SUMMARY

• 8+ years of experience in UNIX/Converged Systems architecture and Data Analytical system. In these positions, me have provided troubleshooting, monitoring, application and production support to mission critical environments and projects with excellent interpersonal and troubleshooting skills. Provides strong leadership, works well in a team environment and communicates well with customers and management.
• Supporting Redhat Linux 4/5/6 AIX 7 and Solaris 8/9/10/11 on extensive mission critical infrastructure having around 2500+ Linux servers (Production, Development, and Validation) and 4000 Solaris server with wide range of hardware; Intensively involved in Change management team’s interaction in Client’s Change Advisory Board (CAB) meetings and getting approval from change managers and change Co - ordinators for the High level maintenance and implementation of changes, creating problem tickets and finding RCA if required for Sev 1s and Sev 2s.
• Expertise in Puppet and other configuration management tool( Spacewalk/ Satellite etc) for automation.
• Worked in Hadoop Platform for big data analytics.
• Worked with open source platform (impala, hive, hue, sqoop and H-Base)
• Good exposure in SQL and Oracle Database. Designed Oracle RAC Cluster from infrastructure stand point and supporting database team for daily operation activities.
• Supporting TIBCO application and clear case views.
• Closely work with business team to procure requirement and support them with analytical and business solutions.
• Good exposure in system tuning and performance development for critical application.
• Automated various daily task via shell and python scripts.
• Configured CVM parallel cluster and DR setup on TIBCO application. Tuned kernel parameter and configured KDUMP for OS support
• Worked on Veritas Volume Manager, Veritas Cluster Services Application Administration
• Good exposure to Network Storage Solutions (ISCSI, NFS, NAS and SAN)
• Expertise in Veritas Product Tools like Veritas Volume Manager & Clusters and replicators
• Designed, planned and implemented server/storage Consolidation/Migration projects
• Supported Application, Webservers and Database servers (LAMP)
• Installed and configured all the Linux servers in the network per specifications of clients
• Monitored the servers and Linux scripts regularly and performed troubleshooting steps - Tested and installed the latest software on server for end-users.
• Attended calls related to customer queries and complaints, offered solutions
• Performed routine checks on the Linux servers of the firm.
• Configured domains on M5000 servers. Configured LDoms / Zones in T5440 and T5240 Sun SPARC Enterprise Servers
• Redhat Linux OS Patching activities periodically on VMware Linux servers and Physical blade servers using Yum local repository, satellite server.
• Faulty hardware replacement on a Physical Linux server & routine failover activities for testing application and database
• Facilitating LVM, ASM and huge page for oracle database server
• Mail relay configuration setup in postfix and send mail for exchange environment
• Worked on TSM (Tivoli) client Configuration, Regular backup, restoration and troubleshooting on the schedule backup failure
• Worked on activities like Building new servers, Decommissioning of servers by following the standard ITIL release process.
• Implemented Hadoop cluster on apache for SAs application
• Involved in the Disaster Recovery (DR) Test and co-ordinate with the other team members
• Ticket Management based on the SLA agreed to the customer and prioritizing the job accordingly using the remedy ticketing system
• Knowledge of maintaining Business Continuity & Handling Change Request Activities

TECHNICAL SKILLS

Hardware Platforms: Sun HP Midrange server, Power series, Cisco UCSBlade and chassis, HP ProLiant, DELLV Block (720 & 100),SUNFIRE

Operating Systems: Red Hat 5 & 6, Suse 11, ESX 5.0/5.5, AIX 7/6, Sun Solaris 9 & 10

Utility Packages: Veritas Replicator, Veritas volume manager and high available solution, ZFS, Global Clusters,LVM, Redhat cluster, VMware 5, Virtualization(Zones/ldoms/lpars/VM/VIO), ESX cluster,LAMP,Red Hat Satellite and upgradation, Red Hat Virtualization manager,KVM,Spacewalk, Hadoop Cluster, Oracle RAC cluster, Tibco HA setup, SUSE cluster, Mail relay, Domain Portioning, Cisco UCS, Cisco MDS, SAS and R, Oracle Data Base, SQL

