V. Naresh Kumar has more than a decade of professional experience in designing, implementing, and running very large-scale internet applications in Fortune 500 Companies. He is a full-stack architect with hands-on experience in e-commerce, web hosting, healthcare, big data, analytics, data streaming, advertising, and databases. He admires open source and contributes to it actively. He keeps himself updated with emerging technologies, from Linux system internals to frontend technologies. He studied in BITS- Pilani, Rajasthan, with a joint degree in computer science and economics.

Manoj R. Patil is a big data architect at TatvaSoft—an IT services and consulting firm. He has a bachelor's degree in engineering from COEP, Pune. He is a proven and highly skilled business intelligence professional with 18 years, experience in IT. He is a seasoned BI and big data consultant with exposure to all the leading platforms.

Previously, he worked for numerous organizations, including Tech Mahindra and Persistent Systems. Apart from authoring a book on Pentaho and big data, he has been an avid reviewer of various titles in the respective fields from Packt and other leading publishers.