Critical Facility Technician 4 (Controls System Focus) - United Kingdom

M.C. Dean, Inc; Tysons (VA); On-site; GBP 45,000 - 60,000; Full time

Benefits offered by this job

Job summary

M.C. Dean, Inc. is seeking a skilled Data Center CET Technician to ensure peak uptime of electrical, mechanical, and fire/life safety systems. You will perform preventive maintenance, respond to emergencies, and collaborate with engineers, customers, and vendors to keep mission‑critical infrastructure running smoothly.

You will read and interpret diagrams, operate BMS/EPMS, and adhere to safety and CMMS procedures while lifting, climbing, and working at heights as required.

Qualifications

• High school diploma or equivalent.
• 10+ years of field experience in data center environments.
• Preferred Journeyman Electrician or Journeyman HVAC licenses.
• Ability to obtain Top Secret/SCI clearance with polygraph.
• Experience programming Tridium Niagara or Ignition.

Responsibilities

• Maintain electrical, mechanical, and fire/life safety equipment in data centers to ensure uptime.
• Perform planned preventive maintenance, daily corrective work, and emergency response.
• Serve as technical resource to Lead CET and Chief Engineer, coordinating with customers and vendors.
• Read wiring diagrams, blueprints, and MOP/SOP documents; follow site procedures.
• Log activities in CMMS and ensure safe, compliant operations.

Skills

Electrical maintenance

BMS navigation

Troubleshooting

Lockout/Tagout

Safety compliance

Education

High school diploma or equivalent

Tools

Tridium Niagara

Inductive Automation Ignition

Job description

Overview

About M.C. Dean is Building Intelligence. We design, build, operate, and maintain cyber-physical solutions for the nation’s most mission‑critical facilities, secure environments, complex infrastructure, and global enterprises. With over 7,000 employees, our capabilities span electrical, electronic security, telecommunications, life safety, automation and controls, audiovisual, and IT systems. Headquarters in Tysons, Virginia, M.C. Dean delivers resilient, secure, and innovative power and technology solutions through engineering expertise and smart systems integration.

Why Join Us?

Our people are passionate about engineering innovation that improves lives and drives impactful change. Guided by our core values—agility, expertise, and trust—we foster a collaborative and forward-thinking work environment. At M.C. Dean, we are committed to building the next generation of technical leaders in electrical, engineering, and cybersecurity industries.

Clearance Requirement:Applicants selected will be subject to a government security investigation and must meet eligibility requirements, including U.S. Citizenship, for access to classified information; Ability to obtain and maintain a Top Secret/SCI Security Clearance, with polygraph

License/Certification Requirement

Preferred - Journeyman Electrician License, Journeyman HVAC license or equivalent.

Responsibilities

Responsible for ensuring that all electrical, mechanical, and fire/life safety equipment within the data center is operating at peak efficiency. This involves both planned preventative maintenance of equipment, daily corrective work, and emergency response to emergent issues. The technician serves as an expert technical resource reporting to a Lead CET and Chief Engineer, interacting with Customer representatives, and any third-party vendors. They are expected to be a singular focal point for all facility operations within a given data center and to support operated data centers. Data center equipment that supports mission‑critical servers must maintain better than 99.999% uptime.

• Understand the function, purpose, nominal operating parameters, and how to operate/isolate and start up: MV/LV Distribution Boards, MV/LV Breakers, UPS, Generator, Batteries, STS, ATS, AHU, DX units, Chillers, Evap Washer Systems, CRAC Units, Fuel Systems, BMS System, EPMS System, and Fire Alarm System.
• Conversant of the BMS and EPMS systems and the impact of any state change, capable of navigating the system, interpreting alarms, and able to perform controlled shutdowns/startups/equipment rotations.
• Utilizes safe working practices; can apply lockout/tagout, SDS, applies good housekeeping methods, etc.
• Ability to read and interpret wiring diagrams, blueprints, floor plans, construction documents, mechanical riser drawings, OEM operating and maintenance instructions, job specifications, and MOP/SOP's.
• Understands the refrigeration cycles to include identifying components in advanced refrigeration circuits, understanding how each component works, diagnosing and correcting problems in the refrigeration circuit, using manifold gauge set, pressure/temperature chart and temperature measuring devices for routine maintenance and to troubleshoot.
• Ability to use hand tools and test equipment to install, troubleshoot, and repair new or replacement parts for existing units covered under CET1 classified procedures, according to specifications and established safety guidelines, relying on MOPs, manufacture's literature, and industry best practices to perform tasks under supervision, and ensures activitiesare logged in CMMS.
• Daily walk-through of facility documenting parameters such as power availability, temperature and humidity, alarm status, etc. to be catalogued and compared for identification of discrepancies and trends.
• Ability to understand site‑specific processes and procedures such as how to report an incident or outage, procedure execution, PM standards, CMMS system, as well as the use of SharePoint to access CE procedures and training content.
• Ability to learn how to access the site primary and secondary EOP's and understand the purpose of each of the EOP's and the critical nature of being an operator and first responder in the datacenter.
• Navigate and verify the nominal status of the electrical and mechanical infrastructure via the BMS and EPMS systems, following site MOP & SOP procedures.

Qualifications

• Requires a high school diploma or equivalent with 10+ years of experience and possess strong verbal and written communication skills.
• Preferred - Journeyman Electrician License, Journeyman HVAC license or equivalent.
• Ability to obtain and maintain a Top Secret/SCI Security Clearance, with polygraph
• Experience in programming Tridium Niagara or Inductive Automation Ignition as a requirement
• Experience in programming both Tridium Niagara and Inductive Automation Ignition is preferred

Abilities:

• The position requires the ability to lift, carry, and move objects weighing up to [50 pounds] on a regular basis. Candidates must demonstrate physical strength and stamina to perform various tasks, including but not limited to, loading, and unloading, operating equipment, and assisting in the transportation of various materials. Proper lifting techniques and safety protocols must be followed to ensure personal and team safety.
• Relocates a 12 foot stepladder without assistance.
• Works at various heights up to 60 feet and can climb and maintain balance on scaffolds, aerial lifts, catwalks and all types of ladders.
• Walks, climbs, lifts, squats, crawls, kneels, pushes, pulls and reaches overhead on a routine and repetitive basis.
• Possess good vision (may be corrected vision), the ability to see in color, and the ability to hear and communicate in English.
• May use a standard ladder without exceeding the weight limit while carrying tools.
• Tell when something is wrong or is likely to go wrong. It does not involve solving the problem, only recognizing there is a problem.
• Apply general rules to specific problems to produce answers that make sense.
• Combine pieces of information to form general rules or conclusions (including finding a relationship among seemingly unrelated events).
• See details at close range (within a few feet of the observer).
• Listen to and understand information and ideas presented through spoken words and sentences.