Mark A Jefferson Sr.
Washington,DC
Summary
Experienced with mechanical and electrical system maintenance, ensuring optimal performance and safety. Utilizes diagnostic tools and techniques to troubleshoot and resolve issues efficiently. Knowledge of preventive maintenance practices that minimize downtime and extend equipment lifespan.
Overview
39
39
years of professional experience
Work History
Maintenance Technician
United House Of Prayer
Washington DC
04.2023 - 03.2025
- Operated varied hand and power tools to complete repairs.
- Used problem-solving skills to alleviate issues efficiently with minimal supervision.
- Troubleshot equipment breakdowns and performed preventive maintenance.
- Followed work orders and specifications for machine and equipment replacement, repair, or maintenance.
- Adapted quickly to changing priorities and workloads, effectively managing time and resources to complete tasks on schedule.
- Performed scheduled maintenance on electrical, plumbing, and HVAC systems.
Federal Police Officer/Shift Supervisor
Naval District Washington Police Department
Washington, DC
03.2005 - 08.2019
- As a “Federal Police Officer I performed duties in accordance with the policies and procedures set forth by the Naval District Washington and the Precinct that I was assigned.
- Conducts foot, and vehicle patrols of areas in which I was assigned to ensure the safety of the Government employees and visitors that entered the facility.
- I ensured the security of the Government buildings by verifying that all doors and windows were secured and not propped opened.
- Also ensured that all classified materials were secured and out of the publics view.
- Foot patrols are completed to ensure that there are no safety hazards such as lights burned out in stairways, garages, and hallways checking for evidence of fire in the area such as smoke, smoldering fire in trash containers.
- Checked for suspicious packages or odors in the air.
- Checked identifications of all persons in the area to ensure that they are authorized to be in the area.
- Vehicle patrols are conducted checking the exterior of all Government buildings, garages, performing traffic stops such as (failure to stop at posted signs) speeding violations, and taking accident reports.
- Conducts field interviews for the purpose of gathering information concerning incidents or crimes that took place.
- Cordon of and secured crime scenes, interviewed witnesses, complainants, victims, and suspects.
- Detained and apprehended suspects.
- Secured evidence from the crime scene, and took pictures of the crime scene.
- Ensured all incidents and offenses were properly reported and documented.
- Used computer programs to complete reports, track cases, prepare forms.
- Examples of forms are Form 1103 (daily logs that contained information that took place through out the tour of duty on an hourly basis), and Form 1051 (weapons and equipment log to ensure that all equipment and weapons were accounted for on a daily basis) and Form 3157-FPS (description of scene when there was an investigation of a crime scene).
- Responsible for turning over all reports to the shift commander at the end of my tour of duty.
- Performs duties on various gates ensuring compliance with the Standard Operating Procedures.
- Checked the identifications of approximately 2,500 people to include employees, vendors, contractors, and visitors entering the facility to ensure that their identification was current and that it matched the person presenting the identification.
- Give instructions, directions, orders, oral reports to ATR, COTR, SUPV, and other officials.
- Responsible for ensuring that all identifications that were confiscated were turned over to the proper authorities.
Armed Force Protection Officer
Chenega Technical Products LLC/Vance Federal
Fairfax, VA
09.2003 - 03.2005
- As an Armed Security Officer assigned to the Walter Reed Army Medical Center, I performed duties in accordance with the policies and procedures set forth by Walter Reed Army Medical Center UCMJ and the Provost Marshall’s Office.
- My primary duties on the gates were to ensure compliance with the Standard Operating Procedures.
- Checked identification of approximately 1,500 people to include employees, vendors, contractors, and visitors entering the facility to ensure that their identifications were current and that it matched the person presenting the identification.
- Gave instructions, directions, orders, oral reports to ATR, COTR, SUPV, and other officials.
- Responsible for ensuring that all identifications that were confiscated were turned over to the Provost Marshall’s Office.
- Conducted vehicle inspections on all commercial vehicles such as taxicabs, delivery trucks, and all vehicles that did not display DOD decals.
