Project Mechanical Engineer

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Job Description

AECOM is seeking an initiative-taking Professional Engineer with a Mechanical Engineering background to be based in the Denver, Colorado office to support mining projects in the planning and execution phases of projects and to help augment a team of Mechanical Professionals. The Project Mechanical Engineer will be working as an integral part of the team.

Job Summary/ Responsibilities:

• Lead mechanical design and analysis for mining and heavy industrial projects, including piping systems, pumps, tanks, and process equipment.
• Develop and review engineering calculations, including equipment sizing, pipe stress analysis, and system design in accordance with applicable codes and standards.
• Support early-stage project development through conceptual design, including PFDs, P&IDs, equipment selection, and facility layouts.
• Prepare and review technical deliverables such as reports, specifications, and design packages to ensure quality and accuracy.
• Coordinate with multidisciplinary teams to integrate mechanical systems into overall project design.
• Perform quality control reviews of calculations, drawings, and technical documents.
• Support procurement activities, including vendor engagement, bid evaluations, and review of shop drawings.
• Contribute to project planning by supporting cost estimates, schedules, and technical work planning.
• Provide technical guidance and mentorship to junior engineers and support staff.
• Support construction activities through design clarifications, RFI responses, and field coordination as needed.

Minimum Requirements

• BA/BS + 6 years of relevant experience and or demonstrated equivalency of education and/or experience
• Professional Engineer (PE) Certification or ability to obtain within 6 months of start date
• Valid U.S. Driver’s License

Preferred Qualifications

• 8+ years or more of relevant industry experience
• PE in Colorado, New Mexico, Utah, Arizona, or the ability to acquire a PE in any of these States within 6 months.
• On-site field experience in commissioning and start-ups for pump stations.
• Demonstrated progressive experience in mechanical pipe stress modeling using industry standard software programs in conformance with codes and standards as well as project requirements.
• Demonstrated progressive experience in mechanical engineering systems for pump and piping design, modeling, and construction documentation.
• Demonstrated progressive project experience including task leadership on design-bid-build projects.
• Demonstrated progressive experience in collaborating with CAD designers to produce construction-level drawings.
• Demonstrated progressive experience as a technical resource to serve as technical reviewer and advisor for mechanical pumping and piping systems with strong written and oral communication and people management skills.

• No sponsorship will be offered for this role now or in the future
• No relocation will be offered for this role.

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.