Senior BESS Electrical Engineer (Remote)

About the Role

IS International Services is hiring a Senior BESS Electrical Engineer to lead engineering and technical review for utility-scale battery energy storage system (BESS) projects. This fully remote role owns the electrical design lifecycle—from early concept through execution—while partnering with cross-functional teams to deliver reliable, high-performing renewable energy assets.

Responsibilities

• Develop and review utility-scale electrical engineering deliverables, including single-line diagrams (SLDs), overall electrical layouts, grounding designs, and cable routing plans
• Own electrical design integration across low-voltage and medium-voltage systems to ensure safe, compliant, and efficient operation
• Specify and integrate key equipment such as power conversion systems (PCS), battery systems, protection and control components, and related balance-of-plant elements
• Evaluate balance-of-plant (BoP) electrical systems and ensure proper interfacing with the broader project design
• Coordinate with interdisciplinary stakeholders to support construction, commissioning, and technical issue resolution
• Mentor project teams and provide technical guidance throughout design reviews and execution

Requirements

• Experience leading electrical design and technical reviews for utility-scale energy storage, solar, wind, or similar power generation projects
• Strong knowledge of medium-voltage and low-voltage electrical design practices, including grounding and cable systems
• Proficiency creating and reviewing SLDs and electrical layout documentation
• Ability to specify and integrate PCS and other BESS electrical components and protections
• Experience collaborating with cross-functional teams and supporting engineering through execution

Benefits

• Fully remote work environment
• Opportunity to mentor teams and shape technical design standards for utility-scale BESS projects
• Work on high-impact renewable energy infrastructure