High Voltage Substation Design Engineer

Hargrove is hiring a licensed Electrical Engineer (PE) with strong experience in high-voltage substation design to join our growing team. This role supports projects up to 345kV

Locations & Work Flexibility

• Primary location: Mobile, AL

• Additional office options: TX, LA, SC, GA, PA

• Hybrid or interoffice execution support may be available

• Relocation assistance may be offered based on role and location

Job Summary

Hargrove Engineers & Constructors is seeking a licensed Professional Electrical Engineer (PE) with extensive experience in high‑voltage substation systems to join our growing team. This role focuses on the physical design, analysis, and execution of substations up to 345kV , supporting projects from early conceptual development through construction and commissioning.

The ideal candidate is a technically strong engineer who brings leadership capability, sound engineering judgment, and a commitment to quality, safety, and mentoring the next generation of engineers.

Key Responsibilities

Substation Physical Design

Perform complete physical design of high‑voltage substations in compliance with applicable codes, standards, and client requirements, including:

• General arrangement drawings

• Equipment, electrical, and control building layouts

• Elevation and section views

• Cable trench and duct bank design

• Equipment grounding systems and ground grids

• Lightning protection systems

• Conduit and cable tray routing

• AC and DC station service systems

• Substation area lighting systems

• Bills of Materials (BOMs)

Electrical Studies & Analysis

Conduct and/or oversee detailed electrical calculations and studies, including:

• Substation grounding calculations and touch/step voltage analysis

• Pre‑ and post‑energization harmonic studies

• Short‑circuit and fault current analysis

• Bus bar mechanical force calculations

• Load flow and reactive power flow analysis

• Harmonic filter analysis

• NERC compliance evaluations

• Protective relay coordination studies

• Transient analysis

• Transmission slack‑span calculations

• Corona performance studies

Equipment Specifications & Procurement

• Develop equipment and material specifications for outdoor switchyard equipment up to 345kV

• Prepare procurement specifications and design scopes for engineered equipment, including:

• Vacuum and SF₆ circuit breakers

• Motor‑operated and manual gang‑operated switches

• Current and potential transformers (CTs/PTs)

• Station service transformers

• Insulators and surge arresters

• Station service battery systems

• Review, coordinate, and integrate vendor drawings and technical documentation

Project Execution & Collaboration

• Coordinate with vendors to ensure timely delivery of drawings, materials, and equipment in accordance with project schedules

• Develop conceptual and preliminary designs to support planning and cost estimating

• Prepare design documentation supporting procurement, construction, and operations/maintenance

• Participate in and/or lead client meetings and job site visits

• Support construction activities and commissioning as needed

• Adhere to Hargrove’s QA/QC processes across all design deliverables

Leadership & Mentorship

• Provide technical guidance and mentorship to junior engineers and designers

• Support the development of best practices and consistency in substation design execution

Qualifications

Required

• Bachelor of Science in Electrical Engineering

• Active Professional Engineer (PE) license

• Minimum 10 years of experience in substation physical design

• Proven experience with high‑voltage systems up to 345kV

• Strong organizational, documentation, and quality control skills

• Exceptional attention to detail

• Ability to manage multiple projects and deadlines

• Excellent written and verbal communication skills

Preferred Software Experience

Working knowledge of one or more of the following:

• AutoCAD and/or AutoCAD Electrical

• Bentley MicroStation

• ETAP, SKM PowerTools, or ASPEN OneLiner

• CYMCAP

• PLS‑CADD (or comparable transmission line analysis software)

• Microsoft Office (Word, Excel, Outlook)

Physical Requirements

• Ability to sit, stand, or walk for extended periods, as required by project and site activities

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Hargrove Culture

We work to create an environment founded on trust, personal integrity, and a “team mentality” so that each person understands the value of their contributions both on a project and company-wide level. We know that each person on our team contributes to the success of our company by pairing expertise and passion to meet and exceed the needs of the clients we serve across the globe.

Our safety culture protects and promotes the well-being of every person who works with us and every person touched by our work.

As a 100% Teammate owned company, we proudly offer a comprehensive benefits package including, paid holidays, personal paid time off, medical, dental, vision, life, and disability insurance, 401(k), and other benefits to eligible Teammates.

Equal Opportunity Employment Statement

Hargrove is an Equal Opportunity/Affirmative Action employer. We do not discriminate based upon race, color, national origin, religion, age, sex (including gender, sexual orientation, pregnancy, sexual identity, marital or family status), disability, military service or obligations, veteran status, or any other characteristic protected by law.

Hargrove is a drug-free workplace.

The selected candidate must be authorized to work in the United States.

Hargrove is passionate about serving our clients within our industry and the local economy, and we recognize that our impact goes beyond building great projects. Our extraordinary teammates serve the community with their time, talent, and generosity. The Hargrove team is a family whose volunteerism makes a huge impact on our communities, and The Hargrove Foundation is the vehicle for making a true difference in the lives of others.

We work to create an environment founded on trust, personal integrity, and a “team mentality” so that each person understands the value of their contributions both on a project and company-wide level. Hargrove has consistently been ranked one of the “Best Firms to Work For” by organizations such as ZweigWhite and Business Alabama.

We pair expertise and passion to meet and exceed the needs of the clients we serve across the globe. Our teammates strive to expand their knowledge and contribute to the success of the organization.

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