Rivu Chakraborty is India's first Kotlin GDE, an Android developer, a community person, & one of the early adopters of Kotlin. He's presently working at Gojek as a Product Engineer. Previously he used to work at Paytm (India's largest Fintect Startup) and Byju's (India's biggest Edtech startup).

He has contributed to multiple Kotlin and Android Development books including authoring Reactive Programming in Kotlin, co-authoring Functional Kotlin the first-ever book to help Kotlin developers learn Functional Programming and use Arrow-kt in their projects, and co-authoring Hands-On Data Structures and Algorithms with Kotlin.

He has been using Kotlin since December 2015. Rivu formed KotlinKolkata User Group, the first active Kotlin User Group in India. Before he had to move out of Kolkata, he was organizing meetups and events for both KotlinKolkata and GDG Kolkata. Along with organizing community & events, he also speaks at events/conferences and local meetups.