Paresh A.

Electronics & Communications Engineer with 12 years of experience in hardware and firmware development. Used to work as a Firmware staff engineer and team lead and Principal Engineer, managing technical discovery, project scoping, and end-to-end delivery for global brands. Core Service Offerings: Electronics & Firmware Architecture - Wireless Protocols: Expert in Amazon Sidewalk (FSK/CSS), LoRaWAN (LBM/Node), BLE/Bluetooth, WiFi, Zigbee, RF, RFID, and NFC. - Low power firmware and hardware development - Firmware Frameworks: Zephyr RTOS, FreeRTOS, TI-RTOS, and Bare-metal programming. - Wired Communication: RS485 (Modbus), RS232, CAN, Ethernet, USB, I2C, SPI, UART, and Power Line Communication. - Microcontrollers: STM32 (ARM Cortex), nRF52/nRF54, ESP32/ESP8266, SiLabs EFR32, NXP (LPC), Atmel (AVR/ATmega), PIC, and STM8. - Hardware Design: Schematic capture and PCB design in Altium Designer, KiCad, and Eagle; including BOM optimization and enclosure design. - Hardware Interfacing: Brushless/DC/Stepper/Servo motors, LCD/TFT/OLED/Touch displays, and P10/P8 LED matrix displays. Full-Stack & Software Development - Web & Backend: Node.js, React.js, and Cloud server integration via MQTT/HTTP. - Mobile Apps: Native Android development, React Native, and Flutter hybrid development. - Programming Languages: C/C++, Arduino, Java, JavaScript, Python. Specialized IoT Solutions - Security & Maintenance: Custom FUOTA (Over-The-Air updates), Secure Boot, TrustZone, Secure debug, Secure mass manufacturing, Zero trust architecture, Secure communication and Threat Modeling. - Recovery & Scaling: Restructuring legacy codebases, porting firmware during chip shortages, and leading technical teams through mass manufacturing. - Technical Strategy: Project estimations, SOW crafting, and roadmap development for startups and Fortune 500s. Strategic Product Leadership - Technical Discovery: Translating business vision into technical requirements and practical roadmaps. - Full-Stack Integration: Coordinating firmware with Cloud (Node.js/MQTT) and Mobile App (Android/React Native) layers. - Mass Manufacturing: Developing test firmware and production-line validation tools. Working Style: Clean, layered, and modular code and accompaning necessary documentation designed for long-term maintenance. Expert in Solution architecture, SOW crafting, and milestone management. Let's discuss your project. Message me with a brief overview and I will respond within 8 hours.