Critical Facility Technician - TS​/SCI Polygraph

Critical Facility Technician 4 - TS/SCI with Polygraph

Join to apply for the Critical Facility Technician 4 - TS/SCI with Polygraph role at M.C. Dean, Inc.

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.

Applicants selected will be subject to a government security investigation and may meet eligibility requirements, including U.S. Citizenship, for access to classified information;
Applicant must hold an active Top‑Secret SCI with Poly clearance.

Continued employment for this role will be dependent on ability to meet customer security requirements, including requirement to provide a valid passport for site access.

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 program manager, interacting with Onsite Engineering Operations (OEO) 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.

• Requires meeting all requirements of CET
  3. The CET4 is an elite SME position. To attain the CET4 level a candidate must be an SME on several critical equipment types.
• Understand the sequence of operations, how a failure of a piece of critical equipment impact other systems, and have a holistic view of the critical environment infrastructure and ability to comprehend the effect of any actions on a piece of critical equipment or systems, including: MV/LV Distribution Boards, MV/LV Breakers, UPS, Generator, Batteries, STS, ATS, AHU, DX units, Chillers, Evap Washer Systems, CRAC Units, Fuel Systems, ASCO Systems, BMS System, EPMS System, and Fire Alarm System.
• Capable of reviewing service reports on the critical equipment or systems within the scope of the CET4 position. Consequently, they will be able to spot anomalies in service report findings, improper maintenance practices and capable of flagging deterioration of critical equipment and components therein.
• Capable of implementing Reliability‑Centered maintenance processes and techniques.
• Capable and proficient in leading and implementing Failure Mode and Effect Analysis (FMEA) reports.
• Capable of conducting a detailed root cause analysis (RCA) report.
• Develop reliability reports to assist in identifying areas for increased efficiency, resiliency, or to mitigate unplanned downtime.
• Ensures availability and capacity targets are achieved and maintained.

• Applicant must have a minimum 10+ years of experience in electrical, mechanical, and fire/life safety equipment. with a high school diploma or GED.
• Applicants selected will be subject to a government security investigation and may meet eligibility requirements, including U.S. Citizenship, for access to classified information;
  Applicant must hold an active Top‑Secret SCI with Poly clearance.
• Applicants must be flexible in accommodating shift changes based on…