Senior Environmental Air Quality Modeler

WSP in the U.S.; San Antonio (TX); On-site; USD 90,000 - 130,000; Full time

Benefits offered by this job

Medical, Dental, Vision, Disability, &

Retirement Savings plans

Flexible workplace model

Job summary

WSP USA is seeking an experienced Environmental Air Quality Modeler to join our Environmental Team. This role focuses on complex air quality permitting, compliance, and modeling for industrial clients across the United States.

The ideal candidate will have strong technical expertise in air quality permitting and modeling, solid project management skills, and a commitment to delivering outstanding client service while shaping sustainable outcomes for communities and the environment.

Qualifications

• Bachelor's degree in Chemical Engineering, Environmental Engineering, Meteorology, Environmental Science, or closely related discipline.
• 5+ years of professional experience in air quality permitting, regulatory compliance, and environmental consulting.
• Experience with air dispersion modeling, NSR/PSD permits, nonattainment permitting, and Title V permitting.

Responsibilities

• Lead and support air quality permitting, compliance, and regulatory projects for industrial clients.
• Prepare and review NSR, PSD, and other air permit applications.
• Conduct air dispersion modeling analyses using tools such as AERMOD and other applicable modeling platforms.
• Perform emissions calculations, emissions inventories, and air regulatory analyses.
• Prepare semi-annual, annual, and other regulatory compliance reports.
• Interpret federal, state, and local air quality regulations and provide strategic guidance to clients.
• Coordinate with multidisciplinary project teams to deliver high-quality environmental solutions.
• Manage project scopes, schedules, budgets, and deliverables while ensuring technical excellence.
• Build and maintain strong client relationships through responsive communication and trusted technical support.
• Support business development initiatives, including proposal preparation, client engagement, and identification of new project opportunities.
• Mentor junior staff and contribute to growth of the Air Quality practice.

Skills

Air dispersion modeling

NSR permitting

PSD permitting

Nonattainment permitting

Emissions inventory

Title V permitting

Regulatory analytics

Microsoft Excel

Technical writing

Project management

Education

Bachelor's degree in Chemical Engineering

Tools

AERMOD

CALPUFF

Job description

WSP USA is seeking an experienced Environmental Air Quality Modeler to join our Environmental Team. This role focuses on complex air quality permitting, compliance, and modeling for industrial clients across the United States.

The ideal candidate will have strong technical expertise in air quality permitting and modeling, solid project management skills, and a commitment to delivering outstanding client service while shaping sustainable outcomes for communities and the environment.