We are looking for an Instrumentation Technician to perform maintenance at the Abreu e Lima Refinery (RNEST). **The professional will be responsible for:** Performing preventive and corrective maintenance on level, pressure, temperature, flow, fire and gas detection systems, etc. Carrying out calibration, testing, and adjustments on field instruments. Diagnosing and troubleshooting instrumentation system failures. Performing instrumentation activities on Foundation Fieldbus and HART communication networks. Performing maintenance, issuing diagnostics, preparing reports, and providing solutions for valves. Performing maintenance on sensors and control systems for steam turbines and large machinery. Ensuring reliability and operational safety of instrumentation systems. **Requirements:** Technical degree in Instrumentation, Industrial Automation, Electronics, or related fields; Active CFT certification; Knowledge of Foundation Fieldbus and HART networks; Experience in maintenance of level, pressure, and flow instruments; Availability to work in Ipojuca – PE; Minimum 3 years of experience in the position; **Advantageous:** Experience in industrial environments (refinery, petrochemical, pulp \& paper, energy). Additional knowledge in control loop analysis and calibration.