Dennys A. Castellon Jr.
Chicago
Summary
Dynamic security leader with extensive experience at the Federal Bureau of Prisons, excelling in crisis management and risk assessment. Proven track record in mentoring teams and enhancing operational compliance. Skilled in physical security technology and strategic planning, ensuring safety in high-stakes environments while fostering cross-functional collaboration.
Overview
20
20
years of professional experience
Work History
Correctional Systems Officer / Lieutenant
Federal Bureau of Prisons
Chicago
08.2014 - Current
- Lead emergency response teams and manage the security of high-risk inmate populations, including Special Housing Units (SHU).
- Conduct regular risk assessments and internal audits, ensuring compliance with Bureau of Prisons regulations and standards.
- Provide mentorship and operational leadership to officers; oversee shift operations and training for new staff.
- Interface with local, state, and federal law enforcement agencies on matters of inmate transportation, detainers, and criminal investigations.
- Coordinate emergency response drills and act as liaison for incident reporting and security operations.
- Maintain expertise in electronic security systems, firearms, restraint methods, and emergency procedures.
Fire Control Team Chief (Staff Sergeant)
United States Marine Corps Reserve
West Palm Beach
01.2010 - 05.2015
- Directed joint fire operations and coordinated with U.S. and allied forces to integrate ground, naval, and air fire support.
- Trained multinational forces in tactical operations, close air support coordination, and operational risk management.
- Developed and led mission-critical training exercises in partnership with U.S. Special Operations Forces.
- Conducted combat operations in hostile environments and facilitated communication between combat units and command leadership.
Loan Analyst
National Auto Lenders
Miami Lakes
11.2011 - 08.2014
- Conducted financial risk assessments for vehicle loans; mitigated potential fraud and asset loss.
- Utilized tracking systems and credit databases to verify applicant data and secure high-value assets.
Executive Protection Agent
Strike Force Protective Services
Cooper City
03.2011 - 11.2011
- Provided VIP protection to executives, government officials, and public figures in dynamic and high-threat environments.
- Deployed to corporate offices and public venues to ensure safe and secure event operations.
- Collaborated with clients to develop individualized threat mitigation strategies.
Local Security Chief (Corporal)
United States Marine Corps
Camp Lejeune
06.2005 - 07.2009
- Managed a 13-personnel security detail for detainee handling in a combat zone; oversaw daily operations of secured facilities.
- Conducted detainee transfer and release operations in coordination with joint task force units.
- Trained personnel in use-of-force protocols, facility defense, and personal security details.
- Served as a cultural liaison and translator during operations in Iraq, enhancing mission effectiveness.
Education
Master of Business Administration (MBA) -
Keiser University
Fort Lauderdale, FL07.2025
Bachelor of Arts - Criminal Justice
Keiser University
Fort Lauderdale, FL03.2021
Associate of Arts - Criminal Justice
Keiser University
Miami, FL08.2013
Skills
- Security & Risk Management
- Crisis & Incident Management
- Physical Security Technology (CCTV, Access Control, Alarms)
- Federal & Military Law Enforcement Leadership
- Internal Audits & Compliance
- Strategic Planning & Execution
- Team Leadership & Staff Development
- Cross-Functional Collaboration
- Policy Development & Enforcement
Technology And Systems
- Access Control Systems (e.g., Lenel)
- CCTV Surveillance Systems
- Alarm Monitoring Platforms
- Federal Law Enforcement Databases
- Microsoft Office Suite, Google Workspace
Languages
- Spanish, Fluent
- Arabic, Conversational
Certifications And Recognition
- Expert Rifle & Pistol Qualification (Federal & Military)
- FLETC Class Commander Award, 2015
- Officer of the Quarter, MCC Chicago, 2021 & 2022
- Certificate of Commendation, USMC, 2008–2009
- Time-Off & Special Acts Awards, BOP, 2015–2020
- Multiple combat and service ribbons from USMC
Security Clearance
Active Federal Background (available upon request)
Affiliations
- Blue Belt in Brazilian Jiu Jitsu
Timeline
Correctional Systems Officer / Lieutenant
Federal Bureau of Prisons
08.2014 - Current
Loan Analyst
National Auto Lenders
11.2011 - 08.2014
Executive Protection Agent
Strike Force Protective Services
03.2011 - 11.2011
Fire Control Team Chief (Staff Sergeant)
United States Marine Corps Reserve
01.2010 - 05.2015
Local Security Chief (Corporal)
United States Marine Corps
06.2005 - 07.2009
Master of Business Administration (MBA) -
Keiser University
Bachelor of Arts - Criminal Justice
Keiser University
Associate of Arts - Criminal Justice
Keiser University
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