Nimsara Thisal P.

IoT PRODUCT MAINTENANCE | ESP32, MQTT & CLOUD INTEGRATION Is your IoT device losing connectivity, sending unreliable sensor data, or struggling to communicate with your cloud backend? I help businesses build, troubleshoot, integrate, and maintain end-to-end IoT products, from device firmware and communication protocols to cloud services, backend APIs, databases, and web or mobile applications. WHAT I CAN HELP YOU WITH 1. IoT FIRMWARE & DEVICE INTEGRATION - ESP32 and ESP8266 firmware development and debugging - Sensor and actuator integration - Wi-Fi connectivity and reconnection handling - Device configuration and communication troubleshooting - Firmware improvements and feature updates 2. MQTT & DEVICE COMMUNICATION - MQTT client and broker integration - Device-to-cloud telemetry - JSON payload design and parsing - Connection recovery and message handling - Communication between devices, backends, and applications 3. IOT BACKEND & CLOUD INTEGRATION - REST API development and integration - Firebase and database integration - Cloud data ingestion and synchronization - Device data storage and retrieval - Backend services for connected products 4. WEB DASHBOARDS & MOBILE APPLICATIONS - Web dashboards for monitoring device status and sensor readings - React Native mobile application integration - Device configuration and status monitoring - Alerts, notifications, and application-to-device workflows 5. EXISTING IOT PRODUCT MAINTENANCE - Troubleshooting device connectivity and data synchronization - Fixing bugs in existing firmware and backend services - Improving error handling and communication reliability - Implementing feature enhancements - Testing, documentation, and technical handover MY ENGINEERING BACKGROUND I hold a BSc Engineering (Hons) degree in Computer Science and Engineering from the University of Moratuwa, Sri Lanka. Currently working as a Software Engineer at Air Arabia Group, I have professional experience in software development, backend systems, APIs, and application maintenance. Previously, I worked at Circles.Life Technologies and have also delivered freelance software and IoT-related projects. MY APPROACH - Understand your existing hardware and software architecture. - Identify the root cause or define the required functionality. - Agree on a clear scope and deliverables. - Implement and test the solution. - Provide relevant documentation and handover instructions. LET'S DISCUSS YOUR IOT PROJECT Whether you need help troubleshooting an existing device, integrating firmware with a cloud backend, or maintaining a connected product, I would be happy to discuss your requirements.