Mario Cortez
Los Angeles,CA
Summary
Skilled Automotive Technician with four years of experience in diagnosing, repairing, and maintaining both traditional and electric vehicles, including hands-on expertise with Rivian electric vehicles. Proficient in using advanced diagnostic tools and technologies to identify and resolve complex mechanical, electrical, and high-voltage issues in both combustion and electric-powered systems. Extensive experience with routine maintenance, engine repairs, brake systems, suspension work, and specialized EV components such as battery management and charging systems. Known for delivering high-quality service while adhering to safety protocols and industry standards. Dedicated to continuous learning, staying current with emerging automotive technologies, particularly electric vehicles, to ensure exceptional vehicle performance and customer satisfaction.
Overview
8
8
years of professional experience
1
1
Certification
Work History
First-Line Supervisor for Administrative Section, Deployment Options
USMC
01.2019
- Managed accountability and 100% accuracy reporting for 87 personnel during military operations while at sea.
- Learned duties associated with job title from observational awareness, under minimal supervision or assistance.
- Performed daily under high stress and pressured environment, creating high standards for achieving promotions.
- Coordinated multiple travel events while at sea for critical mission operations in a timely and efficient manner. Received Hardcharger of the Month Award - recognized by the Captain of the ship for outstanding performance.
Lead Administrative Specialist
United States Marine Corps (USMC)
01.2018 - 11.2021
- Maintained personnel accountability daily for 300+ employees, reporting accurate details to senior leaders.
- Developed a course of action to manage the travel and credit card program for over $5M of official military training and operations.
- Mentored and trained 5 peers ahead of promotion to First-Line Supervisors allowing them to make sound and timely decisions working under pressure with efficiency.
- Meritoriously Promoted ahead of colleagues to Team Leader from increased performance and outstanding display of knowledge, skills, and abilities.
- Accomplishment: Navy and Marine Corps Achievement Medal - Awarded for outstanding and excellent performance holding the responsibilities of a higher job title with years of experience, as a Junior Associate being the Senior Advisor in the Administrative Department, while managing proper accountability and travel coordination for 87 clients simultaneously performing Military operations and training at sea.
- Accomplishment: Marine of the Month - Recognized by the Director of the organization, as the “most motivated and hardworking” Marine for the month of November 2019. Selected out of 300 service members within the organization.
Lube Technician
Jiffy Lube
11.2021 - 03.2022
- Basic maintenance such as Oil changes, Brakes, Cooling system service, Tire Rotations.
- Greet customers in a respectful and timely manner. Recommend services the vehicle requires to the customers.
- Look up manufacturer specifications on Electronic Service Manuals.
Field Service Technician
Rivian
El Segundo, CA
06.2022 - 11.2025
- Checking CAN systems. Breakout harnesses CAN Hi, CAN low
- Basic ground and power checks with DMM
- Diagnosing vehicles utilizing Quest Nodes
- How to Read electrical schematics for Rivian
- Utilizing service procedures
- Dashboards, Reading low and high fidelity signals
- Firmware issues how to read Firmware Logs
- Utilizing UDS to ping and communicate with Modules within the vehicle and check status as well as firmware level.
- Clearing safe states
- Diagnosing HV battery issues
- ADAS calibrations
- Vehicle alignments
- Diagnosing Isolation Issues
- Drive Unit Replacements
- Battery Packs
- Suspension components
- Subframe replacements
- Bumper to Bumper certified
- Windshield, Roof Glass Replacements
Waymo Autonomous Vehicle Advanced Technician
AutoNation
Santa Monica, CA
11.2025 - Current
- Diagnosed vehicle issues using advanced diagnostic tools and software to ensure accurate repairs.
- Assisted in installation and maintenance of lidar, radar, and ultrasonic sensors. Supported teams in interpreting complex wiring schematics. Contributed to troubleshooting and resolving sensor-related issues.
- Executed high voltage diagnostics and repairs to ensure system reliability.
- Executed low voltage diagnostic assessments to identify and resolve electrical issues.
- Full self driving diagnostics
- Importing logs
- Bumper to bumper repairs
- Jaguar based electric vehicles
- Electric power train diagnostics and repairs
- Assisted engineering teams in completing projects on schedule and within budget. Supported collaboration efforts to enhance communication and workflow. Contributed to problem-solving initiatives to improve project outcomes.
- Conducted routine maintenance and inspections to uphold vehicle performance standards.
- Collaborated with team members to streamline workflow and enhance service efficiency.
- Mentored junior technicians on repair procedures and safety protocols to improve skill levels.
Education
Automotive Technician
Universal Technical Institute
Long Beach, CAundefined
UEI College
Gardena, CA11.2024
High School Diploma - undefined
Animo Pat Brown Charter High School
Los Angeles, CA06.2017
Skills
- Prioritized and organized diverse activities to meet deadlines and support team objectives
- Managed project timelines and deliverables to ensure alignment with organizational goals
- Achieved high customer satisfaction ratings through effective resolution of inquiries and complaints Enhanced service delivery by streamlining processes and improving team collaboration Fostered positive customer relationships, resulting in increased retention rates
- Monitored project progress and ensured adherence to accountability standards within the team
- Executed tasks with a focus on thoroughness and precision, minimizing errors and maximizing efficiency
- Monitored and enforced document confidentiality practices to protect proprietary information
Certification
- Single Marine Program Organization Coordinator 2020
- Substance and Drug Abuse Observer, USMC 2020
- Gray Belt Martial Arts Belt, USMC 2019
- Legal Clerk, USMC 2019
- Administrative Specialist/Supervisor, USMC 2018
- 609 Certification 2022
- Automotive Technology 2022
- High Voltage Certification 2022
- ADAS Calibration Certification 2022
TRAINING & LEADERSHIP ACTIVITIES
- Leading Marines- Enlisted Military Professional Education, USMC 10/04/2018
- Developed the fundamentals of leadership with a focus on applying techniques in the work environment. Instructions during this course included audio and visual material, computer-based training, lectures, and practical exercises.
- Legal Clerk Course (Honor Graduate), USMC 11/1/2019
- Obtained proper skills and knowledge on pre-trails and post trials procedures; unauthorized absence policies and procedures; understand military justice court system; and know the different types of court martials and procedures.
Languages
English
Full Professional
Spanish
Full Professional
Timeline
Waymo Autonomous Vehicle Advanced Technician
AutoNation
11.2025 - Current
Field Service Technician
Rivian
06.2022 - 11.2025
Lube Technician
Jiffy Lube
11.2021 - 03.2022
First-Line Supervisor for Administrative Section, Deployment Options
USMC
01.2019
Lead Administrative Specialist
United States Marine Corps (USMC)
01.2018 - 11.2021
Automotive Technician
Universal Technical Institute
undefined
UEI College
High School Diploma - undefined
Animo Pat Brown Charter High School