Guillermo Santiago Jr.
Garner,NC
Summary
Marine Corps Veteran with 23 years in maintenance/production environments. Known for safe, defect-free work, strict procedure compliance, and strong attention to detail. Hands-on experience with hand tools and industrial power tools, troubleshooting mechanical systems, and performing quality checks to verify work to standard. Lean Six Sigma Yellow Belt trained; ready to support Caterpillar (Clayton, NC) with repetitive assembly/adjustment work, safety-first execution, and continuous improvement.
Overview
23
23
years of professional experience
1
1
Certification
Work History
Automotive Technician/Motor Transport
United States Marine Corps
03.2002 - 01.2025
- Led a 45-person team in a high-tempo maintenance operation, reinforcing standard work, safe tool use, and consistent execution of documented procedures.
- Coordinated ordering and staging of repair parts (2,580+ requisitions) to keep work moving, reduce waiting time, and support on-time completion of scheduled tasks.
- Supported quality-focused work by verifying repairs and readiness to standard; sustained 90%+ equipment readiness through disciplined troubleshooting and follow-through.
- Controlled dispatch operations for 125 vehicle trips, moving 370,395 lbs. of cargo and 312 personnel with emphasis on accuracy, repeatable processes, and schedule compliance.
- Implemented monthly safety and hazmat training for 134 personnel to reinforce PPE use, prevent incidents, and maintain compliance—supporting a safe, defect-free work environment.
- Managed the company safety program and achieved best semi-annual inspection results in years through audits, corrective actions, and clear standards.
- Conducted 142 facility inspections to identify hazards and drive corrective actions; supported continuous improvement by eliminating unsafe conditions and sources of waste.
Motor Transport Maintenance Team lead Instructor
United States Marine Corps
11.2017 - 07.2021
- Successfully trained 135 students by delivering formal instruction on automotive electrical, fuel, hydraulic brake, and HVAC systems; evaluated hands-on performance through practical exercises and testing.
- Trained 100 students across 300+ hours of classroom and hands-on lab instruction on differential, transfer case, and transmission repair; reinforced proper tool use, step-by-step procedures, and test verification (including dynamometer testing).
- Provided mentorship and guidance to the students, so they can master the knowledge, skills, and abilities to perform the functional tasks and master all formal core plus training events for their Military Occupational Specialty.
- Supervised, provided input, coordinated, and assisted in the development of the 12 Master Lesson File for the Joint Light Tactical Vehicle curriculum for Systems Repair in the advance course.
- American/Black History month and Women symposium month with over 160 attendees.
Quality Control chief/Maintenance Chief/Supervisor CLB-8
United States Marine Corps
02.2009 - 11.2012
- Maintained accountability of over 70 Marines and ensure that they were up to date on their training, medical, and dental.
- Successfully supervised the completion of over 400 Limited Technical Inspections (LTI).
- Managed the completion of over 1400 Equipment Repair Orders (ERO), over 6600 Equipment Repair Order Supply List (EROSL) for the successful repair of over 2000 pieces of equipment while deployed to Afghanistan in Support of Operation Enduring Freedom.
- Coordinated and managed the removal of over $900,000 of hazardous waste and unserviceable gear in the maintenance compound.
- Managed the only tire shop aboard Camp Leatherneck supporting all the Military branch services and civilian contractors with over 1,500 fully assembled tires and hasty tire repairs.
- Personally executed and directed the conduct of motor stables for more than 160 Combat Logistics Patrols for over 2,200 motor transport vehicles. Over 250 of these were United States Army vehicles.
- Supervised the opening and submission of over 450 ERO for combat deadline motor transport vehicles into the maintenance cycle to return them to an operational status. At one point, the Battalion was at risk of being unable to accomplish its mission due to the drastic state of readiness. I led the Marines through an intense 24-hour period, making hasty repairs to critical vehicles by repairing broken parts, and even fabricating some parts. This creative approach, combined with determination, allowed me to bring 13 vehicles back to operational status, which would otherwise have had to wait for parts to be delivered.
- Performed all tasks as Maintenance Quality Control. Personally responsible for the conduct of over 570 Limited Technical Inspections.
Maintenance Chief/safety Representative
United States Marine Corps
01.2006 - 02.2009
- Executed the battery's Motor-T embarkation plan for the annual training period aboard Camp Lejeune, NC in June 08.
- Trained and upgraded belts for over 60 Marines in the Marine Corps Martial Arts Program during the annual training period.
- Participated in the Safety Inspection resulting in the battery achieving a 95% compliance score.
