SUMMARY

• 7+ years of experience in UNIX (SOLARIS & RHEL/CENTOS) Systems Administration.
• Extensive experience in installation, configuration, maintenance, design, Administration, implementation, and support on Solaris, Linux and HP - UX Environment.
• Experience working with DNS/DHCP/LDAP/NFS/NIS/NIS+ services.
• Excellent Knowledge in Capacity Planning and Performance tuning.
• Installation Configuration and Administration of VERITAS Volume Manager, VERITAS Cluster Server 5.0, VxFS, Solstice Disk suite 4.2, Disk arrays and quotas.
• Experience in implementation and maintenance of VMware, DNS, DHCP, NIS, NFS and SMTP.
• Proficient in handling Hardware issues, Migration and Data Center Operations.
• Proficient in 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.
• Proficient with mail technologies such as SMTP/ICMP/POP3/send mail/mailx.
• Proficient in writing Shell scripts to automate business process.
• Experience in Installing, configuring and maintaining apache/tomcat, samba & send mail, Web Sphere Application Servers. Expertise in VMware Virtualization solutions, VM Migration & Cloning.
• Experience working with LDAP/Kerberos authentication and Access Management control in mixed environments using tools like VAS.
• Possess an ability to automate jobs using Perl, Shell & Python scripting.
• Experience in Patch and Package management.
• Knowledge on Veritas Netbackup and HP Data Protector.
• Extensive experience in Advance installation techniques like Kickstart/Jumpstart.
• Dealt with User Management for local and network users.
• Installation and configuration of Solaris Zones and ability to work with ZFS/SMF/POOLS.
• Installation, configuration and management of LAMP and SAMP stack.
• Have experience working in Amazon Cloud Computing servers (EC2).
• Amazon EC2 instance maintenance and system upgrades and deployment.
• Installation and Configuration of VMware ESX, ESX i Server 3.0, 3.5 and VSphere, VCenter 4.1 & 5.

TECHNICAL SKILLS

Hardware Platform: Sun Fire V240/T200/280R/4100/4540, HP DL 360 Gen6, SUN SPARC Enterprise M9000/M5000/M4000, Dell PowerEdge Series.

Operating System: Sun Solaris 8, 9, 10, Red Hat Linux 4,5,6.0, HP-UX

Storage: Hitachi Storage, Netapp Filers

Scripting: UNIX Shell Scripting, Perl, Python

Database: Oracle, MySQL

Monitoring Tools: Nagios, Splunk.

PROFESSIONAL EXPERIENCE

Confidential, San Francisco, CA

UNIX/LINUX-Systems Administrator

Responsibilities:

• Working as Sr. Unix/Linux/VMware admin for IT Infrastructure.
• Handling Lift and shift, Racking and cabling of Servers in the Data Center.
• Supporting 500+ large scale servers Hardware and Operating System Administration.
• Day to day ticket resolution and server support for REIT-related project work.
• Installation configuration and Troubleshooting of RHEL 5.x and 6.x on Physical gear.
• Performance monitoring and tuning on RHEL/CENTOS hosts.
• Configuration of DNS, APACHE, MAIL, DHCP & FTP Servers in RedHat Linux.
• Kickstart/PXE of Linux hosts.
• Allocating system storage and planning future storage requirements, Database Backup and Recovery, Exporting and Importing Database, Creating Database triggers for security & data manipulation.
• Trouble shooting of day to day *nix Issues.
• Knowledge of Dell servers and HP ProLiant
• Able to deploy Windows and Linux VMs using Manual methods and Scripts.
• Deploy, manage, and troubleshoot VM Deployments and ESXi Deployments.
• Solid understanding of System Performance and monitoring.
• Build and run scripts to manage/automate tasks related to VMware and O/S platforms using PowerCLI.
• Maintain and manage VMware infrastructure to ensure stability and availability.
• Fine tune VMs configurations to get the best balance of performance, resource optimization and availability.
• Installation configuration and maintenance of n-Node 11gR2 ORACLE RAC cluster on Linux.
• Performs troubleshooting to isolate and diagnose VMware infrastructure problems.
• Hands on Chef Configuration Management.
• Handling day to day issues with Chef Server and Chef Clients.
• Ability to automate repeated tasks using Shell / Perl / Python scripts.

