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Unix Systems Administrator Resume

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Oklahoma, OkC

SUMMARY

  • Around 7 years experience working in IT and across different technologies involving different problem solving skills and techniques.
  • Proficiency in Linux (RHEL 5) system administration for Production/Development and testing environments
  • Core expertise with RedHat LVM, and troubleshooting.
  • Installed and maintained Red Hat Enterprise Linux (3, 4, and 5) on Various Hardware.
  • Maintained and managing web servers running Apache and Tomcat.
  • Troubleshooting web server issues and TCP stack trouble shooting.
  • Performed User Administration, Auditing, System Security and System Tuning.
  • Configured and Maintained NIS, NFS, DHCP, HTTP, Samba, FTP & DNS environment.
  • Hands on experience with Logical Volume Manager,
  • Installed and configured several third party tools like harvest, SCM, Primecode & HPSD
  • Participating in an on - call rotation that provides 24x7x365 coverage of mission critical systems.
  • Experience in cloud computing
  • Have worked on the development of a ticketing tool called HPSD
  • Strong knowledge on SDLC process and implementation.
  • Hands on experience with scheduling tools like control M & TWS
  • Have more than 2 years of experience in Business Objects XI R2 and 6.5
  • Have worked for more than 1 year in the code promotion tools such as Harvest, Primecode.
  • Support for disaster recovery designs, performing DR tests on UNIX systems to prove reliable DR availability.
  • Experience in SAN and NAS environments meeting high availability storage requirements for servers with failover design.
  • Experience in working in a datacenter environment to provide onsite and hardware related troubleshooting and upgrades.
  • Design of Unix infrastructures and implementing high availability environment to match business requirements.
  • Supporting hardware and networks and troubleshooting hardware and networks issue for customers in a global platform.
  • Rapid Learner and Team Player with solid systematical troubleshooting and communication skill

TECHNICAL SKILLS

Software Applications: Experience with Microsoft Office Suites (2000,2003,2007)

Operating Systems: RHEL, HP-UX, Widows, Tandem (HP-Nonstop)

Databases: SQL Server 2000, HPSD 4.5 SP23

Reporting Tools: Business Objects 6.5, Business Objects XI R2, Report Manager 4.55, Report Manager 4.56

Scripting Languages: Shell & Perl

Ticketing Tools: HPSD, HPSM, Maximo, Nagios, BMC Remedy

Scheduling Tools: TWS 8.5 & ControlM

Volume Management: Linux Volume Management

Other Tools: HP SIM, HP Insite Manager, OVOW, Browsers - Internet Explorer/Firefox/Netscape, Mail - MS Outlook/Lotus Notes

Hardware: HP Proliant DL 380 G3/G4/G5/G6, DL 365, 585, Dell Power Edge Series R710, R910, Dell M610, SuperMicro

PROFESSIONAL EXPERIENCE

Confidential, Oklahoma, OKC

UNIX Systems Engineer

Responsibilities:

  • Installation and configuration of RHEL on servers and hand over to account teams for business use.
  • Data center infrastructure design and deployment.
  • Kernel tuning to assist Very High Frequency Systematic Trading.
  • NFS file system mounting and troubleshooting on Linux machines.
  • Troubleshooting hardware issues on various hardware’s and platforms across different datacenter locations.
  • Performing capacity planning and performance tuning for swap space, paging, share memory file systems, disk space, Daemons, web server processes, & SSH.
  • Providing support for tapes and library management for the backup infrastructure.
  • Providing solutions and design ideas for UNIX servers designs and ensuring disaster recovery and redundancy issues to be handled.
  • Control-M job processing and management.
  • User management, security planning and implementation.
  • Monitoring servers with Patrol monitoring tool and assist in incident management for production issues. LDAP configuration and administration.
  • Configuring cluster servers.
  • Worked on the basics of cloud architecture
  • File system management with LVMs on Linux platforms.
  • Providing trading desk support for high availability
  • Experience with storage area networking SAN, NAS as it applies to systems administration.
  • Experience with EMC, Veritas in the production environment.
  • Daily security checks, third party software installation and upgrades
  • Configuring and Implementing clusters
  • Build and maintain RPMs and Custom Package Repositories and building YUM server and its repository.
  • Configure and maintain load balancers, firewalls with IP tables and switches
  • Ordering hardware components and servers for different projects based on requirements.

