SUMMARY:

• 7 plus years’ experience & results - driven system administrator, solution-Oriented, competent and committed in Unix /Linux System Administration. Skilled in Planning, Configuration, Administration, Troubleshooting and Maintenance of Unix operating systems with solid understanding and experience of traditional backups and and also armored with drive for continuous self-improvement.
• Expertise in application, maintenance and support of Linux/Solaris test, Production and development servers.
• Proficient in configuring TCP/IP, DNS, NFS, NIS, NIS+, LDAP, SSH, SMTP, SNMP etc.
• Efficiency in installing, configuring and implementing the RAID technologies using various tools like Veritas volume manager and File System, VCS 4.1, 5.1.
• Extensive experience in setup, configuration, upgrade, maintenance, performance monitoring and troubleshooting on different UNIX platforms like Sun Solaris 10,Red Hat Linux 4, 5, 6 software and hardware
• Experienced in Volume management, Disk Management, software RAID solutions using VERITAS Volume manager. File system Tuning and growing using VERITAS File System (VxFS), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.
• Competent in troubleshooting a broad range of hardware issues, fault analysis.Performance monitoring and capacity planning.
• Regularly Interacting with Service Delivery Managers, Supplier Managers, Service Desk and other Technical Teams.
• Handled Incident, Problem, Change and Service tickets. Experience in Firmware upgrade.
• Involved in Cross Functional Team calls to help in fixing the issues while handling P1 issues.
• Hardware Administration- Replacement of disks, System boards, Power supply, CPU, Memory modules, I/O interfaces and network interfaces.
• Handling projects and Commissioning and decommissioning of servers, patching activities on servers, OS upgrades on the servers.
• Experience in Installing, configuring and administering LINUX and Solaris servers -Using CDROM, Jumpstart and Flash on both physical and virtual (VMware) servers.
• Working experience on Sun Fire V480, V445, V1280R, Enterprise 3500/4500, Enterprise 420R and Enterprise 450 servers.
• Experience in Boot up phrases and shutdown process.User management and File system management.
• NFS Configuration- NFS Server and Client.NFS Administration- sharing and un-sharing file systems using NFS and NFS troubleshooting.
• NIS Configuration - Configuring NIS Master, Slave and Client servers.NIS Administration- Administering NIS users, creation/modification/deletion of NIS maps and troubleshooting NIS related issues.
• Experience in configuring DNS, DHCP, Firewall, HTTP, LDAP, IPMP.
• Managing the backup and recovery solutions through Veritas net-backup.
• Master on Power broker master and client installation for better security. Involved in DR activity.
• Plan, document and support high availability, data replication, business persistence, fail-over, fail-back and using VERITAS Cluster Server in SAN environment
• Excellent ability to handle significant workload with experience in managing multiple projects concurrently in a matrix process environment

TECHNICAL SKILLS:

Operating System: UNIX, AIX, LINUX, Solaris, Windows NT 4.0, Windows 98/2000/XP, VERITAS Net Backup, Windows 2000/2003 server

Languages: Shell Scripting, PERL, PL/SQL, T-SQL, Java

Web Technologies: CGI, ASP.NET2.0, ASP 3.0, HTML, XML, CSS

Networking: TCP/IP, NIM, NFS, NIS, DHCP, DNS.

Version Control Tools: SVN, CVS, Rational Clear Case, MS Visual Source Safe, Harvest CM 7.1

Technology / Concepts: OOPS (Object Oriented Programming), LDAP

Hardware: IBM RS/6000, p670, p690, p650, p630, RS/ pSeries SP2 Wide Node, HMC - Hardware Management Console 7310C03 (desk side model) and 7310CR2 (rack model)

PROFESSIONAL EXPERIENCE:

Confidential, Frisco, TX

Unix Administrator

Responsibilities:

• Part of Global service operations support team supporting across all UNIX / Linux physical and virtual servers globally.
• Troubleshooting operating system and server hardware issues at a Level 2 skill set.
• Ability to collaborate with Level 3 and other GSO support teams when issues arise that requires additional support. (Priority one issues)
• Supporting all service delivery resiliency, efficiency and Audit programs tied to compliance around server maintenance.
• Implementing, measuring, and improving all processes, procedures, and activities required to ensure maximum availability, utility, flexibility, and responsiveness of the production environment
• Part of vendor engagement model.Responsible managing and administering the servers onsite and remotely
• Advanced Installation of Redhat/SUSE Linux by remotely.
• System performance evaluation, monitoring and troubleshooting using tools top, vmstat, iostat, netstat commands.
• Closely coordinated with SAN team for storage migration, fabric issues, Multipath/DM issue. Upgrading Emulex cards, firmware for HBA to the current revision levels.
• Having very good working experience under high stress of critical production related issues where every milliseconds counts.
• Evaluating all the servers email notifications. Checking the health of the systems if we receive any error messages from the servers, guide our first level support to resolve problems on initial stage.
• Implemented network security to various UNIX services,test the software functionality and security administration of the Linux servers
• Creating and resolving user’s access issues (Role access, netgroups, FTP etc.,)
• Creating maintlog and inform the higher management to inform the unplanned server outages and planned change activities.
• Reviewing system log files for errors. Setting up cron jobs for backups and monitoring processes.
• Monitoring and troubleshooting servers and application performance issues
• Updating Shift handover with all the problems occurred in the shift and open issues.
• Creating tickets with Storage team and resolve any Storage performance issues.
• Working on approved change requests (Configuration changes, file system growing, etc.,)
• Configuring distributed file systems and administering NFS server and NFS clients and editing auto-mounting mapping as per system / user requirements.
• Involved in Planning, building, Administration and Troubleshooting of various High Availability clusters and heart beat checking on Redhat Linux and Sun Solaris using VCS 4.1 in heterogeneous SAN environment.
• Maintaining, applying changes and fail-over schedules of HA servers
• Troubleshot backup and restore problems and constant monitoring of system performance