- Inspections were conducted to ensure that no explosives or other illegal contraband entered the facility.
- Conducted inspections on all vehicles that were selected at random for expired stickers and decals.
- Utilized mirrors to check the undercarriage of vehicles for any suspicious packages or wiring.
- Conducted security patrols of the area that I was assigned to and ensured that all doors and windows were properly secured.
- Checked for safety hazards such as burned out lights, liquid spills, frayed electrical wiring, and electrical appliances left unattended and confidential materials left out in the public’s view.
- Checked the exterior of the buildings in my area to ensure that no doors or windows were left propped open.
- Checked the identifications of individuals in the area to ensure that they were authorized to be in the area and detained suspects for arrest who were not authorized.
- Conducted field interviews and gathered information concerning incidents that took place.
- Cordon of areas, obtained information from witnesses, complainants and suspects.
- Detained suspects and aided the Department of the Army Police in the arrest.
- Responsible for ensuring that all reports were completed at the end of my tour of duty.
- Maintained a daily log of current events, chain of custody reports, vehicle log reports, pedestrian log reports, and incident reports.
- Ensured that all reports were turned over to the shift supervisor.
Security Officer
ICS Security
Washington, DC
05.2003 - 09.2003
- As an unarmed Security Officer assigned to the Washington Convention Center I performed duties in accordance with the policies and procedures set forth by the Washington Metropolitan Police Department and the Washington Convention Center.
- Conducted routine security patrols checking for safety hazards such as stairways blocked, lights burned out, water and other liquid substance on floors.
- Also checked for unsecured doors leading to the outside as well as room doors that were not in use, checked for fire hazards such as trash or other debris, frayed electrical wiring, coffee pots or other electrical appliance that may have been left on and unattended.
- Monitored and controlled access to the Convention Center, this was done by checking each identification of approximately 3,000 people to include visitors, vendors, contractors, and employees.
- Ensured that the identifications were current and that it matched the individual presenting the identification.
- Maintained a daily log report of current events throughout the day, visitor’s and contractor’s log report on a daily basis.
- Providing information to visitors as to where certain rooms and halls were located, as well as close by places of entrances such as restaurants, movie theatre, and museums.
- Conducted investigations of incidents that took place such as missing property, vandalism, and personal injury.
- Interviewed complainants, witnesses, and subjects to obtain necessary information needed to conduct a proper and aided the local police in their investigation.
- Assisted local emergency units such as fire fighters, police, and other local agencies that needed assistance finding various rooms, throughout the Convention Center.
- Assisted various agencies such as United States Secret Service, in sweeping the building when dignitaries were due to visit.
- Corresponded with building engineers, internal security in the event of an evacuation of the building due to fire, bomb threat, or other life threatening incidents that could occur.
- Monitored cctv monitors checking for unusual incident that may be occurring in the absence of a physical security officer.
- This system was also used to record the area when dispatch was notified of an incident in a particular area.
- This was done to be able to provide an accurate and accountability of what took place.
Special Police Officer/Loss Prevention
Renaissance Washington DC Hotel
Washington, DC
09.1998 - 07.2001
- As a Special Police Officer assigned to the Washington DC Renaissance Hotel performed duties in accordance with policies and procedures set forth by the Renaissance Hotel and the Metropolitan Police Department.
- Completed daily log reports on a daily basis by typing and tracking them on a computer.
- The computer was also used to complete other forms such as equipment logs, incident reports and forms used for investigations.
- Conducted inspections of all packages and bags leaving the hotel through the employee entrance.
- Monitored CCTV monitors for any unusual activity occurring throughout the hotel.
- Dispatching officers to various calls that came into the security office for assistance such as guess locked out of room, guess injury, missing property, room theft, and associate injury.
- Monitored hotel lobby to ensure that vagrants did not enter the hotel as well as panhandlers.
- Conducted security patrols of the hotel, checking for safety hazards, fire hazards and other security related issues.
- Patrols were also conducted on the exterior of the hotel ensuring that all exit doors are properly secured.
