Air Quality Analyst

Overview

Kimley-Horn's Orange, CA office is seeking an Air Quality Professional with 5+ years of experience specializing in air quality permitting to join our environmental team. The successful candidates will assist in various projects, assisting industrial and municipal clients with their permitting, compliance, and planning needs.

Responsibilities

• Technical Support:

• Assist in conducting air quality impact assessments, analyses, and dispersion modeling.

• Perform regulatory and technical analyses in support of permitting project in California and throughout the USA.

• Familiar with modeling tools and software including CalEEMod, EMFAC, OFFROAD, CALINE4, AERMOD, CAL3QHCR, ISCST3, AERSCREEN, SCREEN3, and GIS.

• Report Preparation:

• Prepare technical reports, environmental impact assessments, and documentation.

• Conduct air quality impact analyses, health risk assessments, and greenhouse gas analyses.

• Assist with the preparation of permit applications and compliance documentation.

• Field Work:

• Participate in field studies and data collection activities related to air quality.

• Participate in compliance audits for environmental topics including air pollutants, toxics, hazardous materials, etc.

• Data Analysis:

• Perform emission calculations for various industrial processes.

• Understanding design documents and engineering drawings.

• Utilize Geographic Information Systems (GIS) and other relevant software for environmental analysis.

Qualifications

• Degree (Bachelors or Masters) in Environmental Science, engineering (environmental, chemical, mechanical, civil), atmospheric sciences, physics, chemistry, data science or related field

• 5+ years of experience in environmental consulting, with a focus on air quality permitting

• Certified Permitting Professional (CPP) a plus

• Experience with data centers and power production

• Strong understanding of environmental laws, regulations, and standards (e.g., Clean Air Act, CEQA).

• Strong writing/verbal skills

• Working knowledge of GIS/ArcView

• Excellent verbal, written and interpersonal skills

• Positive attitude and a strong work ethic

• Strong sense of urgency and self-initiative to meet client deadlines

• Detail-oriented team player with an ability to contribute to a positive work environment

• Ability to work independently and as a team

Salary Range : $90,000 - $125,000

Why Kimley-Horn?

At Kimley-Horn, we do things differently. People, clients, and employees are at the forefront of who we are. Clients know we prioritize achieving their goals and growing their success. Employees know our culture and approach to business are built on a desire to provide an environment for everyone to flourish. Our commitment to quality is only as good as the people behind it— that’s why we welcome and develop passionate, hardworking, and proactive employees. We take pride in how our employee retention, robust benefits package, and company values have led to Kimley-Horn’s placement on the Fortune “100 Best Companies to Work” list for 19 years!

Key Benefits at Kimley-Horn

• Exceptional Retirement Plan: 2-to1- company match on up to 4% of eligible compensation (salary + bonus) and additional profit-sharing contribution.

• Comprehensive Health Coverage: Low-cost medical, dental, and vision insurance options.

• Time Off: Personal leave, flexible scheduling, floating holidays, and half-day Fridays.

• Financial Wellness: Student loan matching in our 401(k), and performance-based bonuses.

• Professional Development: Tuition reimbursement and extensive internal training programs.

• Family-Friendly Benefits: New Parent Leave, family building benefits, and childcare resources.

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This posting is for a current vacancy. Applications are being accepted on an ongoing basis; however, this job posting may close at any time after a minimum of 3 days of being posted.

PleaseCLICK HERE (https://www.kimley-horn.com/careers/benefits/at-a-glance/) to learn more about the potential Benefits you may be eligible to receive with this role.

If you require an accommodation, pleaseCLICK HERE. (https://www.kimley-horn.com/careers/accommodation-request/)

Applicants must be legally authorized to work for Kimley-Horn in the U.S. without employer sponsorship. We do not typically sponsor H1-B or any other work visa petitions.

Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities

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Posted Date (11/3/2026 11:02 AM)

ID 2026-27531

Education Bachelor's Degree

Discipline/Focus Planning, Environmental