about me
Firmware Developer | PCB Designer | C/C++ | Product Developer
Ten years of experience in firmware & hardware development for industrial & consumer electronics. IoT-based product development with C/C++ for various MCUs with RTOS, bare-metal, and Linux SDKs. Proficient in debugging hardware, project documentation, project management, and teamwork.
what i do
Firmware Developer
Firmware for ARM, AVR, ESP32 and RISC-V based MCUs using RTOS, bare-metal or Embedded Linux (Yocto, OpenWRT) for industrial & consumer electronics.
PCB Designer
High-speed & mixed-signal PCB design in Altium for power electronics, IoT nodes and consumer devices, from schematic to bring-up.
IoT Product Developer
End-to-end IoT product development over Cellular, Wi-Fi, CAN, MODBUS & RS-485 with secure MQTT and cloud device management.
Debugging & Project Management
Hardware & firmware debugging, project documentation, and cross-functional teamwork to take products from concept to production.
key skills
FIRMWARE & HARDWARE
EMBEDDED LINUX & RTOS
IOT: CELLULAR & WI-FI
POWER ELECTRONICS
CAN, MODBUS, RS-485
PCB & DEBUGGING
Worked At
fun fact
10 Years Experience
5 Companies Served
1000+ Units Production
2 Innovation Awards
resume
WORK HISTORY
May 2024 - Present
Electronics System Developer
MeldCX, Cremorne, Australia
AI and intelligent edge technologies service provider.
- Developed firmware to upgrade various products from AVR to STM32 MCU family with rich features
- MCU-based programmable multichannel CC/CV controller design for kiosk hardware
- Secure boot and license-based feature control implementation with ARM MCU
- Cloud device health & status monitoring and service scheduling with secure MQTT
- Embedded Linux based device remote debugging feature implementation
Feb 2023 - April 2024
Remote Embedded Firmware Developer
Smart Lifestyle Australia, Truganina, Victoria (Concern of Cynergy AU)
Energy-efficient product manufacturer for the Australian market aiming to become a global green-energy superpower.
- Led development of an IoT backbone on AWS MQTT to connect existing product lines using RISC-V based Wi-Fi and BLE communication MCUs
- Developed a Linux-based application SDK for device application development on BL60x Wi-Fi & BLE MCUs
- Prepared RTOS based Wi-Fi and NimBLE firmware platform for ESP32 MCUs using ESP-IDF for IoT nodes
- Integrated existing Heat Pump water heater, Air Conditioner, Smart Plug and Hybrid battery system into the IoT network infrastructure
2021 - 2023
Electronics Designer and Embedded Firmware Developer
Walton Digi-Tech Industries Ltd., Dhaka, Bangladesh
The largest electronics manufacturer in Bangladesh, with $850 million annual revenue and exports to 19 countries.
- Hardware and firmware development for 300 & 1200 Mbps routers with NAS, MQTT server & IoT hub
- Air Conditioner hardware and firmware design with voice recognition module for hands-free access, integrated with Walton IoT network
- Hardware and firmware development of an access control device with Embedded Linux
- Upgraded conventional rice cookers to smart IoT multi-cookers with Walton IoT service at 20% lower cost using STM8 value line MCU
- Designed a smart Wi-Fi connected biometric safe with capacitive touch keypad, 700-day battery life, and redundant USB-C power input
2018 - 2021
Embedded System Engineer
1‑TouchBD, Dhaka, Bangladesh
Largest smart security service provider in Bangladesh, serving the Bangladesh Army, Bangladesh Police, and DGDP.
- Implemented a Smart ID Card for the Bangladesh Army to consolidate multiple cards used across military services and facilities
- Designed system architecture for data collection, validation, management and ID card printing software for army officials
- Implemented a node-based real-time database across 12 cantonments and army data centers for hassle-free access
- Implemented an AI-based security system at Bangladesh Police HQ
- Developed a low-level Linux device driver for a handheld UHF reader
- Developed firmware and hardware for a ZigBee-based low-power automation system
June 2017 - November 2017
Research Development Engineering Intern
Samsung R&D Institute Bangladesh, Dhaka, Bangladesh
Mobile app development, commercialization, platform verification, testing and business support for South-West Asia & local market.
- Developed directional wireless power transfer algorithms from a fixed position to reduce point-to-point transmission to IoT nodes
- Developed a hardware prototype (POC) for US patent submission as a new innovation, awarded 3 US patents against the innovation from Samsung Electronics Co. Ltd.
EDUCATION
2018
BSc in Electronics and Telecommunications
United International University, Bangladesh
AWARDS
2016
A2i Innovation Fund
Won the A2i Innovation Fund for development of a low-cost refreshable braille display.
2017
Best Young Inventor Award
Won the Best Young Inventor Award for upgrading the Smart Cane System at the Digital Innovation Fair.
