Summary
Overview
Work History
Education
Skills
Timeline
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Marcella Rosenboro

Baltimore,MD

Summary

Dedicated and professional Security Officer with 20+ years of experience in hospital, court, and private security, including extensive service at the University of Maryland Medical System. Skilled in incident reporting, conflict resolution, and emergency response with proven success in high-pressure environments. Strong communicator with the ability to adapt quickly to new settings while enhancing safety protocols and delivering exceptional customer service. Certified in CPR, BLS, and Security Officer Training, with a consistent record of maintaining safety and professionalism for staff, patients, and visitors.

Overview

28
28
years of professional experience

Work History

Security Officer

University Of Maryland Medical System
02.2019 - Current

• Enforce hospital security and safety policies through regular patrols and surveillance, emergency response and crisis management.

• Respond to dispatch calls, including medical emergencies, patient restraint, and ambulance/helicopter arrivals.

• Conduct investigations of incidents and collaborate with Baltimore City Police and UMB Police.

• Provide information, escort services, and customer service to staff, patients, and visitors.

• Maintain accurate logs and reports of daily incidents and security activities.

• Support trauma and critical care teams by securing restricted areas and ensuring safe.

Deescalation & Conflict resolution.












Security Officer/ Lieutenant /Rover

Admiral Security
06.2012 - 02.2019
  • Supervised teams of security officers across multiple sites, including training, scheduling, and post inspections.
  • Conducted patrols of buildings, grounds, and worksites by vehicle and foot.
  • Monitored CCTV systems and identified potential risks or suspicious activity.
  • De-escalated disputes, prepared incident reports, and maintained daily logs.
  • Greeted and directed visitors, screened individuals for weapons and contraband, and enforced access control procedures.

Security Officer

Watkins Security
12.2011 - 06.2012
  • Monitored lobby areas to ensure safety and security.
  • Conducted bag checks and screened individuals for weapons and contraband.
  • Greeted and assisted visitors and employees upon entry.
  • Patrolled parking lots and buildings to deter unauthorized activity.
  • Verified employee identification for garage access control.
  • De-escalated conflicts with visitors and employees to maintain a safe environment.

Court Security Officer

Baltimore City Sheriff Department
10.2001 - 10.2002
  • Monitored courtroom activities to ensure safety and security of judges, staff, and visitors.
  • Conducted inspections of individuals and belongings entering the courthouse to detect weapons and contraband.
  • Provided protection for judges, employees, and court personnel.
  • Escorted prisoners securely between holding areas and courtrooms.
  • Locked and secured courthouse entrances and conducted routine security checks.
  • Assisted the public by providing information and directions within the courthouse.
  • Maintained crowd control for jurors and visitors to ensure orderly proceedings.
  • Operated screening equipment including magnetometers, x-ray machines, and handheld devices to prevent unauthorized items from entering.

Security Officer

Ray Butler Security
11.1997 - 01.2000

Conducted patrols, escorted visitors, and secured entrances/exits.

Education

University Of Maryland Medical System
Baltimore, MD

Certificate Of Completion - Court Security Officer

Baltimore City Sheriff's Office Training Academy
Baltimore, MD
07-2002

High School Diploma -

Fairmount Harford Institute
Baltimore, MD
06-1993

Skills

  • Proficient in security patrols
  • Emergency response coordination
  • Effective de-escalation techniques
  • Court & Hospital Security Procedures
  • Email communication support
  • Customer engagement
  • Effective communication
  • Efficient data input
  • Microsoft Word
  • Conflict resolution
  • Document duplication and transmission
  • Professional phone communication

Timeline

Security Officer

University Of Maryland Medical System
02.2019 - Current

Security Officer/ Lieutenant /Rover

Admiral Security
06.2012 - 02.2019

Security Officer

Watkins Security
12.2011 - 06.2012

Court Security Officer

Baltimore City Sheriff Department
10.2001 - 10.2002

Security Officer

Ray Butler Security
11.1997 - 01.2000

University Of Maryland Medical System

Certificate Of Completion - Court Security Officer

Baltimore City Sheriff's Office Training Academy

High School Diploma -

Fairmount Harford Institute
Marcella Rosenboro