After Sales Engineer-US Market; Dry-Type​/Oil-Immersed Transformer

Location：United States（Data Center Projects）

Employment Type

：Full-time Department：Overseas After-sales Service About UsWe are a Chinese leading manufacturer of medium & high voltage power transformers and electrical equipment.

To support our data center projects across the US, we are hiring local after-sales service engineers to take full ownership of transformer commissioning, testing, acceptance and warranty support for our customers in North America.

• Equipment Inspection & Technical Disclosure
  - Handle site acceptance of medium/high voltage dry-type & oil‑immersed transformers (15kV/35kV) for data centers; verify equipment parameters, accessories and factory documents, inspect for transit damage, and provide installation technical disclosure to construction crews per manufacturer standards to prevent installation‑caused failures.
• Full Commissioning & Testing
  - Independently perform complete acceptance tests including DC resistance, turns ratio, insulation, withstand voltage and grounding; verify tap changers, temperature control systems, cooling fans and protection accessories; match on‑site system voltage parameters to ensure performance meets factory standards and US codes.
• System Interlock Commissioning & Troubleshooting
  - Coordinate interlock testing with switch gear, secondary circuits and relay protection systems; verify wiring logic and protection settings; identify and rectify manufacturer‑side issues in wiring, function adaptation and parameter matching.
• Acceptance Support & Documentation
  - Cooperate with owner, EPC and third‑party NETA testing and local grid acceptance; provide factory qualification documents, test data and technical explanations; close out equipment issues raised during acceptance and issue compliant English test reports, commissioning records and after‑sales handover documents.
• On‑site Warranty & Trial Operation Support
  - Supervise no-load and load trial operation of transformers; monitor temperature rise, abnormal noise, oil level and control signals; anticipate and handle equipment abnormalities to ensure smooth commissioning.
• Technical Liaison & After‑sales Support
  - Act as the sole on‑site technical contact; respond to owner/EPC technical inquiries, explain operation, maintenance and service specifications, and report on‑site issues to headquarters with closed‑loop service ticket follow‑up.
• Warranty Maintenance & Fault Handling
  - Handle transformer fault diagnosis, repair and component replacement during warranty; maintain equipment operation and fault logs; provide routine on‑site after‑sales technical support and complete final project handover.

• Bachelor's degree or above in Electrical Engineering / Automation or related fields; age 25–50.

• 5+ years of hands‑on experience in transformer after‑sales, commissioning or testing, with strong knowledge of US‑standard 15kV/35kV data center dry‑type & oil‑immersed transformers (structure, factory standards, performance parameters); proficient in operating full HV testing equipment and independently completing commissioning, performance testing and data analysis.
• Familiar with US data center high‑redundancy power supply architecture, grid connection and trial operation codes; able to coordinate with construction, EPC and grid parties for equipment acceptance and commissioning.
• Proven ability to quickly diagnose and rectify common transformer faults (electrical, control, temperature, protection matching) on site.
• Fluent English for on‑site communication with foreign owners, EPC contractors and testing agencies; able to write English test reports, commissioning records and acceptance documents per US acceptance standards (NEC / NFPA 70E / OSHA  compliance).
• US local resident or authorized to work in the US; willing to travel / be stationed at data center project sites.

• What We Offer Competitive salary + project allowance & performance bonus
• Full technical support from China HQ: product documentation, test data, training
• Long‑term career development with the company's US market expansion
• Visa / relocation support as applicable