Sr. Commissioning Field Service Engineer (UPS)

Marietta, GA, United States | Posted on 03/15/2026 AI Talent Now, LLC is a powerhouse in direct-hire talent acquisition, connecting exceptional talent with industry-leading organizations across IT, Engineering, Financial Services & Fintech, and Manufacturing & Robotics. Headquartered in Atlanta, Georgia, we proudly serve clients and candidates nationwide. Job Description A top-tier leader in critical power solutions is actively seeking a Senior Commissioning Field Service Engineer (UPS) to join their team in Marietta, GA. This is an exciting opportunity to work on cutting-edge power systems and make a real impact in the field. (UPS) Uninterruptible Power Supply / Critical Power Focus – 5+ Years Experience Location: Marietta, GA (Must reside within 1 hour or be willing to relocate) Position Summary We are seeking a senior-level Data Center Commissioning Technician with deep expertise in UPS systems, critical power infrastructure, and large-scale load testing. This is not a preventative maintenance or parts replacement role. This position requires a commissioning professional who can lead testing events, interface confidently with general contractors and clients, and execute high-risk power transitions in live environments. The ideal candidate has completed multiple full data center commissioning projects, understands commissioning levels (L2–L5), and has hands‑on experience executing MW-scale load bank testing and generator-to-UPS transfers under load. Key Responsibilities Lead and execute data center commissioning activities (Levels L2–L5) Perform and oversee large-scale load bank testing (500kW to 1MW+) Commission and validate parallel redundant UPS systems (N+1, 2N) Perform static and maintenance bypass transitions without load disruption Validate synchronization (voltage, frequency, phase alignment) Commission lithium‑ion and VRLA battery systems Perform battery discharge testing and string balancing verification Identify and troubleshoot DC ground faults and bypass events under load Integrate UPS systems with BMS / EPMS platforms Execute commissioning from approved MOPs; redline and update documentation Ensure compliance with ISO, NFPA, and NEC standards Enforce safety standards and stop work when unsafe conditions arise Lead multi‑stakeholder commissioning events (GC, EC, CxA, client) Required Experience 5+ years of UPS field service experience 3+ years specifically in commissioning Completion of at least 3 full data center commissioning projects Experience executing load bank tests above 500kW (1MW+ preferred) Experience with generator-to-UPS transfers under load Experience working in live data center environments Demonstrated ability to lead commissioning events UPS Platforms (Must Have Experience with Multiple) Eaton Toshiba Riello / Legrand Trimod Static bypass vs. maintenance bypass operation Synchronization requirements (voltage, phase, frequency) Break-before-make vs. make-before-break transitions Wrap‑around bypass systems kVA to kW calculations (including 0.9 PF systems) Load Banking & Testing Cable sizing and Cam-Lok verification Arc flash boundary understanding Power Quality Analyzer (PQA) placement Cooling capacity verification Generator capacity validation Battery Systems Commissioning lithium‑ion systems (Samsung SDI, Saft, Narada, etc.) VRLA battery systems Float voltage tolerances on 480V DC strings Ability to lead under pressure in high‑visibility environments Confident communicator with contractors and clients Strong decision‑making during live power events Willingness to stop testing if safety risks are identified Highly detail‑oriented with documentation and QA/QC Documentation & Process Experience Experience executing and redlining MOPs (Method of Procedure) Familiarity with QA/QC documentation and test scripts Experience preparing commissioning sign‑off packages Knowledge of ISO / NFPA / NEC compliant environments Preferred / Elite Experience (Highly Desired) Closed‑transition generator testing Integration of BMS / EPMS during commissioning Travel Travel required as needed for commissioning projects Must be comfortable with regional or national travel Compensation Compensation will be commensurate with experience and commissioning leadership capability. This is a senior‑level position and will be structured competitively based on technical depth and project leadership experience. Requirements Ideal Candidate Profile 5–10 years UPS field service background 3+ years dedicated commissioning experience Has led or executed 1MW+ load testing Comfortable leading MOP execution Has experienced real‑world generator transfer challenges Strong knowledge of both Lithium‑ion and VRLA battery systems Confident presence in front of GCs and clients Competitive Pay Three medical plan options with employer premium contributions that start on day one. HSA. 401K plan with 100 % match on the first 4% of employee contribution. #J-18808-Ljbffr