Sr. Energy Storage Engineer

Basic Function

As a part of the Engineering team, the Sr. Energy Storage Engineer will provide subject matter expertise on Energy Storage design, optimization, final engineering, and construction permitting of utility-scale energy storage projects. The Sr. Energy Storage Engineer will have the ability to work independently while being able to contribute successfully to cross-functional teams. The Sr. Energy Storage Engineer will also have excellent organizational skills, be able to manage multiple projects at once, have excellent follow-through skills, and will have the ability to meet strict deadlines.

Responsibilities

• Create and maintain Energy Storage engineering standards, technical specifications, and design requirements to ensure quality, reliability, constructability, and cost optimization.
• Lead technical reviews of utility-scale BESS projects through development, detailed design, construction, commissioning, and handover.
• Support Engineering and Construction teams by reviewing EPC deliverables and driving design optimization for cost, schedule, reliability, and operability.
• Develop and review preliminary electrical designs, site layouts, equipment sizing, single-line diagrams, and balance of plant (BOP).
• Lead technical evaluation and selection of batteries, PCS, transformers, MV equipment, EMS, BMS, SCADA, and auxiliary systems.
• Review and approve EPC engineering packages, calculations, RFIs, submittals, shop drawings, FAT/SAT plans, and commissioning procedures.
• Provide engineering support during construction by resolving technical issues, reviewing field changes, and coordinating with EPCs, OEMs, utilities, and AHJs.
• Lead technical discussions with utilities, AHJs, independent engineers, and code officials to resolve design and permitting issues.
• Support interconnection studies, system modeling, and compliance with utility, ISO/RTO, IEEE, UL, NFPA, NEC, and local code requirements.
• Lead commissioning activities, performance testing, substantial completion, and final project acceptance.
• Visit battery, PCS, and major equipment manufacturers to support technical due diligence, factory acceptance testing (FAT), and procurement activities.
• Support procurement by performing technical evaluations, developing approved vendor lists, and managing technical bid evaluations.
• Support Operations & Maintenance teams by providing troubleshooting and long-term technical guidance.
• Review emerging energy storage technologies and support pilot projects for next-generation storage solutions.
• Serve as the technical subject matter expert for Energy Storage across the organization.

Qualifications & Requirements

• Minimum 8 years of experience in utility-scale Battery Energy Storage Systems (BESS), with significant experience in engineering, EPC execution, or owner's engineering.
• B.S. in Electrical Engineering (Power Systems preferred) from an ABET-accredited university; M.S. and PE license are preferred.
• Strong experience delivering projects through the complete lifecycle, including engineering, procurement, construction, commissioning, and commercial operation.
• Extensive experience working with EPC contractors and resolving engineering, construction, and commissioning issues.
• Strong knowledge of utility interconnection requirements, permitting processes, and coordination with utilities and AHJs.
• Experience supporting inspections, code compliance, and resolving AHJ comments through project completion.
• Deep understanding of lithium-ion battery technologies, PCS, transformers, MV systems, protection and controls, EMS, BMS, SCADA, and plant integration.
• Strong understanding of applicable codes and standards including IEEE, NEC, NFPA, UL, ANSI, and local jurisdiction requirements.
• Experience reviewing engineering calculations, protection studies, grounding, short-circuit, arc flash, relay coordination, and commissioning documentation.
• Experience supporting utility interconnection studies and working with consultants using ETAP, PSCAD, PSS®E, PowerFactory, or similar tools.
• Strong technical writing, communication, and leadership skills with the ability to lead cross-functional engineering efforts.
• Experience supporting vendor selection, technical due diligence, FAT/SAT, and procurement activities.
• Proficiency with AutoCAD, Bluebeam, Microsoft Office, and engineering documentation tools.
• Experience with Python, AI applications, or data analytics is a plus.
• Experience with renewable energy hybrid plants (solar + storage) is a plus.

Travel Requirements

The position requires up to 15% domestic and international travel.

Location

Redwood City, CA; anywhere in CA; or Denver, CO. Open to remote for the right candidates.

Pay

Base pay range: $100,000–$140,000. The pay range mentioned is a guideline; total rewards may also include performance-based bonuses, equity grants, and comprehensive health and wellness benefits.

Health & Wellness Benefits

Full-time employees enjoy:

• 100% Company-Paid Medical, Dental & Vision (for employees and dependents)
• 401(k) with Company Match
• Generous Paid Time Off + 11 Paid Holidays
• 12 Weeks Paid Parental Leave
• Life, AD&D & Long-Term Disability Coverage
• Flexible Spending Accounts (FSA) for Medical, Dependent Care, Transit & Parking (with company contributions)
• Mental, Physical & Social Wellness Support (with company contributions)
• Flexible Work Arrangements & Hybrid Office Setup Benefits
• Monthly Reimbursement for Phone, Internet & Data
• Optional Legal & Pet Insurance Plans
• Device Purchase Support