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.

Key Responsibilities

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)

Required Qualifications

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

Advanced knowledge of:

Mechanical refrigeration cycles

Chilled water systems

Psychrometric Properties

Hydronic systems

HVAC controls

BAS/BMS platforms

Preferred Qualifications

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

Experience with:

Schneider Electric

Vertiv

Stulz

Liebert

Trane

Carrier

Daikin

Johnson Controls

Siemens

Honeywell Controls

Technical Skills

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

Core Competencies

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

Physical Requirements

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%

Why Join Our Team?

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

Ideal Candidate Profile

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 critical cooling infrastructure, excel under pressure, and are passionate about maintaining the systems that keep today's digital infrastructure running. They demonstrate leadership, sound judgment, and a commitment to operational excellence while mentoring others and continuously improving facility performance.