R&D internship focused on embedded connectivity, cellular IoT firmware, telemetry pipelines, and monitoring dashboards.

• Developed C/C++ firmware for ESP32-based edge devices with A7680C 4G modem AT-command handling, MQTT/MQTTS, HTTP, SMTP, SMS, and call support.
• Built device-to-cloud telemetry pipelines using MQTT/HTTP and structured JSON payloads for live monitoring, alerts, remote status reporting, and downstream analysis.
• Configured ThingsBoard dashboards and custom web portals; used MQTT Explorer, HiveMQ, Grafana basics, and GitHub Actions/CI practice for topic testing, payload validation, and telemetry debugging.

Inplant training on electronics manufacturing, factory automation projects, production data flow, testing, and NPI-related workflows.

• Built C/C++ based automation and embedded-control projects for a manufacturing environment, including an Automated Guided Vehicle, flame-treatment automation upgrade, and automated PCB conveyor system.
• Gained hands-on exposure to production data flow, SMT/THT manufacturing, ICT and functional testing, SPEA 3030/4050 test systems, FactoryLogix workflows, and NPI processes.
• Worked with mechatronic prototypes using Arduino, motor drivers, sensors, and manufacturing-floor reliability constraints.