Senior Commercial HVAC Technician & BAS Specialist

JLL; Round Rock (TX); On-site; USD 52,000 - 74,000; Full time

Job summary

JLL in Round Rock, TX is seeking an experienced HVAC Technician to maintain critical building systems across commercial properties. You will diagnose, repair, and service chillers, boilers, air handling units, and BAS, working independently and with a team to ensure comfort and efficiency for occupants.

Required qualifications include a high school diploma or equivalent, HVAC training, and EPA 608 Universal Certification; 5+ years of hands-on experience is preferred.

Qualifications

• HVAC knowledge including mechanical, electrical, and controls
• Ability to read and interpret blueprints, schematics, and manuals
• Familiarity with building automation systems (BAS) and energy efficiency practices
• Physically capable of lifting up to 50 pounds and working in confined spaces

Responsibilities

• Perform preventive maintenance, inspections, and testing on HVAC equipment such as chillers, boilers, cooling towers, air handlers, and rooftops
• Diagnose and repair mechanical, electrical, and control system issues to minimize downtime
• Respond to service calls and emergencies with effective troubleshooting
• Monitor and adjust BAS to maintain temperature control and energy standards
• Document maintenance activities using CMMS and coordinate with teams for major repairs
• Collaborate with engineers, managers, and contractors for system upgrades
• Ensure safety, codes, and environmental regulations are followed

Skills

HVAC knowledge

Blueprint reading

BAS familiarity

Physical stamina

Education

High school diploma or equivalent

HVAC training program/apprenticeship

EPA 608 Universal Certification

Tools

CMMS

Job description

JLL in Round Rock, TX is seeking an experienced HVAC Technician to maintain critical building systems across commercial properties. You will diagnose, repair, and service chillers, boilers, air handling units, and BAS, working independently and with a team to ensure comfort and efficiency for occupants.

Required qualifications include a high school diploma or equivalent, HVAC training, and EPA 608 Universal Certification; 5+ years of hands-on experience is preferred.