Senior Air Quality Engineer: Permitting & Modeling Leader

APTIM; Washington; Hybrid; USD 135,000 - 166,000; Full time

Benefits offered by this job

Medical, vision, and dental insurance

Life insurance

Disability insurance

Paid holidays and leave

401(k) retirement plan

Job summary

APTIM seeks a Senior Air Quality Engineer to provide technical leadership in air permitting, dispersion modeling, regulatory strategy, and compliance. This client-facing role supports data centers, power generation, manufacturing, and infrastructure, helping grow APTIM’s Air Quality Services practice.

The candidate will lead major source permitting, develop regulatory strategies, perform dispersion modeling, and oversee compliance activities across complex projects while building strong client

Qualifications

• Bachelor’s degree in engineering, environmental science, atmospheric science, or related field.
• 10+ years of relevant air quality consulting, permitting, modeling, or compliance experience.
• Experience with major source permitting and regulatory strategy.
• Experience with dispersion modeling (preferably AERMOD) and air regulations at federal, state, and local levels.
• Strong technical writing, communication, and project management skills.

Responsibilities

• Lead major source, PSD/NSR, Title V, synthetic minor and minor source permitting for facilities and modifications.
• Develop regulatory strategies, emissions calculations, POT analyses, and permit applications.
• Evaluate applicability of Clean Air Act, NESHAP/MACT, NSPS, and state/local regulations.
• Perform or oversee air dispersion modeling using AERMOD and related tools.
• Support compliance through audits, emissions inventories, monitoring, recording, and reporting.
• Lead air quality support for data centers and power infrastructure projects.
• Coordinate permitting with design, construction, commissioning, and operations.
• Serve as primary client and regulator contact; manage scopes, budgets, schedules, teams, and quality.
• Build client relationships and identify opportunities to expand services.

Skills

Air quality consulting

Permitting

Dispersion modeling

Regulatory strategy

Technical writing

Project management

Client relationships

Education

Bachelor’s degree in engineering or environmental science

Tools

AERMOD

Job description

APTIM seeks a Senior Air Quality Engineer to provide technical leadership in air permitting, dispersion modeling, regulatory strategy, and compliance. This client-facing role supports data centers, power generation, manufacturing, and infrastructure, helping grow APTIM’s Air Quality Services practice.

The candidate will lead major source permitting, develop regulatory strategies, perform dispersion modeling, and oversee compliance activities across complex projects while building strong client