Software/Firmware Engineer

ESS cares about your health and safety therefore strongly encourages all our employees to get vaccinated and remain current with your COVID vaccine. Learn more at cdc.gov/coronavirus.

Catalyzing a cleaner future.

At ESS (NYSE: GWH), our mission is to accelerate global decarbonization by providing safe, sustainable, long-duration energy storage that powers people, communities, and businesses with clean, renewable energy anytime and anywhere its needed. As more renewable energy is added to the grid, long- duration energy storage is essential to providing the reliability and resiliency we need when the sun is not shining and the wind is not blowing.

Our technology uses earth-abundant iron, salt, and water to deliver environmentally safe solutions capable of providing up to 12 hours of flexible energy capacity for commercial and utility-scale energy storage applications. Established in 2011, ESS Inc. enables project developers, independent power producers, utilities, and other large energy users to deploy reliable, sustainable long-duration energy storage solutions. For more information visit www.essinc.com.

ESS is seeking a dynamic Software Engineer who will work closely with our development team on software that integrates multiple flow battery systems under a single control scheme. This position involves improving battery simulation software used to run tests against, for internal and customer purposes. The focus of this role will be the analysis and modeling of energy systems to optimize performance for their particular location and application. The role will also include maintenance and troubleshooting of software that controls our research testing stations. This will involve updating the database tables to create new test stand instances as they are built.

What youll do at ESS

• Evaluate, design, develop, upgrade, and maintain new and existing firmware for use in multi flow battery control systems.
• Evaluate, design and develop algorithms that operate multiple battery systems optimally for the location and application they are deployed at.
• Extend an existing flow battery simulator that is used to test the multi flow battery controller against.
• Extend an existing flow battery simulator that can be used by customers to validate their controllers before testing them on real flow battery systems.
• Participate in the testing process throughout the design cycle of the multi flow battery control system.
• Maintain and update test stand control code to run small scale and single stack tests.
• Work with design engineers and test technicians to provide technical assistance as needed.
• Assist in debugging field problems.
• Collaborate with team members to conduct code reviews and ensure adherence to coding standards and best practices.
• Participate in regular team meetings to provide updates on project status and discuss technical challenges and solutions.

What You Bring to the Table

Minimum Requirements:

• Bachelors degree in Electrical Engineering, Computer Science, related field, or equivalent experience.
• Minimum of 3 years of professional software development experience.
• Strong coding skills in C/C++ and Python.
• Strong coding skills in C# and .NET Framework.
• Experience with Git or similar version control software.
• Experience writing software for Embedded Systems.
• Knowledge of Algorithms and Data Structures.
• Experience with Linux command line.
• Strong analytical and problem-solving skills.
• Excellent interpersonal and communication skills.
• Ability to work effectively both independently and as part of a team.

Wed Love To See:

• Familiarity with Javascript, HTML and CSS.
• Experience with database interfacing and design.
• Proficient with Docker.
• Data analysis or report generation.
• Familiarity with energy storage systems or renewable energy technologies.

Benefits of working at ESS

In addition to the value of working with and helping grow a global reaching clean technology, ESS offers Company assisted medical, dental and vision, 401k with Company match, Employee Stock Purchase Plan (ESPP), a generous PTO accrual, and 8 paid holidays.

As an equal opportunity employer, we are open to considering every qualified candidate who is eligible and legally authorized to work in the United States on a full or part-time basis, without a need for sponsorship.

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice.

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