HVAC Technician - Fairfax, VA Security Clearance

Position: HVAC Technician 1 - Fairfax, VA with Security Clearance
Overview About M.C. Dean 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 may meet eligibility requirements, including U.S. Citizenship, for access to classified information;
Ability to obtain and maintain a Top Secret clearance. License/Certification Requirement:
* Current CFC/EPA Universal Certification Responsibilities Our team provides a full-service solution for mechanical equipment and systems maintenance and installation. Our mission-critical services will meet our customer's needs whether they are using a full-service, monthly, or quarterly based service contract. Our customers consist of mostly government-based facilities but also include privately-owned and commercially operated businesses. Preventive and Corrective Maintenance:
* Air Cooled Chillers

* Air Handling Units

* Boilers

* Cooling Towers

* Data Center Cooling

* Exhaust and Filtration

* Heat Exchangers

* Heat Pumps

* Humidification

* Piping repairs

* Pumps

* Rooftop Units

* Variable Air Volume Systems

* Variable Frequency Drives (VFD)

* Walk-in Coolers and Freezers Projects:
* AC Unit installs

* Air-cooled chiller installation

* Boiler overhauls and replacements

* Commercial water heater installation

* Pump rebuilds and installation - water cooled and direct expansion. Qualifications
* High school diploma or GED and 3+ years of commercial HVAC experience; or 1+ year of experience with an associate degree.

* Commercial HVAC experience as a truck-based service technician.

* Experience working with complex HVAC systems including chillers, boilers, package units, AHUs, and VAV systems (direct digital, pneumatic, and automated controls).

* Completion of an HVAC technical training program or recognized apprenticeship (preferred).

* Journeyman License or ability to obtain one per program standards (within 1 year if not currently held).

* Current CFC/EPA Universal Certification.

* Holistic understanding of mechanical equipment and HVAC design in commercial and industrial environments.

* HVAC OEM factory training or experience with Trane, Liebert, Stulz, and other major brands.

* Ability to obtain and maintain a Top Secret clearance (applicants will undergo a government background investigation).

* Requires a Valid driver's license. This position may require ongoing or intermittent use of a company vehicle.
* Strong understanding of HVAC tools, machines, and their proper maintenance.

* Proficiency in using hand tools and test equipment to perform diagnostic and repair work.

* Ability to complete timely documentation including maintenance reports, service tickets, and daily safety briefings.

* Excellent written and verbal communication skills in English.

* Willingness to work nights, weekends, and participate in a 24/7 on-call rotation.

* Ability to travel occasionally outside normal working areas; may require limited overnight travel.

* Basic computer skills including Microsoft Office applications.

* Ability to work independently, resourcefully, and safely.

Preferred experience:

* Advanced troubleshooting skills down to the component level on boilers, chillers, AHUs, VAVs, heat pumps, and CRAC units.

* Ability to read and interpret mechanical drawings, schematics, and system plans.

*…