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M.C. Dean

Designs and deploys secure mission-critical infrastructure

HVAC Technician 2

HVAC & Building SystemsConfirmed live in the last 24 hours
Full-timeSt. Louis, MO, USANo salary listedIn-person

About the Job

Requirements

  • A high school diploma or GED and at least 4 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.
  • Must meet eligibility requirements for access to classified information, including U.S. citizenship.
  • Must be able to lift, carry, and move objects weighing up to 50 pounds regularly and follow proper lifting techniques and safety protocols.
  • Must be able to relocate a 12-foot stepladder without assistance.
  • Must be able to work at heights up to 60 feet and climb and maintain balance on scaffolds, aerial lifts, catwalks, and ladders.
  • Must be able to walk, climb, lift, squat, crawl, kneel, push, pull, and reach overhead routinely and repetitively.
  • Must possess good vision (corrected vision is acceptable), color vision, and the ability to hear and communicate in English.
  • Must be able to use a standard ladder within its weight limit while carrying tools.
  • Must be able to recognize when something is wrong or likely to go wrong; apply general rules to specific problems; combine information to draw general conclusions; see details at close range; and understand spoken information and ideas.

Responsibilities

  • Troubleshoot, maintain, and ensure the performance of HVAC equipment, using judgment within standard practices to develop imaginative, thorough, and practical solutions to a wide range of problems.
  • Periodically inspect Engineering systems and equipment, monitor equipment operations, and maintain operating logs.
  • Mentor less experienced HVAC Technicians.
  • Operate and maintain site-critical Engineering systems and equipment supplying heat, utility and conditioned water, ventilation, air conditioning, and other environmental and critical systems in accordance with 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 pertinent to building operating systems and analyze test results.
  • Operate and maintain gas-fired steam boilers.
  • Perform maintenance on Engineering systems and equipment, including chillers, IFUs, VAV systems, HVAC controls, and fire and life safety sprinkler systems.
  • Inspect and adjust mechanical equipment and systems; perform preventive maintenance 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 necessary 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.
  • Perform other related duties as requested.

Desired Qualifications

  • Completion of an HVAC technical training program at a vocational or technical school, or a recognized apprenticeship program.
  • Active Top Secret SCI with polygraph clearance, or the ability to obtain and maintain it.

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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