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Rajesh Wadhwani has held various roles in the field of information technology. Rajesh began their career at Giant Group of Companies in 2000 as the Group Head of IT, and remained in that position until 2006. Rajesh then joined ABM Infotech Ltd. as a Vice President, where they managed a team of Oracle D2K developers, served as a database administrator, and interacted with clients. In 2010, they moved to Sandhar Technologies as the AGM of IT, focusing on BI projects. From 2012 to 2016, they served as the Chief Technology Officer of Caresoft Inc., specializing in Big Data and Business Intelligence Data Warehousing. In 2016, they became a Senior Manager at Infosys for a brief period before joining Manthan as a Senior Manager in BI-Vertica and Big Data.

Rajesh Wadhwani has a strong educational background in the field of information systems and computer science. Rajesh obtained a Doctor of Philosophy (PhD) degree in Management Information Systems, General from the University of Rajasthan, completing their studies from 2000 to 2004. Prior to their doctoral studies, they earned a Bachelor of Science (B.Sc.) degree in Computer Science from the same university, spanning from 1989 to 1991.

Additionally, Rajesh Wadhwani has obtained several certifications to enhance their professional skills. These include the Tableau Server 8 Qualified Associate certification from Tableau Software in January 2015, the RED HAT CERTIFIED ENGINEER certification from Red Hat in July 2014, and the Accredited Technical Professional - Vertica Big Data Solutions V1 certification from HP in April 2013. Rajesh is also an Oracle Database 11g Administrator Certified Professional, having acquired this certification from Oracle in January 2013. Furthermore, Rajesh holds ITIL certification, achieved in February 2012.

Although no specific dates or institutions are specified for the additional certifications, Rajesh Wadhwani has also obtained certifications in various Big Data related areas, including Big Data Architect from Intellipaat, HADOOP Certification, Hadoop Administration, Hadoop Data Access, and Hadoop Programming from IBM. Moreover, they possess the Oracle DBA 11 certification from Oracle and the Spark certification from IBM.