Design and architect enterprise-level software systems, managing the complete project lifecycle for end-to-end systems. Manage project plans, including task distribution, schedule estimation, and team management (team size of 5). Train team members and oversee bug handling to ensure performance, scalability, and stability. Conduct code reviews, optimize, and clean code adhering to development standards and conventions. Develop an access control system using facial recognition technology to unlock doors. Create and fine-tune AI models for object and human detection to count the number of people in a building. Develop middleware to control cameras and CCTV using vendor APIs and SDKs, handling triggered events such as motion and face detection. Research, develop, and integrate communication protocols using third-party cloud APIs like TTLock Cloud, Tuya Cloud, SmartThings Cloud, and Google Cloud for device control and data collection. Develop RESTful APIs for seamless mobile and web integration. Build and deploy Google Cloud Functions to control IoT devices via Google Assistant. Implement file servers using NodeJs with cloud databases like MongoDB and PostgresSQL, and local servers using MySQL. Develop a cloud platform for smart home systems utilizing open-source software to manage millions of users and IoT devices. Create an OTA server for remote updates using shell scripts (APT). Develop an intercom server to facilitate video calls among web and mobile app users. Research and implement a VPN solution for seamless communication among users in different networks. Build mobile apps for API testing and design test cases to evaluate backend APIs. Work on VSaaS by building and customizing a VMS desktop app using Network Optix source for the VSaaS platform.

Build and optimize a machine learning model for few-shot learning tasks on constrained datasets. Implement and evaluate models for speech recognition, human gesture detection, and image classification tasks. Reduce model size for deployment in IoT devices. Develop drivers and firmware for low-power IoT devices equipped with wireless transceivers. Write and test radio drivers, MAC layer protocols, and algorithms. Upload binary files to IoT devices for experimental validation. Analyze academic papers and propose new ideas for project enhancement.

Develop, maintain, and troubleshoot software and Android apps for Samsung mobile devices. Cooperate with chipset vendors such as Qualcomm, Marvell, and Samsung Exynos to integrate TrustZone, BSP, security modules, and apply Linux patches for Android devices. Sign public and private keys for trusted applications using sign server systems and Python scripts in a Linux environment. Design test cases and verify security patches to update the Linux kernel and secure OS for Android systems. Integrate and maintain security modules like keymaster, gatekeeper, fingerprint, and lock screen in the Android OS. Build binaries, firmware, and release new software versions for smartphones and tablets. Run the Compatibility Test Suite (CTS) to detect issues and compatibility problems when new Android versions are released.