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M.C. Dean

Designs and deploys secure mission-critical infrastructure

HVAC Technician 1

HVAC & Building SystemsConfirmed live in the last 24 hours
Full-timeTysons, VA, USA$25 - $35 /hrIn-person

About the Job

Requirements

  • A high school diploma or GED and at least 3 years of commercial HVAC experience, or at least 1 year of experience with an associate degree.
  • Commercial HVAC experience as a truck-based service technician.
  • Experience with complex HVAC systems, including chillers, boilers, package units, air handling units, and variable air volume systems using direct digital, pneumatic, and automated controls.
  • Current CFC/EPA Universal Certification, or ability to obtain it within one year.
  • Holistic understanding of mechanical equipment and HVAC design in commercial and industrial environments.
  • HVAC original equipment manufacturer factory training or experience with Trane, Liebert, Stulz, or other major brands.
  • Ability to obtain and maintain a Top Secret clearance and undergo a government background investigation.
  • Valid driver's license; the position may require ongoing or intermittent use of a company vehicle.
  • Strong understanding of HVAC tools and machines and their proper maintenance.
  • Proficiency using hand tools and test equipment for diagnostic and repair work.
  • Ability to complete timely documentation, including maintenance reports, service tickets, and daily safety briefings.
  • Strong written and verbal communication skills in English.
  • Willingness to work nights and weekends and participate in a 24/7 on-call rotation.
  • Willingness to travel occasionally outside normal working areas, including limited overnight travel if required.
  • Basic computer skills, including Microsoft Office applications.
  • Ability to work independently, resourcefully, and safely.
  • Ability to lift, carry, and move objects weighing up to 50 pounds regularly while following proper lifting techniques and safety protocols.
  • Ability to relocate a 12-foot stepladder without assistance.
  • Ability to work at heights up to 60 feet and climb and maintain balance on scaffolds, aerial lifts, catwalks, and ladders.
  • Ability to routinely and repetitively walk, climb, lift, squat, crawl, kneel, push, pull, and reach overhead.
  • Good vision, including corrected vision, ability to see in color, and ability to hear and communicate in English.
  • Ability to use a standard ladder without exceeding its weight limit while carrying tools.
  • Ability to recognize when something is wrong or likely to go wrong.
  • Ability to apply general rules to specific problems to produce sensible answers.
  • Ability to combine information into general rules or conclusions, including identifying relationships between seemingly unrelated events.
  • Ability to see details at close range.
  • Ability to listen to and understand spoken information and ideas.

Responsibilities

  • Perform preventive and corrective maintenance on air-cooled chillers, air handling units, boilers, cooling towers, data center cooling systems, exhaust and filtration systems, heat exchangers, heat pumps, humidification systems, piping, pumps, rooftop units, variable air volume systems, variable frequency drives, and walk-in coolers and freezers.
  • Install air conditioning units and air-cooled chillers; overhaul and replace boilers; install commercial water heaters; and rebuild and install water-cooled and direct-expansion pumps.

Desired Qualifications

  • Completion of an HVAC technical training program or recognized apprenticeship.
  • Advanced component-level troubleshooting of boilers, chillers, air handling units, variable air volume systems, heat pumps, and computer room air conditioning units.
  • Ability to read and interpret mechanical drawings, schematics, and system plans.
  • Current Master HVAC License or equivalent technical degree.
  • Experience with Liebert HVAC systems.
  • Ability to provide clients with proactive recommendations.

About the Company

M.C. Dean

Designs and deploys secure mission-critical infrastructure

M.C. Dean designs, builds, operates, and maintains integrated cyber-physical systems for mission-critical facilities, secure environments, and large enterprises. Its work spans electrical power, security, telecommunications, life safety, automation and controls, audio-visual, and IT systems, all coordinated through management platforms that support long-term operation and sustainability. The company works end-to-end: it engineers solutions, installs them, and then runs and maintains them to ensure continuous, secure, and resilient performance. What sets it apart is its ability to provide comprehensive, turnkey technology and infrastructure services for critical environments—combining physical systems with digital management to create secure, automated facilities. The goal is to deliver automated, secure, and resilient power and technology systems and the platforms needed to manage them over the long term.

Company size
1,001-5,000
Company stage
Not listed
Total funding
Not listed
Headquarters
Tysons, VA
Founded
1949

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