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Jones Lang LaSalle

Advises on and manages commercial real estate

HVAC Specialist - VRF Systems

HVAC & Building SystemsConfirmed live in the last 24 hours
Full-time

About the Job

Requirements

  • Hold a current technical certification in HVAC systems from at least one recognized brand, such as Trane, Daikin, Samsung, LG, or Hisense.
  • Hold refrigerant-handling certification under Mexican regulation NOM-161-SEMARNAT.
  • Demonstrate proficiency with VRF systems, including indoor and outdoor units, centralized controls, and heat-recovery systems.
  • Have in-depth knowledge of sensors, transducers, and electronic control systems used in VRF equipment.
  • Be able to program and configure proprietary software for at least one recognized VRF brand.
  • Have experience diagnosing and interpreting error codes across multiple brands.
  • Know refrigeration principles, thermodynamic cycles, and inverter technology.
  • Be proficient with specialized HVAC tools, including digital manifolds, vacuum pumps, refrigerant recovery machines, electronic scales, leak detectors, multimeters, megohmmeters, electrical network analyzers, and welding equipment.
  • Have practical experience replacing compressors and major components.
  • Know different welding methods for working with copper and aluminum.
  • Have experience repairing coils.
  • Be available for frequent travel throughout Mexico.
  • Be available to work beyond scheduled hours, respond to emergencies at any time, rotate shifts, and cover coworkers' shifts when required.
  • Hold a valid driver's license.
  • Be able to work autonomously under pressure, communicate technical information clearly, adapt to different work environments, travel frequently, and comply with safety and HSE protocols.

Responsibilities

  • Diagnose, install, commission, and maintain VRF systems from recognized brands, including Trane, Daikin, Samsung, LG, Hisense, and Midea.
  • Perform preventive and corrective maintenance in accordance with manufacturer standards and industry best practices.
  • Respond to HVAC system emergencies and urgent issues to maintain client-facility operations.
  • Identify and resolve error codes in multi-brand VRF systems using specialized diagnostic tools.
  • Diagnose complex VRF system failures by analyzing sensors, electronic controls, and system components.
  • Replace compressors and major components in VRF, inverter, mini-split, multi-split, and chiller systems.
  • Repair aluminum and copper coils using specialized welding techniques.
  • Perform oxyacetylene, TIG, and MIG welding as required for interventions.
  • Handle refrigerants responsibly in compliance with environmental regulations, including recovery, evacuation, charging, and recycling.
  • Use manufacturer diagnostic and programming software to configure and adjust system parameters.
  • Interpret electrical schematics, refrigeration diagrams, and HVAC equipment specifications.
  • Train JLL technicians in VRF technology and share technical knowledge and best practices.
  • Develop training materials and technical procedures to standardize VRF service.
  • Serve as an internal technical resource and consultant on VRF climate-control systems.
  • Mentor junior technicians in diagnosing and repairing complex HVAC systems.
  • Document technical interventions, including diagnoses, repairs, and improvement recommendations.
  • Coordinate with suppliers and manufacturers to ensure availability of spare parts and specialized technical support.
  • Maintain inventory and control of specialized tools used for technical interventions.

Desired Qualifications

  • Additional certifications across multiple HVAC VRF brands.
  • Practical experience with inverter systems and industrial chillers.
  • Knowledge of repairing electronic boards in VRF, inverter, mini-split, multi-split, and chiller systems.
  • Knowledge of building management systems (BMS) and communication protocols including BACnet, Modbus, and LonWorks.
  • Three to five years of experience maintaining commercial and industrial HVAC systems.
  • Previous experience delivering technical training or staff development.

About the Company

Jones Lang LaSalle

Advises on and manages commercial real estate

Jones Lang LaSalle, known as JLL, advises property owners, occupiers and investors on commercial real estate worldwide. Its teams broker leases and property sales, arrange financing, value assets, manage buildings and workplaces, and oversee construction projects for businesses, institutions and governments. LaSalle Investment Management invests client capital in private property and real estate securities, while JLL Technologies develops workplace software and data tools. The company earns commissions, service fees, investment management fees and software revenue, with some client operating costs reimbursed through contracts. JLL took its current form through a 1999 merger and is headquartered in Chicago, Illinois.

Company size
10,001+
Company stage
IPO
Headquarters
Chicago, IL
Founded
1999

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