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 it’s 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.
Position Profile
ESS is seeking a Project Manager II, BESS Mechanical & Electrical (NPD / NPI) to drive project execution across our mechanical and electrical systems product development initiatives. This role drives detailed project planning, coordination, and delivery for complex, cross-functional development efforts, ensuring that timelines are realistic, dependencies are understood, and teams remain aligned to product roadmaps and company commitments as we deliver next-generation energy storage products.
You will act as a key execution driver, integrating internal teams of engineers, architects, product leaders, and third-party partners into a cohesive project structure, proactively managing dependencies, identifying risks, tracking costs, and maintaining timelines to ensure projects are executed effectively and with emphasis on quality results. This role operates with moderate autonomy and emphasizes hands-on coordination, schedule integration, and risk management, operating as a bridge between functional execution and program objectives.
The ideal candidate is proactive, highly organized, technologically fluent, and comfortable navigating competing priorities with support from leadership.
What you’ll do
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Own end-to-end scope capture and facilitate execution of mechanical and electrical system product development projects
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Detail and maintain integrated project plans, including milestones, dependencies, and risks
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Proactively engage with mechanical and electrical engineering teams to ensure progress against milestones, leveraging sprint methodologies to keep teams focused and organized
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), generous flexible time off (FTO), and 8 paid holidays.
