MARK CRISOSTOMO
Summary
Highly accomplished and decorated Retired U.S. Army First Sergeant (E-8) with 27 years of distinguished military service , including 11 years as a First Sergeant . Proven leader with expertise in personnel management, operations, training, logistics, and mission readiness. Adept at mentoring, developing, and leading diverse teams to success under high-pressure environments. Exceptional ability to improve operational efficiency, enforce discipline, and drive mission success. Seeking to leverage extensive leadership experience in a challenging civilian role.
Overview
23
23
years of professional experience
Work History
Buyer Supervisor II
Guam Department Of Education
08.2023 - Current
- Achieved cost savings by negotiating with suppliers and analyzing market trends.
- Monitored results of department through inspection, evaluation and analysis.
- Streamlined purchasing processes for increased efficiency and reduced order lead times.
- Provided training and mentoring for junior team members, improving their skills and increasing overall departmental productivity.
- Evaluated vendor proposals to select the most cost-effective options for the organization.
- Supervised 13 Staff members in Procurement Activities, including purchasing, inspections, supply cataloging.
- Supervised the difficult negotiations for the procurement of services, supplies, materials, and construction.
- Screens all incoming requisitions to determine which requisitions are to be procured through Formal or Informal Bids.
- Processed over 15 Formal bids to include Request for Proposals and Invitations for Bids.
- Developed strong relationships with vendors to ensure timely delivery and quality products.
Fleet Maintenance Manager
Guam Pak Express
06.2022 - 03.2023
- Recruited, interviewed and hired two employees and implemented mentoring program to promote positive feedback and engagement.
- Trained 25 drivers and four mechanics on proper vehicle inspections; reduced vehicle breakdowns and time loss.
- Established and documented protocols for preventive maintenance procedures, decreasing equipment issues, and reducing downtime.
- Successfully managed budgets and allocated resources to maximize productivity and profitability.
- Enhanced fleet efficiency by implementing preventive maintenance programs and monitoring vehicle performance.
- Implemented inventory control systems for parts and supplies, minimizing waste and optimizing stock levels.
Community Outreach Coordinator
Office of the Homelessness and Poverty Prevention
01.2022 - 05.2022
- Conducted community workshops to promote different programs and educate public on available services.
- Assessed community needs and identified resources for social and community service programs.
- Connected over 50 homeless families and individuals with available and relevant resources.
- Worked closely with organizational leadership and board of directors to strategically affect operational direction.
Transportation Supervisor
Guam Regional Transit Authority
07.2017 - 12.2021
- Established Coalition Transit Center by providing services to the homeless population and Veteran's of Guam; serviced over 250 riders in six months.
- Supervised daily operations, preventive maintenance of 23 buses and vans; resulted in few breakdowns.
- Managed all aspects of daily delivery, including routing, driver supervision and DOT compliance.
- Coordinates with other agency representatives regarding transportation requirements.
- Directed activities of staff performing repairs and maintenance to equipment, vehicles, and facilities.
- Prepared and updated employees' daily work schedules and resolved delivery problems.
- Administers programs and activities of Bus Operations.
- Implemented of social distancing and mask requirements; conducted on-the-spot corrections to ensure the safety of riders are not compromised.
- Closely monitored operations and performed regular safety audits for adherence to administrative policies and compliance regulations.
- Attended weekly meetings with executive leadership to identify opportunities for improvement, establish milestones and tailor products to individual markets.
- Coordinated with local Military Installation Commanders to gain access into Military Hospitals for Veteran's needing medical assistance.
- Single-handedly planned and resourced the Southern Route cutting travel time by 30 minutes.
- Managed a million dollar maintenance contract without fail.
- Communicated all emergencies, delays due to weather and carrier schedule changes to customers and supervisors.
Expediter
HSG CO LTD
03.2017 - 07.2017
- Prepared and maintained inventory records for construction equipment valued in excess of 500,000 dollars.
- Distributed supplies to skilled workers to maintain job site productivity.
- Performed preventive maintenance of Power Generators ranging from 3kw to 60kw, Compactors, and power tools.
- Completed logs and reports detailing production data such as volume, materials used and quality assurance results, helping management make accurate operational decisions.
Truck Driver
S & N Enterprises Inc.
03.2016 - 08.2016
- Primary operator for 10 Ton International Hauler; recorded over 3,000 miles accident/citation free.
- Transported and delivered roll-off tanks, dewatering and vacuum containers; 100% customer satisfaction.
- Met customer delivery schedules and ensured accurate billing for services provided.
- Performed troubleshooting and maintenance on assigned vehicle; minimized downtime and maintenance obligations.
Operations Supervisor
UNITED STATES ARMY
05.2015 - 02.2016
- Coordinated internal and external transportation assets to fulfill scheduled and unscheduled priorities.
- Designed a large scale motor park to accommodate over 100 vehicles with safe maneuvering distances.
- Conducted daily meetings on ongoing assignments, statuses and repair parts needed to accomplish assigned tasks.