Environment: Red-Hat Linux Enterprise servers, Solaris 8,9,10, AIX 5.3, 6.1, SAN, BladeLogic, Veritas Cluster Server 5.0, Windows 2003 server, Shell programming, JDK 1.5,1.6, VMware Virtual Client 3.5, VMware Infrastructure 3.5.

Confidential, Philadelphia, PA

Linux System Administrator

Responsibilities:

• As an Open System Administrator my duties included supporting Linux System Administrator customers with RHEL/SUSE a combination of systems architecture, systems development, Unix/Linux operating system lifecycle development, technical assessments, implementation administration, regression process development, SAN support from a directory standpoint, technology scaling, server builds, migration and/or transition planning, project planning, standards validation/development, technical documentation, presentation to management, training and mentoring of more junior staff and troubleshooting and problem resolution.
• To provide ongoing support in systems management and administration of LINUX/UNIX in global-scale environment.
• Provisioning and support of Production, QA and Developers environment.
• Deployment of UNIX /Linux, VERITAS and Build of various environments.
• Provide rotational on-call Tier III support responsibilities. Production Support: Provided 24x7 supports for various divisions within the Company and resolve all production issues in a high pressure and time sensitive environment.
• Issues related to NFS, NIS, LVM, Grub corruption, configuration & maintenance of RAID (level 0,1,5), troubleshooting VERITAS Volume Management and cluster server environment.
• Developing scripts in PERL and SHELL to automate the process.
• Disaster Recovery and Change Management: Designed and implemented disaster recovery solutions such as clusters using VERITAS Cluster server for storage replication and to allow seamless failover of IP on the DR site.
• Weekly meeting to discuss change management, datacenter and infrastructure approvals/issues.
• This includes setting up global standards for various customized images for Linux and Solaris, hardware standard (Sun and HP) and storage presentations and initialization. Engineered and managed process flows and event management as per business requirements.
• Production Support & Systems engineering duties related to Redhat system administration DNS, DHCP, NFS, NIS, LDAP, user account maintenance, backup & recovery, Auto-mounting, Licence Management, Printer configuration.
• Client interaction for requirement gathering, so as to design and plan the software and hardware infrastructure; Handled installation and configuration of SQUID Web proxy.
• Managed e-mail systems, including POP, SMTP, text, and web-based clients, as well as virus scanning/filtering software; Installed, configured and managed DNS service for several domains; Performed OS installations and configuration for testing and implementing server environment based on virtualization.
• Installed and maintained web servers Jakarta Tomcat and Apache HTTP (1.3, 2.2) Web server in Red Hat Linux.
• Dealt with Linux Utilities: KICKSTART, SSH, FTP, AUTOFS, Quota Management, wrappers, User Management, Process Management, Memory Management, and Text processing tools, Log Management, Package Management, Disk Management and Swap Partition/Files Management.
• Handled installation and configuration of Linux MTAs - (Sendmail, Postfix and Axigen).
• Preparation of operational testing scripts for Log check, Backup and recovery and Failover. Creation and implementation of shell scripts to take care of DB backup, monitoring alert log and log rotation reports.

Environment: Redhat Linux 3,4,5,6 Sun Solaris 8,9,10 Sun V440, V 20 T5240 Sparc stations 20, Switches, VMware ESX 5.1, oracle 11, VERITAS Cluster Server 5, and VERITAS Operations Manager.

Confidential, Chicago, IL

Unix Administrator

Responsibilities:

