Senior BESS Engineer — Fleet Battery Systems & Diagnostics

Enel North America Inc.; Dallas (TX); On-site; USD 120,000 - 170,000; Full time

Benefits offered by this job

Healthcare for you and family

Life insurance

Disability benefits

401k with company match

PTO & holidays

Professional development allowance

Job summary

Enel North America is seeking a BESS Engineer to serve as the fleet technical SME for battery energy storage systems. You will own BESS architecture, BMS, HVAC and fire-safety topics, lead complex RCA using analytics, and translate findings into practical SOPs, response plans and technical guidance for sites and O&M teams.

You will collaborate with OEMs, site teams and specialists to implement sustainable improvements, manage warranty and SOH analyses, and drive capacity testing, firmware

Qualifications

• Bachelor's degree in engineering or closely related field.
• Minimum 5 years of field experience in utility-scale BESS or battery systems.
• OEM battery/BMS training or recognized battery-safety certification preferred.
• Strong knowledge of BESS architecture, battery systems, BMS, HVAC and fire safety systems.
• Strong knowledge of Advanced fault diagnostics and RCA.
• Strong knowledge of Battery SOH, warranty evidence, degradation and capacity testing.
• Strong knowledge of Firmware, SOC calibration and technical change validation.
• Experience in SOPs and technical contingency plan development.

Responsibilities

• Provide fleet technical ownership for battery systems, BMS, HVAC, fire safety systems and containers, cell, module and rack failure topics.
• Lead advanced troubleshooting and RCA using predictive and advanced analytics tools, alarms, trends, event logs, test results and field evidence.
• Develop and maintain SOPs, troubleshooting guides and response plans for recurring or high-risk BESS issues.
• Manage technical evaluation of battery warranty and state-of-health topics and coordinate supporting evidence.
• Define and support capacity testing, battery balancing, SOC calibration scheduling, firmware management and post-change validation.
• Monitor serial defects and systemic failure patterns and recommend risk-based actions.
• Develop or govern related predictive tools and translate insights into field guidance and maintenance improvements.
• Support technical specifications & studies, lifecycle assessments and asset improvement initiatives.
• Support supplier reviews, warranty evidence, specifications and asset improvement projects.
• Contribute technical input to due diligence, commissioning support and new-asset integration.
• Participate in incident response, expert teams and supplier technical reviews.
• Maintain technical records, lessons learned and concise status reporting.

Skills

Electrical Eng

Mechanical Eng

Chemical Eng

Energy Eng

5+ years experience

BMS Training

BESS Architecture

Fault Diagnostics

SOH & Warranty

Firmware & SOC

SOP Development

Problem Solving

Technical Communication

Cross-Functional

Ownership

Technical Writing

Driver's License

Travel Flexibility

Education

Engineering degree (Electrical/Mechanical/Chemical/Energy)

Job description

Enel North America is seeking a BESS Engineer to serve as the fleet technical SME for battery energy storage systems. You will own BESS architecture, BMS, HVAC and fire-safety topics, lead complex RCA using analytics, and translate findings into practical SOPs, response plans and technical guidance for sites and O&M teams.

You will collaborate with OEMs, site teams and specialists to implement sustainable improvements, manage warranty and SOH analyses, and drive capacity testing, firmware