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Sr. Electrical Engineer
Job in
Wilsonville, Clackamas County, Oregon, 97070, USA
Listed on 2026-06-02
Listing for:
ESS, Inc.
Full Time
position Listed on 2026-06-02
Job specializations:
-
Engineering
Electrical Engineering, Energy Engineer
Job Description & How to Apply Below
ESS is a globally recognized leader in sustainable energy storage and is consistently identified as one of the most innovative and exciting technology players in energy storage. It is poised to be one of the fastest growing energy technology companies in the world, with projects already across 4 continents and an upcoming public offering. The ESS vision is about enabling the decarbonization of the grid by enabling us to achieve up to 100% of our electricity from clean, sustainable renewable energy.
These are ambitious goals, and we are pursuing them with passion. At ESS, we are leading the energy transition, creating the sustainable energy solutions of the future to help individuals, businesses and communities change energy into lasting value.
ESS Inc. is seeking a Sr. Electrical Engineer - Battery Energy Storage Systems (BESS) to lead and support the design, development, and delivery of grid-scale and distributed energy storage projects. This role owns electrical designs from early concepts through final product release and supports both internal product development and external customer projects. The successful candidate will collaborate across multidisciplinary engineering teams and serve as a technical leader, mentor, and subject matter expert in battery energy storage systems.
What you'll do at ESS
Technical Ownership & Design
- Own battery system electrical designs for ESS energy base products from early development through final product release.
- Support grid-scale Battery Energy Storage System (BESS) projects by developing conceptual layouts, one-line diagrams, and detailed electrical designs through Issue for Construction (IFC) packages.
- Support microgrid and distributed energy resource projects by developing detailed electrical engineering designs.
- Evaluate, analyze, and compare energy storage technologies, products, and vendors. Support technology and vendor selection and implementation.
- Develop and review engineering design plans, technical specifications, cost estimates, and construction documents at various design milestones.
- Prepare written technical reports clearly communicating battery energy storage concepts, feasibility studies, and use-case analyses to diverse audiences.
- Participate in meetings with clients, contractors, vendors, and internal stakeholders in support of project execution and business development.
- Provide construction-phase technical support including bid addenda, submittal reviews, RFIs, construction progress reports (CPRs), and change orders.
- Coordinate closely with civil, structural, fire & life safety (FLS), power systems, and SCADA teams/contractors to deliver IFC design packages.
- Participate in design reviews with internal stakeholders, governing agencies, and AHJs.
- Serve as a technical mentor or counselor to junior engineering staff.
- Coordinate project workload to ensure on-time delivery of engineering documents.
- Conduct quality assurance and quality control (QA/QC) reviews of work performed by other engineers, designers, and technicians.
- Provide technical assistance and subject-matter expertise to ESS teams and customers as needed.
- Support development and continuous improvement of internal engineering design guidelines, catalogs, and templates. Direct contributions to technical, R&D, and project development through document creation and review.
- All other duties as assigned.
Required
Education and Experience
- Bachelor's degree in Engineering from an ABET-accredited engineering program or equivalent accredited agency with 8+years of proven experience. A mix of education and applicable experience will be considered.
- Strong fundamentals in electrical and mechanical principles.
- Background in power systems engineering with a focus on LV and MV installations.
- Ability to read and understand electrical schematics and mechanical drawings.
- Experience with at least one BESS installation from start to finish involving multiple technical stakeholders.
- Proficient with one or more drafting software packages for one line diagram creation and site construction…
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