Stephen Gelman Email & Phone Number

Chicago, Il, Us

Chicago, Il, Us

Chicago, Il, Us

Oo

Columbus, Ohio, Us

Responsibilities• Manage Linux servers running CentOS, Ubuntu and openSUSE and Windows servers running Windows Server 2003, 2008 and 2008 R2• Maintain a data center: set up and configure rack-mounted and blade servers; run Ethernet, coaxial, and optical fiber cable• Handle 24/7 operations for servers, desktop and laptop computers and desk phones • Facilitate the management of an IP network by configuring and maintaining Cisco and 3Com network switches, routers, and firewalls• Maintain a self-engineered Puppet infrastructure to allow for automated provisioning of both physical and virtual machines in less than 10 minutes• Deploy new versions of JBoss applications developed in-house• Oversee facility management, telephony, office security, and video conferencing• Purchase, manage, and evaluate hardware needs for an 200+ person workforceCompleted Projects• Reduced annual budget by over $20,000 by reducing cell phone and internet costs• Designed and implemented a virtualized JBoss application server environment and a stress test environment using the Xen Cloud Platform to transform the infrastructure from 100 physical servers to 300 virtual machines• Planned and orchestrated successful data center and office moves of infrastructure and 150 people• Virtualized and upgraded servers running Alfresco ECM, Scarab, Jira, GLPI, Openfire and Hyperic• Contributed to the Amanda Backup open-source project• Repaired issues with PBXes running FreePBX and Asterisk and redesigned Polycom phone infrastructure• Rebuilt and performed a bare-metal recovery of a Zimbra mail server• Implemented CAS single sign-on for both in-house and other applications• Devised robust load-balanced Apache web servers using Corosync, Pacemaker, and ldirectord• Programmed LDAP and Active Directory management tool using Python with the TurboGears framework to allow efficient directory management• Participated on a team that planned and executed the integration into a Fortune 200 company

Waltham, Ma, Us

· Resolved support tickets for faculty, staff, and students · Administered Linux systems running Red Hat Enterprise Linux including troubleshooting problems · Programmed using Python, PHP and MySQL · Implemented new services, including an enterprise wiki system and an enterprise blogging system · Coded an iCalendar exporter for Oracle Calendar in PHP · Virtualized services using Xen and VMware infrastructures · Repaired a Wake-up Call system that uses Cisco IP Telephony · Upgraded essential services, including CoSign SSO · Modernized and virtualized a mailing list system running Sympa · Wrote scripts using shell scripting and Python to automate tasks · Coded Java plugins for Openfire, Confluence, and Jira · Managed, migrated, and upgraded a Red Hat Network Satellite · Created and deployed RPM packages · Assisted with the upgrade of a Cisco IP Telephony System

· Maintained and improved a Windows Server 2003 Active Directory environment, including fixing longstanding problems · Provided technical support to station employees · Installed and configured new servers running both Windows Server 2003 and 2008 · Advised on virtualization solutions · Configured the Microsoft Operations Manager to monitor servers · Upgraded search service using Microsoft Indexing Service

· Supported Macintosh and Windows machines · Answered support calls from faculty and staff · Repaired computers · Setup and maintained Linux servers running Gentoo and Debian Linux · Migrated a Sun Solaris server to OS X Server · Created software images of Macs intended for deployment on desktops and laptops · Setup and managed a Radmind server running OS X Server for use with mobile laptop carts · Performed general OS X Server maintenance