Summary
Overview
Work History
Education
Skills
Certification
Timeline
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David Hernandez

RENO

Summary

Highly skilled Field Technical Specialist and heavy duty technician with 10+ years of experience in diagnostics, repair, and maintenance of heavy-duty commercial vehicles and electric vehicle systems. Strong expertise in electrical troubleshooting, advanced diagnostics, and mobile service operations. Proven leader with experience managing shop operations and independently maintaining large fleets.

Overview

13
13
years of professional experience
1
1
Certification

Work History

SEMI FIELD TECHNICAL SPECIALIST

Tesla
Sparks, NV
09.2020 - Current
  • Advanced diagnostics and repair on EV systems including high-voltage components
  • Utilize proprietary diagnostic software for system troubleshooting
  • Provide mobile field service reducing downtime
  • Build articles for service technicians
  • Assist in the development of Semi Service
  • Support engineering testing in driving or repairing vehicles in remote locations or in extreme weather.

FLEET SERVICE TECHNICIAN

Aramark Uniform Services
Fresno, CA
01.2018 - 01.2020
  • Maintained fleet vehicles ensuring operational readiness
  • Performed inspections and preventative maintenance
  • Supported logistics and minimized service interruptions

DIESEL TECHNICIAN / SHOP LEAD

Ryder Truck Rental
03.2013 - 09.2018
  • Diagnosed and repaired heavy-duty trucks and trailers
  • Led technicians and assigned work
  • Independently maintained fleet of 55 trucks
  • Performed preventative maintenance and inspections
  • Reaper trailer reefers systems
  • Managed customer service and provided them with reports of their units

Education

Advanced Diesel Technology Diploma -

WyoTech
Laramie, WY
01-2013

Skills

  • Advanced Diagnostics & Troubleshooting
  • High-Voltage (HV) & EV Systems
  • CAN Bus Systems
  • Diesel Engines
  • Brake Systems
  • Suspension
  • Preventative Maintenance
  • Mobile Service
  • OEM Diagnostic Tools
  • DOT Compliance
  • Fleet Management

Certification

Class A CDL

Timeline

SEMI FIELD TECHNICAL SPECIALIST

Tesla
09.2020 - Current

FLEET SERVICE TECHNICIAN

Aramark Uniform Services
01.2018 - 01.2020

DIESEL TECHNICIAN / SHOP LEAD

Ryder Truck Rental
03.2013 - 09.2018

Advanced Diesel Technology Diploma -

WyoTech