Senior Commercial HVAC Technician: Lead Diagnostics

MillerWorks; Tallahassee (FL); Hybrid; USD 70,000 - 95,000; Full time

Job summary

MillerWorks is seeking a Senior Commercial HVAC Technician to join our Tallahassee team. This role performs advanced diagnostics, repair, installation, and commissioning of commercial HVAC systems, providing leadership on complex tasks and mentoring junior technicians.

You will ensure safety, regulatory compliance, and high service quality, maintaining documentation and strong customer communication throughout every project.

Qualifications

• Requires high school diploma or equivalent; technical/vocational training preferred.
• 5–10 years of commercial HVAC service or installation experience.
• EPA 608 Universal Certification.
• Valid driver’s license with acceptable driving record.

Responsibilities

• Diagnose, repair, and maintain complex commercial HVAC systems including chillers, boilers, rooftop units etc.
• Lead field operations on service calls and projects, ensuring safety and adherence to procedures.
• Perform installations and retrofits including piping, ductwork, electrical connections and commissioning.
• Use BAS for troubleshooting and optimization.
• Provide guidance and on‑the‑job training to junior technicians.
• Maintain accurate service records and equipment logs.

Skills

HVAC troubleshooting

Leadership

Safety awareness

Communication with customers

Independent work

Education

High school diploma or equivalent

Technical or vocational training

Tools

Diagnostic tools

BAS interfaces

Digital gauges

Job description

MillerWorks is seeking a Senior Commercial HVAC Technician to join our Tallahassee team. This role performs advanced diagnostics, repair, installation, and commissioning of commercial HVAC systems, providing leadership on complex tasks and mentoring junior technicians.

You will ensure safety, regulatory compliance, and high service quality, maintaining documentation and strong customer communication throughout every project.