Christian Fernandez
Escalon
Summary
I started with old castle back in June 2025 I have learned a lot and have made some great relationships with my coworkers. Though recently my living situation has changed and needs a path that compensates more and provides more hours so I can provide and maintain for me and my daughters. I recently learned the maintenance position has opened up and believe I have the drive and skill to fill this role. I have experience in agricultural diesel mechanics Conduct routine inspections, oil changes, and fluid checks to ensure engine performance.
Service brake systems, steering mechanisms, transmissions, and electrical systems. as Qc I have seen the damages and repairs in our facilities and believe I can adapt to learning and becoming a successful Maintenance mechanic.
Overview
11
11
years of professional experience
1
1
Certification
Work History
Quality Control Technician
Oldcastle Infrastructure
Stockton
06.2025 - Current
- Conducted daily pre-pour and post-pour inspections of reinforcing cages, forms, inserts, and finished concrete products to ensure compliance with quality standards.
- Perform daily concrete testing, including compressive strength tests, slump tests, air content, unit weight, and moisture analysis.
- Maintained accurate records of tests and inspections to support adherence to quality procedures and facilitate audits.
- Identified and documented defective products, reported findings to production teams, and collaborated on process improvements and root cause analysis.
Quality Control Technician
jensen infrastructure
Lockeford
07.2024 - 05.2025
- Executed quality inspections on materials and products throughout production processes to ensure adherence to standards.
- Utilized measuring tools to verify compliance with quality standards.
- Recorded test results and organized accurate records for quality control audits to support compliance and traceability.
- Collaborated with production teams to identify and resolve quality issues.
- Supported maintenance of clean and safe work environment by adhering to safety protocols and promoting safety awareness.
- Assisted with training new Quality Control Technicians on proper procedures for inspecting materials and products.
Gas Service Technician
Den Defenders
Stockton
09.2023 - 03.2024
- Explained service procedures and maintenance needs through collaboration with customers.
- Utilized diagnostic tools to identify issues with gas systems effectively.
- Maintained accurate records of service calls and repairs completed.
- Understood client concerns and delivered tailored service solutions through effective communication.
- Troubleshot electrical circuits using schematics and diagrams.
- Installed new systems according to manufacturer specifications.
- Assembled components into complete systems following blueprints or other instructions.
- Provided training on the safe usage of equipment.
- Installed new components or replaced defective parts to restore functionality.
- Diagnosed issues and troubleshot malfunctions to restore equipment functionality efficiently.
- Installed new appliances, wiring and machinery in homes with defective equipment.
- Took measurements and evaluated dimensions of surrounding area to correctly install new machinery.
Lead Transload operator
SAVAGE SERVICES INC
Stockton
08.2022 - 03.2023
- Ensured compliance with safety standards during loading and unloading processes.
- Coordinated daily workflows with team members to optimize transloading operations.
- Switched rail cars within rail yard for product offload into receiving pits.
- Adhered to all applicable federal regulations concerning hazardous materials transportation.
- Tracked shipments using computer systems to enhance visibility across the supply chain.
- Prepared hazardous material shipping documents in accordance with DOT regulations.
- Maintained accurate inventory records of received and shipped materials to support operational efficiency.
- Followed strict safety guidelines while working around heavy machinery and flammable liquids and chemicals at job sites.
- Completed scheduled track inspections to spot broken rails, switch malfunctions and other defects.
- Conferred with conductors and other workers via radiotelephones or computers to exchange switching information.
HVAC Installer/Technician
Star Mechanical
Manteca
04.2022 - 08.2022
- Installed HVAC systems in residential and commercial buildings.
- Collaborated with team members to diagnose and resolve system malfunctions, enhancing overall system reliability.
- Followed safety protocols while handling tools and equipment on job sites.
- Assisted in designing and laying out HVAC ductwork, ensuring optimal airflow and system performance for new installations.