Confidential, New York, NY

UNIX/Linux System Administrator

Responsibilities:

• Working as Sr. Unix/Linux/Solaris admin for Cisco WebEx infrastructure.
• Supporting 800+ large scale servers.
• Installed/configured/maintained Solaris, Redhat & SUSE Linux, ESXi5 servers.
• Hands on VMWARE virtualization.
• Provide Bi-weekly 7x12 on call supportof Servers.
• Managed UNIX/Linux servers providing DNS, Apache/PHP, Samba, LDAP, and DHCP.
• Deployed Cisco UCS Series/ HP DL series / Dell Hardware.
• Used automated installation of Kickstart for RHEL 5.x and Jumpstart for Solaris 10.
• Implementation and configuration of SFTP server for (500+) customers.
• Installed configured ORACLE RAC on RHEL 5.x Servers.
• Installation and configuration of ORACLE 11g R2.
• Report generation using Perl Scripts and Proficient in one liner Perl scripts.
• Extensively worked on VERITAS Volume Manager, VERITAS Netbackup and VERITAS Cluster Server.
• Backup and restore data using VeritasNetbackup.
• Installation, configuration and management of SAMP {Solaris/Apache/MySQL/PHP} and LAMP {LINUX/Apache/MySQL/PHP } stacks.
• Mediawiki 1.21 - Installation, configuration and data deployment.
• Implement change and resolved ticket using BMC Remedy.
• Installation configuration and managementof VeritasNetbackup,VXVM,VCS,ZFS,Virtualization (Xen, SolarisZones/Containers).
• Encompassing load-balance and extensive hardware and software HA.
• System monitoring, tuning, support and patch using Redhat Satellite Server.
• File system management: LVM, SVM.
• Configuration of ILO’s on HP &iDRAC’s on DELL Servers &CIMC on CISCO UCS Severs.
• Extensively involved in Decommissioning servers by clubbing multiple applications in single servers.
• Cluster management and scripting for file & log retrieval/collection/monitoring in Perl.
• Performed Server consolidation and virtualization using VMware virtual infrastructure that includes VMware ESX, ESXI.

Confidential, Boston, MA

Linux Administrator

Responsibilities:

• Installation, Upgradation and configuration of RedHat Linux and Windows 2000 servers.
• Installed and Configured WebLogic 6.0/7.1 Application Server.
• Deployed latest patches for, Linux and Application servers, performed RedHat Linux Kernel Tuning.
• Supported EA’s infrastructure on Amazon Web Services(AWS) cloud which includes creating and maintaining the instances as per the business requirements.
• Perform change managements from systems team for any maintenance.
• Upgraded BEA WebLogic 7.0/6.1 server with latest service pack patches to 8.1.
• Implementation of Samba to help printing and file sharing in the mixed Environment
• Installing and setting up Oracle8i on Linux for the development team
• Involved in creating new users, groups and setup their home directories and appropriate access restrictions to software and directories & files.
• Developed Korn and Bash shell-scripts to automate routine activities
• Migrated database applications from Windows 2000 Server to Linux server
• Configuring Windows Machines in Work Group Environment
• Create system images with Norton ghost.
• Performance Monitoring & System tuning.
• Managed Virtual Memory and swap space on RedHat Linux Servers.
• Configuration of DNS, APACHE, MAIL, DHCP & FTP Servers in RedHat Linux 3.x/4.x.
• Written Shell scripts to run Batch Jobs using cron and at.
• Implementing Raid levels and changing Boot PROM values according to the requirement.
• Configuring modems & printers.
• Documenting the configurations, changes made on any part of System and Network.
• Involved in Backup of data on DAT tape drive, security, performance and availability of system and network.
• Provided support by 24x7 shift rotation basis and pager support.
• Monitored trouble ticket queue to attend user and system calls, attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment.
• Administering Load balancers F5 and Netscaler by adding nodes in load balancer.
• Experience with using and configuring NoSQL environments (MongoDB).
• Experience with LAMP.
• Hands on Chef.

