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TITLE: Senior Engineer, High Voltage Development

EMPLOYER: AES Clean Energy Services LLC

LOCATION: 282 Century Pl, Ste 2000, Louisville, CO 80027 (Hybrid role; part time telecommuting authorized; 25% travel to site visits and factory inspections)

DUTIES: 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. 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.

REQUIREMENTS: Job requires a Bachelor's degree in Electrical Engineering or a related field and 6 years of experience in high voltage design or a related field. This position also requires experience in the below:

• 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.

SALARY: The expected salary for this position, at commencement of employment, is between $156,354 to $159,500/year; however, base pay offered may vary depending on multiple individualized factors, including market location, job-related knowledge, skills, and experience. The total compensation package for this position also includes annual bonus. The benefits offered for this position are: medical, dental, and vision coverage, life insurance, 401(k) eligibility, and paid time off (including vacation, sick leave time, and parental leave). Details of participation in these benefit plans will be provided if a candidate receives an offer of employment. 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.)

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.