Senior Environmental Air Quality Modeler

WSP USA; Orlando (FL); On-site; USD 95,000 - 135,000; Full time

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 projects for industrial clients across the United States.

The ideal candidate brings strong expertise in air quality permitting, modeling with AERMOD/CALPUFF, and a commitment to delivering high-quality environmental solutions while mentoring junior staff and supporting business development.

Qualifications

• Bachelor's degree in Chemical Engineering, Environmental Engineering, Meteorology, Environmental Science, or a closely related discipline.
• 5+ years of professional experience in air quality permitting, regulatory compliance, and environmental consulting.
• Experience with air dispersion modeling, NSR, PSD, Nonattainment permitting, and Title V.
• Strong regulatory knowledge and ability to interpret regulations.
• Proficient in MS Office (Excel/Word).
• Ability to manage multiple projects and client relationships.
• Ability to work independently and in a team.

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 the continued growth and development of the Air Quality practice.

Skills

Air quality permitting

Regulatory compliance

Project management

Technical writing

Client communication

Team collaboration

Education

Bachelor's degree in Chemical Engineering, Environmental Engineering, Meteorology, Environmental Science, or closely related discipline

Tools

AERMOD

CALPUFF

Excel

Word

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 projects for industrial clients across the United States.

The ideal candidate brings strong expertise in air quality permitting, modeling with AERMOD/CALPUFF, and a commitment to delivering high-quality environmental solutions while mentoring junior staff and supporting business development.