Epifanio Ortiz
Humble,TX
Summary
Experienced bus and heavy equipment technician with strong engine diagnostics, electrical troubleshooting, and air system repair skills. Proven background in preventive maintenance, brake inspection, and diagnostic software for fleet reliability.
Overview
24
24
years of professional experience
Work History
Bus Technician A
Metropolitan Transit Authority - METRO
Houston, TX
03.2022 - Current
- Diagnosed engine, electrical, and air system faults on METRO vehicles.
- Performed advanced troubleshooting and diagnostic procedures to find root causes and devise corrections.
- Replaced defective parts by removing worn components and installing new ones according to established safety procedures.
Field Service Technician
Caterpilliars/Sitech-SETX
Houston, TX
03.2018 - 03.2022
- Installed Sitech machine control systems on Caterpillar equipment to enhance operational efficiency at customer locations.
- Diagnosed electrical and hydraulic faults using service manuals and test equipment.
- Calibrated GPS grade control and machine guidance components to ensure precise performance and compliance with specifications.
- Repaired wiring harnesses, sensors, and connectors on heavy equipment.
- Trained operators on system use, safety checks, and basic troubleshooting to promote safe and effective equipment operation.
Techncian A
Swift Transportation
Houston, Texas
03.2014 - 03.2017
- Performed preventive maintenance on Swift Transportation tractors and trailers to keep equipment ready for service.
- Diagnosed diesel engine electrical faults and air system issues to support reliable operation.
- Serviced and repaired brakes, exhaust systems, and transmissions to improve vehicle safety and performance.
- Repaired brakes, suspensions, and steering components on fleet equipment to support safe operation.
- Maintained accurate repair, inspection, and service records to support compliance and maintenance tracking.
Petroleum Supply Specialist
Army
Killeen, Texas
03.2003 - 10.2012
- Managed Army petroleum receipt, storage, and issue operations across fuel sites.
- Inspected fuel containers, tanks, and equipment for leaks and safety hazards.
- Sampled petroleum products for quality checks and contamination control.
- Maintained petroleum storage areas, hoses, valves, and dispensing systems.
- Operated successfully under wide range of lighting, weather and stress conditions to complete missions.
Education
High School Diploma -
Ashbrook Highschool
Gastonia, NC05-2002
Basic Leader Course
Ft Bliss TX 03-2009
Some College (No Degree) - Auto,Diesel And Cummins Certification
Universal Technical Institute
Houston, TXSkills
- Engine diagnostics
- Electrical troubleshooting
- Air system repair
- Brake inspection
- Diagnostic software
- Preventive maintenance
- Customer service
- Problem-solving
- Critical thinking
- Schematic reading
Accomplishments
- Army Commendation Medal
- Army Achievement Medal
Timeline
Bus Technician A
Metropolitan Transit Authority - METRO
03.2022 - Current
Field Service Technician
Caterpilliars/Sitech-SETX
03.2018 - 03.2022
Techncian A
Swift Transportation
03.2014 - 03.2017
Petroleum Supply Specialist
Army
03.2003 - 10.2012
High School Diploma -
Ashbrook Highschool
Basic Leader Course
Some College (No Degree) - Auto,Diesel And Cummins Certification
Universal Technical Institute