Senior Power Electrical Engineer - Medium & Low Voltage Distribution

Work with Us. Change the World. At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world’s most complex challenges and build legacies for future generations. There has never been a better time to be at AECOM. With accelerating infrastructure investment worldwide, our services are in great demand. We invite you to bring your bold ideas and big dreams and become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a positive and tangible impact around the world. We're one global team driven by our common purpose to deliver a better world. Join us. AECOM is seeking a Senior Power Electrical Engineer specializing in Medium and Low Voltage Distribution to join our team in Orange, California. This is an exciting opportunity for an experienced electrical engineering professional to take a leading role in the design and delivery of complex power distribution and facility electrical systems supporting a diverse portfolio of infrastructure, federal, industrial, commercial, and institutional projects. In this role, you will lead electrical power distribution design activities from initial planning and conceptual engineering through detailed design, construction, startup, and commissioning. You will serve as a technical leader and, where applicable, Engineer of Record, providing expertise in medium-voltage and low-voltage distribution systems, electrical equipment selection, power system studies, and facility electrical infrastructure. Your responsibilities will include developing electrical distribution architectures, single-line diagrams, equipment specifications, cable and feeder schedules, grounding systems, and protective device coordination studies. You will also perform and oversee critical power system analyses, including load flow, short circuit, arc flash, and protective relay coordination, ensuring that designs meet applicable industry standards, client requirements, and project objectives. The successful candidate will bring extensive experience designing both indoor and outdoor electrical distribution systems, including medium-voltage switchgear, low-voltage switchboards, transformers, substations, underground distribution, and facility power systems. Experience with electrical engineering software such as SKM Power Tools for Windows and ETAP will be particularly valuable. Beyond technical design, this position offers the opportunity to influence project delivery, mentor and guide engineering teams, develop client relationships, and contribute to business development initiatives. You will collaborate with multidisciplinary teams across AECOM's regional and national offices, helping deliver reliable, safe, and resilient electrical infrastructure for some of the most challenging projects in the industry. Key Responsibilities - Lead and perform electrical engineering design for medium-voltage and low-voltage power distribution systems serving infrastructure, industrial, commercial, institutional, and federal facilities. - Serve as Engineer of Record on assigned projects, taking responsibility for the technical quality, accuracy, and completeness of electrical engineering deliverables. - Develop electrical distribution system designs, including single-line diagrams, three-line diagrams, equipment layouts, panel schedules, feeder schedules, cable schedules, connection diagrams, and bills of materials. - Perform and oversee power system studies, including load flow, short circuit, protective device coordination, arc flash analysis, and equipment duty evaluations. - Design and specify medium-voltage switchgear, low-voltage switchboards, distribution panels, transformers, substations, protective relays, metering systems, and associated electrical equipment. - Perform cable sizing, ampacity calculations, voltage drop calculations, and feeder routing evaluations for electrical distribution systems. - Develop underground electrical distribution designs, including duct banks, conduit systems, manholes, equipment pads, and associated infrastructure. - Prepare grounding and bonding designs, grounding layouts, and lightning protection systems in accordance with applicable codes and standards. - Develop technical specifications, equipment procurement documents, construction drawings, design calculations, and engineering reports. - Evaluate existing electrical infrastructure through site investigations, field assessments, equipment condition reviews, and verification of existing installations. - Participate in client meetings, project site visits, field walks, and coordination meetings with owners, contractors, vendors, and other engineering disciplines. - Provide technical support during construction, including responding to RFIs, reviewing contractor submittals, evaluating proposed changes, and resolving field-related engineering issues. - Support equipment installation, system startup, testing, commissioning, and final acceptance activities. - Coordinate electrical engineering workload forecasts, design schedules, budgets, staffing requirements, and project deliverables with Project Engineers and Project Managers. - Perform technical reviews and quality assurance/quality control (QA/QC) of electrical engineering calculations, drawings, specifications, and other deliverables prepared by project team members. - Provide technical guidance and mentorship to electrical engineers, designers, and drafting personnel while helping establish consistent design standards and engineering practices. - Support business development activities, including proposal preparation, technical approaches, scope development, project estimates, and client presentations. - Build and maintain effective working relationships with clients, utility providers, regulatory agencies, and multidisciplinary project teams. Minimum Requirements: - Bachelor's degree plus 6 years of related experience or demonstrated equivalency of experience and/or education. - Due to the nature of our contracts US Citizenship is required for this role.Preferred Qualifications - Bachelor's degree in Electrical Engineering. - Professional Engineer (P.E.) license, preferably in California, or the ability to obtain California licensure through reciprocity. - 7+ years of experience in electrical power distribution and facility electrical systems engineering, with demonstrated expertise in medium-voltage and low-voltage distribution design. - Extensive experience designing and specifying medium-voltage switchgear, low-voltage switchboards, transformers, substations, protective relays, underground distribution systems, and associated electrical infrastructure. - Demonstrated experience performing power system studies, including load flow, short circuit, arc flash, and protective device coordination using software such as SKM Power Tools or ETAP. - Strong knowledge of applicable electrical codes and standards, including NEC, NFPA, IEEE, NESC, and UFC requirements, with experience preparing engineering calculations, technical specifications, construction drawings, and performing QA/QC reviews. - Experience leading multidisciplinary electrical engineering teams and supporting complex federal, Department of Defense (DoD), industrial, commercial, or institutional projects, including client coordination, construction administration, equipment procurement, and commissioning. At AECOM, we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously. To support this commitment, all newly hired employees are required to attend an in-person Day 1 onboarding at an AECOM office location as a condition of employment.   About AECOM  AECOM is proud to offer comprehensive benefits to meet the diverse needs of our employees. Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&D, disability benefits, paid time off, leaves of absences, voluntary benefits, perks, flexible work options, well-being resources, employee assistance program, business travel insurance, service recognition awards, retirement savings plan, and employee stock purchase plan.  AECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients’ complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2025. Learn more at aecom.com.  What makes AECOM a great place to work  You will be part of a global team that champions your growth and career ambitions. Work on groundbreaking projects - both in your local community and on a global scale - that are transforming our industry and shaping the future. With cutting-edge technology and a network of experts, you’ll have the resources to make a real impact. Our award-winning training and development programs are designed to expand your technical expertise and leadership skills, helping you build the career you’ve always envisioned. Here, you’ll find a welcoming workplace built on respect, collaboration and community—where you have the freedom to grow in a world of opportunity.  As an Equal Opportunity Employer, we believe in your potential and are here to help you achieve it. All your information will be kept confidential according to EEO guidelines.