HVAC Technician III, Commercial

Job Description The HVAC Technician III is a senior-level commercial HVAC technician responsible for performing advanced preventive maintenance, troubleshooting, repair, and replacement support on commercial and mission-critical HVAC systems. This role requires strong independent diagnostic ability, sound judgment in the field, and the ability to support complex commercial environments with minimal supervision. The HVAC Technician III is a senior-level commercial HVAC technician responsible for performing advanced preventive maintenance, troubleshooting, repair, and replacement support on commercial and mission-critical HVAC systems. This role requires strong independent diagnostic ability, sound judgment in the field, and the ability to support complex commercial environments with minimal supervision. This position supports commercial facilities across the DC / Northern Virginia market, including office buildings, institutional facilities, data centers, mission-critical environments, and hyperscale facilities where applicable. Pay: 45.00 - 60.00/hr. The pay listed is the hourly range for this position. A specific offer will vary based on applicant’s experience, skills, abilities, geographic location, and alignment with market data. Work Environment: Field-based commercial service role. Dispatch from home with company vehicle. Service area includes Washington, DC, Alexandria, Northern Virginia, and surrounding DMV locations. Work may include rooftops, mechanical rooms, commercial buildings, institutional facilities, data centers, server rooms, and mission-critical environments. Overtime, on-call rotation, and emergency response may be required based on business needs. Responsibilities Perform advanced troubleshooting, diagnostics, repair, and preventive maintenance on commercial HVAC systems. Service and support equipment including: RTUs / rooftop units AHUs / air handling units VAV systems boilers and hydronic systems pumps and motors chilled water systems cooling towers VRF / VRV systems BAS / controls-supported systems CRAC units / precision cooling equipment mission-critical and data center cooling systems Diagnose mechanical, electrical, refrigeration, airflow, hydronic, and controls-related issues. Perform or support compressor replacements, coil replacements, leak detection, refrigerant recovery/charging, pump-downs, and system performance testing. Support PMs and repairs in server rooms, data centers, hyperscale environments, and other mission‑critical spaces where uptime and reliability are essential. Read and interpret blueprints, wiring diagrams, schematics, equipment manuals, and BAS trend data. Coordinate with service managers, dispatch, customers, controls technicians, and project teams as needed. Document work performed, findings, recommendations, parts used, and follow-up needs accurately. Follow all safety procedures, customer site requirements, lockout/tagout, PPE, and refrigerant handling standards. Mentor or support lower-level technicians when needed. Qualifications 5+ years of HVAC field experience, with strong commercial service background. EPA 608 certification required. Valid driver’s license with acceptable driving record. Strong independent troubleshooting ability across commercial HVAC systems. Experience servicing commercial equipment such as RTUs, AHUs, VAVs, boilers, pumps, chilled water systems, and cooling towers. Ability to work independently in a field-based service environment. Strong understanding of refrigeration, electrical, airflow, hydronic, and mechanical system fundamentals. Ability to communicate professionally with customers, service leadership, and internal teams. Preferred Qualificatoins: Experience with mission‑critical or data center HVAC systems. Experience with CRAC units, Liebert, APC, server room cooling, or precision cooling equipment. Experience supporting hyperscale facilities or high‑uptime environments. Chiller, boiler, BAS / controls, or central plant experience. Experience with Siemens, Johnson Controls, Trane, Metasys, Honeywell, or similar BAS platforms. Journeyman, Master HVAC, stationary engineer, or related trade license. Experience mentoring junior technicians. OSHA 10 / OSHA 30 or related safety training. About Us ABM (NYSE: ABM) is one of the world’s largest providers of integrated facility, engineering, and infrastructure solutions. Every day, our over 100,000 team members deliver essential services that make spaces cleaner, safer, and efficient, enhancing the overall occupant experience. ABM serves a wide range of market sectors including commercial real estate, aviation, education, mission critical, and manufacturing and distribution. With over $8 billion in annual revenue and a blue-chip client base, ABM delivers innovative technologies and sustainable solutions that enhance facilities and empower clients to achieve their goals. Committed to creating smarter, more connected spaces, ABM is investing in the future to meet evolving challenges and build a healthier, thriving world. ABM: Driving possibility, together. ABM is an Equal Employment Opportunity (EEO) employer that does not discriminate on the basis of any trait or characteristic protected by applicable federal, state, or local law, including disability and protected veteran status. ABM is committed to working with and providing reasonable accommodation to individuals with disabilities. If you have a disability and need assistance in completing the employment application, please call View phone number on click.appcast.io. We will provide you with assistance and make a determination on your request for reasonable accommodation on a case‑by‑case basis. ABM participates in the U.S. Department of Homeland Security E-Verify program. E-Verify is an internet-based system used to electronically confirm employment eligibility. ABM is a military-friendly company proudly employing thousands of men and women who have served in the U.S. military. With ABM, you’ll have access to a world-class training program and ample opportunities to use the skills you developed while serving our country. Whether you’re looking for a frontline or professional position, you can find post‑military career opportunities across ABM. #J-18808-Ljbffr ABM Industries