Knowledge of refrigeration and air conditioning systems: ability to identify, install, operate, and maintain air conditioning systems (residential, commercial, and industrial). Reading and interpretation of electrical diagrams and technical manuals: ability to understand diagrams for fault diagnosis and correct repairs; Handling of maintenance tools and measuring instruments; Proper use of manometers, multimeters, vacuum gauges, vacuum pumps, among others; Refrigeration and handling of refrigerant gases; Knowledge of refrigerant types (R-22, R-410A, R-134a, etc.), handling and disposal regulations, and charging and recovery procedures. Preventive and corrective maintenance techniques: ability to perform inspections, cleaning, component replacement, and adjustments to ensure proper equipment operation and extend service life. Job type: Full-time CLT position Salary: BRL 3,000.00 – BRL 3,350.00 per month Benefits: * Medical assistance * Life insurance * Meal allowance * Transportation allowance