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Freelance Air Quality Engineer Jobs (NOW HIRING)

Air Quality Engineer

Peoria, IL · On-site

$100K - $150K/yr

  • Medical

  • Retirement

A Day in the Life of an Air Quality Engineer at Hanson Here's a snapshot of what you would do in this role: * Lead and manage air quality permitting projects to ensure successful project execution ...

Air Quality Engineer

Mchenry, IL · On-site

$100K - $150K/yr

  • Medical

  • Retirement

A Day in the Life of an Air Quality Engineer at Hanson Here's a snapshot of what you would do in this role: * Lead and manage air quality permitting projects to ensure successful project execution ...

Air Quality Engineer

Saint Louis, MO · On-site

$100K - $150K/yr

  • Medical

  • Retirement

A Day in the Life of an Air Quality Engineer at Hanson Here's a snapshot of what you would do in this role: * Lead and manage air quality permitting projects to ensure successful project execution ...

Air Quality Engineer

Kansas City, MO · On-site

$100K - $150K/yr

  • Medical

  • Retirement

A Day in the Life of an Air Quality Engineer at Hanson Here's a snapshot of what you would do in this role: * Lead and manage air quality permitting projects to ensure successful project execution ...

Air Quality Engineer

Bonifay, FL · On-site

$100K - $150K/yr

  • Medical

  • Retirement

A Day in the Life of an Air Quality Engineer at Hanson Here's a snapshot of what you would do in this role: * Lead and manage air quality permitting projects to ensure successful project execution ...

Air Quality Engineer

Richmond, VA · On-site

$97K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Geosyntec has an exciting opportunity for an Early-Career Air Quality Engineer in our growing national air practice and a member of the Gulf Coast and Energy Branch sitting in our Richmond, VA office ...

Air Quality Engineer

Richmond, VA

$97K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Geosyntec has an exciting opportunity for an Early-Career Air Quality Engineer in our growing national air practice and a member of the Gulf Coast and Energy Branch sitting in our Richmond, VA office ...

Air Quality Engineer

Marion, IL

$100K - $150K/yr

  • Medical

  • Retirement

A Day in the Life of an Air Quality Engineer at Hanson Here's a snapshot of what you would do in this role: * Lead and manage air quality permitting projects to ensure successful project execution ...

Air Quality Engineer

Houston, TX

$100K - $150K/yr

  • Medical

  • Retirement

A Day in the Life of an Air Quality Engineer at Hanson Here's a snapshot of what you would do in this role: * Lead and manage air quality permitting projects to ensure successful project execution ...

Air Quality Engineer

Lisle, IL

$100K - $150K/yr

  • Medical

  • Retirement

A Day in the Life of an Air Quality Engineer at Hanson Here's a snapshot of what you would do in this role: * Lead and manage air quality permitting projects to ensure successful project execution ...

Air Quality Engineer

Harlingen, TX · On-site

$100K - $150K/yr

  • Medical

  • Retirement

A Day in the Life of an Air Quality Engineer at Hanson Here's a snapshot of what you would do in this role: * Lead and manage air quality permitting projects to ensure successful project execution ...

Air Quality Engineer

Austin, TX · On-site

$100K - $150K/yr

  • Medical

  • Retirement

A Day in the Life of an Air Quality Engineer at Hanson Here's a snapshot of what you would do in this role: * Lead and manage air quality permitting projects to ensure successful project execution ...

Air Quality Engineer

Tallahassee, FL · On-site

$100K - $150K/yr

  • Medical

  • Retirement

A Day in the Life of an Air Quality Engineer at Hanson Here's a snapshot of what you would do in this role: * Lead and manage air quality permitting projects to ensure successful project execution ...

Air Quality Engineer

Chelmsford, MA

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Join us. AECOM is seeking an experienced Air Quality Engineer for immediate employment at our Chelmsford, MA office. This position is within our air permitting and compliance group. The ...

Air Quality Engineer

Chelmsford, MA · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Join us. AECOM is seeking an experienced Air Quality Engineer for immediate employment at our Chelmsford, MA office. This position is within our air permitting and compliance group. The ...

