Graduate Research Assistant

University of Maryland, Baltimore County, USA | February 2023 – Present

• Design a framework using Randomized Smoothing Defense to retrieve original audio after perturbing it by different attacks on edge devices like Jetson Nano and Raspberry Pi.

• Space science for the evolution of galaxies, where we have developed a multi-stage deep learning framework to jointly learn representation from discrete and continuous luminosities.

• Federated learning for computational health care, where we have benchmarked the performance of pseudo-value-based deep learning models FedPseudo and Fedora against all existing survival models in federated settings.  

Graduate Research Assistant

Network & ICT Applications Lab, Japan. | February 2019 – January 2023

• Designed three novel feature extraction techniques, including stylometric features, TF-IDF, and word embeddings, to capture the writing style of different authors that works for any language. 

• Developed a comprehensive set of techniques for automatic author profiling and content analysis from social media Bangla text by building deep learning models. 

Lead Research & Development Engineer

ERA InfoTech Ltd., Bangladesh | April 2016 – January 2023

• Developed ATM middleware that is running in all agent booths of NRB Bank throughout the country. (ISO-8583, Java Socket, Java Rest API, MySQL) 

• Redesigned and developed the existing Remittance Processing Application, improving user experience by 75% and application performance by 15% by solving existing issues. 

• Developed a chatbot for automating banking services, removing call center executive effort by 15%.

• Implemented Robotic Process Automation for back-office verification, removing 70% of back-office user efforts. 

Research & Development Engineer 

Commlink InfoTech Ltd., Bangladesh | July 2015 – March 2016

• Developed in Biometric Sim Registration Application, an Android application for user registration for new Sim or replacement of existing Customers (Android, Secugen Fingerprint API, JAVA Rest API)  

• Resolved some issues PowerSMS, an one-stop solution to serve single and bulk SMS requirements from the client App to real-time monitoring and comprehensive reporting (Android, Java Rest API) 

• Developed some features of MuthoBank, a simple and user-friendly banking solution accessed conveniently from a mobile phone or personal digital assistant. (Android, JAVA Rest API) 

Asst. Research & Development Engineer --> Senior AGM

Walton Mobile Division, Dhaka | September 2014 – June 2015

• Developed a queue management system to manage the queue and an employee monitoring system, reducing 70% of customer service pain. (Java Servlet, Android, Swing) 

• Project Management of Walton Mobile Phone project by ensuring every aspect of the phone in terms of management, from sourcing to market availability 

• Collected requirements of an in-house online newspaper mobile app named 'RisingBD' and coordinated the BUET team to develop this mobile application. 

Freelance Research & Development Engineer

Upwork, California, USA| January 2014 – December 2014

• Developed “Patient Drug Care ” in Android, which is for the remainder of medicine, a log of medicine, and querying the quality of medicine. 

• Developed SPYWARE, a mobile software that collects users' info by searching his/her mobile in Android. 

• Developed “My Social Hub” in Android, which is special for the top 15 social media. 

Subject Matter Expert (Mathematics) & Author 

Panjeree Publications Ltd., Bangladesh | November 2008 – May 2014

• Solved mathematical problems from textbooks of various countries, such as the United States, the United Kingdom, India, etc., and incorporated these into textbooks of Bangladesh. 

• Prepared creative questions from textbooks for students from class VI to class X across the country.