This document contains a resume for Sachin Kumar, who has over 12 years of experience in back-end operations and team management. Currently, he works as an Operation Lead for TCS Ltd., overseeing a team of 45 people providing IT support for ONGC Ltd. Prior to his current role, he held similar leadership positions at other companies such as CMC Ltd. and PCS Technology Ltd., where he was responsible for managing teams and ensuring customer satisfaction. His experiences include incident and problem management, process implementation, team management, and customer relationship management in accordance with ITIL frameworks.