Air Quality Engineer

Houston, TX · On-site

$65K - $79K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

POSITION SUMMARY TRC is seeking a motivated mid-level Air Quality Engineer, Scientist or Meteorologist with 3-6 years of experience related to air emission compliance and permitting. This ...

Air Quality Engineer

Denver, CO · On-site

$114K - $141K/yr

  • Medical

  • Retirement

As an Air Permitting and Compliance Engineer you will play a vital role in ensuring regulatory ... This junior - mid level position is focused on air quality compliance to support upstream oil and ...

Showing results 21-40

Freelance Air Quality Engineer information

See salary details

$45K

$84K

$119K

How much do freelance air quality engineer jobs pay per year?

As of Aug 17, 2026, the average yearly pay for freelance air quality engineer in the United States is $84,039.00, according to ZipRecruiter salary data. Most workers in this role earn between $72,000.00 and $93,000.00 per year, depending on experience, location, and employer.

How do freelance air quality engineers typically collaborate with clients and multidisciplinary teams on projects?

As a Freelance Air Quality Engineer, collaboration often involves working remotely with clients, environmental consultants, and regulatory agencies. You may participate in virtual meetings, share project updates, and coordinate deliverables through collaborative platforms. Effective communication is essential, as you’ll need to integrate your findings into broader environmental assessments and ensure compliance with local regulations. Building strong professional relationships and being responsive to client needs are key to success in this flexible work environment.

What are the key skills and qualifications needed to thrive as a freelance air quality engineer?

To thrive as a Freelance Air Quality Engineer, you need a solid background in environmental engineering, air quality regulations, and atmospheric science, often supported by a relevant degree and professional certification such as EIT or PE. Familiarity with air dispersion modeling software (e.g., AERMOD), emissions monitoring equipment, and data analysis tools is typically required. Strong communication, project management, and client relationship skills set successful freelancers apart. These competencies are crucial for delivering accurate assessments, effective solutions, and maintaining client trust in a competitive, project-based field.

What is the difference between Freelance Air Quality Engineer vs Environmental Consultant?

AspectFreelance Air Quality EngineerEnvironmental Consultant
CredentialsEngineering degree, certifications like AEE or AQBEnvironmental science or engineering degree, certifications vary
Work EnvironmentIndependent projects, client sites, laboratoriesConsulting firms, project sites, regulatory agencies
Industry UsageAir quality assessments, emissions testing, complianceBroader environmental issues, including air, water, soil

Freelance Air Quality Engineers focus specifically on air quality testing, emissions, and compliance, often working independently with clients. Environmental Consultants have a broader scope, addressing multiple environmental factors and working within consulting firms. Both roles require relevant credentials, but their work environments and project types differ significantly.

What is a freelance air quality engineer?

A Freelance Air Quality Engineer is an independent professional who specializes in assessing, monitoring, and improving air quality for various clients, such as businesses, government agencies, or construction projects. They conduct air sampling, analyze data, and recommend strategies to reduce pollution and comply with environmental regulations. By working on a freelance basis, they offer flexibility and expertise to multiple clients, often managing their own schedules and projects. This role requires strong technical knowledge, analytical skills, and familiarity with environmental laws. Freelance Air Quality Engineers play a crucial role in protecting public health and the environment.
More about Freelance Air Quality Engineer jobs

What cities are hiring for Freelance Air Quality Engineer jobs?

Cities with the most Freelance Air Quality Engineer job openings:

What are the most commonly searched types of Air Quality Engineer jobs?

The most popular types of Air Quality Engineer jobs are:

What states have the most Freelance Air Quality Engineer jobs?

States with the most job openings for Freelance Air Quality Engineer jobs include:

What job categories do people searching Freelance Air Quality Engineer jobs look for?

The top searched job categories for Freelance Air Quality Engineer jobs are:

Infographic showing various Freelance Air Quality Engineer job openings in the United States as of August 2026, with employment types broken down into 1% As Needed, 80% Full Time, 14% Part Time, 4% Contract, and 1% Nights. Highlights an 94% Physical, 2% Hybrid, and 4% Remote job distribution, with an average salary of $84,039 per year, or $40.4 per hour.

