Commissioning Engineer

<div class="content-intro"><p>ON.energy<span class="Apple-converted-space"> </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. With multiple gigawatts currently under construction, we are enabling grid-safe data centers. </p></div><p><strong><span data-contrast="none"><span data-ccp-parastyle="heading 10" data-ccp-parastyle-defn="{"ObjectId":"81d40c56-e640-5cda-82bb-83448542e906|1","ClassId":1073872969,"Properties":[469775450,"heading 10",201340122,"2",134234082,"true",134233614,"true",469778129,"heading10",335572020,"1",134224900,"true",335551500,"7949855",268442635,"36",335559739,"40",335560102,"0",469777841,"Arial",469777842,"Arial",469777843,"Arial",469777844,"Arial",469769226,"Arial"]}">Commissioning Engineer</span></span></strong><span data-ccp-props="{"335559739":40}"> </span></p>

<p style="line-height: 1;"><em><span data-contrast="none">Field Engineer / Systems Integrator — Mission-Critical Power & Energy Storage</span></em><span data-ccp-props="{"335559739":160,"335572079":6,"335572080":6,"335572081":7949855,"469789806":"single"}"> </span></p>

<p style="line-height: 1;"><strong><span data-contrast="none">Location: </span></strong><span data-contrast="none">Field-Based in United States (with travel to active project sites)</span><span data-ccp-props="{"335559739":40}"> </span></p>

<p style="line-height: 1;"><strong><span data-contrast="none">Travel Requirement: </span></strong><span data-contrast="none">>80%</span><span data-ccp-props="{"335559739":40}"> </span></p>

<p style="line-height: 1;"><strong><span data-contrast="none">Position Type: </span></strong><span data-contrast="none">Full-Time, Hourly (non-exempt, eligible for OT) + per diem eligible while traveling + eligibility for annual short-term incentive bonus (performance based)</span></p>

<p style="line-height: 1;"><strong><span data-contrast="none">Reports To: </span></strong><span data-contrast="none">Senior Commissioning Engineer</span><span data-ccp-props="{"335559739":40}"> </span></p>

<p style="line-height: 1;"><span data-contrast="auto">ON.energy is building the power infrastructure that makes the AI era possible. As AI demand surges past what the grid and traditional data centers can support, ON.energy provides a new class of power technology proven at gigawatt scale and trusted by the world’s leading cloud and AI companies. Our systems are already deployed across 2.5 GW of hyper-scale campuses, validated by top U.S. national labs, and certified for grid-safe operation by major utilities. With real products in the field, we’re scaling faster than the grid can, transforming power from a bottleneck into a competitive advantage for the companies building the future.</span><span data-ccp-props="{"335559738":200,"335559739":160}"> </span></p>

<p style="line-height: 1;"><strong><span data-contrast="none"><span data-ccp-parastyle="heading 20" data-ccp-parastyle-defn="{"ObjectId":"741782aa-652f-563c-bdc7-8d2b1b3f555d|1","ClassId":1073872969,"Properties":[469775450,"heading 20",201340122,"2",134234082,"true",134233614,"true",469778129,"heading20",335572020,"1",134224900,"true",335551500,"7949855",268442635,"26",335559739,"120",335559738,"260",469789806,"single",335572079,"4",335572080,"4",335572081,"12566463",335560102,"1",469777841,"Arial",469777842,"Arial",469777843,"Arial",469777844,"Arial",469769226,"Arial"]}">Overview</span></span></strong><span data-ccp-props="{"335559738":260,"335559739":120,"335572079":4,"335572080":4,"335572081":12566463,"469789806":"single"}"> </span></p>

<p style="line-height: 1;"><span data-contrast="auto">ON.energy is seeking a Commissioning Engineer (Field Engineer / Systems Integrator) to execute system-level commissioning, lead small on-site teams, and drive project milestones across ON.energy’s mission-critical, medium-voltage double-conversion UPS deployments built on utility-scale and C&I energy storage equipment (batteries, transformers, PCS, and controls). Reporting to a Senior Commissioning Engineer, you will be trusted to operate autonomously on-site — managing testing, troubleshooting, and documentation while maintaining the highest standards of safety and quality.</span><span data-ccp-props="{"335559739":120}"> </span></p>

