Robert Armijo
El Paso,TX
Summary
Executed comprehensive testing and inspection of HVAC systems to identify faults and implement effective repair strategies.
Oversaw HVAC projects by developing strategic installation and repair plans. Cultivated strong customer relationships through effective communication and service. Specialized in servicing rack systems and programming controls to enhance operational efficiency.
Overview
19
19
years of professional experience
1
1
Certification
Work History
Service Technician
Coolsys
El Paso, TX
08.2021 - Current
- Inspected equipment to diagnose operational issues.
- Maintained strong focus on safety and efficiency to provide comprehensive support to personnel performing skilled repairs.
- Managed maintenance activities, supervised staff and inspected equipment.
- Diagnosed and repaired problems with electrical and mechanical systems.
- Worked with diverse types of weather and ground conditions.
- Diagnosed and troubleshot problems, repairing, and restoring rack systems to peak performance.
- Tested systems, noting issues and completing preventive maintenance.
Refrigeration Technician
Climate Pros
08.2021 - 08.2021
- Conducted maintenance service on HVAC systems to increase life expectancy of equipment and prevent costly repair work.
- Performed troubleshooting on HVAC systems to determine root cause of issues.
- Traveled to job sites for both scheduled and emergency appointments.
- Investigated major malfunctions and breakdowns of heating and air-conditioning systems and used troubleshooting to determine causes.
- Consulted with project management during group installations.
- Inspected and tested refrigeration systems, safety devices and controls to determine proper functionality.
- Maintained comfortable environmental temperatures in city facilities.
- Read blueprints, wiring diagrams, piping schemes and engineering specifications to diagnose and repair units.
- Calibrated equipment to achieve maximum efficiency.
- Replaced bearings, pump seals and packing.
- Closed out work orders after verifying completion with customers and reporting discrepancies discovered on job site.
- Surveyed building layout and gathered materials before beginning repairs.
- Maintained boilers, hot water systems, gas heating equipment and food service equipment.
- Tested chemical levels in refrigerators and freezers to verify compliance with regulations.
- Kept accurate records of time and materials used for each job to compile into service reports.
- Reviewed work of external and internal contractors to guarantee consistency with quality and safety standards.
- Repaired and replaced motors, bearings and belts.
- Evaluated status of refrigeration liquids for safety and compliance purposes.
- Filled out detailed work orders for each job completed.
- Worked overtime, holidays and weekends to accommodate company needs.
- Connected heating or air conditioning equipment to water, fuel or refrigerant sources to form complete circuits.
- Maintained environmental conditions by rebuilding and replacing faulty components.
- Utilized pressure gauges and soap-and-water solutions to test pipe and tubing joints for leaks.
- Increased longevity of HVAC systems by performing preventive maintenance.
- Located and marked pipe positions, hole passages and duct connections in walls and floors.
- Tested automatic, programmable and wireless thermostats in residential or commercial buildings to decrease energy usage.
- Optimized performance by balancing systems and calibrating controls.
- Worked in strict compliance with applicable OSHA regulations and safety requirements.
- Tested electrical circuits or components for continuity using electrical test equipment.
- Performed routine maintenance on diverse systems.
- Removed malfunctioning parts and replaced with new components or refurbished pieces to return full functionality.
- Managed complex projects and maintained reputation for completing work on-time and under-budget.
- Completed root cause analysis to identify issues, understand problems and implement corrective plans.
HVAC-R Service Technician
Walmart Stores,INC
04.2019 - 07.2021
- Performed troubleshooting on HVAC systems to determine root cause of issues.
- Conducted maintenance service on HVAC systems to increase life expectancy of equipment and prevent costly repair work.
- Kept accurate records of time and materials used for each job to compile into service reports.
- Traveled to job sites for both scheduled and emergency appointments.
- Worked overtime, holidays and weekends to accommodate company needs.
- Replaced bearings, pump seals and packing.
- Assembled air ducts, pipes, discharge valves and flues to central heating and cooling equipment.
- Maintained environmental conditions by rebuilding and replacing faulty components.
- Utilized pressure gauges and soap-and-water solutions to test pipe and tubing joints for leaks.
