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Sr. Linux Security Administrator Resume

SUMMARY:

  • IT Professional with 15+ years experience in UNIX and Redhat Linux System Administration, File Systems, Clustering, Storage and Networks.
  • Resourceful in Diagnosing and Solving Issues
  • Knowledgeable of Technical Processes and Procedures, Helpful in and Sharing information.
  • Architected Server and Network Solutions in UNIX Enterprise Environments
  • Developed Exceptional problem solving, troubleshooting and communication skills
  • Managed Veritas Cluster Server and Veritas Volume Manager
  • Administered netapp filers, created qtrees, managed space and set up snapmirrors
  • Maintained Customer Relationships and Presented Technical aspect of Vender offering
  • Installed Redhat Linux 4, 5 & 6 and Solaris 8, 9, &10 on both X86 and Sparc platforms
  • Trained and Mentored new and junior level administrators
  • Maintained Domains and Zones
  • Set up Hardware and Software Raids
  • Split Mirrors, Upgraded and Patched O/S
  • Created and Restored from Flars and Installed and Upgraded from NFS
  • Upgraded Firmware on System Boards, Raid Controllers and Disks

TECHNICAL SKILLS:

Operating Systems: Solaris (6, 7, 8, 9, 10), RHEL (4, 5, 6)

Utilities: Veritas Volume Manager, Veritas Cluster Server, Veritas Net Backup, Confidential OmniBack, EMC Legato Networker, Tivoli, SGE, NFS, NIS, FTP, autofs, cifs, samba, citrix, Exceed on demand, Perl, PC Anywhere, Remote Desktop, Putty, Lotus Sametime, Sitescope, CA EHealth Performance Manager, Opsware, Remedy (6, 7), Visio, MS Word, Excel, Power Point, Projects

Storage Devices: EMC, Hitachi, LTI, Confidential, Confidential, Sun StorEdge T3/A1000/A5200, Storage Tek Libraries, LTO, SD - 3, IBM 3592, and Quantum DLT Tape Drives

EXPERIENCE:

Sr. Linux Security Administrator

Confidential

Responsibilities:

  • Provided PowerBroker Application support for Security Servers in multiple geographical locations
  • Scheduled Maintenance, Upgrades and Installs on PowerBroker Servers
  • Performed throughput analysis against batch jobs run
  • Administered Linux, Sun Solaris and AIX systems

Senior Linux Systems Administrator

Confidential

Responsibilities:

  • Provided User and Software Support for Geophysical and Geological Applications
  • Maintained VMWare systems
  • Set up partitions, created volumes in LVM2, mounted file systems, set permissions, and exported nfs
  • Backed up and Restored files systems using Tivoli TSM in support of backup and DR efforts
  • Administered Linux HPC Cluster using Bright Cluster Manager
  • Supported all aspects of Redhat Linux and Centos Operating Systems

Lead UNIX/Linux Systems Engineer

Confidential

Responsibilities:

  • Implemented changes with system services to include: automount, NIS, FTP, SSH, citrix, sudo, samba, trusted host, cron, yum, exceed on demand, sendmail
  • ITIL certified
  • Administered netapp filers, created qtrees, scheduled snapmirrors,
  • Supported Oracle Solaris 8, 9, &10 and Redhat Linux 4, 5 & 6 systems for the PCE environment
  • Managed Linux Sun Grid Engine (SGE) Cluster
  • Trained new and junior level administrators
  • Provided Technical Guidance for several multimillion dollar hardware upgrade/replacement projects

UNIX Technical Account Manager

Confidential

Responsibilities:

  • Addressed Customer requests, Provided feedback on customer calls and worked with Account Managers to insure that SLAs were being maintained
  • Resolved hardware and software issues utilizing T - systems support structure
  • Provided technical expertise with projects, changes and issues concerning t-systems customers
  • Maintained customer relations with customer’s personnel
  • Provided root cause analysis and situation assessment documentation

Sr. UNIX/Linux Systems Engineer

Confidential

Responsibilities:

  • Demonstrated expert knowledge of both business and technical aspects for multiple client systems with different characteristics and customer requirements
  • Managed hundreds of Enterprise class Machines via Remote Administration
  • Installed Sun Solaris and Redhat Linux on both X86 and Sparc platforms
  • Provided application support during installs and upgrades
  • Followed an operational change management process to implement changes
  • Met with customers on weekly basis to go over existing changes and to schedule maintenance windows.
  • Diagnosed hardware and software issues that affected performance, connectivity or functionality
  • Upgraded HMC Machine Code Level & Connected remote to IBM servers
  • Maintained PCI compliance in accordance with PCI data security standards
  • Wrote shell scripts in sh, ksh, csh, bash, awk and perl to automate administrative tasks
  • Maintained Users, Groups, Sudo, Interfaces, Routes, and Services

Sr. UNIX/Linux System Administrator

Confidential

Responsibilities:

  • Supported High Availability Solaris and Linux Servers in a 24/7 Enterprise Environment
  • Provided Application Support during Installs, Upgrades and Conversions
  • Maintained Cluster Integrity and Diagnosed Hardware and Software Faults
  • Installed, Upgraded and Patched both Solaris and Linux operating systems
  • Managed multiple VCS clusters and routinely performed failover
  • Created and Supported domains on Sun M class servers
  • Wrote shell scripts using perl to create reports and automate system tasks

Storage Sales Engineer

Confidential

Responsibilities:

  • Provided technical expertise on sales calls and customer visits
  • Evaluated customer site implementations, Recommended enhancements and Maintained customer relationships
  • Installed and configured the DataDirect S2A high performance storage solution on GPFS
  • Provided expertise with Polyserve, StorNext, and Lustre file systems
  • Made Presentations on the technical aspects of the company’s offerings to customers
  • Updated customers with new releases of firmware

UNIX System Administrator

Confidential

Responsibilities:

  • Supported Sun Solaris Servers in an Enterprise 24/7 environment
  • Configured San Switches and Disk Arrays
  • Implemented Disaster Recovery site to provide 100% site functionality
  • Provided daily reports of system downtime, hardware failures and overall system integrity
  • Reconfigured Netbackup policies to be more efficient and use fewer backup tapes

Linux Specialist

Confidential

Responsibilities:

  • Installed, Upgraded and Patched Redhat Linux
  • Informed customers of proposed changes and the implications to their services
  • Configured and installed Raid storage
  • Performed Performance tuning, troubleshooting and daily maintenance on multiple Linux clusters
  • Diagnosed and Resolved hardware and configuration issues

Storage Sales Engineer

Confidential

Responsibilities:

  • Presented storage concepts to customers and Maintained customer relationships
  • Installed Object based Storage on Linux clusters
  • Configured Cisco, Dell, Confidential, and Extreme Switches
  • Installed Redhat Linux, DHCP and TFTP
  • Wrote Shell Scripts to automate functions for Linux and BSD operating systems
  • Recommended system configurations and Debugged problems at customer sites
  • Updated customers with new firmware for raid controllers and disk drives
  • Setup equipment and performed presentations at conferences and conventions

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