale energy storage systems.
• Participate in the development of control panel design for various components of energy storage system.
• Design & develop EMS/SCADA application to map controls data into historians, HMIs, and cloud telemetry systems.
• Support system integration, commissioning, and field validation.

Qualifications

• Bachelor’s 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.
• Strong coding skills in C/C++.
• Experience with GitHub workflows, CI/CD pipelines, automated testing.
• Familiarity with utility-scale energy systems or DERs.
• Understanding of industrial networking and protocols.

Preferred Skills

• Exposure to energy storage standards.
• Knowledge of cloud-integrated controls.
• Experience setting up test benches, simulators, or hardware-in-the-loop systems.

Additional Information

What We Offer:

• Competitive salary and equity options.
• Comprehensive benefits package, including health, dental, and retirement plans.
• A dynamic work environment that fosters creativity and innovation.
• Opportunities for professional growth and development in a rapidly evolving industry.
• Relocation assistance.