Senior BESS Engineer

Job Summary:

We are seeking a Project Engineer with strong design experience supporting Battery Energy Storage System (BESS) yards. This role is hands‑on and technically focused, supporting the electrical design and execution of grid‑connected BESS projects from concept through construction and commissioning. The ideal candidate brings deep experience in cable sizing, protection schemes, and electrical integration between BESS equipment and substations or utility interconnections.

This position works closely with EPC teams, OEMs, utilities, and internal multi‑discipline engineering groups to deliver safe, compliant, and constructible BESS designs.

What you'll do:

BESS Electrical Design & Engineering

• Support the detailed electrical design of utility‑scale and large C&I BESS yards, including MV/LV systems, PCS/inverters, transformers, and auxiliary systems
• Perform and review cable sizing calculations for MV and LV power, control, and grounding systems based on thermal limits, voltage drop, short‑circuit, and installation conditions.
• Develop, review, and support Protection schemes including relay selection, coordination philosophy, and interface with utility protection requirements
• Prepare and review one‑line diagrams, three‑line diagrams, cable schedules, grounding plans, and electrical layouts

Interconnection & EPC Coordination

• Support utility interconnection design, including interface points between BESS, collector systems, and substations
• Coordinate with EPC contractors and OEMs to review technical submittals, compliance matrices, and design clarifications
• Assist with protection and control coordination between BESS equipment, substations, and grid intertie facilities

Codes, Standards & Safety

• Ensure designs comply with NEC, IEEE, UL 9540 / 9540A, NFPA 855, IEC, and applicable AHJ and utility standards
• Support electrical safety, grounding, and protection philosophies aligned with EPC and utility best practices

What We Offer:

• A supportive and inclusive work environment that values diversity and encourages innovation.
• Opportunities for professional growth and career development.
• Competitive salary and comprehensive benefits package, including generous paid time off, 401(k) with company match, tuition reimbursement, and flexible work schedules.
• This position pays between $100K and $150K annually and is an exempt position. Benefits offered include company-sponsored medical, dental, vision, and 401(k) plan with company match. Also offered are tuition reimbursement, voluntary life, disability, critical illness, accident and hospitalization plans. HSA or FSA medical accounts and FSA dependent care and transportation/parking accounts are also available. These benefits are subject to employee contribution amounts generally set annually. Full-time employees are eligible to earn PTO hours. May be eligible for discretionary bonus as determined by the company.

Minimum Qualifications:

• Bachelor’s degree in electrical engineering or related discipline
• 5+ years of electrical or power engineering experience
• 4+ years of direct experience with BESS, renewables, or utility-scale power projects
• Experience working in an engineering consulting, EPC, or utility advisory role
• Strong knowledge of medium- and high-voltage systems and substation-connected assets
• Strong understanding of BESS yard electrical architecture and grid interconnection concepts
• Experience working with utilities, EPC contractors, and equipment vendors

Why Join Us?

At ENTRUST Solutions Group, we are a community of over 3,000 dedicated professionals committed to our clients and each other. As an ENR Top 100 company, we provide comprehensive engineering, consulting, and automation services to various industries, including gas and electric utilities, telecommunication service providers, pipeline operators, and industrial companies. We are a forward-thinking organization dedicated to leveraging cutting-edge technology to drive success. We are committed to fostering a culture of innovation and continuous improvement.

We believe in fostering a culture of inclusivity and respect, where everyone feels valued and empowered to contribute their unique perspectives. If you are passionate about our industry and looking for a place to grow your career, we would love to hear from you!

Explore More Opportunities:

Not quite the right fit? Check out all our openings at ENTRUST Solutions Group Careers.

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ENTRUST Solutions Group is proud to be an Equal Employment Opportunity employer. We celebrate diversity and do not discriminate based on race, religion, color, national origin, sex, sexual orientation, age, veteran status, disability status, or any other applicable characteristics protected by law.

Headhunters and recruitment agencies may not submit resumes/CVs through this website or directly to managers. ENTRUST does not accept unsolicited headhunter or agency resumes and will not pay fees to any third-party agency or company that does not have a signed agreement with ENTRUST Solutions Group.