Official maintainer for the Zephyr RTOS project (Linux Foundation), responsible for the Biometrics Subsystem and board support across ARM and RISC-V platforms. Physics undergraduate and Embedded Systems Engineer specializing in RTOS kernel development, Industrial IoT, and autonomous systems.

Research Assistant at SUST EEE Department, focusing on autonomous navigation, energy-efficient building automation, and real-world embedded applications for medical and industrial systems.

• 🔧 17+ merged PRs to Zephyr RTOS mainline
• 🛡️ Subsystem Maintainer for Biometrics (first authentication framework in Zephyr)
• 📦 Active maintainer for 9 board support packages across ARM/RISC-V/Xtensa
• 🌍 Serving 5,000+ developers globally through upstream contributions
• 🏆 Zephyr Contributors Team member since 2025

• 🤖 ROS2 Autonomous Navigation with Jetson Orin + STM32F4 sensor fusion
• 📡 Radar occupancy detection for government building energy optimization
• 🔐 RFID attendance systems for rural Bangladesh educational institutions
• 🎯 Smart display system with custom Zephyr RTOS drivers and OTA updates

Biometrics Subsystem Maintainer & Triage Member

🚧 Subsystem Architecture

• #100139 - Biometrics Subsystem: Authored and maintaining Zephyr's first biometric authentication framework. Designed complete API, driver abstractions, and reference implementations for ZFM-x0 & GT-5x fingerprint sensors.

🔌 Device Drivers

• #97921 - HUB12 LED Display: Production-grade display driver for high-refresh rate LED matrices with complete API and DeviceTree bindings.
• #98445 - HUB12 Chaining: Horizontal chaining support enabling scalable multi-panel LED displays.
• #96510 - TM1637 Controller: 7-segment display driver for auxdisplay subsystem with brightness control and segment manipulation.

💻 Board Support (ARM & RISC-V)

• STM32 Series: #91886 - STM32F446 • #97435 - STM32WB55 (BLE) • #97553 - STM32G030
• ESP32 Series: #97670 - C3-Mini • #97578 - C6-Mini • #97720 - S3-Mini • #96687 - S3-B

➡️ View All 17+ Pull Requests

Published production-ready sensor and display libraries:

• RD-03D Radar: mmWave radar library with signal filtering algorithms
• TM1637 Display: Low-level bit-banging driver for 7-segment displays

Research Assistant • SUST Dept. of Electrical & Electronic Engineering • Jun 2025 - Present

• Autonomous Vehicle Navigation: ROS2-based navigation stack on Jetson Orin with LiDAR sensor fusion and custom STM32F4 firmware for real-time motor control via micro-ROS.
• Government Energy Optimization: IoT-enabled smart relay systems for cost reduction in government buildings using ESP32 and MQTT.
• Radar Occupancy Detection: RD-03D radar algorithms for automated energy efficiency in public facilities.
• Educational Technology: RFID-based attendance management systems for rural schools in Bangladesh.

Domain	Technologies
Embedded Systems	Zephyr RTOS (Maintainer), FreeRTOS, STM32 HAL, ESP-IDF, Embedded Linux, Embassy-rs
Languages
Hardware Platforms	STM32 (H7/H5/F4/WB), ESP32 (S3/C6/C3), Jetson Orin, RISC-V, ARM Cortex-M
Protocols & IoT	I2C, SPI, UART, MQTT, BLE, LoRa, WiFi, micro-ROS, TCP/IP
Sensors & Peripherals	LiDAR, mmWave Radar, Fingerprint Sensors, Environmental Sensors, LED Matrices
Tools & Platforms	CMake, DeviceTree, Kconfig, KiCAD, OpenOCD, GDB, ROS2, Docker, Git, Linux
Web/Cloud	SvelteKit, Next.js, Django (for IoT Dashboards & Tooling)

• Zephyr Contributors Team, Official Member (2025) - Linux Foundation
• Biometrics Subsystem Maintainer, Zephyr RTOS (2026)
• Bronze Medal, International University Physics Competition 2024
  • Modeled space station air evacuation using fluid dynamics (Poiseuille's Law)

Production IoT-enabled display running on ESP32-S3 with complete Zephyr RTOS firmware stack. Features custom HUB12 LED matrix driver (upstreamed to Zephyr mainline), secure OTA updates with RSA-signed binaries, MQTT communication over TLS 1.3, and WiFi provisioning via captive portal.

Technologies: Zephyr RTOS, ESP32, HUB12 LED Matrix, MQTT, mbedTLS, SNTP, Custom Font Rendering
Demo video forthcoming