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M.C. Dean

Designs and deploys secure mission-critical infrastructure

HVAC Technician 3

HVAC & Building SystemsConfirmed live in the last 24 hours
Full-timeTysons, VA, USA$40 - $47.50 /hrIn-person

About the Job

Requirements

  • A high school diploma or GED and at least 6 years of experience working with complex HVAC systems and equipment, including chillers, boilers, package units, and VAV systems with direct digital, pneumatic, and automated control systems.
  • A current Virginia, Maryland, or Washington, D.C. Journeyman License or VMET certification.
  • U.S. citizenship and eligibility for access to classified information, including TS/SCI clearance with polygraph.
  • Ability to lift, carry, and move objects weighing up to 50 pounds regularly while following safe lifting practices.
  • Ability to relocate a 12-foot stepladder without assistance.
  • Ability to work at heights up to 60 feet and climb and balance on scaffolds, aerial lifts, catwalks, and ladders.
  • Ability to perform routine and repetitive walking, climbing, lifting, squatting, crawling, kneeling, pushing, pulling, and overhead reaching.
  • Good vision, including color vision, and the ability to hear and communicate in English.
  • Ability to use a standard ladder within 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, combine information to form conclusions, see details at close range, and understand spoken information.

Responsibilities

  • Inspect Engineering systems and equipment periodically, monitor equipment operations, and maintain operating logs.
  • Mentor less experienced HVAC technicians.
  • Operate and maintain site-critical Engineering systems and equipment providing heat, utility and conditioned water, ventilation, air conditioning, and other environmental and critical systems, following diagrams, operating manuals, industry best practices, and manufacturers’ specifications.
  • Monitor and control building equipment and operate the facility’s building automation system.
  • Disable and re-arm fire alarm panels when required.
  • Use test equipment and devices for building operating systems and analyze test results.
  • Operate and maintain gas-fired steam boilers.
  • Perform other related duties as requested.
  • Maintain Engineering systems and equipment, including chillers, IFUs, VAVs, HVAC controls, and fire and life-safety sprinkler systems.
  • Inspect and adjust mechanical equipment and systems; perform preventive and general maintenance while adhering to the building energy model for efficiency.
  • Record and report faults, deficiencies, and unusual occurrences.
  • Respond to emergencies and perform tasks needed to protect occupants and property.
  • Perform facilities or mission-critical-environment maintenance activities under minimal supervision.
  • Operate and maintain critical systems, including HVAC, CRAC units, life-safety and building automation systems, and utility systems.

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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