Software Engineer - Site Controller, Energy Storage

About the role

At Redwood Materials, we are on a mission to revolutionize the battery supply chain by incorporating recovery, reuse, and recycling processes. Founded in 2017, our focus is on delivering cost-effective, large-scale energy storage solutions while producing battery materials domestically through the utilization of existing batteries. We are currently looking for a Site Controller Software Engineer to strengthen our digital infrastructure, which is essential for transitioning to a more agile energy ecosystem.

Key facts

What you'll do

• Design and develop a robust software architecture for the Site Controller, ensuring seamless coordination among numerous distributed microcontrollers while maintaining continuous operation.
• Spearhead the creation of multi-rate control systems that enhance site coordination and facilitate real-time grid execution, working closely with simulation and controls teams.
• Establish fault-management frameworks that allow for autonomous error recovery and ensure safe operational modes.
• Define the physical and real-time networking layers, creating reliable communication protocols to facilitate data flow between the site controller and local assets.
• Develop essential software interfaces for our "Pack Manager" technology, ensuring high availability and resilient data exchange.
• Construct modular and testable software with a strong focus on automated unit and integration testing to validate system performance.
• Implement distributed logging tools to improve telemetry data flows, enabling real-time monitoring of system health and performance metrics.
• Collaborate with cross-functional teams to ensure that software solutions align with overall project goals and timelines.
• Participate in code reviews and contribute to best practices in software development to enhance team productivity and code quality.
• Stay updated with industry trends and emerging technologies to continuously improve our software solutions.
• Document software designs and processes to facilitate knowledge sharing within the team and support future development efforts.

Requirements

• A Bachelor's or Master's degree in Computer Science or Electrical Engineering, with at least 2 years of experience in application-layer software development for hardware-constrained systems.
• Proficiency in Rust and Python, with a solid understanding of their applications in site orchestration and rapid tooling development.
• Strong knowledge of industrial communication protocols, especially Modbus TCP and CAN, with additional experience in DNP3 or IEC 61850 being a plus.
• Extensive experience in Linux system administration and familiarity with modern containerization technologies such as Docker and Kubernetes, particularly for edge computing applications.
• Proven track record in managing high-availability Firmware Over-the-Air (OTA) pipelines for secure updates from cloud to downstream controllers.
• Familiarity with time-series databases and data visualization tools to monitor system performance and energy flows effectively.
• Demonstrated ability to integrate off-the-shelf components from vendors into a unified software platform.
• Excellent problem-solving skills and the ability to work independently as well as part of a team.

Nice to have

• Experience with advanced data lifecycle management and monitoring tools that enhance system performance and reliability.
• Familiarity with machine learning techniques for predictive maintenance and optimization of energy storage systems.
• Knowledge of cybersecurity best practices related to industrial control systems and data integrity.

Skills & tools

• Proficient in Rust, Python, and Linux operating systems.
• Experienced with containerization technologies such as Docker and Kubernetes.
• Knowledgeable in industrial communication protocols including Modbus TCP, CAN, DNP3, and IEC 61850.
• Familiar with time-series databases and data visualization tools for effective monitoring and analysis.

Practical notes

In compliance with California pay transparency regulations, the salary range for this position is between $180,000 and $237,500 USD. Actual compensation may differ based on various factors, including individual experience and skill levels. We encourage candidates from diverse backgrounds to apply and contribute to our mission of creating a sustainable energy future.

About the company

Based in Carson City, Nevada, Redwood Materials focuses on reclaiming lithium-ion batteries and creating feedstock for electric vehicles and storage. Established in 2017 by J. B. Straubel, the company channels recovered materials back into manufacturing. As of October 2025, financial estimates valued Redwood Materials at roughly $6 billion. Operations support electromobility and grid applications by processing used batteries into essential raw components for energy systems.