Location: Earth City, Missouri, United States Job ID: R0141033 Date Posted: 2026-09-08 Company Name: HITACHI ENERGY USA INC Profession (Job Category): Engineering & Science Job Schedule: Full time Remote: No Job Description: Company HITACHI ENERGY USA INC The Opportunity The High Voltage Test Engineer supports Transformer Services operations by performing high voltage testing activities at customer sites and supporting technical field operations.
Based in Earth City, Missouri, this role is responsible for operating mobile high voltage test equipment, conducting electrical tests, evaluating test results, and supporting transformer service activities. The position involves identifying sources of partial discharge, developing corrective action plans, analyzing electrical test and oil DGA data, maintaining test systems, and preparing technical reports.
Working closely with customers, field crews, and engineering teams, you will help ensure the accurate assessment and testing of transformer equipment that supports reliable power system operation. How You’ll Make an Impact Set up and operate a mobile high voltage test trailer system. Perform applied voltage, induced voltage, partial discharge localization, and temperature rise testing. Investigate potential sources of partial discharge and develop corrective action plans.
Analyze electrical test data and oil DGA results. Calibrate testing equipment. Maintain the electrical and electronic components of the mobile test system. Prepare technical test reports and test plans in support of proposal activities. Provide technical support to field crews and communicate with customers. Responsible to ensure compliance with applicable external and internal regulations, procedures, and guidelines.
Your Background Candidate must already have work authorization that would permit them to work for Hitachi Energy in the United States. Bachelor’s degree in engineering or related field with five or more years of experience, or a combination of studies and ten years or more of transformer experience. Experience performing transformer testing and supporting field service operations. Knowledge of IEEE, IEC, and NEMA industry standards.
Experience using Microsoft Office 365 and preparing technical reports. Hands-on experience performing low voltage testing such as winding resistance, turns ratio, excitation, and power factor is preferred. Willingness to travel. If based Earth City, MO travel expectations are 40%-50%, If based remote, travel expectations between 50%-60%. More About Us This role offers the opportunity to work directly with engineering and field service teams while gaining exposure to transformer testing and service activities across customer sites.
Work on innovative energy technologies. Collaborate with experienced professionals. Access learning and development opportunities. Participate in health and retirement benefits. Benefit from paid leave and flexibility programs. Background Screening and Security Checks As part of the hiring process, Hitachi Energy conducts pre-employment background checks that may include verification of employment history, education, criminal records, and other relevant information, in accordance with applicable laws.
For certain roles, particularly those involving access to sensitive information, financial responsibilities, client data, regulated environments, or security-sensitive functions, additional or more comprehensive background or security screenings may be required. These may include, but are not limited to, enhanced criminal history checks, credit history reviews (where legally permissible), sanctions screening, or other due diligence measures aligned with the responsibilities of the position.
The scope and depth of any background or security review will be determined based on the nature of the role and business necessity and will always be conducted in compliance with applicable federal, state, and local laws. Candidates will be notified and, wh