Atif Rafique

Embedded Software Engineer

Apr 2024 - Present • 2 yrs 3 mos

Developed production-grade embedded firmware, PCB hardware, and IoT solutions for industrial and construction applications. Responsibilities: - Developed BLE firmware for nRF52811 with 3-channel temperature logging, OTA updates, and secure BLE pairing - Implemented compact binary encoding and circular buffer for 30+ days on-device data storage - Designed custom BLE antenna PCB in KiCad with 20-meter coverage, power management, and manufacturing-ready files - Developed ESP32 firmware for industrial fan blade monitoring system with sensor integration and data acquisition - Implemented BLE/LoRa gateway cloud sync and IP68-rated enclosure integration - Built desktop applications in PyQt5 for device configuration, monitoring, and BLE communication Key Achievement: Delivered CRETO BLE concrete temperature sensor from firmware to PCB to field deployment — used in real construction sites with IP68 waterproofing and 30-day battery life.

Embedded Software Engineer

Aug 2022 - Apr 2024 • 1 yr 8 mos

Designed and developed embedded firmware and IoT systems for medical and wearable applications. Responsibilities: - Developed firmware for nRF5340 on Zephyr RTOS for smartwatch health monitoring - Integrated MAX30102 (SPO2/heart rate), MPU6050 (motion/steps), BMP280 (temperature/pressure) - Built Raspberry Pi-based blood sample analysis system using AS7262 color sensors and PCA9548 I2C multiplexer - Developed Flask backend with MySQL database and REST API for lab diagnostics - Implemented MQTT for real-time hardware-software communication - Automated sample handling using stepper motor control Key Achievement: Delivered a complete lab-grade biogas analysis system and wearable health monitoring firmware — both deployed in real medical and research environments.