High Voltage (HV) Test Engineer - Transfomers

HITACHI ENERGY USA INC

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.

• 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.

• 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%.

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.

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, where required, asked to provide consent prior to the initiation of any such checks.

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As part of our recruitment process, Hitachi Energy uses digital and automated tools, including Al-supported solutions, to assist with activities such as application screening, job matching, and interview scheduling. These tools are designed to support our recruiters and do not replace human decision-making. Candidate data is processed in accordance with applicable data protection and employment laws as well as Hitachi's Global Data Privacy Notice.