HVAC Controls Technician 4 - TS/SCI - Washington, DC

M.C. Dean, Inc•Washington, DC

5h•$50 - $60

About The Position

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. We are seeking a skilled HVAC Technician with hands-on Niagara (Tridium) experience to support, troubleshoot, and maintain building mechanical systems and building automation infrastructure. The ideal candidate has strong technical expertise in HVAC operations, controls integration, and BAS networked environments.

Requirements

High school diploma or GED required.
Minimum of 8 years of related experience, including at least 5 years working in a job shop environment with hands-on electrical and controls experience.
At least 5 years of HVAC maintenance, service, or controls experience.
Working knowledge of Niagara AX or Niagara N4, including system navigation, basic programming adjustments, alarm management, and trend analysis.
Strong understanding of HVAC control theory, including PID loops and sequence of operations.
Ability to read and interpret technical schematics, wiring diagrams, and control drawings.
Experience with low-voltage control systems; familiarity with BACnet, Modbus, or LonWorks preferred.
EPA Universal Certification required or ability to obtain.
Demonstrated problem-solving skills and the ability to work independently in critical environments.
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; Active Top-Secret/SCI with polygraph clearance required.

Nice To Haves

Niagara N4 certification (Niagara Technical Certification or similar).
Experience with enterprise BAS systems, dashboards, and graphics updates.
Familiarity with mechanical plant operations (chillers, boilers, pumps).
Experience in government, data centers, healthcare, or mission-critical facilities.

Responsibilities

Perform preventive and corrective maintenance on HVAC equipment, including air handlers, VAVs, heat pumps, chillers, boilers, exhaust systems, and related mechanical components.
Troubleshoot system performance issues using Niagara-based Building Automation Systems (Niagara AX/N4).
Monitor, adjust, and optimize BAS schedules, setpoints, alarms, and equipment sequences.
Perform field-level diagnostics on sensors, actuators, controllers, VFDs, and communication wiring.
Assist with BAS integrations, point-to-point testing, and commissioning activities.
Interpret mechanical, electrical, and control drawings to support repair and upgrade actions.
Work with engineering and controls teams to implement system improvements and energy‑efficiency strategies.
Document maintenance actions, system adjustments, and control changes in CMMS/BAS logs.
Maintain compliance with safety policies, building codes, and operational standards.
Collaborate with facility managers, contractors, and project teams to support maintenance or installation projects.