​The ESS Services Engineer is responsible for supporting the Operations and Maintenance (O&M) of utility-scale and commercial Battery Energy Storage System (BESS) projects. This role plays a critical part in ensuring successful project handover into long-term service agreements (LTSA), as well as providing ongoing technical support throughout the operational lifecycle.

The position requires strong expertise in system integration, power systems, and energy storage technologies, with a focus on performance optimization, troubleshooting, and continuous improvement.

Key Responsibilities

• Support the transition of projects from construction/commissioning into long-term O&M, ensuring all engineering actions and punch list items are completed.

• Review and validate project documentation, including design specifications, system interfaces, block diagrams, and technical drawings.

• Provide advanced technical support for troubleshooting, diagnostics, and root cause analysis (RCA) during system operations.

• Act as a technical interface with customers, subcontractors, and field teams to resolve complex system issues.

• Interpret and validate single-line diagrams, schematics, and switching procedures for BESS systems.

• Ensure compliance with project specifications, integration requirements, and applicable industry standards.

• Develop and implement work instructions and action plans for field technicians and service teams.

• Coordinate and support annual performance testing, including report generation for clients.

• Contribute technical input during bid and proposal phases and provide feedback from operational projects to improve future designs.

• Apply engineering best practices and lessons learned to improve system performance and reliability.

• Create technical documentation, including service bulletins and engineering reports.

• Support continuous improvement initiatives through issue tracking and product feedback processes.

Technical Scope

• Battery Energy Storage Systems (BESS)

• Power Conversion Systems (PCS)

• Plant/Park Controllers (PPC) and SCADA systems

• Power Management Systems (PMS)

• AC and DC coupled system architectures

• System integration and controls

Qualifications

• Bachelor’s degree in Electrical Engineering, Systems Engineering, or a related field

• Minimum of 8 years of professional experience in electrical or systems engineering

• Strong knowledge of power systems, energy storage, and control systems

• Experience with BESS integration and system-level design

Required Skills & Knowledge

• Solid understanding of power generation and energy markets

• Ability to analyze complex systems and perform root cause analysis

• Experience working with technical documentation, schematics, and system diagrams

• Strong communication skills with the ability to interface with customers and cross-functional teams

• Knowledge of industry standards such as NFPA 855, UL9540, UL9540A, UL1973, UL1642, UL1741SA, or similar