Critical Environment Master HVAC Technician

Position Summary

We are seeking a highly skilled Critical Environment Master HVAC Technician to join our growing Critical Facilities team. This position is responsible for maintaining, troubleshooting, repairing, and optimizing complex mechanical systems that support mission-critical facilities operating 24/7/365.

The ideal candidate is a subject matter expert in critical cooling infrastructure and possesses extensive experience maintaining HVAC systems in environments where uptime, reliability, and safety are paramount. This individual will play a key role in ensuring continuous operation of mechanical systems while adhering to strict maintenance procedures, safety protocols, and customer service standards.

• Perform preventive, predictive, and corrective maintenance on mission-critical HVAC and mechanical systems.
• Diagnose and repair complex HVAC, refrigeration, and hydronic system issues with minimal downtime.
• Support commissioning activities for new mechanical installations and retrofits.
• Read and interpret mechanical drawings, P&IDs, sequence of operations, and control diagrams.
• Conduct root cause analysis (RCA) following equipment failures and recommend long-term corrective actions.
• Develop and execute Maintenance Operating Procedures (MOPs), Standard Operating Procedures (SOPs), and Emergency Operating Procedures (EOPs).
• Monitor equipment performance using Building Management Systems and trend data.
• Respond to emergency service calls while maintaining uptime requirements.
• Coordinate with electrical, controls, engineering, and operations teams during maintenance activities.
• Mentor junior technicians and provide technical leadership during complex repairs.
• Ensure all work complies with OSHA, EPA, NFPA, ASHRAE, and company safety standards.
• Maintain accurate maintenance records utilizing CMMS software.
• Strictly adhere to customer and company safety and security protocols throughout the conduct of job responsibilities
• Maintain and troubleshoot:
• Chilled Water Systems
• Air-Cooled Chillers
• Water-Cooled Chillers
• Cooling Towers
• Fluid Coolers
• CRAC Units
• CRAH Units
• In-Row Cooling Systems
• Rear Door Heat Exchangers
• DX (Direct Expansion) Systems
• Pumps and Variable Frequency Drives (VFDs)
• Heat Exchangers
• Building Automation Systems (BAS/BMS)

• High School Diploma or GED (Technical Degree preferred)
• EPA Universal Refrigeration Certification
• Minimum 10+ years of commercial or industrial HVAC experience Preferred
• Minimum 3 years supporting mission-critical facilities or data centers
• Strong electrical troubleshooting skills up to 480V (preferred)
• Experience working with redundant N+1 and 2N cooling systems
• Ability to read blueprints, schematics, and sequence of operations
• Proficient with computerized maintenance management systems (CMMS)
• Strong written and verbal communication skills
• Strong sense of customer service and proactive communication

• Mechanical refrigeration cycles
• Chilled water systems
• Psychrometric Properties
• Hydronic systems
• HVAC controls
• BAS/BMS platforms

• Journeyman or Master HVAC Certification
• HVAC Trade School Certification
• Experience supporting Tier III or Tier IV Data Centers
• Knowledge of ASHRAE Thermal Guidelines for Data Processing Environments
• Familiarity with server liquid cooling technologies, including direct-to-chip and liquid immersion cooling, is considered a plus.
• Experience with commissioning and retro-commissioning
• OSHA 30 Certification
• NFPA 70E Training
• Experience working in live critical environments

• Schneider Electric
• Vertiv
• Stulz
• Liebert
• Trane
• Carrier
• Daikin
• Johnson Controls
• Siemens
• Honeywell Controls

• Advanced HVAC Diagnostics
• Refrigeration Systems
• Mechanical Controls
• BAS/BMS Programming & Monitoring
• VFD Troubleshooting
• Pump Alignment
• Cooling Tower Maintenance
• Chiller Optimization
• Hydronic Balancing
• Root Cause Analysis
• Predictive Maintenance Technologies
• Infrared Thermography
• Vibration Analysis
• Energy Efficiency Optimization

• Safety First Mindset
• Critical Thinking
• Problem Solving
• Customer Focus
• Team Leadership
• Strong Communication Skills
• Attention to Detail
• Time Management
• Decision Making Under Pressure
• Continuous Improvement
• Professionalism

• Ability to lift up to 75 pounds
• Ability to climb ladders and work on rooftops
• Ability to work in hot, cold, and confined spaces
• Ability to stand and walk for extended periods
• Ability to participate in an on-call rotation
• Ability to travel up to 25%

• Competitive Salary
• Annual Performance Bonus
• Company Vehicle (where applicable)
• Medical, Dental, and Vision Insurance
• 401(k) with Company Match
• Paid Time Off
• Tuition Reimbursement
• Ongoing Technical Training
• Career Advancement Opportunities
• Opportunity to work in some of the most advanced mission-critical facilities in the industry

The successful candidate is an experienced HVAC professional who thrives in high-performance environments where reliability is non-negotiable. They possess deep technical expertise in…