Project Manager, Mech & Elec Sys. (NPI

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Full Time Professional Wilsonville, OR, US

7 days ago Requisition

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.

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.

• Own end‑to‑end scope capture and facilitate execution of mechanical and electrical system product development projects
• Detail and maintain integrated project plans, including milestones, dependencies, and risks
• Proactively engage with mechanical and electrical engineering teams to ensure progress against milestones, leveraging sprint methodologies to keep teams focused and organized
• Partner with technical SMEs to define, scope, and manage subcontractor engagements, including development of SoW and deliverable expectations
• Serve as the primary coordination point for third‑party development vendors, ensuring alignment to project timelines and deliverables
• Identify, elevate, and resolve cross‑team risks, blockers, and execution gaps with support from leadership
• Track project progress to support accurate portfolio KPIs
• Run project reviews, standups, and status communications with a focus on accuracy and consistency
• Support translation of product and technical strategy into executable plans
• Implement and reinforce project management tools, processes, and governance standards
• Contribute to resource planning, forecasting, and project‑level budgeting as needed

• Execution mindset and the ability to organize and motivate teams to implement with excellence
• 3-6+ years of experience in project management, program management, engineering within a physical product development environment
• Experience delivering complex, multi‑team project outputs in integrated system NPD/NPI or product evolution applications – relevant industries include automotive, aerospace, energy, or similar technical products
• Strong working knowledge of product development + NPI life cycles and PMI processes
• Proven ability to manage cross‑functional dependencies and external partners
• Excellent organizational,…