Sr. High Voltage Project Engineer

AES Corporation; Phoenix (AZ); On-site; USD 113,000 - 142,000; Full time

Benefits offered by this job

Medical coverage

Dental coverage

Vision coverage

Life insurance

401(k) eligibility

Paid time off

Job summary

AES Corporation seeks an experienced electrical engineer to oversee high‑voltage substation design and transmission line projects across the United States, with emphasis on the Western portfolio. The role involves coordinating EPCs, utilities, and internal teams to ensure interconnection and reliability standards are met.

Senior candidates should have 7+ years in HV design (substation or transmission), strong grid‑integration knowledge, and PE licensure; non‑senior candidates with 4+ years are

Qualifications

• B.S. Electrical Engineering required; PE licensure preferred.
• Senior role requires 7+ years in technical design (substation or transmission).
• Non-senior requires 4+ years in HV design or related fields.
• Strong communication skills and ability to lead technical discussions with EPCs and utilities.

Responsibilities

• Oversee EPC contractor engineering design and construction for HV substations and transmission lines (35kV–500kV).
• Coordinate with interconnection providers and internal stakeholders to meet interconnection and reliability standards.
• Review power system studies and ensure designs meet project documentation and grid requirements.
• Provide technical oversight during substation commissioning and testing; support project teams across multiple states.

Skills

Project management

Communication skills

Leadership

Grid integration knowledge

Education

PE Licensure

B.S. Electrical Engineering

Tools

ETAP

PSLF

PSS/E

PLS-CADD

Job description

About AES Corporation

Are you ready to be part of a company that’s not just talking about the future, but actively shaping it? Join The AES Corporation, the largest US‑based global power company with a team of 8,300 employees across 12 countries.

AES has been ranked #1 by BloombergNEF in renewable energy sales to corporations in the US and Americas for five consecutive years, providing electricity for millions of people worldwide.

We are proud to foster a strong workplace culture, earning prominent positions in Great Place to Work rankings across the markets where we operate. AES was also named one of the World’s Most Ethical Companies for the 13th consecutive year in 2026, highlighting our dedication to integrity, transparency, and responsible business practices.

Engineering Department Overview

As part of the Engineering Department, the High Voltage Engineering team delivers preconstruction engineering and construction/commissioning engineering for High Voltage facilities associated with renewable energy power plants.

We are currently looking for a substation or transmission engineer to oversee the execution of high voltage projects located across the country but heavily in the Western United States portfolio (Texas, California, Arizona, Utah, Nevada, and Hawaii). The engineer for this position should enjoy the versatility of technical tasks with a strong focus on understanding grid integration requirements for renewables and data centers. The role is that of an owner’s engineer to oversee high voltage designs from EPC firms contracted to design and build the high voltage facilities for our projects to ensure it meets interconnection and commercial requirements, and to provide technical oversight during the construction. Strong experience in detailed substation design and/or transmission line design preferred.

A ideal candidate would be one who can coordinate deliverables through internal and external parties, has a wide breadth of technical skills (e.g. P&C design, physical substation design, modelling, interconnection, t‑line design), passionate about continual learning and working as part of a team.

This position is open to non‑senior candidates who are passionate about learning, demonstrate extreme ownership and have a demonstrated history of growing in rapid environments. Listed below are the differences between seniors and non‑senior positions.

We are open to considering U.S. remote‑based candidates, preferably located in the Pacific (PST) or Mountain (MST) time zones.

Principal Duties and Responsibilities

• Responsible for oversight of EPC contractor engineering design and construction activities for Solar, Wind, and BESS collector high voltage substations and transmission lines (35kV to 500kV).


• Establish and maintain relationships with high voltage contractors.


• Review Substation EPC designs for compliance with interconnection agreement requirements, applicable reliability standards, standard industry practices, etc.


• Provide design review and advice on any issues that appear technically incorrect or inconsistent with project documentation.


• Coordinate the review power system studies such as load flows, short circuits, harmonics, TOV, insulation coordination, etc.


• Direct coordination with Interconnection Providers(utilities) to design collector substations to include Transmission Provider requirements and internal stakeholders while including AES specifications.


• Coordinate Generation Tie line or Transmission line design with EPC and internal stakeholders to ensure it remains within the project requirements.


• Support role during substation commissioning by reviewing apparatus testing and coordinating testing with utility and ISO.


• Growth opportunity for a leadership role within the engineering team.


• Work with a project team including real estate, permitting, interconnection, attorneys, finance, and construction in the field.


• Travel and fieldwork 25%. Projects are located across the country but this position will support wind (anywhere) and PV/BESS (west coast).

Minimum Qualifications

• B.S. Electrical Engineering or other engineering disciplines.

Senior Engineer

• 7+ years of a combination of technical design experience. This can include substation design experience (either Physical, P&C), Transmission line design, power flow/studies.


• Proficient in readings control schematics for HV breakers, Main Power Transformers, etc.


• Mature understanding of grid integration requirements for renewables.


• More advanced knowledge of power system modeling such as load flow, insulation coordination, grounding, arc‑flash, TOV, harmonics, etc.

Non-senior

• 4+ years of a combination of technical design experience. This can include substation design experience (either Physical, P&C), Transmission line design, power flow/studies.


• Advanced in readings control schematics for HV breakers, Main Power Transformers, etc.


• Basic understanding of grid integration requirements for renewables.


• Basic Knowledge of power system modeling such as load flow, insulation coordination, grounding, arc‑flash, TOV, harmonics, etc.


• 2+ years of project engineering experience in an HV related role.


• Strong communication skills and ability to lead technical discussions among HV EPCs, Power Utilities, and internal stakeholders.


• Strong organizational skills and ability to prioritize projects and tasks.

Desired Skills and Experience

• Project Management experience handling HV EPCs.


• PE Licensure in any of these states: Arizona, California, Hawaii, Nevada, or Utah.


• Technical lead experience coordinating engineering packages such as IFPs and IFCs.


• Experience with ETAP, PSLF, PSS/E or PLS-CADD


• Experience in relay system testing.


• Experience in SCADA controls and architecture.


• B.S. Electrical Engineering or higher with emphasis on Power Systems.

AES is an Equal Opportunity Employer who is committed to building strength and delivering long‑term sustainability through diversity and inclusion. Respecting all backgrounds, differences and perspectives enables us to improve the lives of our people, customers, suppliers, contractors, and the communities in which we live and work. All qualified applicants will receive consideration for employment without regard to sex, sexual orientation, gender, gender identity and/or expression, race, national origin, ethnicity, age, religion, marital status, physical or mental disability, pregnancy, childbirth or related medical condition, military or veteran status, or any other characteristic protected under applicable law. E-Verify Notice: AES will provide the Social Security Administration (SSA) and if necessary, the Department of Homeland Security (DHS) with information from each new employee’s I‑9 to confirm work authorization.

The expected salary for this position, at commencement of employment, is between $113,000 and $141,525/year; however, base pay offered may vary depending on multiple individualized factors, including market location, job‑related knowledge, skills, and experience.

Benefits

• Medical coverage


• Dental coverage


• Vision coverage


• Life insurance


• 401(k) eligibility


• Paid time off (including vacation, sick leave time, and parental leave)

If hired, employee will be in an \"at‑will position\" and the Company reserves the right to modify base salary (as well as any other discretionary payment or compensation program) at any time, including for reasons related to individual performance, Company or individual department/team performance, and market factors.