Job Ref: # 9735016
Date Posted: 11/7/2025
City, State: Jacksonville, Florida
Description
As an ESS Services Engineer, you will play a critical role supporting Operations & Maintenance (O&M) activities for advanced Battery Energy Storage Systems (ESS). You will ensure successful transition of ESS projects into Long-Term Service Agreements (LTSA), closing engineering punch-list items, validating key documentation, and enabling seamless performance through the equipment lifecycle.
In this hands-on engineering role, you'll provide technical expertise to internal teams, customers, and subcontractors-diagnosing system issues, improving performance, coordinating testing, and driving sustainable solutions. This position offers the opportunity to be at the forefront of the clean-energy transition, supporting systems integration, power controls, and distributed energy resource technology.
Responsibilities
- Ensure ESS projects are properly prepared for transition into LTSA and O&M lifecycle
- Resolve punch-list / open engineering action items after commissioning
- Review and validate engineering documentation, including specifications, block diagrams, system interfaces, and single-line drawings
- Provide troubleshooting and root cause analysis support for system performance issues
- Understand and support integration between BESS, PCS, PPC/SCADA, and PMS systems
- Validate system performance and maintain compliance with customer and project requirements
- Support bid/proposal teams by answering technical questions and supplying engineering insight
- Coordinate annual performance testing and contribute test reports for customer use
- Create work instructions and action plans for technicians, customers, and authorized agents
- Develop service bulletins and lead root-cause evaluations to maintain safe and reliable operations
- Support product improvement initiatives, best engineering practices, and lessons-learned feedback loops
- Ensure regulatory compliance with applicable codes and standards including NFPA 855, UL9540/9540A, UL1973, UL1642, and UL1741SA
Requirements
- Bachelor's degree in Engineering
- 8+ years of Systems and/or Electrical Engineering experience
- Experience in AC/DC-coupled ESS system optimization, integration, and controls
- Knowledge of power systems, battery systems, and controls
- Understanding of power generation and energy industry fundamentals
- Ability to interpret engineering documentation including SLDDs, schematics, and switching procedures
- Familiarity with integration of Battery + PCS/MVPS + PMS solutions
- Strong communication skills with ability to interface with internal teams, customers, and subcontractors
Career Benefits & Growth
This role offers the opportunity to join a growing segment of the clean-energy industry and influence the development, operation, and continuous improvement of advanced battery storage systems. You'll collaborate with engineering, product, and field service teams while supporting innovative solutions that help shape the future of energy delivery.
We welcome diverse experience and value innovative thinkers who want to contribute to a mission-driven team. Candidates passionate about sustainability, customer success, and technical excellence will thrive.
Benefits:
Comprehensive benefits package including medical, dental, vision, 401(k) with 7% match, paid holidays, vacation, parental leave (maternal/paternal), adoption assistance, short-term disability, tuition reimbursement, employee referral awards, and discounted stock purchase.
Travel:
~50%
Job Posting
