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Sr. Systems Administrator Resume Profile

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VA

Confidential veteran will exceed your expectations in a rewarding position in Systems Network Administration.

Summary: Sr. Systems/Network Admin with 20 years troubleshooting and maintaining Local and Wide Area networks in medium / large data centers.

Work History:

Confidential

  • Assistant Vice President, Sr. Systems Administrator, GOCC Triage / Incident Manager, Technology Infrastructure Domain
  • Performed network application trouble-shooting of impacting production issues, while initiating and coordinating problem resolution.
  • Wrote maintained Unix/Linux Pre-Market Open scripts to confirm that servers were operating without bottlenecks, potential O/S or hardware errors.
  • Displayed foresight by executing end to end traces on perceived connectivity issues, actively eliminating possible sources of application problems in a team environment, engaging next level resources as needed.
  • Provided triage management on technical calls for business impacting P1/P2 incidents. Held technical peers, subject matter experts, and business partners accountable during restoral activities, ensuring proper escalation, accurate communication, and documentation of the incident.
  • Administered multiple MS SharePoint sites, including a departmental Masthead Business Continuity sites for all 10 business units within the Infrastructure Operations line of business.

Confidential

  • Sr. UNIX Systems Administrator, Midrange Technical Support MTS Infrastructure
  • Primary Admin for Global Portfolio GPS application, designing system architecture, redundancy and backup network connections for over 40 servers.
  • Systems Administration for 490 Unix servers across multiple offices. Member of on-call rotation, diagnosing network infrastructure, application and performance issues as required.
  • Project manager for migration of GPS environments onto M5000/M8000 servers. Stood-up, configured and migrated apps and data from Solaris 8 to S10 zones Sybase raw database partitions.
  • Coordinated troubleshooting effort for any performance related, network connectivity, firewall, proxy or DMZ issues involving the Global trading applications.
  • Designed a database dump-to-disk server, writing multiple Sybase DB dumps to ZFS pool of disks in QA Production, dumping over 1.2 TB each night, simultaneously.
  • Managed Investment/Trading clusters using VCS 4.1 MP2. Performed upgrades to VCS 5.0 MP1. Multiple service groups, resources, and dependencies for Sybase/Oracle databases hosted there.
  • Presented monthly performance reports for business/application Sr. management. Evaluated systems performance, and thresholds for various resource metrics. Included descriptions of metrics, and actions to be taken if one exceeded a prescribed level.

Confidential

Lead Unix Administrator / Unix Engineering Contractor

  • Lead 4 person Support team in trouble-shooting problems and performing weekly and emergency changes throughout the Unix environment.
  • Configured and maintained Cisco network switching and routing for the separate Development and QA data center within the Red Run Blvd office.
  • Identified corrected fiber and SAN binding configuration problems on over 50 SUN AIX servers, greatly increasing performance and redundancy, reducing possibility of outages.
  • Designed Centralized administration for DNS namespace updates using RedHat AS4 Linux servers utilizing Webmin GUI tools to manage master and slave zones w/ RNDC keys.
  • Lead project to utilize Network Time Protocol NTP throughout environment of 400 SUN, AIX and RHEL Linux servers, decreasing possibility of DB table corruption, and increasing batch Autosys job success rates.
  • Diagnosed and reconfigured SAN storage configuration to correct performance problems on a critical application migration project, meeting a tight deliverable deadline. Improved DB write performance by 2X.

Confidential

Sr. UNIX / Network Analyst / Lead Admin

  • Managed corp. offices data center, network operations, Peoplesoft Oracle application infrastructure, email, calendar, backups, and proxy servers. This included the Cisco network switch closets on each floor, redundant 6500 series router/switches, and Internet facing presentation zone.
  • Cisco Router/ PIX Firewall Admin from deployment to upgrades. Maintained rule-sets for internal/external and DMZ zones. Utilized IPSec tunnels for connectivity to multiple external networks. Provided ACL reporting to internal/external auditors, with detailed explanation of rule entries.
  • Instrumental in migrating 10 logical domains, 45 Oracle instances, and 5 DR domains to SUN E25K server. Received 2 corporate achievement awards for the project.
  • Relied upon for complex PeopleSoft Oracle Financials and H/R application upgrades, completing them with other project deliverables in parallel.
  • Storage Administrator, installing and managing EMC Clariion storage used by all production / DR apps and numerous databases.
  • Instituted password control PAM modules across domain, giving granular control over UNIX account security. Saved thousands of dollars by utilizing standard Solaris O/S features and open source S/W to complete.

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