Air Quality Engineer

Hansoninc

Peoria, IL • On-site

$100K - $150K/yr

Full-time

Medical, Retirement

Re-posted 3 days ago


Job description

Hanson Values

Integrity | Commitment | Quality | Relationships | Innovation

If you're looking for a firm that encourages innovative thinking and challenges you every day, with an opportunity to learn and advance, a career at Hanson is right for you. The belief in sustainability within our company's practices creates a focus on client success and partnerships that are important to our communities and our environment.

A Day in the Life of an Air Quality Engineer at Hanson

Here's a snapshot of what you would do in this role:

  • Lead and manage air quality permitting projects to ensure successful project execution while collaborating with multidisciplinary teams.
  • Conduct comprehensive air quality assessments and emission inventories to determine project compliance with local, state, and federal regulations.
  • Prepare and review air permit applications, ensuring accuracy, completeness, and adherence to regulatory requirements.
  • Interface with regulatory agencies, advocating for clients' interests during permit negotiations and approvals.
  • Provide technical guidance to clients on air quality compliance strategies, emission control technologies, and best practices. Perform air dispersion modeling and risk assessments to evaluate potential impacts of emissions on air quality and public health.
  • Stay current with evolving air quality regulations, industry trends, technological advancements, and convert this knowledge into actionable insights for clients.
  • Mentor and train junior staff fostering their professional development and enhancing team capabilities.
  • Participate in business development activities, including proposal writing and client presentations.
  • Collaborate with cross-functional teams to integrate air quality considerations into broader environmental initiatives.
  • Other duties as assigned.

What We're Looking For

We feel the following qualifications would set you up for success in this role:

Skills:

  • Deep knowledge of federal and state air quality regulations (e.g., Clean Air Act) and air permitting processes.
  • Proven experience in air dispersion modeling software such as AERMOD, CALPUFF, and EPA tools like MOVES.
  • Strong background in technical writing, with the ability to produce accurate, well-organized, and regulatory-compliant documents.
  • Demonstrated understanding of project budgeting, financial tracking, and revenue recognition.
  • Ability to scope and price professional services and contribute to project proposals.
  • Effective at leading and participating in project meetings and communicating complex regulatory topics to diverse stakeholders.
  • Proven ability to develop client relationships, contribute to business development strategies, and secure repeat business.
  • Committed to quality control, project delivery standards, and continuous learning.
  • Strong collaboration and problem-solving skills; capable of working independently or as part of a team.
  • Interest in environmentally impactful work with a variety of project types and clients.
  • Project management experience, including demonstrated ability to lead and execute multiple projects simultaneously.
  • Experience with emission control technologies and performing air quality risk assessments a plus.
  • Excellent communication skills for both technical and non-technical audiences.

Education/Experience:

  • Bachelor's or master's degree in engineering.
  • Professional Engineer (PE) license or the ability to obtain one within six months.
  • 10+ years of experience in air quality permitting and compliance in consulting, industrial, or regulatory settings.

Salary range: $100,000 - $150,000per year. The salary offered to a candidate is based on years of experience.

Benefits

Our focus on people means we offer a generous benefits program to help you create a solid foundation for health and security throughout your career, including:

  • Competitive compensation
  • Performance bonuses
  • 401(k) with matching contribution
  • Employee Stock Ownership Plan
  • Comprehensive health & well-being plans
  • Financial wellness plans
  • Work-life balance programs

Want to know more? Visitour benefits pagefor all the details.

Culture

We understand that selecting a job is about more than the day-to-day tasks. It's important to feel like you belong and safe to grow and progress along your career path. You'll find that at Hanson. We have an inclusive, diverse workforce awaiting to connect with you and numerous opportunities to cultivate your career, including:

  • Monthly educational webinars
  • Leadership training
  • Lunch & learn development sessions
  • 24/7 access to thousands of skill-building courses
  • Mentorship opportunities
  • Award-winning internship program
  • Employee recognition
  • And so much more!

AN EQUAL OPPORTUNITY EEO - EMPLOYER

We do not accept unsolicited resumesfrom recruiters or agencies/staffing firms.Resumesare only accepted from recruiters and agency/staffing firms if a signed agreement is in place at the inception of the recruiting effort and authorized for a specified position.