Rajat Kumar has over 3 years of experience as a Software Engineer at Samsung R&D Institute in Bangalore. He has worked on projects including developing a REST API and mobile apps using Node.js, MongoDB, and JWT to control IoT devices, and migrating browser databases during an OS migration. Rajat also has experience creating REST APIs and an Android app for live sports scores as an intern at Samsung. He has a B.E. in IT from Jadavpur University and skills in languages like C++, Java, and databases like SQL and MongoDB.