- Martial Arts
- Gym Workouts
- High-Intensity Interval Training
- Swimming
- Passionate about balancing physical health with mental and emotional wellness
- Adventure Travel
- Hiking
- Camping
- Running
Demarco Castillo
San Clemente,CA
Summary
Holds a lead role in project coordination and execution, with proven experience leading small teams in high-pressure, fast-paced environments. Skilled in critical thinking, problem-solving, and adapting quickly to changing conditions while maintaining clear communication with senior leaders and team members. Known for executing missions with precision, managing risk, and driving team performance under stress.
Overview
5
5
years of professional experience
1
1
Certification
Work History
Team Leader
United States Marine Corps
11.2022 - Current
- Led, trained, and mentored a fire team of Marines, ensuring operational readiness, discipline, and adherence to mission objectives in high-pressure environments.
- Planned and executed tactical operations, coordinating movement, security, and communications to accomplish complex missions safely and effectively.
- Supervised daily training, drills, and evaluations, improving team performance, technical proficiency, and compliance with standards.
- Managed accountability, maintenance, and operational readiness of weapons, equipment, and sensitive gear, ensuring 100% serviceability.
- Conducted risk assessments and enforced safety protocols to minimize injuries and mission disruptions during live-fire exercises and field operations.
- Communicated effectively with leadership and team members, providing clear instructions, situation reports, and after-action reviews.
- Demonstrated decisive leadership under stress, adapting to rapidly changing conditions while maintaining mission focus and team morale.
- Supported new personnel integration through coaching, performance feedback, and professional development.
- Led fire team operations during field training exercises and deployments, executing patrols, security operations, and tactical movements in austere environments.
- Made rapid, sound decisions under physical and mental stress to adapt to changing operational conditions while maintaining team safety and mission success.
- Conducted land navigation, terrain analysis, and route planning to ensure timely and secure movement across complex terrain.
- Coordinated security, communication, and accountability during extended field operations with limited resources.
- Supervised continuous operations, including watch rotations, defensive positions, and patrol schedules, maintaining operational effectiveness over extended periods.
- Executed rehearsals, briefings, and after-action reviews to improve team performance and identify operational improvements.
Sales Associate
Perpetuals Remodeling
10.2021 - 02.2022
- Assisted customers in selecting remodeling products to enhance satisfaction and drive sales.
- Collaborated with team members to streamline checkout processes and improve customer service efficiency.
- Educated clients on product features, benefits, and installation processes to facilitate informed purchasing decisions.
- Led client consultations to deliver customized flooring solutions aligned with budget, design, and performance requirements
- Identify and prospect new clients through targeted outreach, cold calling, and lead qualification
- Present tailored solutions and conduct product demonstrations to address client needs and business objectives
- Negotiate terms, close sales, and consistently meet or exceed revenue targets
- Build and maintain long-term client relationships to drive repeat business and upselling opportunities
Team Member
Whatabuger
02.2021 - 10.2021
- Assisted in food preparation and assembly for customer orders.
- Provided excellent customer service, addressing inquiries and resolving issues promptly.
- Maintained cleanliness and organization of workstations to ensure safety standards.
- Maintained exceptional cleanliness and organization standards across kitchen, prep, and service areas to ensure food safety, operational efficiency, and compliance with company policies
- Adapted seamlessly across multiple stations based on business needs, supporting peak service periods and maintaining consistent service quality
- Consistently followed production standards, recipes, and order accuracy procedures to exceed quality and speed-of-service expectations
- Proactively identified and resolved safety, cleanliness, and workflow issues to support a safe and efficient work environment
- Demonstrated strong initiative by exceeding job expectations and contributing to continuous operational improvement
- Built and maintained positive working relationships with team members and management to support a collaborative, high-performing team culture
Team Leader
Marco's Pizza
08.2020 - 02.2021
- Supervised daily operations to ensure high-quality food preparation and customer service standards.
- Trained and mentored team members on efficient pizza-making techniques and safety protocols.
- Implemented inventory management procedures to optimize stock levels and reduce waste.
- Coordinated staff schedules to maintain adequate coverage during peak hours for improved service efficiency.
