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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's Mechanical Engineering group is seeking a dynamic, talented Mechanical Engineer for immediate employment to be based out of our Philadelphia, PA location.

Projects include transportation and aviation projects, including bus and transit facilities, airports, and related buildings.

• Design the mechanical and/or plumbing systems from concept through construction across multi-disciplinary teams, ensuring quality, compliance, and innovation.
• Collaborates with architects, engineers, vendors and clients to deliver projects on time and within budget.
• Performs HVAC and/or plumbing calculations.
• Prepares and deliver high-quality drawings (AutoCAD and Revit), construction documents, specifications and reports.
• Provides input to the development of engineering budget and schedule to meet requirements.
• Ensures compliance with applicable codes, standards and client requirements.
• Performs quality control review of design calculations and drawings.
• Participates in interdisciplinary review of project deliverables.
• Mentor junior engineers.
• Conducts site visits to document and evaluate mechanical and/or plumbing systems.

Minimum Requirements

• BA/BS +4 years of related experience or demonstrated equivalency of experience and/or education.
• Professional Engineer (PE) License or ability to obtain within one year.
• Experience with AutoCAD and Revit.
• Experience with Building HVAC and/or Plumbing design.

Preferred Qualifications

• 6+ years of related HVAC and/or Plumbing engineering experience.
• AutoCAD and Revit professional experience.
• Experience as a lead engineer on project design.

• Relocation assistance is available.
• Sponsorship for US Employment Authorization is not available now or in the future for this position.

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.