Critical Facility Technician ; Mechanical​/HVAC Focus; United Kingdom

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.

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.

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 activities are logged in CMMS.
• Daily walk-through of facility documenting parameters such as power availability, temperature and humidity, alarm status, etc. to be catalogued and…