Primary on-call production and corporate IT support for three years; participated in on-call rotation. Supported office of 100 users and clients. Provided first through third level support of the Black Diamond SaaS infrastructure and application, implementation, operation, monitoring and performance across multiple environments. Maintained hardware and operating systems, administration of hosted services, and monitored system performance. Manage various networking aspects: IP addresses, domain names, DNS entries, firewalls, VPN, and SSL certificates. Configure and purchase new servers, storage, laptops, desktops, and printers. Setup alerting, monitor errors and respond accordingly. Supported Polycom phones and Asterisk based phone system. Previously supported Cisco phones and phone system. Coordinated and supervised two office relocations and one data center move. Purchased new equipment, telecom/network circuits, and configured the physical access control system. Designed and built Prod, QA, and Dev virtual environments. Performed multiple system migrations: Exchange 2000 to 2007, SQL 2000 to 2008, Cisco to Asterisk phone system. Implemented and supported TrendMicro (anti-virus), Blackberry Enterprise (mobile mail), Spotlight (monitoring), and OpenFire (instant messaging) servers.