- These patrols were also conducted in the garage areas of the hotel to ensure proper lighting for guess safety, ensured that there was no one in the area that did not belong.
- Issued out equipment to hotel associates such as keys, and radios.
- Issued barring notices to offenders of unlawful entry, and panhandling.
- Corresponded with other agencies such as fire department, police department and other agencies that entered the hotel.
- Corresponded with special agents that were performing executive protection such as the President of the United States attending a function in the hotel, and other dignitaries.
- Corresponded with the local police department and the States Attorney’s office with information regarding any arrest that was made at the hotel.
Special Police Officer/ Shift Supervisor
Omni Shoreham Hotel
Washington, DC
05.1995 - 08.1998
- Performed duties as a Special Police Officer in accordance with the guideline set forth by the Washington Metropolitan Police Department.
- Conducted routine security patrols of the hotel to ensure that the guess and associates were safe.
- This was achieved by checking for safety hazards, fire hazards, and any breaches in security throughout the hotel.
- Ensured that all doors were secured such as exit doors and any other door that led to the outside of the hotel.
- Checked for safety hazards such as frayed wiring, electrical appliances left turned on and unattended, trash not properly disposed of, proper lighting in stairways, hallways, water spills and other substances that would be slippery.
- During patrols checked to ensure that all exit doors were properly secured and free from obstructions, guess room doors were not left ajar, and windows were properly secured.
- Conducted cash escorts from the cashier’s office to the main desk to be placed in the safe.
- Provided information to guess about places of attraction around the Metropolitan area, such as places of dining, sight seeing, movie theatres, and other areas of attraction.
- Provided information and assisted with the purchase of tickets for the local tours.
- Received information and conducted investigations on various types of incidents.
- This included but not limited to guess injury, room theft, guess illness, associate injury, damaged property, loss property, and vandalism.
- Monitored the lobby of the hotel watching for the well being of the guess and their belongings.
- Assisted guess in catching Taxicabs and all other local transportation.
- Completed daily logs and maintain a record of events that occurred through the day, other forms used included equipment log, chain of custody form, and incident reports.
- In July of 1996 promoted to the position of Shift Supervisor.
- Provided supervision to the officers that were assigned to the shift, provided training such as report writing, fire alarm procedures, and evacuation procedures.
- Maintained a supervisor log to keep a record of all incidents that occurred on the shift.
- Reported to the Director of any problems that may have occurred, ensured that all officers had all their equipment that was issued to them.
- Corresponded with different departments throughout the hotel such as engineers, laundry, and front desk.
- Corresponded with outside agencies such as United States Secret Service, Metropolitan Police Department, and any other agency that was responsible for Executive Visitors.
Special Police Officer/Project Manager
Executive Security Inc.
Washington, DC
08.1986 - 05.1995
- As a Special Police Officer Assigned to the District of Columbia Department of Public Works Water and Sewer Administration.
- I performed duties in accordance with the Washington Metropolitan Police Department policies and procedures.
- Responsible for the security of all visitors, employees, and their property.
- This was achieved by completing and maintaining visitor logs, and daily log reports.
- Maintained an equipment log to insure the whereabouts of all equipment at all times.
- Monitoring and properly signing in all visitors that entered the facility, and issuing them a visitor pass, this also included checking for valid identification, checking to ensure that the id was valid by checking the expiration date.
- Conducted security checks through out the facility, monitoring cctv cameras for any unusual incidents that may be occurring, monitoring the fire control panel in the event of an fire alarm being pulled through out the installation, or any other device that may have been activated such as smoke detectors, heat detectors, and carbon dioxides.
- Dispatching the proper personnel in the event of a fire within the facility to include security personnel.
- Receiving information that came in the security dispatch office to ensure a proper report would be completed.
- Conducted investigations by speaking with complainants, victims, and suspects gathering all information necessary to complete the investigation.
- Ensured that all witness completed a sworn statement of what they seen, or heard.
- Conducted security patrols around the exterior of the facility to ensure that all exit doors were secured as well as all windows.
