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

Linked In JD：After-sales Service Engineer - US Market (Dry-Type / Oil-Immersed Transformer) About Us

We 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.

• 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