Maruf Halder is a Lead Data Architect and Senior Managing Consultant at IBM since May 2018, specializing in solving Big Data problems and serving as a Data Architect for ING Bank. Previously, Maruf held various roles at IBM from July 2012 to 2017, including Advisory Consultant, ETL Designer, Business Analyst, and Big Data Consultant for clients such as Turkish Airways, Etihad Airways, Citibank, Fuji Xerox, and Thai Airways. Prior experience includes working as a Software Designer at Hewlett-Packard from May 2009 to July 2012, focusing on ETL design for multiple clients. Maruf also coordinated Network Management Courses at IIM-C and IIT-KGP in 2006 and 2007, respectively. Maruf holds a Bachelor of Technology (B.Tech.) from West Bengal University of Technology, completed in 2008.