Architected, deployed, and maintained Microsoft Active/Passive SQL server clusters.Administration of Microsoft Windows 2003 servers in workgroup and domain configurations.Created deployment guides for server builds and security policies in accordance with ASP/PCI security standards.Troubleshooting of airline application issues.Administration of Apache web proxy redirects.Application deployments into QA, UAT, Staging, and production application environments.Managing Active Directory objects and desktop migrations into Active Directory.Administration of various services including but not limited to POP, IMAP, SMTP, Webmail, DNS, and HTTP/HTTPS.Responded to system and network alerts whole on call in accordance with SLA contracts.

Management of LAN devices including but not limited to HP switches, Juniper Firewalls, HP Servers, and Printers.Administration of Linux servers in a web hosted environment and the software applications installed including JBOSS, Apache, mod_jk etc.Performed security assessments on all Linux and windows servers.Controlled security on Linux and Windows servers by implementing access controls through ACLs.Maintained a healthy development environment for developers via patch control and maintaining servers to insure stability.Performed network vulnerability scans using Nessus and other tools on both Linux and Windows servers.Managed Active directory users and groups and controlled access to windows resources via group policy.Management of Exchange 2000/2003 and migration from Exchange 2000 to Exchange 2003.Deployment and management of security patches/updates on all servers using RHN and Microsoft Update Services.Administration of VMWare Infrastructure 3.0.2 and 3.5. with over 50 virtual hosts.

Administration of Windows 2000/2003 servers and Microsoft Exchange Clusters. Administration of network devices including Cisco Firewalls and switches.

Supported clusters of MS SQL servers and MS IIS servers in an e-commerce environment using F5 BigIP solutions.Designed and deployed robust VPN servers using OpenVPN with two-factor authentication.Administration of IPtables and Cisco PIX firewalls.Administration and deployment of Microsoft Security patches using Windows Software Update Services (WSUS) server.Administration of a centralized Anti-Virus solution.Performed network security audits on both internal and external networks.Administration of E-Mail.Supported Active Directory and maintained group policies.Supported HP and Dell server hardware.Supported Microsoft Windows 2000/2003 Server environment.Supported ISS Real Secure Intrusion Detection and Preventia Intrusion Prevention Systems.Support of MS SourceSafe.

Worked in conjunction with the IT department to develop security policies and security awareness programs for employees in order to pass the Visa PCI compliance audits.Deployed SNORT Intrusion Detection Systems.Performed vulnerability assessments and penetration tests against network connected devices.Configured and maintained Linux SMTP servers to combat spam.Configured and maintained Linux servers for the deployment of SNORT IDS software.Configured and maintained Linux Web server.Approved firewall changes to campus and production networks.

Responsibilities included developing Enterprise wide security policies in the areas of: employee use of network resources, secure LAN server deployments, and access list policies (ACLs) for Cisco routers, authorized software use and end user agreements for cable modem customers.As a team lead I directed and assigned projects to subordinate security analysts and managed there day to day activities.Developed security polices that helped shield the company from legal liabilities of its employee’s use of the company’s resources.Setup and maintained Intrusion Detection Systems throughout the network using technologies by Real Secure and open source solutions such as SNORT.Ensured that all passwords and SNMP community strings on routers and switches were changed routinely.Performed network and host based vulnerability assessments on Internal and Internet connected servers such as IIS web servers and SQL servers using Real Secure Internet Scanner, Nessus, Nmap, and Microsoft Baseline Security Analyzer.Setup and maintained Cisco PIX firewalls at all Internet access points and other points of connectivity to untrusted networks.Setup and maintained IPSec VPN connectivity for users that needed offsite connections to the network using Symantec Raptor Firewall//VPN technology. Configured desktop client connectivity to Nortel Networks VPN concentrator. Developed policies that outlined how to deal with Computer viruses and what software is to be used for protecting the company from virus threats. Maintained Virus gateway E-mail servers that cleaned all inbound and outbound email to and from the Internet.