- Promoted to Team Leader in recognition of strong performance, leadership capability, and consistent delivery of exceptional customer service
- Directed daily shift operations by delegating tasks and assigning responsibilities based on team members’ strengths to maximize productivity and speed of service
- Mentored and trained new hires on equipment operation, food preparation standards, and safety procedures to ensure compliance and prevent workplace injuries
- Conducted routine equipment inspections before, during, and after shifts to prevent downtime, maintain operational continuity, and resolve issues proactively
- Motivated, coached, and empowered team members to deliver high-quality service, driving customer satisfaction, loyalty, and team retention
- Prepared and delivered monthly, quarterly, and annual performance reports to management, supporting operational decision-making and continuous improvement
- Fostered a positive, high-performing team culture through clear communication, training, and ongoing development coaching
- Allocated labor and resources effectively while organizing workflows to improve efficiency, productivity, and order accuracy
- Maintained clean, organized, and hazard-free work areas to meet safety, health, and company standards
Education
High School Diploma -
Cypress Lakes High School
Katy, TX05-2022
Skills
- Teamwork and collaboration
- Problem-solving
- Attention to detail
- Team motivation
- Leadership & Team Supervision
- Operations & Project Planning
- Safety & Risk Management
- Emergency Response & First Aid
- Security Awareness & Cyber Safety
- Tactical & Field Operations
- Logistics & Transportation
- Training & Personnel Development
- Administrative & Records Management
- Physical Fitness & Self-Defense
Accomplishments
- Enforced Marine Corps standards for fitness, discipline, and professionalism
- Ensured team readiness through continuous training and performance tracking
- Responsible for personnel safety, weapons accountability, and equipment worth tens of thousands of dollars
- Enforced weapons, vehicle, and operational safety procedures
- Responded to training environment emergency situations and injuries using military first aid and casualty care
- Completed Marine Corps Leadership Schools (Leading Marines, Corporals Course, Leadership I & II)
- Trained in operations planning, tactical tools, and leadership development
- Earned multiple Marine Corps Martial Arts Program (MCMAP) belts demonstrating discipline, confidence, and self-control
- Briefed and debriefed platoon leadership on team performance, risks, and mission status
- Delivered clear instructions in stressful and time-critical situations
- Coordinated with adjacent teams and leaders to ensure mission alignment and efficiency
Certification
Leadership & Professional Military Education (PME) Certificates
- Leading Marines – Distance Education Program
- Corporals Course (DEP)
- Leadership I
- Leadership II
- Fire Team Operations
- Tactical Planning
- Operations
- Communications
- Administration
- Tactical Tools
Certifications to formally train and lead Marines, plan missions, and manage teams at the Non-Commissioned Officer (NCO) level
Infantry & Tactical Operations Certificates
- Infantry Patrolling Infantry Squad Leader – Weapons & Fire Support Fire Team Operations
- Land Navigation
- Marksmanship
- Amphibious Embarkation
Certifications to train in combat leadership, movement, weapons employment, and tactical operations
Safety, Emergency & Medical Certificates
- First Aid & Casualty Care Supervisor Safety Training
- CBRN Reconnaissance Operations (Chemical, Biological, Radiological, Nuclear)
- Emergency Situations While Driving
Certifications to demonstrate life-saving skills, hazard awareness, and emergency response training.
Driving & Vehicle Operations Certificates
- Defensive Driving
- Collision Avoidance
- Distracted Driving Prevention
- Urban Driving
- Driver Awareness
- Safe Vehicle Backing
- Incidental Motor Vehicle Operator – HMMWV (Humvee) Certifications to qualify operating vehicles in high-risk and controlled environments.
Security, Cyber & Counter-Terrorism Certificates
- DoD Cyber Awareness
- Joint Anti-Terrorism Level I
- Counterintelligence Awareness & Reporting
Certification training to identify threats, protect information, and report security risks.
Martial Arts & Physical Training Certifications
- Marine Corps Martial Arts Program (MCMAP)
- Tan Belt
- Grey Belt
- Green Belt
- Brown Belt
- Semper Fit Basic Fitness
Certifications for self-defense, discipline, and physical readiness.
Administration, Management & Life Skills
- Records Management
- Advanced Unit Training Management
- Operations Planning
- Planning Your Retirement
- Introduction to Credit
- Debt Management
- Renters & Home Insurance
Certifications to support organization, accountability, and personal financial responsibility.
Interests
Certificate of Commodation
"EXEMPLARY PERFORMANCE WHILE SERVING AS FIRE TEAM LEADER, COMPANY G, 2D BATTALION, 4TH MARINES, IST MARINE DIVISION FROM FEBRUARY 2024 TO MAY 2025, LANCE CORPORAL CASTILLO TOOK PROACTIVE STEPS TO DEVELOP MULTIPLE TERRAIN MODELS, SIGNIFICANTLY ENHANCING THE BATTALION'S ABILITY TO EXECUTE THREE HELICOPTER RAID EXERCISES WITH PRECISION AND EFFECTIVENESS. AS A ROCKETMAN, HE DEMONSTRATED SUPERIOR TECHNICAL SKILLS DURING COMBINED ARMS LIVE FIRE EXERCISE ALONGSIDE THE JAPANESE AMPHIBIOUS RAPID DEPLOYMENT REGIMENT, SUCCESSFULLY NEUTRALIZING TWO ENEMY MACHINE GUN BUNKERS, WHICH ENABLED BOTH ALLIED FORCES AND HIS SQUAD TO DECISIVELY DESTROY ENEMY DEFENSIVE POSITIONS. ADDITIONALLY, LANCE CORPORAL CASTILLO EXHIBITED OUTSTANDING LEADERSHIP DURING THE RIGOROUS 83-HOUR FORCE-ON-FORCE EXERCISE AS PART OF EXERCISE IRON FIST 25, WHERE HE SUCCESSFULLY LED HIS TEAM IN SECURING MULTIPLE LANDING ZONES UNDER DEMANDING CONDITIONS. LANCE CORPORAL CASTILLO'S OUTSTANDING MOTIVATION AND TOTAL DEDICATION TO DUTY REFLECTED CREDIT UPON HIM AND WERE IN KEEPING WITH THE HIGHEST TRADITIONS OF THE MARINE CORPS"
Timeline
Team Leader
United States Marine Corps
11.2022 - Current
Sales Associate
Perpetuals Remodeling
10.2021 - 02.2022
Team Member
Whatabuger
02.2021 - 10.2021
Team Leader
Marco's Pizza
08.2020 - 02.2021
High School Diploma -
Cypress Lakes High School