MASEN GONZALES
Aurora,USA
Summary
Dedicated professional focused on exceptional service and strong customer relationships. Expertise in trailer and tractor repairs, ensuring optimal performance through efficient maintenance and diagnostics. Proven track record in diesel engine repair, electrical troubleshooting, and preventive maintenance. Strong critical thinking and problem-solving skills enhance team collaboration and solution delivery.
Overview
15
15
years of professional experience
1
1
Certification
Work History
Tractor Trailer Mechanic
Navajo Express
Denver, Colorado
11.2025 - Current
- Diagnosed mechanical issues in tractor trailers with precision and efficiency.
- Utilized diagnostic tools for accurate identification and troubleshooting of engine problems.
- Conducted routine maintenance and repairs on heavy-duty vehicles, ensuring optimal performance and minimizing downtime.
- Implemented preventative maintenance schedules, proactively enhancing vehicle reliability and reducing unexpected repairs.
- Performed inspections to verify vehicle safety and compliance with regulations.
- Collaborated with team members to streamline repair processes and improve workflow efficiency.
- Maintained comprehensive records of repairs and services performed on each vehicle.
- Trained junior mechanics on best practices and safe repair techniques consistently.
Mobile Mechanic - Owner/Operator
Mister Mile High Mobile Mechanic
Aurora, CO
08.2022 - 07.2024
- Provide comprehensive on-site mechanical services including engine rebuilds, transmission repair, brake service, and diagnostics
- Rebuilt engines following manufacturer specifications and service manual guidelines ensuring optimal performance
- Diagnose complex mechanical and electrical issues using advanced diagnostic equipment and technical knowledge
- Replace worn components including belts, hoses, filters, spark plugs, radiators, and exhaust systems
- Test drive trains for performance issues and complete necessary repairs to restore proper functionality
- Conduct routine maintenance services including oil changes, tire rotations, and preventative inspections
- Estimated costs for repairs and communicated needs to customers before starting work
- Document all services and repairs on detailed work orders maintaining comprehensive service records
- Perform road tests to diagnose needed repairs and verify completed work meets quality standards
- Developed partnerships with parts suppliers to improve service efficiency and reduce costs
- Built customer base through reliable service and honest communication, resulting in high customer retention
- Managed business operations including scheduling, inventory, invoicing, and customer relations to ensure seamless service delivery
- Established and operate successful mobile automotive repair business serving Aurora and surrounding communities
Automotive Diesel Technician
TA Travel Center
Commerce City, CO
10.2018 - 08.2022
- Diagnosed and repaired diesel engines on commercial fleet vehicles ensuring optimal performance and reliability
- Conducted comprehensive routine maintenance checks identifying potential issues to enhance vehicle longevity and safety
- Tore down, repaired, and rebuilt faulty assemblies including power systems, steering systems, and linkages
- Utilized advanced diagnostic tools to assess engine systems and provide accurate solutions for complex mechanical problems
- Implemented preventative maintenance schedules reducing fleet downtime and enhancing operational readiness
- Trained junior technicians on repair best practices and safety protocols fostering knowledgeable team environment
- Replaced worn or damaged parts with new or reconditioned components per manufacturer specifications
- Repaired and replaced defective wiring harnesses using specialized tools and soldering equipment
- Troubleshot electrical systems including starters, alternators, batteries, and climate control components
- Completed preventive maintenance including oil changes, tire rotations, brake services, and fluid system checks
- Aligned wheels and steering mechanisms using precision alignment equipment and wheel-balancing machines
- Reviewed and prioritized assigned work orders coordinating workflow to meet quoted deadlines efficiently
- Communicated effectively with customers regarding service needs building trust through transparent repair processes
Heavy Equipment Operator
J2 Contracting
Greeley, CO
08.2017 - 10.2018
- Operated excavators, dozers, front-end loaders, and backhoes with precision on construction sites
- Executed earthmoving tasks efficiently minimizing project delays and maintaining schedule adherence
- Conducted routine maintenance checks on equipment enhancing operational reliability and safety standards
- Collaborated with team members to coordinate tasks and optimize workflow on active job sites
- Monitored site conditions and adjusted operations in response to changing environmental factors
- Implemented safety measures reducing equipment downtime and improving overall job site efficiency
HVAC Technician
Heatmiser
Denver, CO
02.2013 - 07.2017
- Diagnosed and repaired residential and commercial HVAC systems enhancing operational efficiency and equipment lifespan
- Conducted routine inspections and preventative maintenance on heating and cooling units across diverse properties
- Installed new HVAC equipment while adhering to safety protocols and industry best practices
- Installed air and water filters, compressors, and condenser units ensuring proper system functionality
- Collaborated with team members to troubleshoot complex HVAC issues, reducing response times and enhancing service quality
- Read blueprints and technical diagrams for accurate installation and system design implementation
- Executed sheet metal fabrication and ductwork installation, ensuring compliance with safety standards and operational requirements
- Developed training materials for junior technicians to support skills development and knowledge sharing
Automotive Mechanic
Big O Tires
Aurora, CO
01.2011 - 11.2013
- Repaired and replaced engines, transmissions, brakes, suspension systems, and electrical components
- Diagnosed and repaired vehicle issues using diagnostic tools, enhancing performance and ensuring customer satisfaction
- Identified necessary repairs through visual inspections and diagnostic tests, ensuring vehicle safety and reliability
- Conducted routine maintenance on various vehicles adhering to safety protocols and manufacturer specifications
- Maintained detailed records of repairs and services, facilitating effective customer service
- Collaborated with team members to streamline repair processes improving workflow efficiency
Education
High School Diploma -
Smoky Hill High School
Aurora, CO01-2011
Some College (No Degree) - Automotive Engineering
Lincoln College of Technology
Denver, CO04-2026
Skills
- Engine rebuilds and repair
- Diesel diagnostics
- Transmission service
- Air Brake systems
- Abs diagnosis
- Steering mechanisms
- Electrical systems
- Drive train repair
- Climate control systems
- Exhaust systems
- System installation
- Diagnostics and repair
- Preventive maintenance (DOT's)
- Diagnostic scanners
- Wheel alignment systems
- Heavy equipment operation
- Welding techniques
- Hand and power tools
- Client support services
- Task prioritization
- Problem solving
Certification
- Heavy Equipment Operator
Timeline
Tractor Trailer Mechanic
Navajo Express
11.2025 - Current
Mobile Mechanic - Owner/Operator
Mister Mile High Mobile Mechanic
08.2022 - 07.2024
Automotive Diesel Technician
TA Travel Center
10.2018 - 08.2022
Heavy Equipment Operator
J2 Contracting
08.2017 - 10.2018
HVAC Technician
Heatmiser
02.2013 - 07.2017
Automotive Mechanic
Big O Tires
01.2011 - 11.2013
High School Diploma -
Smoky Hill High School
Some College (No Degree) - Automotive Engineering
Lincoln College of Technology