Confidential

UNIX Systems Administrator

Responsibilities:

  • Installed and configured computer peripherals.
  • Modified settings, storage and directory activities as set by the company guidelines.
  • Developed configuration procedures to maximize computer applications.
  • Implemented a standardized approach in installation processes.
  • Interpreted unfamiliar terminology to co-workers.
  • Install and configured cluster on RHEL
  • Design, build and Implement the XEN virtualization server on online game and Web servers
  • Implemented SystemImager on RHEL5 which automates Linux installs, software distribution, and production deployment
  • Implemented secured FTP (SFTP) server with CHROOT jail on online FTP servers
  • Install and configure sudo shell (sudosh) on all production Servers for SOX account monitoring
  • Experience in cloud computing
  • Installed, Configured and Maintained RHEL4 and RHEL5
  • Installed LVM on Linux.
  • Analyzed the performance of the Linux system to identify Memory, Disk I/O and Network problems using ps, sar,vmstat, iostat and netstat values
  • Creation of test reports and presenting it to the development teams
  • Maintenance level upgrades and software administration on RPMs on Linux using yum
  • Installed and Maintained Software Packages & Patch’s on both Linux and HP UX boxes.

Confidential

Responsibilities:

  • Installation of Red Hat Linux and HP-UX servers
  • Hardening it as per IT standards
  • Providing day-to-day user administration like adding/deleting users and managing user’s queries
  • Regular disk management like adding/replacing hard drives.
  • Logical volume management tasks like creating volume groups, file systems or extending and managing file systems according to requirements
  • Proactive maintenance on systems by timely upgrading patches to the system and applications
  • Tuning the kernel parameters based on the applications requirement
  • Performance monitoring in servers
  • Planning backup strategies
  • Root disk mirroring
  • Played an important role in implementing Ignite in the environment
  • Installation of LINUX through kick start mode and HP-UX through Ignite
  • Troubleshooting and fixing the problems related to systems and day-to-day regular maintenance tasks of the system
  • Engaging and working with different vendors (HP, IBM) to determine problem resolution and root cause of hardware and software problems
  • Creation and scheduling of Cron Jobs for activities such as Backup, System Monitoring and removal of unnecessary files and compressing log files
  • Managed third party tool VAS for centralized user accounts
  • Maintained and managing web servers running Apache and Tomcat.
  • Troubleshooting web server issues and TCP stack trouble shooting.
  • Cross functional support across towers
  • Responsible for quality reviews and standards
  • Provided 24*7 on-call / Remote support for UNIX production problems in weekly rotation basis.
  • Writing shell scripts, modifying it when needed based on appropriate requirement from the client or the application team.
  • Adhere to ITIL process and providing deliverables on time.
  • Client/Vendor co-ordination
  • User management
  • Experience in cloud computing
  • Managed third party tool VAS for centralized user accounts
  • Cross functional support across towers
  • Using HPSD for service request and Processes

Confidential

Assistant System Engineer

Responsibilities:

  • Administration Level Support for the ticketing tool HPSD 4.5 deployed in KC.
  • Upgrade of the reporting tool deployed in KC from Business Objects 6.5(with Report Manager 4.55) to Business Objects XI R2 (Report Manager 4.56).Reports, Objects, Folders, etc was migrated from BO 6.5 to BO XI R2
  • Played a major role in designing the Infrastructure up gradations required for the newer version
  • Deployed the Import Wizard module for the up gradation
  • Installation of BO XI R2, RM 4.56
  • Migration of objects from BO 6.5 to BO XI R2
  • Developed an offline set up for the Reporting Module. This was done to avoid the performance impact on Service Desk Database.
  • The Reporting application was moved to a different server in which the database has a restoration of the Service Desk database (Production) for every 12 hours.
  • The plan for off-line reporting was suggested so as to improve the performance of tool
  • Deployed the Application on to the server
  • Designed the plan and scheduled the available reports in the new set up.
  • The SLA metric analysis which was evaluated manually based on region-wise, severity-wise was automated which reduced nearly 15 hours of manual work.

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