Sohaib Zafar

o Development and support of multiple web and service based applications for TESCO using J2EE, Vaadin, and Spring Boot frameworks. o Leading the development process of multiple Java-based applications. o Coordination with the US team for requirement gathering and code reviews. o Reviewing pull requests from junior developers. Development of Java based client side for business logics using Spring integrated with Vaadin framework for better UI experience. Development for Restful web services.

Development of Material Resource Planning web-based application for Interloop Ltd. using J2EE, Hibernate, Vaadin and Spring frameworks by adopting client-server communication pattern. Development of Java based client side for business logics using Spring integrated with Vaadin framework for better UI experience and interaction with micro services through docker images along with PostgreSQL as local database. Development for connectivity between client and server using gRPC.

 Development of Java based software program (Reporting Tool) supporting generation of reports from MySQL database tables, custom report definitions, report cloning, report merging, comparing reports and exporting reports in csv, pdf and excel files.  Development of Reporting Tool that supports expression language, SQL queries, R and Python language functions, parsing Excel expressions and functions.  Automation of transformation of excel expressions and formulae into report definitions.