<p style="line-height: 1;"><span data-contrast="auto">This is a high-travel, hands-on field role. You will spend the majority of your time on project sites across the U.S. and occasionally internationally. The ideal candidate is technically sharp, highly organized, and comfortable leading a small team in fast-paced construction environments.</span><span data-ccp-props="{"335559739":120}"> </span></p>

<p><strong>Key Responsibilities </strong></p>

<p><strong>Commissioning & Testing </strong><br>•    Execute system-level commissioning tests including functionality checks, network verification, and performance validation for data center, utility-scale, and C&I energy storage projects. <br>•    Support FAT validation and site acceptance testing (SAT) in coordination with OEM and owner engineers. <br>•    Perform functional testing of inverters, PCS, BMS, EMS/SCADA, protection relays, and associated BOS equipment. <br>•    Identify, document, and resolve commissioning deficiencies; manage punch lists through to closeout. <br> <br><strong>Team & Project Leadership </strong><br>•    Manage a subset of the on-site commissioning team (2–10 people), autonomously driving project initiatives as directed by the Senior Commissioning Engineer and management team. <br>•    Coordinate daily with EPC contractors, OEM field service engineers, and the ON.energy project and engineering teams to resolve technical challenges and keep milestones on track. <br>•    Collaborate with internal and external teams to resolve technical challenges as they arise in the field. </p>

<p><strong>Controls & Systems Integration </strong><br>•    Review and validate configurations for PLC, SCADA, EMS, network infrastructure, and related control systems. <br>•    Conduct troubleshooting for control system issues, network faults, and inverter problems. <br>•    Verify system configuration against design drawings, specifications, and interconnection requirements. <br>•    Support integration and testing of SCADA/DMS communications (DNP3, Modbus, etc.) </p>

<p><strong>Safety & Quality </strong><br>•    Foster and maintain a culture of safety for all team members on site, owning the Job Hazard Analysis (JHA) and Lockout/Tagout (LOTO) programs. <br>•    Support safety inspections and risk assessments throughout the commissioning lifecycle. <br>•    Ensure commissioning activities comply with NFPA 70E, NEC, IEEE, and applicable NERC/FERC standards. <br>•    Provide field reports and maintain thorough, audit-ready documentation for all commissioning activities. </p>

<p><strong>Required Qualifications </strong><br>•    3–6 years of hands-on commissioning experience on BESS, solar + storage, or utility-scale renewable energy projects. <br>•    Direct experience with battery storage systems including BMS, PCS/inverter, and EMS/SCADA commissioning. <br>•    Proficiency reading and interpreting electrical schematics, single-line diagrams, and P&IDs. <br>•    Working knowledge of protection relay testing, CT/PT verification, and DC/AC high-voltage systems. <br>•    Strong technical writing skills; ability to produce clear field reports and commissioning documents. <br>•    Valid driver’s license and US passport <br>•    Ability to travel >80% of the time.</p>

<p><strong>Preferred Qualifications </strong><br>•    Hands-on experience with one or more major BESS OEMs (Tesla Megapack, BYD, CATL, Sungrow, or similar). <br>•    Familiarity with SCADA communication protocols: DNP3, Modbus TCP/RTU, etc <br>•    Familiarity with utility interconnection processes (distribution and transmission). <br>•    NETA, NICET, or relevant electrical certifications. <br>•    OSHA 10 or OSHA 30 certification; NFPA 70E training. <br>•    Bachelor’s degree in electrical engineering, Power Systems, or a related technical field (or equivalent field experience). </p>

<p><strong>Soft Skills </strong><br>•    Technically sharp, highly organized, and comfortable leading a small team in fast-paced construction environments. <br>•    Strong communicator across EPC, OEM, and internal stakeholders. <br>•    Autonomous and accountable. <br>•    Safety- and quality-first mindset. <br> </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 </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"> </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>