Job Posting: Emissions Modeler
State Air Resources Board
JC-520347
AIR RESOURCES ENGINEER (MAND)
$6,488.00 - $12,152.00 per Month
New to State candidates will be hired into the minimum salary of the classification or minimum of alternate range when applicable.
Final Filing Date: 6/24/2026
Application Methods:
Electronic (Using your CalCareer Account)
By Mail
Drop-off
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Job Description and Duties
This position can be located in Sacramento or Riverside County.
The On-Road Model Development Section (ORMDS) is recruiting for an Air Resources Engineer in the Mobile Source Analysis Branch (MSAB) of the Air Quality Planning and Science Division (AQPSD). This section is responsible for the development and refinement of the EMFAC on-road emissions inventory model. The EMFAC model supports air quality planning, transportation planning, photochemical modeling, and project level assessment. This section also plays a key role in development of on-road heavy-duty mobile source regulations by providing technical support to regulatory divisions within CARB.
Under the direction of the Section Manager, the incumbent will develop and utilize techniques to process, synthesize, and make sense of the increasing amounts of highly detailed data (e.g., portable emissions measurement system or PEMS, telematics) on mobile source emissions and activity. The incumbent will implement updates to input data, model formulations, and techniques into the EMFAC code using Python and MySQL. Through participation in various workgroups and potential team leadership opportunities, the incumbent will stay abreast of the state-of-the science in existing, new, or evolving data collection and data integration techniques related to on-road emission models and emissions modeling techniques (e.g. U.S. EPA's MOVES model). They will also provide review of technical reports, memoranda, and other documents intended for management or outside stakeholders.
In addition to technical data analysis and model development, staff are routinely asked to review the work of others, and to communicate with a wide variety of internal and external clients. We expect applicants to have an ability to communicate effectively on a technical and policy level, both verbally and in writing, with a wide variety of stakeholders including other CARB divisions, government agencies, policymakers, industry, environmental organizations, and the public.
CARB offers various modern interview options including remote phone and video interviews.
You will find additional information about the job in the Duty Statement.
Working Conditions
This position may be eligible for hybrid in-office work and in-state telework. The amount of telework is at the agency's discretion and is based on the California Air Resources Board's (CARB) current telework policy. While the CARB may support telework, some in-person attendance is also required.
The positions at the CARB may be eligible for telework with in-person attendance based on the operational needs of the position under Government Code 14200 for eligible applicants residing in California, subject to the candidate meeting telework eligibility criteria outlined in the CalEPA telework policy and/or future program need. Employees not residing in California are not eligible for telework. Regardless of hybrid telework eligibility, all employees may be required to report to the position's designated headquarters location at their own expense, as indicated on their duty statement.
Effective July 1, 2025, the California Department of Human Resources (CalHR) implemented the Personal Leave Program 2025 (PLP 2025). PLP 2025 directs that each employee shall receive a 3 percent reduction in pay in exchange for 5 hours PLP 2025 leave credits, monthly. The salary range(s) included in the job advertisement do not reflect the 3 percent reduction in pay.
Minimum Requirements
You will find the Minimum Requirements in the Class Specification.
Additional Documents
Position Details
Job Code #:
JC-520347
Position #(s):
673-710-3735-031
Working Title:
Emissions Modeler
Classification:
AIR RESOURCES ENGINEER (MAND)
$6,488.00 - $7,735.00 A
$7,428.00 - $9,296.00 B
$9,158.00 - $11,455.00 C
$9,712.00 - $12,152.00 D
New to State candidates will be hired into the minimum salary of the classification or minimum of alternate range when applicable.
# of Positions:
Multiple
Work Location:
United States
Telework:
Hybrid
Job Type:
Permanent, Full Time
Department Information
This employer participates in E-Verify and will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S.; for more information about E-Verify, please go to www.dhs.gov/e-verify
CARB values diversity at all levels of the organization and is committed to fostering an environment where employees from various backgrounds, cultures, and personal experiences are welcomed and can thrive. CARB believes the diversity of our employees collectively makes up one of the world's most respected environmental organizations. CARB offers various modern interview options, including remote phone and video interviews. Join CARB and help us improve the lives of all Californians.
Department Website: http://www.arb.ca.gov
Special Requirements
Applicants must include a Supplemental Questionnaire (SQ) for this recruitment. Applications without an SQ or including an SQ that does not directly answer all the items below will not be considered. Cover letters and resumes do not take the place of the SQ.
Please describe why you are qualified to help support the development of the EMFAC on-road emissions inventory model. How has your educational background, as well as programming and project management experience, prepared you for this position?
Application Instructions
Completed applications and all required documents must be received or postmarked by the Final Filing Date in order to be considered. Dates printed on Mobile Bar Codes, such as the Quick Response (QR) Codes available at the USPS, are not considered Postmark dates for the purpose of determining timely filing of an application.
Final Filing Date: 6/24/2026
Who May Apply
Individuals who are currently in the classification, eligible for lateral transfer, eligible for reinstatement, have list or LEAP eligibility, are in the process of obtaining list eligibility, or have SROA and/or Surplus eligibility (please attach your letter, if available). SROA and Surplus candidates are given priority; therefore, individuals with other eligibility may be considered in the event no SROA or Surplus candidates apply.
Applications will be screened and only the most qualified applicants will be selected to move forward in the selection process. Applicants must meet the Minimum Qualifications stated in the Classification Specification(s).
