Sr. Energy Storage Engineer
About The Position
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. SB Energy is a leading infrastructure company backed by SoftBank Group and Ares Infrastructure, pairing cutting-edge innovation with best-in-class execution. Our mission is to deliver reliable and secure data center and power infrastructure to strengthen America's future. Founded in 2019, SB Energy is a SoftBank Group company headquartered in Redwood City, California. In 2026, SoftBank Group and OpenAI announced a $1 billion investment to support SB Energy as their leading development and execution partner for data center campuses, while Ares Infrastructure continues its long-standing support of the company's growth. SB Energy develops, builds, owns, and operates some of the largest and most technically advanced energy and data center infrastructure projects in the United States. Since its founding, the company has rapidly grown into a top-tier integrated platform with more than 3 gigawatts (GW) in operation and a multi-GW pipeline of energy and data center infrastructure nationwide. SB Energy also leverages a strong culture of innovation to identify and integrate new technologies into its projects, including its AI-based digital platform, delivering energy infrastructure that is local, reliable, and matched to load. We are building the energy and infrastructure future—today. Come join us in accelerating the energy and infrastructure transition!
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.
- 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.
Nice To Haves
- Experience with Python, AI applications, or data analytics is a plus.
- Experience with renewable energy hybrid plants (solar + storage) is a plus.
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.
Benefits
- 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
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What This Job Offers
Job Type
Full-time
Career Level
Senior
