Omar Zaki
Journeyman Commercial HVACR Technician
Houston,TX
Summary
Journeyman-level Commercial HVACR Technician with 4+ years of hands-on experience in commercial and residential HVAC installation, equipment replacement, preventive maintenance, and troubleshooting. Experienced with rooftop units (RTUs), water-cooled chillers, cooling towers, and HVAC electrical systems. OSHA-trained and safety-conscious, capable of working independently or as part of a team. Willing to travel nationwide, work extended hours, and adapt to demanding commercial environments. Reliable, motivated, and committed to delivering high-quality HVAC performance.
Overview
4
4
years of professional experience
Work History
Commercial / Residential HVACR Technician
Mays AC
Houston, TX
02.2022 - Current
- Perform commercial and residential HVAC system installations, including equipment set, connections, and system start-up
- Complete commercial HVAC equipment replacements, including rooftop units and associated components
- Work under the supervision of senior and master-level technicians, following proper installation standards and safety procedures
- Assist with and execute RTU change-outs, ensuring correct placement, secure mounting, and proper operation
- Perform HVAC electrical tasks, including disconnects, component wiring, and troubleshooting electrical issues
- Conduct preventive maintenance and inspections to ensure system reliability and performance
- Diagnose and troubleshoot HVACR issues involving airflow, electrical faults, refrigerant systems, and mechanical components
- Work in outdoor rooftop environments in hot and cold conditions
- Follow OSHA construction safety guidelines and maintain a clean, organized job site
- Demonstrate flexibility with extended work hours, overtime, and job travel as required
- Managed 20–35 service calls per week, including maintenance, troubleshooting, and HVAC installations in residential and light commercial settings
Engineering HVAC Technician (Contract)
HYATT REGENCY
Houston, TX
03.2024 - 10.2024
- Performed 100% commercial HVAC maintenance on central water-cooled chiller systems supporting a large, high-occupancy hotel facility
- Maintained and serviced the cooling tower, ensuring proper heat rejection, water flow, and system efficiency
- Supported HVAC operations for 200+ guest rooms utilizing water-based terminal HVAC units
- Worked independently under the direction of the Chief Engineer, prioritizing work orders and system performance
- Improved cooling consistency across guest rooms, contributing to fewer comfort-related complaints
- Increased overall system reliability through proactive maintenance and issue resolution
- Contributed to improved energy efficiency by identifying and correcting performance issues within the HVAC system
- Followed strict safety and operational procedures, including Lockout/Tagout (LOTO), PPE usage, and established SOPs
- Operated in a live hospitality environment requiring professionalism, urgency, and minimal guest disruption
Education
Certificate - HVAC
06.2021
Skills
Commercial\Residential HVAC Installation & Equipment Replacement
Rooftop Units (RTUs) Installation & Start-Up
Water-Cooled Chiller & Cooling Tower Maintenance
Water-Based Terminal Units (Fan Coils / Unit Heaters)
HVAC Troubleshooting & Diagnostics
HVAC Electrical Systems
Preventive Maintenance & System Inspections
Construction Site Safety & OSHA Compliance
Lockout/Tagout (LOTO) & PPE Procedures
Independent & Team-Based Work
Ability to Travel Nationwide (100%) & Work Overtime
Certifications / Licenses
- EPA 608 Certification – Refrigerant Handling (Active)
- OSHA 10 Safety Training – Construction Safety Compliance
- R-32 Refrigerant Training – Safe Refrigerant Handling & System Service
- TDLR Registered HVACR Technician – Texas
- Valid Driver’s License – Ready for Nationwide Travel
Languages
English
Professional Working
Arabic
Native or Bilingual
Spanish
Elementary
Timeline
Engineering HVAC Technician (Contract) - HYATT REGENCY
03.2024 - 10.2024
Commercial / Residential HVACR Technician - Mays AC
02.2022 - Current
Florida Career College - Certificate, HVAC