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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's Air Quality team is seeking an experienced Senior Ambient Air Quality Professional to join our environmental consulting practice in a senior level technical role. The successful candidate will bring deep expertise in ambient air monitoring, air quality assessments, and air quality modeling, and will serve as a technical leader supporting complex projects for public- and private-sector clients.

This hybrid position can be based in our Houston or Austin, TX offices.

This position is well-suited for a professional with strong regulatory knowledge, proven consulting experience, and the ability to lead technical work, advise clients, and mentor staff across a diverse portfolio of ambient air quality projects.

Key Responsibilities:

Technical Leadership & Project Delivery:

• Lead and manage ambient air quality programs, including monitoring network design, implementation, operation, and data interpretation.
• Provide technical oversight for ambient air monitoring plans, quality assurance project plans (QAPPs), and standard operating procedures.
• Manage and interpret ambient air quality datasets in support of regulatory compliance, permitting, planning, and health or environmental risk evaluations.
• Support NAAQS-related analyses, State Implementation Plan support, attainment demonstrations, conformity, and regulatory assessments.
• Oversee or support air dispersion modeling and analyses as they relate to ambient air impacts.
• Serve as a technical resource during regulatory reviews, public engagement processes, and agency interactions.

Client & Program Management:

• Serve as a primary technical point of contact for clients on ambient air quality matters.
• Lead or support project planning, scope development, scheduling, and budget management.
• Translate complex technical findings into clear, defensible conclusions for client, regulator, and public-facing audiences.
• Support proposal development and technical scoping for ambient air quality and air monitoring projects.

Leadership & Mentorship:

• Mentor and review work products of junior and mid-level staff, ensuring technical quality and regulatory defensibility.
• Contribute to development of best practices, methodologies, and internal technical guidance.
• Collaborate with multidisciplinary teams (air permitting, EHS, environmental planning, health sciences) to deliver integrated solutions.

About AECOM's Environment Business Line
Join AECOM to be part of an expert global team who is connected through a well-developed, worldwide, internal technical practice network through which you can learn from and brainstorm with the best in the world. AECOM is an industry-leading, world class environmental firm, and we want you to succeed within it.  We respect and encourage your own pathway to excellence via our Freedom to Grow initiative.
AECOM is known for our award-winning technical excellence, leading-edge science and innovative project delivery. We provide sustainable solutions for some of the world's most challenging issues. Our global clients and their projects span a variety of market sectors and geographies and require innovative technical solutions to solve wide-ranging environmental problems.

Minimum Qualifications:

• Bachelor's degree in environmental engineering, environmental science, atmospheric science, chemistry, or a related field.
• 8 years of relevant experience or demonstrated equivalency of experience and/or education in ambient air quality, air monitoring, or air quality assessment.
• Valid U.S. Driver's license is required for this role.
• Due to the nature of the work, US Citizenship is required.

Preferred Qualifications:

• Ph.D. or master's degree in a relevant discipline.
• 15+ years of relevant experience or demonstrated equivalency of experience and/or education in ambient air quality, air monitoring, or air quality assessment.
• Professional certifications (e.g., PE, Certified Air Quality Professional, or equivalent) are highly desired.
• Strong knowledge of the Clean Air Act, NAAQS, monitoring regulations (e.g., 40 CFR Parts 50, 53, 58), and state air quality programs.
• Experience supporting state or local air agencies, transportation agencies, or large infrastructure programs.
• Familiarity with emerging air quality issues, regulatory and non-regulatory modeling techniques.
• Experience with public meetings, stakeholder engagement, or expert testimony support.
• Demonstrated experience developing and implementing ambient air monitoring programs and evaluating air quality data.
• Previous experience working in a consulting environment while supporting multiple clients and projects is highly desired. 
• Excellent written and verbal communication skills, including preparation of technical reports and presentations.

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.