Senior BESS Integration Engineer

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To apply, please submit your resume and a cover letter to [email protected].

• Applicants must currently reside on O’ahu and have valid U.S. work authorization.

Job Title: Senior Battery Energy Storage Systems (BESS) Integration Engineer
Location: Honolulu, Hawaii
Type: Full-Time

About the Job

We are seeking a highly skilled Senior Battery Energy Storage Systems (BESS) Integration Engineer to lead the integration, commissioning, optimization, and long-term performance management of advanced battery energy storage systems. This role serves as a technical authority across battery technologies, power conversion systems, energy management systems, controls integration, and operational performance.

The ideal candidate will bring hands-on experience with utility-scale and commercial energy storage projects and possess a deep understanding of battery behavior, system integration, commissioning, troubleshooting, and controls. This individual will support projects throughout the full lifecycle—from development and design review through commissioning and ongoing operations.

What You’ll Be Doing

Battery System Performance & Optimization

• Evaluate, diagnose, and optimize lithium-ion and other battery technologies.
• Develop and implement battery balancing, conditioning, and performance recovery strategies.
• Analyze battery degradation trends and recommend operational improvements.
• Review Battery Management System (BMS) configurations and operating parameters.
• Conduct root-cause analysis of battery performance issues and system faults.

BESS Integration & Commissioning

• Integrate battery systems with leading Power Conversion System (PCS) platforms, including Sungrow, SMA, Sinexcel, EPC Power, DynaPower, and others.
• Configure communications between BMS, PCS, EMS, SCADA, and utility systems.
• Support commissioning and startup activities for commercial and utility-scale BESS projects.
• Develop commissioning procedures, testing protocols, and acceptance criteria.
• Validate system functionality, safety, and operational readiness.

Controls & Energy Management

• Support configuration and optimization of energy management and control strategies, including:
  • Peak shaving
  • Load shifting
  • Demand response
  • Frequency regulation
  • Solar-plus-storage optimization
  • Microgrid operation
• Troubleshoot interactions between EMS, SCADA, PCS, and utility control systems.
• Support development of control sequences and operating logic.

System Performance & Technical Support

• Monitor fleet performance and identify optimization opportunities.
• Analyze operational and battery performance data.
• Develop corrective action plans for underperforming assets.
• Support warranty investigations and vendor technical discussions.
• Provide technical leadership during issue resolution and system improvements.

Project Development & Execution

• Review system designs, equipment specifications, and integration architectures.
• Support proposal development and technical due diligence efforts.
• Coordinate with EPC contractors, utilities, equipment manufacturers, and project stakeholders.
• Provide technical leadership throughout project lifecycle.

Required Qualifications

• Bachelor’s degree in Electrical Engineering, Mechanical Engineering, Energy Systems Engineering, or a related technical discipline.
• 5+ years of direct experience working with Battery Energy Storage Systems (BESS).
• Strong understanding of:
  • Battery Management Systems (BMS)
  • Power Conversion Systems (PCS)
  • Energy Management Systems (EMS)
  • SCADA systems
  • Utility interconnection requirements
• Experience balancing, conditioning, and troubleshooting lithium-ion battery systems.
• Experience integrating batteries with multiple inverter and PCS manufacturers.
• Familiarity with industrial communication protocols, including Modbus, DNP3, SunSpec, and CANBus.
• Strong analytical, troubleshooting, and problem-solving capabilities.

Preferred Qualifications

• Experience supporting utility-scale or commercial energy storage projects.
• Knowledge of UL 9540, UL 9540A, NFPA 855, IEEE 1547, and National Electrical Code (NEC) requirements.
• Experience with solar-plus-storage systems.
• Familiarity with microgrid controls and distributed energy resource integration.
• Experience commissioning battery storage systems larger than 1 MW.
• NABCEP Energy Storage Certification or equivalent industry certification.
• Experience working across multiple battery, PCS, EMS, and SCADA platforms.

Compensation

$120,000–$150,000+ annually, depending on experience, project scale expertise, and utility-scale BESS background.

Success in This Role

Success will be measured by:

• Successful commissioning and integration of BESS projects.
• High system availability and operational performance.
• Reduction of battery degradation and performance issues.
• Timely resolution of technical challenges.
• Optimization of energy throughput and system efficiency.
• Compliance with safety, operational, and regulatory requirements.