Senior Engineer, High Voltage Development

AES US•Louisville, CO

8d•Hybrid

About The Position

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. Our spirit of innovation continues to earn industry recognition. AES is the only seven-time winner of the Edison Electric Institute’s Edison Awards in the twenty-first century, a distinction honoring global leadership in advancing the electric power industry. If you're ready to be part of a company that's not just adapting to change, but driving it, AES is the place for you. We're not just building a more sustainable future , we're powering it. Apply now and energize your career with a true leader in global energy.

Requirements

Bachelor’s degree in Electrical Engineering or a related field and 6 years of experience in high voltage design or a related field.
5 years' experience in high Voltage (35–500 kV) Substation design experience for Renewable plants (Solar/Wind/BESS), conceptual through commissioning, using AutoCAD, Bluebeam
5 years' experience in high Voltage Generation tie line and medium voltage collector system design experience, conceptual through commissioning
4 years' experience in utilities to obtain technical requirements, negotiate LGIAs, and coordinate drawing reviews to ensure designs meet utility/ISO specifications
4 years' experience in analyzing EPC bids for cost competitiveness, value engineering opportunities, compliance with industry standards and Owner standards
3 years' experience in high Voltage Greenfield, Brownfield, and Merger & Acquisition technical due diligence & portfolio risk assessment
4 years' experience in managing Engineer of Record to develop 10%, 30%, and up to 60% High Voltage design package by providing oversight and ensuring compliance with industry standards such as IEEE, NESC, NFPA, and ISO and Utility-specific requirements
4 years' experience in developing, designing and de-risking deliverables and support High Voltage Estimators with Class 4 and Class 5 estimates, including General Arrangements, Single-Line Diagrams, Bill of Materials
4 years' experience in developing High Voltage circuit breaker and transformer specifications for key Owner Furnished equipment, plus review all design drawings and equipment selection, in person supervise pre-tanking and factory acceptance testing
5 years' experience in AutoCAD, Bluebeam, ETAP, OpenDSS, Google Earth, and Microsoft Suite.

Nice To Haves

Demonstrated experience across DC coupled, AC coupled solar plus BESS, wind, and multiphase project designs, and in maintaining relationships with specialist HV consultants and contractors.

Responsibilities

Lead conceptual, preconstruction, and construction phase engineering for Solar, Wind, and BESS high voltage (35–500 kV) substations and generation tie lines.
Develop conceptual designs and scope of work documents for permitting, estimating, and regional renewable projects in alignment with AES and utility standards.
Manage external engineering consultants through development of 30% design packages for substations and transmission facilities.
Perform in-house high voltage design work and support cost estimating, including BOM reviews and substation expansion assessments.
Conduct technical due diligence to derisk project pipelines and Merger & Acquisition portfolios, serving as project engineer for all high-voltage functions.
Review EPC substation bid packages for compliance with interconnection agreements, NERC standards, AES standards, and industry best practices.
Provide design reviews and identify technically incorrect or inconsistent documentation, highlighting critical risks early in project development.
Coordinate with interconnection providers (CAISO, HECO, Xcel, Tri State, PacifiCorp, etc.) to ensure compliant collector substations, gen tie designs, and switchyard requirements.
Collaborate cross functionally with real estate, permitting, commercial, legal, estimating, PV/Wind/BESS engineering, preconstruction, and construction teams.