- October 1988 promoted to the position of Project Manager of the Department of Public Works.
- Responsible for the supervision of 210 officers.
- Ensuring that all officers were properly equipped for duty.
- Conducted all training of all new officers that were assigned to the site.
- Implemented new security measures this included fire evacuation plans, bomb threats procedures, terrorist, and demonstration groups.
- Conducted post inspections through out the day to ensure that all officers were in accordance with the policies and procedures set forth by the Department of Public Works.
- Assisted the local police department with all arrest that was made on the facility, this included completing all necessary paper work.
- Paper work consisted of forms pd-251 incident report, 252 chain of custody, 47 rights waiver, and 163 statements of facts.
- Assisted State’s Attorney office with papering the case and preparing them for trial.
- Testified for the State in reference to the facts given in the case my knowledge, and actions in the case.
- Secured crimes scenes to ensure that no evidence was removed or tampered with until proper authority had arrived on scene and took over the scene.
- Affected arrest when it was necessary to do so for crimes committed in or around the facility.
- Detained and questioned personnel that were in an area that was prohibited as to their being in the area.
Education
GED -
Cardozo Sr. High School
Washington, DC01.1983
No Degree in Academy Certificate -
Naval District Washington Police Academy
Washington, DC01.2003
Specialist - Microsoft word, Word Processing, Data Entry, Excel
American Institute of Business Technology
Washington, DC01.1997
Skills
- Typing
- Typing speed 55 wpm
- Word Processing
- Spread sheets
- Excel
- Building maintenance
- Mechanical troubleshooting
- Preventive Maintenance
- Safety awareness
- Hand and power tools
- Parts replacement
- Plumbing
Accomplishments
- Achieved [Result] by completing [Task] with accuracy and efficiency.
Other Information
Proficient in typing, typing speed 55 wpm., Proficient in Word Processing, spreadsheets, Excel., Active Elder in the United House of Prayer
Professional Licenses Certificates
U.S. Government Motor Vehicle Operator's Identification Card, Naval District Washington Department of Public Safety
Professional Ratings Awards Recognitions
- Outstanding performance evaluation, 10/1987
- Letter of Accommodation from the Director of the Department of Public Works for Outstanding Work Performance, 08/1988
- Officer of the Year, 1990
- Supervisor of the Year, 1991
- Promoted to police corporal, 04/21/2006
Training
- Phase 1, Basic Law Enforcement Training, Naval District Washington Police Academy
- Basic ASP Baton Course, Armanment Systems and Procedures, Inc.
- Basic Certification Training for OC Aerosol Projectors, First Defense Technology
- Police Emergency Vehicle Operations Course, Department of the Navy and U.S. Department of Transportation, National Highway Traffic Safety Administration
- First Responder Course, Naval Criminal Investigative Services, 06/13/2005 to 06/18/2005
Military Service
- Active Duty, 05/1985, 06/1986, U.S. Navy
- Active Duty, 09/1983, 11/1983, U.S. Army
- Reserve Duty, 11/1983, 04/1984, U.S. Army, General Discharge, Hardship under 10 USC 1173
Languages
English
Native or Bilingual
Timeline
Maintenance Technician
United House Of Prayer
04.2023 - 03.2025
Federal Police Officer/Shift Supervisor
Naval District Washington Police Department
03.2005 - 08.2019
Armed Force Protection Officer
Chenega Technical Products LLC/Vance Federal
09.2003 - 03.2005
Security Officer
ICS Security
05.2003 - 09.2003
Special Police Officer/Loss Prevention
Renaissance Washington DC Hotel
09.1998 - 07.2001
Special Police Officer/ Shift Supervisor
Omni Shoreham Hotel
05.1995 - 08.1998
Special Police Officer/Project Manager
Executive Security Inc.
08.1986 - 05.1995
No Degree in Academy Certificate -
Naval District Washington Police Academy
Specialist - Microsoft word, Word Processing, Data Entry, Excel
American Institute of Business Technology
GED -
Cardozo Sr. High School