HVAC Controls Technician 4 - (U) TS/SCI - Washington, DC

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 must meet eligibility requirements, including U.S. Citizenship, for access to classified information. Active Top-Secret/SCI with polygraph clearance required. License/Certification EPA Universal Certification required or ability to obtain. 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. Qualifications 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. Preferred Skills 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. Benefits A competitive salary Medical, dental, vision, life, and disability insurance Paid time off Tuition reimbursement 401k Retirement Plan Military Reserve pay offset Paid maternity leave 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, 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), 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. Pay Range USD $50.00 - USD $60.00 /Hr. #J-18808-Ljbffr M.C. Dean, Inc.