Professional Summary
Overview
Work History
Education
Timeline
Skills

Samuel Fonseca Castaneda

U.S. Embassy Zagreb Croatia
Fremont,CA
7
years of professional experience

Honorably discharged U.S. Marine Sergeant with seven years of experience in armed security, access control, and small-team leadership at U.S. diplomatic assignments. Proven ability to operate effectively in high-threat environments and respond swiftly to emergencies, ensuring the safety and security of personnel and assets. Actively seeking opportunities in executive protection and armed security roles throughout Northern California.

Work History

Supply Team Leader Marine Air Support Squadron 2/ 31st Marine Expeditionary Unit

3 Years 2 Months
United States Marine Corps | 09.2019 - 11.2022
  • Served as a supply liaison for the 31st Marine Expeditionary Unit on board the U.S.S Tripoli Amphibious assault Ship.
  • Led team execution of daily operations, maintaining discipline, accountability, and mission readiness.
  • Stood as an interior guardsman at the Henoko Ammunition Supply point located on Camp Schwab, Okinawa, Japan, conducting day and night patrols unarmed and searched uncleared vehicles entering the facility.

Marine Security Guard/ Assistant Detachment Commander

1 Year 5 Months
U.S. Embassy Zagreb Croatia | 04.2025 - 09.2026
  • Served as Assistant Detachment Commander for a 6-7 Marine team, managed Marine housing operations, and daily leadership.
  • Stood 2,464 hours of Armed internal security and access control, including alarm response and incident reporting.
  • Conducted armed patrols, maintain a visible security presence to deter unauthorized activity.

Marine Security Guard

1 Year
U.S. Consulate General Karachi | 03.2024 - 03.2025
  • Completed 1,700+ hours of armed security and access control protecting classified material under a high threat assignment.
  • Responded to emergency response alarms, and maintained a high level of security presence.
  • Ensured the safety of U.S. Direct hired, locally employed personnel, and limited access visitors within the consulate grounds.

Marine Security Guard

9 Months
U.S. Embassy Ottawa | 06.2023 - 03.2024
  • Provided 1,176 hours of internal security and ran 48 contingency drills in a 5 eye/NATO Allied country.
  • Monitored access points and verified credentials for visitors, staff, and deliveries.
  • Enforced embassy security protocols to safeguard personnel, facilities, and controlled areas.

Education

High School Diploma

Adams City High School | Commerce City, CO | 05-2018

Marine Corps Ground Supply School | Marine Corps Base Camp Lejeune, NC | 08-2019

Marine Corps Embassy Security Guard School | Marine Corps Base Quantico, Virginia | 03.2023

Oleoresin Capsicum Level 1 (OC Spray) qualified

Department of State firearms qualification ( M4 Carbine, Glock 19M, and Remington M870 shotgun.)

Timeline

Marine Security Guard/ Assistant Detachment Commander

U.S. Embassy Zagreb Croatia
04.2025 - 09.2026Read More

Marine Security Guard

U.S. Consulate General Karachi
03.2024 - 03.2025Read More

Marine Security Guard

U.S. Embassy Ottawa
06.2023 - 03.2024Read More

Supply Team Leader Marine Air Support Squadron 2/ 31st Marine Expeditionary Unit

United States Marine Corps
09.2019 - 11.2022Read More

Adams City High School

High School Diploma
Read More

Marine Corps Ground Supply School

Read More

Marine Corps Embassy Security Guard School

Read More

Skills

  • Bilingual in English and Spanish
  • Top Secret Clearence (Renewed 2026)
  • Active Diplomatic Passport
  • Marine Corps Martial Arts Program- Brown Belt
Samuel Fonseca Castaneda