Jeff worked as a Network Administrator from 2013-2014 and as Tier 2 Support from 1999-2007. As a Network Administrator, his duties included building servers, performing troubleshooting and backups. As Tier 2 Support, his responsibilities included building servers, configuring computers and printers, performing backups and restores, and project work on weekends and holidays. References from both jobs praised Jeff for his strong technical skills, dedication, reliability, and ability to explain technical concepts to others.