- Planned and executed a 220 personnel security force protecting high value targets within the installation; recognized by Department of Emergency Services as having best security operations.
- Created plans and communicated deadlines to ensure projects were completed on time.
- Actively listened to customers, handled concerns quickly and escalated major issues to supervisor.
Senior Advisor
UNITED STATES ARMY
10.2013 - 05.2015
- Led a comprehensive safety training for 101 maintenance technicians.
- Directed logistical training procedures in accordance with military, federal and state regulations.
- Maintained compliance with company requirements.
- Conducted routine safety inspections ensuring safety was adhered to.
- Implemented an "Out the gate" dispatch and safety inspection program reducing breakdowns and unlawful operations.
First Sergeant
UNITED STATES ARMY
12.2012 - 09.2013
- Directed tactical operations in complex and challenging environments.
- Maintained clean and well-organized production areas to avoid violations or unnecessary work delays due to hazards or inefficient layouts
- Directed collection, organization and application of field intelligence and combat data to enhance troop safety and operational success.
- Communicated with command centers to develop and execute tactical plans.
- Monitored and assessed mission progress and provided updates to command.
- Handled administrative requirements, maintained records and submitted operational reports.
Operations Manager
UNITED STATES ARMY
03.2010 - 11.2012
- Interacted well with subordinates and superiors to build connections and nurture relationships.
- Managed the Forward Support Companies Certification Program; certified four companies in eight weeks prior to activation.
- Served as the Lead trainer for the Junior Leader Certification Program; trained and certified over 50 Junior Enlisted Leaders and Officers.
- Supervised operations team to support operational excellence and excellent customer service.
- Responsible for the health, welfare, professional development and training of Eight Staff members.
- Led and trained the Battalion's Color Guard; flawless execution at numerous events and invitations.
First Sergeant
UNITED STATES ARMY
06.2008 - 02.2010
- Monitored and assessed mission progress and provided updates to command.
- Communicated with command centers to develop and execute tactical plans.
- Executed tactical operations with accuracy and control.
- Trained and mentored personnel in combat operations and tactics.
- Managed and executed 300+ logistics convoys with a flawless safety record , delivering critical supplies under complex conditions.
Senior Maintenance Supervisor
UNITED STATES ARMY
06.2005 - 04.2008
- Tracked and managed department costs for good budget adherence.
- Coordinated preventative maintenance schedules, verifying equipment safety and function.
- Provided guidance to management regarding project bids for onsite improvements.
- Negotiated pricing and terms with vendors to secure best value for company.
- Reduced costs by streamlining contract bidding and procurement processes to assure best prices for materials and services.
- Contributed to the development of organizational policies related to procurement and contracting, ensuring alignment with industry standards and federal regulations.
- Minimized potential delays in contract execution by proactively identifying and addressing any roadblocks or challenges throughout the contracting lifecycle.
Platoon Sergeant
UNITED STATES ARMY
06.2002 - 06.2005
- Served as principal advisor to First Sergeant and Commander.
- Oversaw teams planning, implementing and realigning field and base operational strategies.
- Directed tactical operations in complex and challenging environments.
- Implemented necessary safety practices, proper firing commands and proper ammunition handling.
- Selected to be Company First Sergeant over entire class during the Senior Leaders Course.
Education
Associate of Arts - Applied Technology
CENTRAL TEXAS COLLEGE
Tacoma, WA2015
Skills
- Strategic Planning
- Operational Flow Management
- Effective Organization
- Microsoft Office Proficiency
- Time Management
- Guam Procurement Law Module 1
- Collaborative Teamwork
- Analytical Problem-Solving
- Meticulous Attention
- Class Facilitation
- Adaptable teaching approach
- Classroom management
- Strong communication skills
- Critical thinking
Timeline
Buyer Supervisor II
Guam Department Of Education
08.2023 - Current
Fleet Maintenance Manager
Guam Pak Express
06.2022 - 03.2023
Community Outreach Coordinator
Office of the Homelessness and Poverty Prevention
01.2022 - 05.2022
Transportation Supervisor
Guam Regional Transit Authority
07.2017 - 12.2021
Expediter
HSG CO LTD
03.2017 - 07.2017
Truck Driver
S & N Enterprises Inc.
03.2016 - 08.2016
Operations Supervisor
UNITED STATES ARMY
05.2015 - 02.2016
Senior Advisor
UNITED STATES ARMY
10.2013 - 05.2015
First Sergeant
UNITED STATES ARMY
12.2012 - 09.2013
Operations Manager
UNITED STATES ARMY
03.2010 - 11.2012
First Sergeant
UNITED STATES ARMY
06.2008 - 02.2010
Senior Maintenance Supervisor
UNITED STATES ARMY
06.2005 - 04.2008
Platoon Sergeant
UNITED STATES ARMY
06.2002 - 06.2005
Associate of Arts - Applied Technology
CENTRAL TEXAS COLLEGE
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