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M.C. Dean

Designs and deploys secure mission-critical infrastructure

Critical Facility Technician 1

Building & Property MaintenanceConfirmed live in the last 24 hours
Full-timeSt. Louis, MO, USA$20 - $29 /hrIn-person

About the Job

Requirements

  • High school diploma or equivalent and at least 4 years of experience with electrical, mechanical, and fire/life safety equipment.
  • Ability to obtain and maintain a Top Secret/Sensitive Compartmented Information clearance with polygraph.
  • Ability to lift, carry, and move objects weighing up to 50 pounds regularly, 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 balance on scaffolds, aerial lifts, catwalks, and ladders.
  • Ability to walk, climb, lift, squat, crawl, kneel, push, pull, and reach overhead on a routine and repetitive basis.
  • Good vision, including color vision, 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 and produce sensible answers.
  • Ability to combine information and derive conclusions, including relationships among seemingly unrelated events.
  • Ability to see details at close range.
  • Ability to listen to and understand spoken information and ideas.

Responsibilities

  • Ensure electrical, mechanical, and fire/life safety equipment in the data center operates efficiently through planned preventive maintenance, daily corrective work, and emergency response.
  • Serve as a technical resource for facility operations, report to a program manager, interact with Onsite Engineering Operations and third-party vendors, and support operated data centers.
  • Use safe working practices, including lockout/tagout, safety data sheets, and good housekeeping.
  • Use common administrative and office software.
  • Read and interpret wiring diagrams, blueprints, floor plans, construction documents, mechanical riser drawings, original equipment manufacturer operating and maintenance instructions, job specifications, and method of procedure and standard operating procedure documents.
  • Use hand tools and test equipment to install, troubleshoot, and repair mechanical and electrical equipment under supervision, following specifications and safety guidelines; use procedures, manufacturer literature, and industry practices, and log activities in a computerized maintenance management system.
  • Assist a CET2/3 technician with CET2-classified site procedures and transfer knowledge and train other technicians.
  • Conduct daily facility walkthroughs and document power availability, temperature, humidity, alarm status, and other parameters to identify discrepancies and trends.
  • Follow site processes for procedure creation and review, incident and outage reporting, procedure execution, preventive-maintenance standards, computerized maintenance management system policy, work orders, and notifications; use SharePoint to access CE procedures and training content.
  • Learn site primary and secondary emergency operating procedures and master the first-responder role during emergencies.
  • Complete drills associated with site primary and secondary emergency operating procedures.
  • Understand the purpose, operating parameters, operation, isolation, and startup of medium- and low-voltage distribution boards and breakers, uninterruptible power supplies, generators, batteries, static transfer switches, automatic transfer switches, air-handling units, direct-expansion units, chillers, evaporative washer systems, computer-room air-conditioning units, fuel systems, ASCO systems, building management systems, electrical power monitoring systems, and fire alarm systems.
  • Navigate building management and electrical power monitoring systems, interpret alarms, understand the impact of state changes, and perform controlled shutdowns, startups, and equipment rotations.
  • Disable and enable fire alarm control panels and systems when applicable to the role.
  • Maintain maintenance records as required by city, state, and Environmental Protection Agency regulations.
  • Interpret building codes and local and federal regulations related to installations and apply them at the site.
  • Identify materials and parts needed for maintenance and repair to support procurement.
  • Understand heating-system components and operation; diagnose heating problems using gas pressure tests and other devices, and perform routine maintenance and troubleshooting repairs.
  • Understand advanced refrigeration circuits and their components; diagnose and correct refrigeration problems using manifold gauge sets, pressure/temperature charts, and temperature-measuring devices for maintenance and troubleshooting.
  • Apply knowledge of power density and parity with heating, ventilation, and air-conditioning capacities, and cooling and heat-load/loss calculations.

Desired Qualifications

  • Journeyman electrician license, journeyman heating, ventilation, and air-conditioning license, or equivalent.

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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