firefighters working to put out a house on fire

​Firefighter Recruitment

Becoming a City of Thornton Firefighter

Persons interested in becoming a City of Thornton firefighter must submit an online job application DURING the posting period to be considered.

Testing and Screening

The City of Thornton participates in the Colorado FIREfighter Testing Consortium testing process to conduct the written examinations for entry level firefighter positions. An application and fee paid directly to Colorado FIREfighter Testing Consortium are required. Testing is conducted twice per year. Those who successfully pass the written test are placed in a centralized pool of candidates for one year from the test date. Candidates registered with Colorado FIREfighter Testing Consotrium at the time of the City of Thornton job posting may also be considered.

If you are interested in finding out more about the Colorado FIREfighter Testing Consortium testing procedures to become a firefighter, please contact them directly by visiting for more information.

City of Thornton conducts additional testing such as the Candidate Physical Ability Test (CPAT), oral board examinations, and other selection and background processes for potential new fire recruits. To learn more about our recruitment process, speak with our Human Resources Office at 303-538-7245.

Thornton Requirements

The city of Thornton Fire Department requires the following to become a firefighter:

  • High School diploma or GED
  • Current EMT/Basic or higher medical provider certification, EMT-P is preferred
  • Valid Colorado Drivers License with a safe record
  • Pass Colorado FIREfighter Testing Consortium testing and screening process
  • Pass CPAT; pass entry level oral board examination
  • Successful completion of the requirements for Colorado State Firefighter I or higher certification within one year of entry-on-duty

Vacancy Notification

To be notified with a position becomes available, simply complete a job vacancy notification card from the Employment page of the City's website. Search for and Select the Firefighter IV/III/II/I job description title. Click on the option, Email me when jobs like this become available, and complete all the requested information. When the job is posted externally within the next 12-month period, a notification email will be sent to you and then you will be able to apply online.