- Developing rich web applications for a real-time communication system using Spring Boot, Spring Data, Spring Security, Angular, and other web technologies.- Developing a unified platform for real-time communication(voice, video, chat, fax) system that is accessible and controllable by the customer from anywhere through a single web interface.- Developing a real-time html5 user notification system with WebSocket and/or webhook.- Optimizing application performance with enhanced… Show more - Developing rich web applications for a real-time communication system using Spring Boot, Spring Data, Spring Security, Angular, and other web technologies.- Developing a unified platform for real-time communication(voice, video, chat, fax) system that is accessible and controllable by the customer from anywhere through a single web interface.- Developing a real-time html5 user notification system with WebSocket and/or webhook.- Optimizing application performance with enhanced relationship to reduce the overall response time.- Writing unit tests with JUnit 5. Show less

- Java EE Application Development using JPA, EJB, Spring Boot, Spring Data. - Worked on performance optimization, analyzed and correlated data anomalies, data partitioning of Bangladesh Voter Registration System with 100+ million voters data(EJB, JPA, Spring, Elasticsearch).- Mentored and managed 3 software engineers, planned and distributed tasks among them when required.

- Maintained and provided service updates for Bangladesh Voter Registration System. I was the single point of contact to provide requirement analysis, feasibility analysis, and back-end service updates. (EJB, JPA, Spring, Elasticsearch).- Developed a fail-safe and robust Voter List Generation System which can generate voter list with biometric information for every constitutional area of Bangladesh(100+ million voters).- Developed TigerIDM, a Role-Based Access Control system with SSO… Show more - Maintained and provided service updates for Bangladesh Voter Registration System. I was the single point of contact to provide requirement analysis, feasibility analysis, and back-end service updates. (EJB, JPA, Spring, Elasticsearch).- Developed a fail-safe and robust Voter List Generation System which can generate voter list with biometric information for every constitutional area of Bangladesh(100+ million voters).- Developed TigerIDM, a Role-Based Access Control system with SSO support (EJB, JPA, Spring MVC).- Developed a parallel and incremental database migration tool based on project-specific requirements. Show less

- Developed an automated Mobile Recharge, BKash Payment, Bulk SMS Providing System(EzzyPay).- Worked on developing a SIP Dialer with Java.- Wrote test cases with JUnit.