This document provides a summary of Sateesh Kumar Maddela's qualifications and experience as a System Administrator. He has over 7 years of experience in system administration, network management, and troubleshooting across Microsoft Windows and Linux platforms. His skills include expertise in system installation, configuration, and maintenance, as well as server and storage support. He is proficient in technologies such as Active Directory, VMware, DNS, DHCP, and mail servers. His professional experience includes roles as a System Administrator and IT Hardware Engineer for educational institutions in Tirupati, India.