Electrical Engineer Internship Jobs in Colorado (NOW HIRING)

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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's Water Business Line is seeking an Electrical Engineer to contribute to multidisciplinary teams that plan, design, and deliver water and wastewater treatment facilities, pump stations, and conveyance systems in the Denver, Colorado office.

The ideal candidate will support power, controls, and instrumentation design from concept through construction, helping communities ensure clean, reliable, and resilient water infrastructure.

This position is expected to begin as soon as possible. 

The responsibilities of this position include, but are not limited to:

• Develop electrical design documents for water/wastewater facilities, including single-line diagrams, load calculations, equipment layouts, panel schedules, cable/conduit routing, and grounding/lightning protection plans.
• Assist with motor control systems (MCCs, VFDs, soft starters), standby power systems (generators, ATS, UPS), and low-voltage power distribution.
• Perform short-circuit, protective device coordination, and arc-flash studies under supervision using industry-standard software.
• Draft and edit technical specifications, basis-of-design reports, calculations, and engineer's estimates of probable construction costs.
• Coordinate with civil, mechanical, structural, process, and construction management teams to resolve design interfaces and deliver integrated packages.
• Participate in quality reviews, submittal/RFI responses, shop drawing reviews, and field activities such as site assessments, factory acceptance tests, and commissioning support.
• Contribute to digital design workflows in CAD/BIM environments and help maintain model and drawing standards.
• Maintain strong project documentation, schedule awareness, and effective communication with internal stakeholders.
• Work with local and national Electrical and Instrumentation & Controls experts.

Minimum Requirements

• Bachelor's degree in Electrical Engineering, Chemical Engineering or a related field + None or demonstrated equivalency of experience and/or education.
• Due to the nature of work, US Citizenship is required.
• Valid U.S. Driver's License required to visit project sites, clients, and other AECOM offices.  

Preferred Qualifications

• Previous experience preferred but not required.
• Familiarity with the NEC (NFPA 70); awareness of IEEE and NFPA 70E practices.
• Engineer-in-Training (EIT) certification or the ability to obtain within 12 months.
• Internship/co-op experience in water/wastewater, industrial power, or infrastructure design.
• Experience with AutoCAD, Plant 3D and/or Revit.
• Exposure to Bluebeam or other PDF software for markups.
• Exposure to power system analysis tools (e.g., SKM, ETAP, EasyPower) for short-circuit, coordination, and arc-flash studies.
• Familiarity with PLCs/HMIs, SCADA concepts, and common industrial communication protocols.
• Understanding of AWWA and ISA standards relevant to water infrastructure and instrumentation.
• Strong verbal and written communication skills
• Ability to support the preparation of instrumentation and controls deliverables: I/O lists, instrument datasheets, panel layouts, control narratives, and P&IDs in collaboration with senior controls engineers. 
• Support SCADA architecture definition and integration with PLC/HMI systems in collaboration with senior controls engineers.

• Relocation assistance is not available for this position.
• This position requires a hybrid work schedule which includes in office work in Denver, Colorado. The selected candidate must be available to work in Denver, Colorado on a scheduled basis.
• Some travel may be required to support regional projects and client meetings.

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.