JOSHUA D. HERNANDEZ
Santa Maria,CA
Summary
Seeking an opportunity to further develop my career in the HVAC/R Industry with an employer who offers an opportunity to increase my skills and continue to develop professionally.
Highly-motivated employee with desire to take on new challenges. Strong work ethic, adaptability, and exceptional interpersonal skills. Adept at working effectively, unsupervised, and quickly mastering new skills.
Overview
4
4
years of professional experience
1
1
Certification
Work History
Industrial Maintenance Technician
Ralphs Kroger
Compton, California
07.2025 - Current
- Diagnosed mechanical issues and performed timely repairs on machinery.
- Conducted preventive maintenance on equipment to ensure optimal performance.
- Maintained accurate records of maintenance activities and repairs completed.
- Assisted in training new technicians on safety procedures and equipment use.
- Coordinated with management to schedule maintenance activities with minimal disruption.
- Replaced worn-out belts, chains, sprockets, gears, bearings and other components.
- Diagnosed electrical, mechanical and plumbing problems to apply corrective action for operational efficiency.
- Ordered necessary replacement parts from suppliers when needed for repairs.
- Adhered to safety, health, and environmental rules and regulations to avoid workplace injury and comply with OSHA standards.
- Operated hand tools to repair or replace defective parts.
Ammonia Refrigeration Technician
Ralphs Kroger
Compton, California
07.2025 - Current
- Performed preventative maintenance on ammonia refrigeration systems and components.
- Adhered strictly to safety protocols when working with hazardous materials like ammonia.
- Conducted routine inspections and troubleshooting of refrigeration equipment and controls.
- Collaborated with team members to ensure efficient operation of refrigeration processes.
- Monitored system pressures, temperatures, and levels to ensure proper functionality.
- Maintained and serviced HVAC systems and refrigeration equipment.
- Responded quickly to emergency situations involving ammonia refrigeration systems.
- Inspected and tested system components for proper operation.
- Analyzed data from logbooks to determine trends in performance of the systems.
- Maintained records of all repairs, inspections, and tests performed.
Refrigeration and Air Conditioning Technician
Accutherm Refrigeration
Garden Grove, California
09.2024 - 07.2025
- Calibrated system components to maximize energy efficiency while maintaining optimal comfort levels.
- Performed preventive maintenance on air conditioning units including changing filters and cleaning coils.
- Tested electrical circuits to ensure proper functioning of motors, switches, thermostats and safety controls.
- Installed compressors, evaporators, condensers, receivers, expansion valves and other components of HVAC systems.
- Operated soldering equipment to seal joints between pipes in refrigeration systems.
- Diagnosed and repaired malfunctions in residential and commercial refrigeration systems.
- Adjusted system controls to regulate temperature levels according to customer specifications.
D38 Freight Associate
Home Depot
Santa Maria, USA
07.2022 - 11.2023
- Unloaded incoming shipments from trucks with product
- Certified and operated heavy machinery equipment including forklift, electric pallet jack, order picker, pacer, reach truck and electric ladder
- Organized loading docks to reduce clutter and prevent collisions
- Made sure truck was clean and free of debris, trash, and grease buildup after delivery
- Picked up orders that had been placed with Home Depot by customers
- Organized stock room so it was neat, clean, and efficient
- Loaded trucks with products to be shipped back to various locations around the country
- Worked with Home Depot team to provide fast, accurate service
- Kept traffic flowing smoothly throughout the store
- Moved merchandise to other areas of the store as demand dictated
Education
Diploma - HVAC/R Technology
Brownson Technical School
Anaheim, CA09-2024
High School Diploma -
Pioneer Valley High School
Santa Maria, CA06-2022
Skills
- HVAC Systems/Controls Training
- Repair and Maintenance
- Furnaces/Package Units/Heat Pumps
- Read Schematics/Wiring Diagrams
- Freight Handling
- Heavy Machinery Certified
- Proper Charging Procedures
- Safety compliance
- Defrost controls
- Building Performance/Efficiency
- DDC Controls and Software
- Ice Machines Training
- Brazing/Soldering
- Refrigeration systems
- HVAC troubleshooting
- Electrical testing
- Preventive maintenance
- Customer service
- Parts ordering
- Critical thinking
- Leak detection
- System diagnostics
- Electrical wiring
- Refrigeration troubleshooting
- Commercial refrigeration
- Mechanical skills
- Ammonia Operator
- Industrial maintenance
Certification
- EPA Universal 608, 609 & 410a
- OSHA 10
- NATE Core
- BACnet Facilities Managers Guide to BAS
- Yaskawa HV600 Startup Specialist
- BACnet Basics
- BACnet Device Profiles
- HVAC Excellence Electrical
- HVAC Excellence Air Conditioning
Timeline
Industrial Maintenance Technician
Ralphs Kroger
07.2025 - Current
Ammonia Refrigeration Technician
Ralphs Kroger
07.2025 - Current
Refrigeration and Air Conditioning Technician
Accutherm Refrigeration
09.2024 - 07.2025
D38 Freight Associate
Home Depot
07.2022 - 11.2023
Diploma - HVAC/R Technology
Brownson Technical School
High School Diploma -
Pioneer Valley High School