• Designed and developed microservices oriented Fin-Tech system for VISA PREPAID card and card related services.• Designed, developed, and managed Fin-Tech Android apps that manages VISA PREPAID card and provides various services through the VISA PREPAID card.• Designed and developed Android app and back-end system for telecom services.

• Designed and developed Android video streaming app for Android TV box.• Designed and developed Android app for VoIP service based on PJSIP stack.• Designed and developed RESTful APIs for various web apps frontend and Android apps. • Worked on Android based digital signage application to display ad/menus for customers.

• Developed web application, desktop application and Android app for Dairy Queen fast food restaurant franchise to manage daily business, payroll, and asset management.• Developed web application for Golden Chick fast food restaurant franchise to computerize daily business, payroll and financial management. • Developed web based Procurement PunchOut application for Dallas Independent School District (DISD).• Developed new features of RingTel Pinless web application and developed Android app to use the service from mobile. • Developed network traffic logging driver using Windows filtering platform (WFP) that transfer collected data to remote system for storage and analysis.• Developed multi-threaded remote codec control server/daemon (RCCD) to communicate with the audio system in Linux embedded Gumstix board for automobile.• Implemented RCC protocol and developed desktop and Android app to control audio system using RCC protocol over TCP/IP and Bluetooth.

• Developed web application to manage daily business centrally for multiple small businesses.• Developed, implemented features, support and improvement of Graphical Development Environment (GDE) software and other software for Texas Instruments, Inc. USA.• Developed and updated various software to be used by the Neuroscience research lab at Northwestern University, USA.• Improved image rendering and synchronization of rendered image for online piano project.• Implemented new audio sampling rates support for Bi-Quad audio filter generating software.