Fostin K.

With 4+ years of hands-on experience in embedded development, I deliver production-ready firmware and IoT infrastructure designed for stability, scalability and long-term maintainability. What clients can expect when working with me: - Clean, well-structured and maintainable embedded code - Reliable communication throughout the project lifecycle - Fast debugging and efficient problem solving - Scalable firmware architecture built for future expansion - Clear technical documentation and organized reporting - On-time delivery with attention to detail - Long-term technical support and troubleshooting assistance Technical Expertise: - Zephyr RTOS development - FreeRTOS development - Embedded firmware in C/C++ - nRF54, nRF52, STM32, ESP32, PIC, Arduino and Raspberry Pi - LoRa/LoRaWAN, BLE, WiFi, LTE, MQTT, TCP/IP, HTTP - UART, SPI, I2C, CAN, Modbus - Python and JavaScript for tooling, automation and integrations Services I Offer: - Custom embedded firmware development - Zephyr RTOS-based product development - FreeRTOS-based product development - LoRaWAN device and gateway integration - IoT backend deployment (ChirpStack, MQTT, Node-RED, ThingsBoard, Grafana) - Device monitoring and cloud connectivity - Driver development and hardware bring-up - System optimization and troubleshooting - Technical documentation and support Whether you need firmware for a new product, integration of IoT devices, or support scaling an existing system, I focus on delivering dependable solutions that work reliably in real-world environments. Let’s turn your idea into a robust connected product.