João Marques

Developed, modified, and maintained PLC, HMI, and automation software for industrial machines and production lines. Worked on machine integration, diagnostics, troubleshooting, commissioning support, and production reliability improvements.

Integrated robots, industrial cameras, and peripheral systems into automated production cells, and adapted automation logic and operator interfaces according to production and process requirements.

Experience with Siemens, Schneider Electric, Weintek, Omron, Yaskawa/Motoman, and Universal Robots platforms.

Developed ENERVIGIL, an open-source energy monitoring platform focused on data acquisition, processing, storage, and visualization.

Built a web-based system for integrating industrial measurement devices, organizing energy-related variables, storing time-series data, and presenting monitoring information through a browser interface.

Worked on backend development, frontend development, database integration, device communication, system architecture, Docker-based deployment, and technical documentation.

The project focuses on practical industrial use cases, local-first operation, extensibility, and integration with industrial communication protocols such as Modbus, OPC UA, and MQTT.

Worked in industrial maintenance and automation support within production environments, focusing on the diagnosis and resolution of machine operation issues.

Troubleshot faults involving sensors, actuators, controllers, electrical circuits, control components, and industrial equipment. Supported the analysis of machine behavior, identified possible causes of failures, and carried out corrective actions to restore normal operation.

Performed controller parameterization, automation adjustments, and small programming changes when required. Also supported technical improvements to industrial equipment, helping improve reliability, operation, and maintainability.