Senior Building Systems Engineer - Onsite HVAC & Controls

Facade Today; Chattanooga, Northern (TN, KY); Hybrid; USD 60,000 - 90,000; Full time

Job summary

JLL is seeking a Sr. Operating Engineer to serve as the technical backbone of our facility operations across commercial properties. This hands-on role focuses on HVAC, electrical, plumbing, and building systems to maintain safe, efficient environments for tenants.

You will monitor BAS, respond to alarms, perform preventive and corrective maintenance, manage CMMS work orders, and coordinate with vendors to resolve issues while maintaining strong safety practices and tenant satisfaction.

Qualifications

• High School Diploma or equivalent.
• Universal CFC certification.
• Electrical and/or plumbing technician certification.
• 4–6 years of technical experience in commercial building engineering with HVAC, plumbing, electrical systems, and controls.
• Physical ability to lift 50 pounds and perform tasks requiring standing, walking, and climbing.
• Proficiency with Microsoft Office Suite, CMMS, and multi-email accounts.

Responsibilities

• Perform preventive and corrective maintenance on mechanical, electrical, plumbing, and HVAC systems including chillers, cooling towers, and BAS.
• Monitor BAS, respond to alarms, and conduct rounds to identify issues before escalation.
• Manage work orders in CMMS to ensure timely completion and accurate documentation.
• Handle repairs from plumbing fixtures to electrical components while maintaining thorough records.
• Provide customer service to tenants and coordinate with vendors for specialized repairs; participate in on-call rotation.

Skills

HVAC systems

Electrical systems

Plumbing systems

Maintenance planning

Safety compliance

Education

High School Diploma

CFC Certification

Electrical/Plumbing Technician Certification

Tools

CMMS platforms

Microsoft Office

Job description

JLL is seeking a Sr. Operating Engineer to serve as the technical backbone of our facility operations across commercial properties. This hands-on role focuses on HVAC, electrical, plumbing, and building systems to maintain safe, efficient environments for tenants.

You will monitor BAS, respond to alarms, perform preventive and corrective maintenance, manage CMMS work orders, and coordinate with vendors to resolve issues while maintaining strong safety practices and tenant satisfaction.