Backup: TSM,Commvault, Lan free Backup, XIV Snapshot, HUR, VSP clone, ZFS snap, Rsync backup, Oracle Dataguard, Rman Backup, Data Domain backup, ISOLUN, NAS,SAN

Storage: EMC, HP, XIV, 3PAR, Extreme IO

PROFESSIONAL EXPERIENCE

Confidential, Pleasanton CA

UNIX System Administrator

Responsibilities

• Provide day-to-day technical support for Linux, Unix environments
• Servers: HP Rack mount Blade Servers and Tower Server, HP Proliant DL360 Gen8, IBM X3630 M4 Rack Server, IBM x3400 M3 Tower Server, Oracle T series etc..
• Creating shell script as per the requirement
• Worked on Openstack (Icehouse), installing, configuring VMs, creating security groups, adding storage to the VMs.
• Worked on HP Flex 10 modules, creating profiles, adding servers to the HP Chassis.
• User and group’s management, Account creation/deletion, Password resets, giving permissions
• Managing SSH connectivity for secure access to Servers
• Configuration and maintenance of NFS, FTP, SAMBA, Apache
• Worked on Puppet, creating puppet profiles, manifests, modules, adding new servers.
• Kernel patches upgrade; rebuild the initrd for the new kernel etc.
• File System management, Disk management, Tape management
• Monitoring LINUX servers for security vulnerabilities
• Troubleshooting network, software and /or hardware problems as quickly as possible
• OTRS (Open-source Ticket Request System), JIRA installed successfully on CentOS Cloud Server
• Involved in Server sizing and identifying, recommending optimal server Hardware / Operating System based on User requirements.
• Experienced worked with vendors in Troubleshooting critical hardware and software issues, replacing failed hardware and other day-to-day user trouble tickets.
• Worked on HPSM, Nagios, Jenkins, as part of support and break fix issues.

Confidential, Middletown NJ

UNIX System Administrator

Responsibilities

• Primary responsibility includes monitoring Solaris to ensure 24/7 uptime, which involve performing routine checks to verify systems integrity. In addition many administrative responsibilities like:
• Managing Sun Solaris Production and Development Servers.
• Installing, Upgrading, Patching and Configuring SUN Solaris 9/10 Using Jumpstart Servers and Interactive Installation.
• Processes administration and management like monitoring, start/stop/kill various processes
• Reviewing system log files for errors.
• Scheduling jobs for backups and monitoring processes using crontab.
• User Management - Creating, maintaining, and removing users and groups. Security settings on user accounts and groups
• Troubleshooting system/network related issues within SLA framework.
• Configuring and working with NFS
• Experience in Volume management, Disk Management, software RAID solutions using VERITAS Volume manager.
• Implementing various RAID levels, logical volume creation, mirroring and file systems
• Managing log files, Daily Management activities and health checks
• Escalation and coordination with vendors, if required
• Providing process trainings to the new joiners in the team
• Providing weekly reports to supervisor, act as backup supervisor in his absence