- Educated customers on system operations and maintenance, improving user satisfaction and system longevity.
- Performed installation of residential and commercial HVAC systems, including air conditioning units, furnaces, heat pumps, air handlers, and ductwork.
- Assisted in the fabrication of sheet metal ducts for ventilation systems.
- Connected line and low voltage wiring to heating and cooling systems to facilitate functionality.
- Troubleshot HVAC system issues using appropriate tools and test equipment.
- Pulled electrical wiring for new installations or repairs to existing HVAC systems.
- Maintained safe working environment with proper execution of HVAC guidelines and usage of PPE equipment.
Leak Survey technician
Alisto engineering
Walnut Creek
04.2016 - 07.2019
- Conducted routine surveys of gas transmission and distribution systems to detect leaks, ensuring safety and regulatory compliance using tools such as combustible gas indicators, infrared, or laser devices.
- Responded to gas odor complaints and potential leaks, taking necessary actions to make the area safe, and repairing faulty lines.
- Executed gas turn-ons, shut-offs (up to 2 lbs), and rechecks after pipe installation or maintenance.
- Performing gas appliance part replacements, piping installation, and repairing domestic or commercial gas meter sets.
- Assessed and graded leaks based on severity, ensuring adherence to Department of Transportation (DOT) and California Public Utilities Commission (CPUC) standards to mitigate risks.
- Performing "Locate and Mark" duties, identifying underground facilities, and conducting atmospheric corrosion survey
Agricultural diesel mechanic
Trinitas Farming
Oakdale
07.2015 - 09.2016
- Diagnosed mechanical issues in diesel engines and related systems to enhance operational reliability.
- Performed routine maintenance on farming machinery and equipment.
- Ensured compliance with safety regulations during all mechanical operations.
- Installed new parts such as radiators, injectors, hoses, belts, alternators, starters.
- Performed preventative maintenance on diesel engines and equipment.
- Diagnosed mechanical problems and made necessary repairs.
- Inspected vehicles for safety issues and roadworthiness to ensure compliance with safety standards.
- Maintained proper fluid levels to prevent engine issues and ensure reliable operation.
- Repaired fuel injection systems, turbochargers, brakes, and exhaust systems.
- Replaced worn or damaged components such as spark plugs, air filters, and oil filters.
- Assisted in the removal of engines from vehicles in order to replace them with new ones.
- Welded broken metal parts using oxyacetylene torches and electric arc welders.
- Conducted test drives before and after repair services.
- Assessed brake systems to determine necessary repairs or replacements for optimal vehicle performance.
- Read and interpreted standards, drawings and blueprints and pinpointed inspection needs for repair work.
Education
Universal EPA Certificate -
Institute of Technology
Modesto, CA01-2022
High School Diploma -
Escalon Highschool
Escalon06-2015
Skills
- Quality control coordination
- Quality assurance
- Material testing
- Process inspection
- Visual inspection
- Equipment inspection
- HVAC inspection
- Inspections and reviews
- Environmental monitoring
- Equipment calibration
- Safety protocols
- Attention to detail
- Problem solving
- Technology skills
- System evaluation
- Training others
- Mechanical inspection
- Outstanding people skills
- Equipment inspection
- Equipment safety
Languages
Spanish
Professional
Certification
Universal EPA certificate
Timeline
Quality Control Technician
Oldcastle Infrastructure
06.2025 - Current
Quality Control Technician
jensen infrastructure
07.2024 - 05.2025
Gas Service Technician
Den Defenders
09.2023 - 03.2024
Lead Transload operator
SAVAGE SERVICES INC
08.2022 - 03.2023
HVAC Installer/Technician
Star Mechanical
04.2022 - 08.2022
Leak Survey technician
Alisto engineering
04.2016 - 07.2019
Agricultural diesel mechanic
Trinitas Farming
07.2015 - 09.2016
Universal EPA Certificate -
Institute of Technology
High School Diploma -
Escalon Highschool