Senior Ambient Air Quality Professional Full Time

• Lead ambient air quality programs, including the design, deployment, operation, and interpretation of monitoring networks.
• Provide technical direction for ambient air monitoring plans, Quality Assurance Project Plans (QAPPs), and standard operating procedures.
• Manage and analyze ambient air quality data to support regulatory compliance, permitting, planning, and health or environmental risk assessments.
• Support analyses related to NAAQS, State Implementation Plans, attainment demonstrations, conformity, and other regulatory evaluations.
• Oversee or assist with air dispersion modeling and related assessments of ambient air impacts.
• Act as a technical advisor during regulatory reviews, agency coordination, and public engagement activities.

Client & Program Management

• Serve as a key technical contact for clients on ambient air quality issues.
• Lead or support project planning, scope definition, scheduling, and budget oversight.
• Convert complex technical results into clear, well-supported conclusions for clients, regulators, and public audiences.
• Assist with proposal preparation and technical scoping for air monitoring and ambient air quality projects.

Leadership & Mentorship

• Guide junior and mid-level staff, review their work, and ensure technical accuracy and regulatory defensibility.
• Help develop internal best practices, methodologies, and technical guidance.
• Work closely with multidisciplinary teams, including air permitting, EHS, environmental planning, and health sciences, to provide integrated solutions.

About the Team

• Join AECOM’s global environmental practice, supported by a strong internal technical network that encourages collaboration and knowledge sharing.
• Be part of a leading environmental business known for technical excellence, advanced science, and innovative project delivery.
• Contribute to sustainable solutions for complex environmental challenges across a wide range of industries and geographies.
• Grow professionally in an environment that supports individual development and continuous learning.

Minimum Qualifications

• Bachelor’s degree in environmental engineering, environmental science, atmospheric science, chemistry, or a related discipline.
• At least 8 years of relevant experience, or an equivalent combination of education and experience, in ambient air quality, air monitoring, or air quality assessment.
• Valid U.S. driver’s license.
• U.S. citizenship is required for this role.

Preferred Qualifications

• Master’s degree or Ph.D. in a relevant field.
• 15+ years of relevant experience, or equivalent education and experience, in ambient air quality, air monitoring, or air quality assessment.
• Professional certifications such as PE, Certified Air Quality Professional, or similar credentials are strongly preferred.
• Strong understanding of the Clean Air Act, NAAQS, monitoring regulations such as 40 CFR Parts 50, 53, and 58, and state air programs.
• Experience working with state or local air agencies, transportation agencies, or major infrastructure projects.
• Familiarity with emerging air quality issues and both regulatory and non-regulatory modeling methods.
• Experience supporting public meetings, stakeholder engagement, or expert testimony.
• Demonstrated background in developing and implementing ambient air monitoring programs and evaluating air quality data.
• Prior consulting experience managing multiple clients and projects is highly desirable.
• Excellent written and verbal communication skills, including technical report writing and presentations.