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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.

Job Summary

We are seeking an experienced Lead – Classified HVAC to lead design and delivery of specialized HVAC systems for high-security and controlled environments, including semiconductor fabs, cleanrooms, and advanced manufacturing facilities.

• Provide technical leadership for HVAC design in classified and controlled environments, ensuring compliance with stringent security and contamination control standards.
• Develop system concepts for cleanrooms, ATMP facilities, and critical process areas, including airflow control, pressurization, and filtration strategies.
• Oversee preparation of detailed engineering drawings, specifications, and calculations using tools such as AutoCAD, Revit, and BIM.
• Collaborate with multidisciplinary teams (Mechanical, Electrical, Process Engineering, Architecture) to integrate HVAC solutions into overall facility design.
• Ensure adherence to ISO cleanroom classifications, ASHRAE standards, and client-specific protocols.
• Conduct design reviews, risk assessments, and validation of HVAC systems for classified environments.
• Support project planning, cost estimation, and technical evaluations for HVAC packages.
• Mentor engineering teams and ensure knowledge transfer of best practices in classified HVAC design

• Bachelor’s degree in Mechanical Engineering or related discipline.
• 15+ years of experience in HVAC design for controlled environments, including semiconductor or pharmaceutical facilities.
• Expertise in cleanroom HVAC design, contamination control, and classified facility requirements.
• Proficiency in AutoCAD, Revit, and BIM platforms.
• Strong understanding of ASHRAE, ISO, and international HVAC standards.
• Excellent leadership, communication, and stakeholder management skills.

• Master’s degree or certifications (LEED, PMP, ASHRAE) is a plus.
• Experience in semiconductor fabs, ATMP facilities, or defense-related classified projects preferred.
• Familiarity with energy-efficient and sustainable HVAC solutions desirable

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 2024. 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.