Senior Electrical Engineer – Battery Systems, Controls & EMS Integration at ON.energy

<div class="content-intro"><p>ON.energy<span class="Apple-converted-space">&nbsp;</span>is setting the standard for large load interconnection. ON’s patented AI UPS™ is a medium-voltage UPS that serves as a firewall, protecting the data center from the grid, and the grid from the data center.&nbsp;With multiple gigawatts currently under construction, we are enabling grid-safe data centers.&nbsp;</p></div><p><strong>Location: </strong>United States, Remote with 30% travel, domestic and international</p> <p><strong>Travel:</strong> 25-30% required travel&nbsp;</p> <p>As a <strong>Senior Electrical Engineer – Battery Systems, Controls &amp; EMS Integration</strong>, 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.</p> <p><strong>Key Responsibilities:</strong></p> <p>· Battery sizing and lifecycle modeling</p> <p>· BESS vendor model review and validation</p> <p>· EMS and Plant Controller integration</p> <p>· Controls strategy validation</p> <p>· Inverter/PCS modeling experience</p> <p>· SCADA and operational analytics</p> <p>· Python, VS Code, Jupyter Notebooks, Git</p> <p>&nbsp;</p> <p><strong>Required Qualifications:</strong></p> <p>· <strong>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.</strong></p> <p>· <strong>Battery, PCS &amp; Controls Expertise: </strong>Deep knowledge of battery sizing, lifecycle modeling, controls strategy validation, and BESS vendor model review in utility-scale energy storage environments including experience with <strong>PSCAD </strong>and&nbsp; <strong>MATLAB</strong>.</p> <p>· <strong>Systems Integration:</strong> Proven ability to lead EMS and Plant Controller integration efforts, including SCADA configuration and operational optimization for BESS deployments.</p> <p>· <strong>Software Proficiency:</strong> Working knowledge of Python, VS Code, Jupyter Notebooks, and Git for engineering analysis and operational analytics.</p> <p>· <strong>Communication:</strong> Ability to coordinate effectively with EMS vendors, controls engineers, and cross-functional teams to deliver reliable and optimized energy storage solutions.</p> <p>&nbsp;</p> <p><span data-ccp-props="{}">#LI-JW1</span></p><div class="content-conclusion"><hr> <p><strong>For US-based roles - What you’ll get:</strong></p> <ul> <li>Competitive salary + annual performance-based bonus eligibility</li> <li>Medical, dental, and vision insurance</li> <li>401(k) with company match</li> <li>Paid time off and company holidays&nbsp;</li> </ul> <p><strong>For Mexico-based roles - What you’ll get:</strong></p> <ul> <li>Competitive salary + annual performance bonus eligibility</li> <li>Christmas Bonus (Aguinaldo): 30 days</li> <li>Major medical expenses and life insurance</li> <li>Paid time off and holidays (per local policy)</li> </ul> <p><strong>For all roles:</strong></p> <ul> <li>Professional development and growth opportunities</li> <li>Opportunity to grow with a mission-driven team shaping the future of clean energy</li> <li>Equal Opportunity: ON.energy is committed to equal employment opportunity and to maintaining a work environment free of harassment, discrimination, or retaliation.</li> <li>Benefits vary by role and location and are subject to change.</li> </ul> <p><strong data-start="453" data-end="471">Agency Notice:</strong><span class="Apple-converted-space">&nbsp;</span>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.</p></div>