Confidential, Pleasanton CA

System Engineer

Responsibilities

• Responsible for day to day operations support, user support and admin duties such as trouble shooting performance issues, storage utilization issues, backup.
• Managed, configured and supported 3000 Production Servers, 1600 staging and 8000 Development Servers running on Solaris 8/10 belongs to NCB Business.
• Provided 24/7 365 support for production and COB Server Environment.
• Representing the team for Solaris migration project for migrating Solaris 10 OS to Red hat on to a new converged infrastructure. My roles includes in planning, designing, documenting and scheduling the activities as per the discussion with business teams.
• Responsible for attending the Disaster recovery meetings and updating the team accordingly to prepare the technical docs for swinging the application from primary site to Secondary site with the halp application team support and to prepare the team for COB Drills as per the DR team schedule.
• Coordinated with the application team to perform weekly application level upgrades along with system level patch works.
• Configured the LUNS assigned from EMC Symmentrix using EMC powerpath and ZFS/LVM as per the business request.
• Installed Red Hat Kernel / Security Patches on Linux Servers.
• Replaced failed hardware on HP/DELL/SUN Servers with halp of Hardware vendors.
• Configuring and adding devices as per the business requirements.
• Responsible for maintaining the REDHAT servers as per the client Standards such as Patch levels and third party software packages.
• Documenting the setup instructions and configuration changes on the server.
• Installed Oracle packages and patches as per the DBA requirements.
• Responsible to replace the failed H/W on the servers with the halp of the Service Vendors.
• Developed shell scripts for copying the data from Production to COB environment using rsync tool.
• Creation of file systems on Solaris Servers using Veritas volume manager, Solaris Volume Manager.
• Installation of recommended patches, Patch Cluster on Solaris.
• Upgrading Root Disk using fssnap utility.
• Upgrading OS from Solaris 8 to Solaris 9 or Solaris 10.
• Implementing IPMP On servers and Volume manager exposure on all platform including third party (Veritas etc)
• Maintaining Veritas Cluster Systems (including Zone Cluster).
• Adding Service Groups and Resources in Cluster and performing modifications in attributes.
• Performing Patching activities (including Kernel Patching)
• Configuring jumpstart and RED Hat satellite servers. New server Installation using Jumpstart Setup.
• OS upgradation and patching using Live Upgrade. Migrating server from UFS to ZFS using Liveupgrade.
• Firmware patch upgrade for all hardware we support (ESX and Solaris servers)
• Veritas up - gradation and Parallel cluster for Red Hat Linux. Red hat cluster exposure on development servers.
• Configuring Hardware and Software Raid.
• Implementing me/O fencing in environment.
• Expanding cluster members.
• Storage Migration using VERITAS SNAPSHOT technology.
• Working on VVR setup implementation.
• Worked on Cluster Volume Manager and managing ClusterFileSystem (CFS)

Confidential, Stamford CT

System Administrator

Responsibilities

• Configured and Managed SUN Solaris 8, windows 2003 and Red hat Linux OS on SUN Sparc and HP
• Installed O/S related patches, service packs and updates as per the application requirement.
• Replaced failed hardware on the servers with halp of the vendor.
• Performed system health checkup by using various utilities like SAR, TOP and BigBrother tool.
• Configured and Managed DNS, DHCP, NFS, NIS and other network services.
• Created, managed User Accounts and User Quotas.
• Disk configuration and partitioning.
• Monitored server and application performance tuning via various stat commands.
• Involved as an active team member for layout of network infrastructure.
• Prepared periodic reports and created adhoc reports.
• Performed RSAs (root cause analysis) and resolved issues.
• Maintained LAN, File and Print servers.
• Troubleshoot hardware, operating system and network problems and performance issues.

Confidential

Systems Administrator

Responsibilities

• Installation and configuring of SUN Solaris and Linux servers.
• Involved in Building and configuring Solaris 8/9/10 using Jump start server and Red Hat Linux Servers using KickStart server as required for the project. Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA, and UAT/Staging.
• Incident management for Unix Servers (Solaris, Linux).
• Primary responsibility includes building and supporting Solaris/ Redhat Linux 3,4 servers.
• Monitoring CPU, memory, iSCSI disks, disk controllers, physical disk, HW and SW RAID, multipath, file systems, network using the tools NAGIOS and BMC Tools.
• Extensive experience in installing, integrating, tuning and troubleshooting Apache, Tomcat, WebSphere and Weblogic application server.
• Implemented SUDO, SSH and other security tools and implemented SOX (Sarbanes Oxley) security compliance.
• Extensive use of Veritas Volume Manager for Disk management, file system management on Sun Solaris environment.
• Created Zetabyte file system (ZFS) in Solaris 10. Created zpools. Exported ZFS from local zones to local zones.