Technical Support Engineer - High Voltage

Location:

Tokyo, Tokyo, Japan

Job ID:

R0110830

Date Posted:

2026-02-05

Company Name:

HITACHI ENERGY JAPAN, LTD.

Profession (Job Category):

Engineering & Science

Job Schedule: 

Full time

Remote:

No

Job Description:

The opportunity

Hitachi Energy is a leader in high-voltage technology, offering a wide range of high-voltage products up to 1,200-kilovolt (kV) for AC and 1,100-kilovolt for DC. We help to enhance the safety, reliability and efficiency of power networks while minimizing environmental impact with following primary offerings for switchgears, circuit-breakers, generator circuit breakers, power quality products, surge arresters, disconnectors, instrument transformers and high-voltage service.

Key innovations in our High Voltage Products portfolio include active technology power quality & battery energy storage, eco-efficient switchgear, digital generator circuit-breaker, hybrid and integrated switchgear. Our technology leadership continues to facilitate innovations in areas such as ultra-high-voltage power transmission, enabling flexible smart grids and enhancing eco-efficiency.

How you’ll make an impact

• Your main scope of work and accountability would be basic design for substation (Especially for HV products) like Single line diagram, Equipment specification (Rating, Capacity, Environmental condition), High Voltage Switchgear product – GIS and AIS also in technical clarification with customers, factory and internal stakeholders.

• You will be into detail design supporting review equipment drawings and specifications, verify primary interface of equipment (bushing, cable and enclosure connections), verify secondary cable connections from schematic and logic drawings, check input/output, external communication and facilitate technical discussions with customers.

• You will be into technical support such as technical presentations during pre-sales activity, internal/external technical report, technical communication with factory, support quality assurance, including factory and site witness testing as needed.

• You will support for Investigation and introduction of new technologies and products into JP Non-UT Market and in comparison, and evaluation of IEC and Japanese standard to introduce HV product into JP Non-UT market.

• You will identify and assess gaps between IEC-based product specifications and Japanese regulatory requirements also prepare documentation and explanations for customers when deviations from Japanese standards require approval and do engage in technical clarifications and communications with customers regarding regulatory compliance.

• You will be responsible for ensure compliance with applicable external and internal regulations, procedures, and guidelines.

• Living Hitachi Energy’s core values safety and integrity, which means taking responsibility for your own actions while caring for your colleagues and the business.

Your background

• You hold a disability certificate.

• You hold a bachelor’s degree.

• Experience in the power electronics industrial area for min.5 years is preferred.

• Certificate and license related to electrical systems and/or engineering

• Knowledge of power grid industry and business aspect with basic knowledge of high voltage switchgear (CB, DS/ES, CT&VT, SA), power grid equipment and configuration, documentation and drawing related to power grid system, JEC, JEM, JIS standard and IEC standard, electrical business act and related regulation.

• Understand mechanical drawing and electrical schematic diagram, experience of business communication with Japanese industrial customers.

• Capability of pressure self-management and mind of work as a team.

• Preferred basic knowledge of protection relay, substation monitoring and control system, protection and automated control system for substation.

• Experience of electrical fault calculations and protection coordination, engineering for power grid facilities, basic design and detailed engineering for substation and submit documentation for METI and/or power utility company also holding experience to use ETAP or any other fault calculation software.

• Fair communication in English, Fluent speaking, writing and reading in Japanese.

More about us

Working Conditions and benefits:

Working hours: 900-1730 (1hr break). Flex time is applicable.

Hybrid working style applicable.

Benefits:

• Employment insurance, industrial injury insurance, health insurance, pension insurance

• Paid leave

• Bereavement leave

• Wedding leave

• Maternity leave

• Spousal maternity leave

• Parental leave

• Nursing care leave

Are you ready for an exciting new challenge? Does the above description sound like you? Welcome to appl Our selection process is continuous, and the position may be closed before the advertisement expires. So, if you are interested – don’t delay, apply today!  All other questions can be directed to Talent Acquisition Partner: Yini Cai, LinkedIn - https://www.linkedin.com/in/yini-cai/

Accessibility and reasonable accommodation

Qualified individuals with a disability may request a reasonable accommodation if you are unable or limited in your ability to use or access the Hitachi Energy career site as a result of your disability. You may request reasonable accommodations by completing a general inquiry form on our website. Please include your contact information and specific details about your required accommodation to support you during the job application process.

This is solely for job seekers with disabilities requiring accessibility assistance or an accommodation in the job application process. Messages left for other purposes will not receive a response.

Use of Al and automated tools in recruitment

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.

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