- Supervised the execution of numerous convoys for the battery and battalion live-fire exercises traveling a total of 810 miles, with zero vehicles failures.
- Managed, monitored, and maintained over 42 pieces of equipment/vehicles inducted into the maintenance cycle; resulting in maintaining a 97% mission capability.
- Managed a $30,000 budget and the collection of over 94,133 toys from various collection points throughout 3 counties, across 2 states, benefiting over 328 community organizations in support of the Toys for Tots Foundation.
- Successfully coordinated with outside agencies with all environmental compliance and hazardous materials safety standards resulting in 100% safety compliance.
- Directly responsible for the accurate induction, processing, and Biometric Automated Tool set entry for over 1250 captured enemy detainees brought into the Camp Fallujah Regional Detention Facility (RDF). While executing numerous dangerous detainee release and transfer missions, demonstrated extraordinary character and demeanor while traveling more than 1645 miles by convoy throughout Al Anbar Province.
- Provided technical and tactical insight within the RDF operation contributed to the RDF passing (with outstanding results) over 12 Detention Inspections ranging from Battalion Level Detention Evaluation and Assessment Program Inspections (DEAP) to Multinational Forces-Iraq, Multinational Forces-West, Iraq/Task Force 134, and Combined Forces Land Component Command (CFLCC) Inspections.
- While serving in my primary billet as the Motor Transport Chief for Battery G, I was directly responsible for the operational readiness and maintenance of the unit’s full complement of motor vehicle assets, valued at over $3 million dollars. Additionally, as the supervisor of the armory, I was also responsible for the maintenance, management, and oversight of over 250,000 dollars of armory, optics, and serialized weapons.
Tool control/ Shop Chief
United States Marine Corps
02.2002 - 01.2006
- Led, trained, and mentored a section of over 20 personnel, ensuring tasks were carried out per orders and technical manuals in a safe working environment.
- Managed the processing of 198 service requests through the maintenance cycle and maintained a readiness over 80% for nine months for 77 Motor Transport equipment.
- Returned 36 dead lined Motor Transport to operational status and maintained 97% readiness for six months.
- Supervised the execution of 600 missions resulting in 16,496 accident-free miles, transporting over 442K pounds of cargo and over 12K personnel to support six exercises.
Education
High School Diploma -
Domingo Aponte Collazo
Puerto RicoSkills
- Safe mechanical assembly
- Defect-free mechanical assembly
- Quality checks
- Defect identification
- Rework support
- Standard work
- Documented procedures
- Safety
- PPE compliance
- Hazmat compliance
- Environmental compliance
- Hand tools
- Industrial power tools
- Lean
- Continuous improvement
- LSS Yellow Belt
- Lifting devices
- Safe movement of components
- Shift stamina
- Repetitive tasks
- Lifting up to 35 lbs
Certification
- Respiratory Protection Program Management Course, 03/11/22
- 8-hour Initial Environmental Compliance Course, 04/14/22
- Ground Mishap Investigation/Root Cause Analysis Course, 04/22/22
- Ground Safety for Marines Course, 05/06/22
- Hazardous Substance Incident Response Management Course, 06/29/22
- Lean Six Sigma Yellow Belt Training, 06/30/22
- Fall Protection and prevention Training, 03/16/23
- Radiation Safety Manager course, 03/22/23
- SCRUM Master, 03/28/24
Personal Information
Title: Caterpillar Product Assembler I
Awards
- Navy and Marine Corps Commendation Medal
- Navy and Marine Corps Achievement Medal
Technical Competencies - Software
- Microsoft 365
- Microsoft SharePoint Online
- Microsoft Teams
- Windows Server
Summary Qualifications
Marine Corps Veteran with 23 years in maintenance/production environments. Known for safe, defect-free work, strict procedure compliance, and strong attention to detail. Hands-on experience with hand tools and industrial power tools, troubleshooting mechanical systems, and performing quality checks to verify work to standard. Lean Six Sigma Yellow Belt trained; ready to support Caterpillar (Clayton, NC) with repetitive assembly/adjustment work, safety-first execution, and continuous improvement.
Timeline
Motor Transport Maintenance Team lead Instructor
United States Marine Corps
11.2017 - 07.2021
Quality Control chief/Maintenance Chief/Supervisor CLB-8
United States Marine Corps
02.2009 - 11.2012
Maintenance Chief/safety Representative
United States Marine Corps
01.2006 - 02.2009
Automotive Technician/Motor Transport
United States Marine Corps
03.2002 - 01.2025
Tool control/ Shop Chief
United States Marine Corps
02.2002 - 01.2006
High School Diploma -
Domingo Aponte Collazo