- Worked in strict compliance with applicable OSHA regulations and safety requirements.
- Selected correct motors, thermostats and other components to replace defective parts.
- Kept accurate records of work activities, time, materials, and faults on work orders.
- Used pressure gauges and soap-and-water solution to test connections for leaks.
HVAC Contractor
Hussmann Refrigeration
05.2015 - 04.2019
- Replaced bearings, pump seals and packing.
- Read blueprints, wiring diagrams, piping schemes and engineering specifications to diagnose and repair units.
- Traveled to job sites for both scheduled and emergency appointments.
- Kept accurate records of time and materials used for each job to compile into service reports.
- Filled out detailed work orders for each job completed.
- Maintained comfortable environmental temperatures in city facilities.
- Inspected and tested refrigeration systems, safety devices and controls to determine proper functionality.
- Connected heating or air conditioning equipment to water, fuel or refrigerant sources to form complete circuits.
- Located and marked pipe positions, hole passages and duct connections in walls and floors.
- Installed, connected and adjusted thermostats, humidistats and timers for optimal performance.
HVAC Service Technician/ Construction Assistant
Chill Refrigeration
Albuquerque, NM
04.2007 - 04.2015
- Provided technical support and maintenance services for range of computer hardware and software.
- Read and followed technical documentation to complete accurate repairs.
- Tore down, repaired and rebuilt faulty assemblies such as power systems, steering systems and linkages.
- Serviced air conditioning systems, changed and topped off fluids and completed maintenance inspections.
- Maintained accurate records of service calls and customer interactions for training and accountability purposes.
- Responded to problems reported by customers by troubleshooting and resolving hardware and software issues.
- Evaluated systems according to predetermined checklist and noted issues.
- Installed new equipment and explained operation and routine maintenance protocols to customers.
Field Service Technician
Copeland
Atlanta, GA
04.2025 - 02.2026
- Proven ability to learn quickly and adapt to new situations.
- Excellent communication skills, both verbal and written.
- Monitored BMS performance and reported issues to ensure timely resolution.
- Maintained strict compliance with industry standards, codes, and regulations throughout all BMS engineering activities.
- Evaluated emerging technologies for potential implementation in future projects or upgrades of existing systems.
- Optimized HVAC operations by balancing loads, calibrating sensors, and fine-tuning setpoints according to seasonal requirements.
- Comminsion, startup, and optimize new and existing refrigeration and BMS systems.
- Lead on site technician, guide contractors, onsite for mild support.
- Develop, load and test control programs and logic sequences. (E2E and E3 controller)
- Diagnose complex issues with Copeland, refrigeration, racks, electronic controls, and system architecture.
- 90% Travel
Education
High School Diploma -
Rio Grande High School
Albuquerque, NMSkills
- HVAC and refrigeration systems
- Package and split systems
- Diagnostic techniques
- Single compressor systems
- Refrigeration system evacuation
- Microsoft Office proficient
- PCS expert
- Troubleshooting expertise
- Commercial refrigeration knowledge
- Soldering
- Focused on safety
- Licensed Refrigeration Technician
- Customer-focused
- HVAC change-out procedures expert
- Clean driving record
- Blueprint Interpretation
- Chillers
- EPA requirements knowledge
- Preventive maintenance
- HVAC Systems
- Verbal and Written Communication
- Installation and Repair
- Service Reports
- Replacing Parts
- Refrigerant Compressors
- Preventive Maintenance
- Valid Driver's License
- OSHA Requirements
- HVAC and Refrigeration Systems
- AC and Heating
- BMS
- Controls/ Programming
Certification
EPA Certified
Timeline
Field Service Technician
Copeland
04.2025 - 02.2026
Service Technician
Coolsys
08.2021 - Current
Refrigeration Technician
Climate Pros
08.2021 - 08.2021
HVAC-R Service Technician
Walmart Stores,INC
04.2019 - 07.2021
HVAC Contractor
Hussmann Refrigeration
05.2015 - 04.2019
HVAC Service Technician/ Construction Assistant
Chill Refrigeration
04.2007 - 04.2015
High School Diploma -
Rio Grande High School