Join JLL as an HVAC Mechanic / Building Engineer, where you’ll play a critical role in operating, maintaining, troubleshooting, and repairing Building Automation Systems (BAS), HVAC/R, mechanical, electrical, and plumbing systems within assigned facilities. This position is essential to JLL’s commitment to shaping the future of real estate through innovation, sustainability, and operational excellence by maximizing equipment efficiency, minimizing downtime, ensuring safe operations, and supporting client occupancy and operational needs. You’ll be responsible for troubleshooting and repairing air handling units, exhaust fans, fume hoods, fan coil units, reheat coils, and related systems while responding to customer service requests related to indoor temperature and comfort issues. This is an excellent opportunity for experienced HVAC professionals who excel at preventive maintenance, technical problem-solving, and customer service while supporting professional growth, well-being, and career advancement in a diverse and inclusive workplace environment. This position may provide floating coverage with shifts determined weekly to support PTO and planned absences for 12-hour operators.