On-Call HVAC Technician for Critical Facilities

M.C. Dean, Inc.; McLean (VA); On-site; USD 34,000 - 48,000; Full time

Job summary

M.C. Dean, Inc. is seeking an HVAC service technician to maintain and install critical mechanical systems for government and commercial facilities.

You will work with chillers, boilers, AHUs, VAVs, and cooling towers, with on‑call rotations, night/weekend shifts, and potential travel. The role requires a high school diploma or GED, HVAC training, and CFC/EPA certification, with Top Secret clearance eligibility.

Qualifications

• High school diploma or GED with 3+ years of commercial HVAC experience.
• Experience with chillers, boilers, AHUs, VAVs and related controls.
• Completion of HVAC training or apprenticeship preferred.
• Current CFC/EPA Universal Certification (within 1 year).
• Ability to obtain and maintain Top Secret clearance.

Responsibilities

• Provide full-service maintenance and installation for mechanical systems.
• Perform preventive and corrective maintenance on HVAC equipment.
• Work on air cooled chillers, boilers, AHUs, VAVs, and related systems.
• Complete maintenance reports and service tickets.
• Travel and work nights/weekends/on-call rotation as required.

Skills

Strong communication skills

Willingness to work nights/weekends on

Independent and safe worker

Ability to travel occasionally

Education

High school diploma or GED

Associate degree (1+ year experience)

HVAC training program or apprenticeship

Current CFC/EPA Universal Certification

Master HVAC License (preferred)

Tools

Liebert HVAC systems

HVAC test equipment

Microsoft Office

Job description

M.C. Dean, Inc. is seeking an HVAC service technician to maintain and install critical mechanical systems for government and commercial facilities.

You will work with chillers, boilers, AHUs, VAVs, and cooling towers, with on‑call rotations, night/weekend shifts, and potential travel. The role requires a high school diploma or GED, HVAC training, and CFC/EPA certification, with Top Secret clearance eligibility.