Senior BESS Engineer | Hybrid Storage Projects Lead

Clearway Energy; Scottsdale (AZ); Hybrid; USD 140,000 - 195,000; Full time

Job summary

Clearway Energy is seeking a Principal Battery Energy Storage System (BESS) Engineer to lead engineering, safety, and procurement for standalone, hybrid, and co-located facilities. This hybrid role supports design, permitting, and commissioning across multiple US locations, with Scottsdale as the preferred site.

Responsibilities include refining EPC contracts, developing design requirements, and coordinating with development, construction, and operations teams to optimize BESS performance and

Qualifications

• 8+ years of experience in BESS engineering, integration, development, and commissioning for utility-scale BESS projects.
• Experience in writing technical specifications, performance requirements, and technical reports.
• Knowledge of electrical standards (UL/IEEE), Fire safety codes and standards, NEC, and interconnection standards.
• Familiarity with TCP/IP, Modbus/TCP, and other controls software/hardware platforms.
• Familiarity or experience with energy market applications and telemetry requirements.
• Knowledge of Power Plant Controller, EMS, BMS, and SCADA systems.
• Basic software programming skills, especially MS Excel and Python.
• Familiarity with NFPA codes and standards (855, 72, 68, 69), UL1973 and UL9540/A.
• Proficiency in working on a small team in a fast-paced environment and multitasking on multiple projects.
• Knowledge of utility equipment specifications.

Responsibilities

• Lead BESS platform development, refining contractual agreements and EPC obligations.
• Evaluate BESS design to meet safety, regulatory, and compliance standards.
• Provide technical expertise to project teams from origination through commissioning.
• Develop consensus on design and operational strategies across Development, Construction, and Operations.
• Serve as primary technical liaison with customers and energy storage suppliers.
• Develop tools for optimized BESS sizing, loads, and augmentation.
• Qualify new vendors and maintain technical supply specifications.
• Support RFIs, DOR coordination, and permitting/fire safety compliance.
• Coordinate design reviews, construction, and commissioning for BESS facilities.
• Capture lessons learned for continuous process improvement.

Skills

BESS engineering experience

Technical specifications writing

Electrical standards knowledge

Communications protocols (TCP/IP, Modb

Energy market applications & telemetry

Power Plant Controller/EMS/BMS/SCADA

MS Excel & Python

NFPA/UL safety standards

Team collaboration in fast-paced env

Utility equipment specifications

Job description

Clearway Energy is seeking a Principal Battery Energy Storage System (BESS) Engineer to lead engineering, safety, and procurement for standalone, hybrid, and co-located facilities. This hybrid role supports design, permitting, and commissioning across multiple US locations, with Scottsdale as the preferred site.

Responsibilities include refining EPC contracts, developing design requirements, and coordinating with development, construction, and operations teams to optimize BESS performance and