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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-timeAlexandria, VA, USA$40 - $47.50 /hrIn-person

About the Job

Requirements

  • At least 6 years of commercial HVAC experience and a high school diploma or GED.
  • Experience working with complex HVAC systems and equipment, including chillers, boilers, package units, and VAV systems using direct digital, pneumatic, and automated control systems.
  • Must meet eligibility requirements for access to classified information, including U.S. citizenship, and be able to obtain and maintain TS/SCI clearance.
  • Be able to lift, carry, and move objects weighing up to 50 pounds regularly, following proper lifting techniques and safety protocols.
  • Relocate a 12-foot stepladder without assistance.
  • Work at heights up to 60 feet and climb and maintain balance on scaffolds, aerial lifts, catwalks, and ladders.
  • Perform routine and repetitive walking, climbing, lifting, squatting, crawling, kneeling, pushing, pulling, and overhead reaching.
  • Have good vision, including color vision, and the ability to hear and communicate in English.
  • Use a standard ladder without exceeding its weight limit while carrying tools.
  • Recognize when something is wrong or likely to go wrong.
  • Apply general rules to specific problems and combine information to form conclusions.
  • See details at close range and listen to and understand spoken information.

Responsibilities

  • Maintain engineering systems and equipment, including chillers, IFUs, VAVs, HVAC systems, and associated controls; learn basic electrical maintenance and building automation system functions, including replacing control modules, thermostats, and sensors.
  • Inspect, troubleshoot, and adjust mechanical equipment and systems; perform preventive and general maintenance while following building energy-efficiency guidelines.
  • Conduct periodic inspections of engineering systems and equipment, monitor equipment operation, and maintain accurate operating logs.
  • Use test equipment and diagnostic devices relevant to building systems, train on additional electrical testing tools and building automation diagnostics, and analyze test results to identify maintenance needs.
  • Record and report faults, deficiencies, and unusual occurrences across mechanical, HVAC, and developing electrical and building automation skill areas; respond to emergencies and take necessary action to protect occupants and property.
  • Perform maintenance activities under minimal supervision in data centers or mission-critical environments, supporting HVAC reliability and learning integrated electrical and building automation functions as required.
  • Operate and maintain HVAC equipment, CRAC units, life safety systems, building automation systems, and utility systems; expand skills in building automation troubleshooting and component replacement.
  • Collect and generate internal and vendor field service reports for preventive maintenance and repairs; review reports for accuracy and completeness before submission to end users.
  • Identify required materials and parts for maintenance and repairs and assist with procurement of parts, equipment, and supplies.
  • Perform related duties to support facility operations, including general maintenance and cross-training in electrical maintenance and building automation technology.

Desired Qualifications

  • A current Journeyman or Master License is preferred.
  • Completion of an HVAC technical training program at a vocational or technical school, or a recognized apprenticeship program, is preferred.

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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