Correctional Officer

O'Fallon, MO
St. Charles County Government

Salary: Min $47,167.20 per year – Mid $58,592.80 per year.

Position Summary:

The purpose of this position is to perform inmate supervision, custody, control, escort, intake, release, building security and jail recordkeeping tasks in an assigned area.

Successful completion of all components of the examination process is required in order to be considered. The testing process consists of a video exam, counting exam, reading exam, and writing exam. Candidates must pass all components of the examination process to be considered for an interview. Candidates must also pass a criminal background investigation and a PREA (Prison Rape Elimination Act) check suitable for law enforcement, including a criminal record and drivers’ license check. Candidates are required to have a police record free of pending charges and felony convictions.

Essential Functions:

  • Performs housing unit control center tasks. Observes inmate activities and maintains discipline, security, custody and control.
  • Addresses inmate concerns and answers questions. Operates high security doors. Observes Correctional Officers in unit. Sorts, opens and inspects in-coming inmate mail. Issues hygiene and health supplies
  • Performs Internal Transport Officer tasks. Responds to and intervenes in incidents and altercations.
  • Subdues inmates. Responds to medical emergencies and administers first aid.
  • Conducts cell moves and searches. Escorts inmates to appointments for visitation, attorney visits, law library, medical/dental care, arraignment, etc.
  • Counts inmates. Participates in riot control. Escorts inmates to recreation out of unit. Delivers meals, water, ice and dietary supplements to inmates. Provides security for facility court room.
  • Checks inmates in and out for work release. Oversees receipt of food and other supplies. Oversees repair and maintenance personnel. Conducts disciplinary review of inmates.
  • Performs intake/booking tasks. Screens and refuses or accepts arrested persons and commitments from law enforcement personnel.
  • Fingerprints, photographs, documents general physical condition, conducts inmate searches, and seizes, inventories and secures inmate personal property. Computes sentences and release dates.
  • Enters information to Missouri Uniform Law Enforcement System (MULES) and queries system for criminal histories.
  • Determines custody classification. Conducts new inmate orientation.
  • Performs Central Control Officer tasks. Monitors facility high security doors. Controls inter-facility movement and communication. Accepts and receipts bond payments and inmate account deposits.
  • Receives, sorts and logs in-coming and out-going computer mail. Greets, logs and directs visitors.
  • Ensures visitor security. Monitors security cameras. Controls facility keys and security. Dispatches personnel via radio as needed. Answers and routes in-coming telephone calls.
  • Logs activities. Prepares incident, complaint, log and investigation reports. Initiates disciplinary reports to include a request for inmate disciplinary action in response to a rule violation.
  • Participates in on-going training. Attends pre-shift and other mandatory meetings.
  • Maintains knowledge of current corrections policies, procedures and practices; and techniques to maintain inmate custody, control, discipline and security.
  • May perform specialized officer duties such as Fire/Safety, Facility, Equipment, Plans, MULES, First Aid, Commissary when assigned, Property, Fleet Management, Legal Library, Firearms and Training
  • May also be responsible for laundry services to a specialized duty, an officer may be required to attend specialized training, become familiar with unique equipment particular to their assignments.
  • Must be available to work various schedules as shifts rotate.
  • May be required to work mandatory overtime on the same or a different shift than the one assigned.


  • General or technical high school diploma or equivalent.
  • Prefer minimum one (1) year experience in Corrections, Law Enforcement, or other related experience.
  • Valid Missouri motor vehicle operator license.
  • Must successfully complete all components of the Correctional Officer Testing Process.
  • Must be available to work various schedules as shifts rotate.
  • Completion of OC Pepper Spray, PPCT, department training.
  • Ability to pass all legal, physical, mental and performance standards.