• Installed Solaris and Linux created user logins, administering the system performance and monitoring user activities.
• Building and configuring Solaris 8/10, Red hat Linux using Jump start server using Kick Start server as required for the project.
• Closely coordinated with SAN team for storage, fabric issues. Upgrading Emulex cards, firmware for HBA to the current revision levels.
• Installed VERITAS volume manager and implemented various RAID levels, logical volume creation, mirroring and file systems.
• Installation, configuration and maintenance DNS servers, Mail servers, NFS and NIS on Sun Solaris servers
• Configuring distributed file systems and administering NFS server and NFS clients and editing auto-mounting mapping as per system / user requirements.
• Installation and configuration VERITAS Net HA servers.Backup5.1 and performing restore activities.
• Involved in Planning, building and Administration of various High Availability clusters and heart beat checking on Sun Solaris using VCS 4.1 in heterogeneous SAN environment.Maintaining, applying changes and fail-over schedules of
• Reviewing system log files for errors. Setting up cron jobs for backups and monitoring processes.
• Planned, scheduled and Implemented OS patches on both Solaris & Linux boxes as a part of proactive maintenance and Secure Shell (SSH) implementation.
• Participate in installing and configuring of UNIX/Linuxbased Oracle 10g products.
• Server Virtualization using Solaris Containers (zones) and VMware.
• Wrote various UNIX Korn and Bourne shell scripts to probe network backbone equipment and provide vital statistics about the availability and responsiveness of the network.
• Installed, configured, custom building Oracle10g, Oracle RAC 11g and preparing servers for database installation which includes adding kernel parameters, software installation, permissions etc.
• Worked on creating disk groups, volumes, deporting, importing disk groups using veritas volume manager 5.1.
• Upgraded Veritas volume manager from 5.0 to 5.1 SP1. NFS Configuration- NFS Server and Client.
• Post build setup on Linux and Windows servers including installing and configuring COPS, TLM, NTP, Send mail, VMware Tools.
• Core Dump and Crash Dump administration.Scheduling system tasks using at jobs and cron jobs.

Environment: Solaris, RHEL, Jumpstart/Kickstart, SAN-HBA, RAID, DNS, NFS, NIS, Sendmail, Veritas Suite, HA, Oracle, Zones, VMware, Sun Fire Servers - E15k, 1280, 6900, V440, V490, V880.

Confidential, Phoenix, AZ

Unix Administrator

Responsibilities:

• Day - to-day administration on Sun Solaris 8/9/10, Redhat Linux 4, 5 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting server problems.
• Installed new software releases. Redhat Linux Kick start Installation - Sun Solaris Jump start Installation.
• RPM and YUM package installations, patch and other server management.
• Installed AIX 5.x using NIM on p series servers, applying packages, patches, configuring volumes.
• Creating VIO servers, LPARs, adding resources, installing AIX on p550 and p570 servers.
• Managed systems routine backup and restoring, scheduling jobs.
• Installed/ upgraded patches, firmware (OBP), and security (Kernel) patches for all applications in installed infrastructure.
• Adding software Patches for up gradation and migration of systems from Solaris 9 to Solaris 10.
• Installed and maintained the Oracle 10g with RHEL 4 OS updated them with the required configuration based on the prep and config document.
• Regular disk management like adding / replacing hot swappable drives on Packages and Kernel levelexisting servers workstations, partitioning according to requirements, creating new file systems or growing existing one over the hard drives and managing file systems.
• Diagnosing hardware/software problems and provide solutions, creating zones.
• Perform daily maintenance routines on SUN servers, monitoring system access, managing file space and tuning the system for optimum performance.
• Trouble shooting SUN Faulty Management using SFM on Sun Solaris.
• Installation, Configuration and Troubleshooting of HP Servers of Blade, DL and ML Series Servers with Redhat and Solaris installed.
• Strong experience in setting up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota, booting issues, login issues.
• Creation of Zones, Containers and adding resource pools to the Containers in Solaris 10.
• Installed and configured Send Mail server for automated mails for completed backup process.
• Installing, configuring, de-ploying Websphere 6.1, JBoss 4.2 application servers on both Sun and Linux boxes.

Environment: Sun Servers (Sun Fire 280R, V1280, E2900, E6900 and E25K), Red-Hat Linux Enterprise servers, Veritas Volume Manager 3.5, Oracle 10g, EMC Symmetrix and Clarion, Solaris 8/9/10, Windows 2000/2003 servers, MS Office, Shell programming.

Confidential, IA

Application Support Analyst

Responsibilities:

• Instrumental in requirements gathering, design and implementation of new processes and enhancements to existing processes.
• Worked exclusively with business analysts in converting functional requirements to technical requirements.
• Responsible for creating shell scripts to provide automatic updates of market data (daily).
• Responsible for creating scripts to provide historical time series.Automated Monthly and Historical data pull to avoid manual intervention.Made enhancements to the existing Shell/Perl scripts.
• Enhanced existing processes/scripts to better performance and reduce downtime.
• Created monitoring tools to engage in health checks and improved the alert mechanisms used at Confidential .
• Created automated interfaces for uploading data into MKDB for the instruments not available from the existing data sources.
• Automated file transfer between Confidential server(s) and Bloomberg FTP server via proxy servers.
• Created reports for the disk usage and tool for archive files on a monthly basis.
• Optimized queries for better performance and faster data retrieval of the Bloomberg instrument data.
• Scheduled jobs using enterprise scheduler tools for automatic data retrieval from the data sources.
• Documented processes and participated in updating document management system for all processes and setup processes.
• Enhancing the ability for user and customer interaction by proactively engaging in conversations and documenting test cases and procedures.

Environment: Linux, Oracle 10g, SQL*PLUS, Perl 5.8.9, Windows Server 2003, Control-M