Senior Electrical Engineer – Battery Systems, Controls & EMS Integration

ON.energy; Miami (FL); Hybrid; USD 120,000 - 180,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

401(k) with company match

Paid time off

Job summary

ON.energy is seeking a Senior Electrical Engineer – Battery Systems, Controls & EMS Integration to lead design, validation, and optimization of utility-scale BESS projects for data centers and grid applications. You will drive battery sizing, evaluate technologies, validate inverter performance, and integrate EMS, Plant Controllers, and SCADA to deliver reliable energy storage solutions.

Reporting to the Chief Electrical Engineer, this hybrid role requires strong engineering analysis,

Qualifications

• 8+ years electrical engineering with battery systems and EMS/Plant Controller integration.
• Deep knowledge of battery sizing, lifecycle modeling, controls validation, and BESS vendor model review (PSCAD/MATLAB).
• Experience with SCADA configuration and energy storage deployments.

Responsibilities

• Battery sizing and lifecycle modeling
• BESS vendor model review and validation
• EMS and Plant Controller integration
• Controls strategy validation
• SCADA and operational analytics

Skills

Battery systems

BESS vendor eval

EMS integration

SCADA

Python

Git

Communication

Tools

PSCAD

MATLAB

Job description

Senior Electrical Engineer – Battery Systems, Controls & EMS Integration

ON.energy is building the backbone of energy and AI infrastructure powering grid-safe data centers and mission-critical facilities. The company supplies and operates hyperscale power systems that solve the toughest resilience challenges, delivering custom solutions for AI data centers, mission-critical facilities, and front-of-the-meter assets. ON recently announced a 5GW partnership, with 3GW currently under construction across multiple hyperscale data center campuses. With patented technology and proprietary software, ON.energy develops projects worldwide that set new benchmarks for resilience.

Location: Tysons, VA / Atlanta, GA / Miami, FL / East Coast

Schedule: Hybrid in Tysons (or) regular visits to Tysons if East Coast

Travel: 25-30% required travel (outside of travel to Tysons)

As a Senior Electrical Engineer – Battery Systems, Controls & EMS Integration, you will provide technical leadership for the design, validation, and optimization of utility-scale Battery Energy Storage System (BESS) projects supporting next-generation data center and grid applications. Reporting to the Chief Electrical Engineer, you will lead battery sizing, evaluate BESS technologies, validate inverter/PCS performance, and drive the integration of EMS, Plant Controllers, and SCADA systems to ensure reliable, high-performing energy storage solutions. This is a highly collaborative role that combines advanced engineering analysis, controls expertise, and operational optimization to shape the future of large-scale energy infrastructure.

Key Responsibilities

• Battery sizing and lifecycle modeling


• BESS vendor model review and validation


• EMS and Plant Controller integration


• Controls strategy validation


• SCADA and operational analytics

Required Qualifications

• 8+ years of electrical engineering experience, with a focus on battery systems, BESS vendor evaluation, inverter/PCS performance validation, and EMS or Plant Controller integration.


• Battery & Controls Expertise: Deep knowledge of battery sizing, lifecycle modeling, controls strategy validation, and BESS vendor model review in utility-scale energy storage environments including experience with PSCAD and MATLAB.


• Systems Integration: Proven ability to lead EMS and Plant Controller integration efforts, including SCADA configuration and operational optimization for BESS deployments.


• Software Proficiency: Working knowledge of Python, VS Code, Jupyter Notebooks, and Git for engineering analysis and operational analytics.


• Communication: Ability to coordinate effectively with EMS vendors, controls engineers, and cross-functional teams to deliver reliable and optimized energy storage solutions.

For US-based roles - What you’ll get

• Competitive salary + annual performance-based bonus eligibility


• Medical, dental, and vision insurance


• 401(k) with company match


• Paid time off and company holidays

For Mexico-based roles - What you’ll get

• Competitive salary + annual performance bonus eligibility


• Major medical expenses and life insurance


• Paid time off and holidays (per local policy)

For all roles

• Professional development and growth opportunities


• Opportunity to grow with a mission-driven team shaping the future of clean energy


• Equal Opportunity: ON.energy is committed to equal employment opportunity and to maintaining a work environment free of harassment, discrimination, or retaliation.


• Benefits vary by role and location and are subject to change.

Agency Notice: ON.energy does not accept unsolicited resumes from staffing agencies, search firms, or third-party recruiters. Resumes submitted without a fully executed Master Services Agreement (MSA) and a written request from an authorized member of our Talent Acquisition team will be considered the property of ON.energy. No placement fees or compensation will be paid for unsolicited candidate submissions.