Senior Electrical Engineer - Auxiliary Power Systems

Hitachi Energy; Raleigh (NC); On-site; USD 110,000 - 160,000; Full time

Benefits offered by this job

Health Coverage

401(k) Plan

Paid Time Off

Tuition Reimbursement

Parental Leave

Job summary

Hitachi Energy is seeking a Senior Auxiliary Power Engineer to design MV and LV auxiliary power systems supporting large-scale transmission and grid integration projects. You will develop diagrams, load lists, equipment specs, and perform ETAP analyses while collaborating with project teams, suppliers, and customers to deliver reliable, cost-effective solutions.

The role requires expertise in AC/DC auxiliary systems, cable sizing, and protection coordination, with hands-on ETAP experience and

Qualifications

• Minimum 5 years of experience in auxiliary power and related electrical design.
• Strong knowledge of low and medium voltage power distribution systems.
• Hands-on ETAP experience; Aspen or SKM acceptable.
• Experience with cable sizing, protection coordination, battery sizing, load flow analysis.
• Candidate must already have authorization to work in the United States.

Responsibilities

• Design MV and LV auxiliary power systems for large-scale transmission and grid integration projects.
• Develop single-line diagrams, load lists, equipment specifications, and engineering documentation.
• Perform ETAP studies including short circuit, load flow, protection coordination, and arc flash analysis.
• Design AC and DC auxiliary systems, including distribution panels, battery systems, chargers, UPS systems, and transfer switches.
• Conduct cable sizing, equipment sizing, and material estimation activities.
• Review supplier drawings, support factory acceptance testing, and provide commissioning support.
• Collaborate with electrical lead engineers, project teams, suppliers, and customers to deliver successful project outcomes.
• Drive continuous improvement by developing and enhancing engineering templates, standards, and best practices.

Skills

MV and LV power systems

Single-line diagrams

ETAP

AC/DC auxiliary systems

Cable sizing

Protection coordination

Education

Electrical Engineering

Tools

ETAP

Aspen

SKM

Job description

Senior Auxiliary Power Engineer

The Opportunity

At Hitachi Energy, we're helping shape a more sustainable, reliable, and resilient energy future. As demand for electricity continues to grow through data centers, electrification, and grid modernization, utilities are turning to innovative technologies that increase transmission capacity, improve power quality, and strengthen grid stability. This role offers the opportunity to contribute directly to large-scale transmission and grid integration projects that help keep power flowing to communities, businesses, and critical infrastructure across North America. These are funded, high-impact projects supporting some of the region's largest utility customers and driving significant business growth.

As a Senior Auxiliary Power Engineer, you will play a key role in designing the low and medium voltage auxiliary power systems that support high-voltage transmission and FACTS installations. You will work alongside experienced engineering professionals on complex projects, applying your technical expertise to solve challenging engineering problems while helping deliver reliable, cost-effective solutions for our customers. This hybrid position offers flexibility to work from our Raleigh or Cary, North Carolina offices, with a typical schedule of two to three days onsite per week. Responsible to ensure compliance with applicable external and internal regulations, procedures and guidelines.

How You'll Make an Impact

• Design MV and LV auxiliary power systems for large-scale transmission and grid integration projects.


• Develop single-line diagrams, load lists, equipment specifications, and engineering documentation.


• Perform ETAP studies including short circuit, load flow, protection coordination, and arc flash analysis.


• Design AC and DC auxiliary systems, including distribution panels, battery systems, chargers, UPS systems, and transfer switches.


• Conduct cable sizing, equipment sizing, and material estimation activities.


• Review supplier drawings, support factory acceptance testing, and provide commissioning support.


• Collaborate with electrical lead engineers, project teams, suppliers, and customers to deliver successful project outcomes.


• Drive continuous improvement by developing and enhancing engineering templates, standards, and best practices.

Your Background

• Bachelor’s, Master’s, or PhD in Electrical Engineering.


• Minimum 5 years of experience in auxiliary power, industrial power systems, utility engineering, substation engineering, or related electrical design environments.


• Strong knowledge of low and medium voltage power distribution systems, including AC and DC auxiliary systems.


• Hands-on experience using ETAP for electrical system studies; experience with equivalent software such as Aspen or SKM may also be considered.


• Experience with cable sizing, protection coordination, battery sizing, load flow analysis, and related electrical studies.


• Candidate must already have authorization to work in the United States.

What We Offer

• Comprehensive Health Coverage – Medical, dental, vision, and prescription plans


• Retirement Savings – 401(k) with company match and additional contributions


• Paid Time Off – Flexible PTO, paid holidays


• Professional Growth – Tuition reimbursement and continuous learning programs


• Family Support – Parental leave, adoption assistance, and fertility benefits

More About Us

• Join a globally recognized technology leader advancing the world's energy transition through innovation, sustainability, and collaboration.


• Work on highly visible, funded projects supporting major North American utility customers while expanding your expertise in grid integration and transmission technologies.


• Grow your career alongside talented professionals in an inclusive environment that values learning, development, safety, integrity, and continuous improvement.

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.

Publication date : 2026-08-21