Confidential, Windsor, CT

Linux/ Unix Admin

Responsibilities:

• Provided 24x7 on-call supports in debugging and fixing issues related to Linux, Solaris, HP-UX Installation/Maintenance of Hardware/Software in Production, Development & Test Environment as an integral part of the Unix/Linux (RHEL/SUSE/SOLARIS/HP-UX/AIX) Support team.
• Installed/Configured/Maintained/Administrated the network servers DNS, NIS, NFS, SENDMAIL, involved in Adding new disks, formatting, partitioning, disk space allocation, monitoring system performance, system tuning, server hardening and crash recovery issues.
• Implemented security in systems and network for all Sun Enterprise Servers & Desktop Servers, Implemented the skills of Load balancing for edge components using F5’s BigIP load sprayer.
• Installed and configured Solaris 10 servers with Zones and containers on SUN M5000 and T2000 Servers with SUN ZFS. Implemented SUDO, SSH and other security tools.
• Administered file system and volumes using Veritas Storage Foundation, Solaris Volume Manager on Solaris and Logical Volume Manger on Linux. Installed and Configured Veritas Volume Manager for Development, Test and Production environments.
• Key participant in implementation and integration of three new data centers including physical, logical and application level testing and support and developed and executed test plans for Veritas Cluster with Netapp SAN.
• Installed and configured RedHat Satellite server for package transfer across servers, to store client’s system profile and to control other servers in the network.
• Package management like Install, remove and update and querying packages using RPM tool.
• Maintained Load balancing, High availability, Failover functionality and Disaster recovery included changing IP address of the web and app server machines, which caused change in the virtual host and http transport configurations.
• Monitoring of space availability on each file system using the Shell Scripts.
• Monitored the performance of the system using ps, prstat, vmstat, mpstat, perfmeter and iostat to check the CPU utilization, bottlenecks of I/O devices, Memory usage and Network traffic.
• Worked in environment containing Solaris zones/containers and involved extensively in trouble shooting the issues by finding out root causes, analyzing core dumps and resolved system crashes.
• Responsible for configuring Postfix mail relays with Mail Exchangers, Bind DNS Server and clients, SNMP v3 and NTP relays.
• Responsible for installing, configuring, maintaining, upgrading and troubleshooting EMC powerpath on Solaris 10 and Linux.

Confidential

System Administrator

Responsibilities:

• Building Linux servers using kickstart and Solaris using Jumpstart.
• Providing onsite support for 800+ Solaris/Linux/SUSE. Installation of Operating systems of both Solaris/Linux using the manual procedures and hands off procedures like Kickstart& Jumpstart.
• Write, debug and manage the required Perl and shell scripts according to the requirement of the application engineers after installing the operating systems.
• Build both the Software and Hardware Raids on HP PORLIANT / DELL & SUN X86 Boxes. Implement reliable & redundant means of protecting critical data on a server- RAID technology.
• Installation / Configuration & Maintenance of VERITAS Clusters.
• Network management tools like Cisco NetRegistrar& Network Management Application.
• Ability to deploy, support, and diagnose real issues for a production environment.
• Experience with NIS, NFS, BIND, Sendmail SNMP, TFTP, Iptables.
• Installation, Configuration and Management of LAMP server.
• Backup & Restore using VeritasNetbackup.
• Installed VERITAS Volume Manager and configured RAID 0, RAID 1, RAID 0+1 and RAID 5.
• Configuration of ILO’s on HP &iDRAC’s on DELL Servers.
• Test and apply new software and maintenance patches, including other critical patch management services.
• Administering performance tuning tasks.
• Installation and Configuration of cluster technologies {SUN CLUSTER & VERITAS Clusters}.
• User and security administration.
• Well versed with SVM {Solaris} and LVM {Linux}.
• Tuning kernel parameters for optimum performance.