External service calls; reading and interpretation of technical drawings; chiller maintenance; brazing of copper and stainless steel piping; vacuum application; refrigerant charge balancing; hydraulic balancing; parameter adjustments and electrical testing on chiller control panels (voltage: 220/380 V and 440 V); chiller startup; evaluation of equipment for maintenance; work at heights. **Requirements:** • Technical diploma in mechanical/refrigeration engineering or mechatronics; • Ability to read and interpret technical drawings; • Electrical or electronics training – knowledge of electrical control systems and automation; • Preferred: specialized training in air conditioning or industrial refrigeration; Employment Type: Full-time CLT Salary: R$3,356.82 – R$4,184.97 per month Benefits: * Medical insurance * Dental insurance * Meal allowance * Transportation allowance