How To Apply
Complete Application Packages (including your Examination/Employment Application (STD 678) and applicable or required documents) must be submitted to apply for this Job Posting. Application Packages may be submitted electronically through your CalCareer Account at www.CalCareers.ca.gov. When submitting your application in hard copy, a completed copy of the Application Package listing must be included. If you choose to not apply electronically, a hard copy application package may be submitted through an alternative method listed below:
Address for Mailing Application Packages
You may submit your application and any applicable or required documents to:
State Air Resources Board
Essam Gad
Attn: Classification and Certification Unit
1001 I Street, 5th Floor
Sacramento, CA 95814
Address for Drop-Off Application Packages
You may drop off your application and any applicable or required documents at:
State Air Resources Board
Essam Gad
Classification and Certification Unit
1001 I Street, 5th Floor
Sacramento, CA 95814
The drop-off location is non-operational on weekends and holidays.
08:00 AM - 05:00 PM
Required Application Package Documents
The following items are required to be submitted with your application. Applicants who do not submit the required items timely may not be considered for this job:
Please see the Special Requirements section of this job advertisement for detailed instructions for the SQ submission.
Applicants requiring reasonable accommodations for the hiring interview process must request the necessary accommodations if scheduled for a hiring interview. The request should be made at the time of contact to schedule the interview. Questions regarding reasonable accommodations may be directed to the EEO contact listed on this job posting.
Desirable Qualifications
In addition to evaluating each candidate's relative ability, as demonstrated by quality and breadth of experience, the following factors will provide the basis for competitively evaluating each candidate:
The most competitive candidates will have the ability to lead strong technical teams, think creatively beyond CARB's traditional data analytics practices, and collaborate across CARB and with agencies at all levels of government. Successful candidates will also need to demonstrate excellent oral and written communication skills, understand, and successfully negotiate solutions to sensitive issues with tact and diplomacy, think strategically and speak articulately, be comfortable with a flexible management structure based on project teams, and readily adapt to changing priorities. Technical knowledge or experience in working with complex datasets, statistical analysis, mobile source emissions inventory methods and models, emissions testing, and other advanced monitoring techniques is also highly desirable. Policy, regulatory development, enforcement, and computer programming proficiency (such as in Python, MySQL and Linux) are also desirable. Applications will be screened and only the most qualified candidates will be interviewed.
Benefits
Benefit information can be found on the CalHR website and the CalPERS website.
Contact Information
The Hiring Unit Contact is available to answer questions regarding the position or application process.
Department Website: http://www.arb.ca.gov
Hiring Unit Contact:
Jake Rivas
(000) -
jake.rivas@arb.ca.gov
Please direct requests for Reasonable Accommodations to the interview scheduler at the time the interview is being scheduled. You may direct any additional questions regarding Reasonable Accommodations or Equal Employment Opportunity for this position(s) to the Department's EEO Office.
EEO Contact:
EEOP@arb.ca.gov
(000) -
EEOP@arb.ca.gov
California Relay Service: 1-800-735-2929 (TTY), 1-800-735-2922 (Voice) TTY is a Telecommunications Device for the Deaf, and is reachable only from phones equipped with a TTY Device.
Experience and Education
For experience/education to qualify during the application screening process and to ensure that minimum qualifications can be determined, applicants should include all employment history on the Employment Application (STD 678), including detailed job descriptions, hours worked per week, and start/end dates (MM/DD/YYYY). Application packages without this information may experience delayed processing times, and your eligibility for this position may be impacted.
If you are using education to meet the minimum qualifications for this position, you must submit a copy of your transcript or diploma. Applicants who completed their education outside the United States (with foreign degrees/transcripts) must obtain and submit verification of the United States course/degree equivalency.
Foreign education credential evaluation services can be found at https://www.naces.org
Failure to submit all the required documentation will result in an incomplete application and disqualification from consideration for this position.
Address for Mailing or Drop-Off Application Packages
Applying electronically via CalCareers is highly recommended. If submitting hardcopy applications (mail/drop-off), please email Essam.Gad@arb.ca.gov with the JC number in the subject line to confirm submission. Your email will serve as a time stamp that a document was dropped off before the final filing date. Drop-off applications must be received, and date stamped by 5:00 PM on the final filing date.
NOTE: Applicants must not include Social Security Numbers, LEAP status information or paperwork, Equal Employment Opportunity information, exam result notices or scores, or medical or criminal history information on any document within their application package.
You may submit your application and any applicable or required documents to:
California Environmental Protection Agency/State Air Resources Board
Attn: Human Resources Branch/ Classification & Certification unit, JC-520347
1001 I Street, 5th Floor/P.O. Box 2815
Sacramento, CA 95814
Drop-off applications must be received, and date stamped by 5:00 PM on the final filing date. The drop-off location is non-operational on weekends and holidays.
Equal Opportunity Employer
The State of California is an equal opportunity employer to all, regardless of age, ancestry, color, disability (mental and physical), exercising the right to family care and medical leave, gender, gender expression, gender identity, genetic information, marital status, medical condition, military or veteran status, national origin, political affiliation, race, religious creed, sex (includes pregnancy, childbirth, breastfeeding and related medical conditions), and sexual orientation.
It is an objective of the State of California to achieve a drug-free work place. Any applicant for state employment will be expected to behave in accordance with this objective because the use of illegal drugs is inconsistent with the law of the State, the rules governing Civil Service, and the special trust placed in public servants.