Sr. BESS Electrical Engineer

Sr. Electrical Engineer – BESS (Battery Energy Storage Systems)

Location:

Nationwide. Company:
Primoris Services Corporation.

• Lead development of preliminary design concepts for Battery Energy Storage Systems (BESS) using advanced engineering principles and industry best practices.
• Provide high-level technical documentation and guidance to Estimating, Business Development, and Proposal teams to support project pursuits.
• Oversee and contribute to detailed design development for awarded BESS projects, ensuring accuracy and constructability.
• Provide lifecycle design leadership and optimization support from concept through commissioning and operations.
• Develop, standardize, and maintain electrical engineering calculation tools and design methodologies.
• Collaborate with Estimating, Procurement, Project Management, and Field teams to drive design optimization and execution success.
• Lead and mentor AutoCAD designers and junior engineers in producing site layouts, single-line diagrams, and construction drawings.
• Own and continuously improve the database of equipment and design standards used in BESS engineering.
• Direct development of construction details, engineering deliverables, and Bills of Materials for project work packages.
• Lead the design process from conceptual through Issued for Construction (IFC) stages across multiple projects.
• Review, interpret, and guide utility interconnection documentation including facility studies, interconnection agreements, and power purchase agreements.
• Apply advanced engineering and cost optimization strategies and maintain design matrices for scalability and future use.
• Provide technical leadership and support to Procurement and Operations teams during project execution.
• Utilize and promote company-approved tools and communication methods to ensure cross-functional alignment.
• Drive continuous improvement across engineering, procurement, scheduling, and project controls workflows.
• Analyze historical project data to inform design improvements, cost efficiencies, and material forecasting.

• Bachelor’s degree in Electrical Engineering or related field, or equivalent industry experience.
• 5–8 years of experience in renewable energy, including at least 3 years in utility-scale BESS or Solar PV design.
• Proven experience leading engineering design efforts on large-scale energy projects.
• Advanced proficiency with AutoCAD Civil 3D, PVsyst, SAM, ETAP, CYMCAP, PVSOL (BESS Design), and Python.

• Deep understanding of BESS and PV system architecture including inverters, transformers, and protection systems.
• Strong ability to interpret manufacturer specifications and translate into optimized, constructible designs.
• Extensive experience developing BESS site plans and single-line diagrams (AC and DC systems).
• Strong prioritization and multitasking skills with ability to manage multiple projects independently.
• Ability to lead effectively in a fast-paced, dynamic environment.
• High level of organization and attention to detail.
• Experience mentoring junior engineers and supporting team development.

Primoris Services Corporation is a premier specialty contractor delivering critical infrastructure services across the utility, energy, and renewables sectors throughout the U.S. and Canada. We provide engineering, construction, and maintenance services that power, connect, and enhance society. Our projects span utility-scale BESS, renewables, power delivery, communications, and transportation infrastructure.

• 401(k) with employer match
• Health, Dental, and Vision insurance plans
• Paid time off
• 10 paid holidays
• Employee stock purchase plan
• Salary Range: $130,000 – $165,000 annually, based on experience, qualifications, and competencies

Equal Employment Opportunity Statement: We are an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law.