SUMMARY

• A Linux/Unix Technical Infrastructure Admin with over 7+ years’ experience. Managed multiple flavors of UNIX systems over the years, and currently managing an environment that consists of RHEL, Solaris, AIX, Windows, VMware Servers.WORK
• Over 7+ years of experience and extensive knowledge in Linux Administration under heterogeneous environments consisting of Red Hat Linux ver 5.x & 6.x, CentOS Linux ver 5.x & 6.x, Suse Linux 11.2, AIX 5/6/7, HP UX, Windows 2003/2008 R2/2012, VMWare 4.x, 5.x.
• Extensive experience in installation, configuration, maintenance, design, Administration, implementation, and support on Linux, AIX Environment.
• Experience working with DNS/DHCP/LDAP/NFS/NIS/NIS+, BIND, Send mail SNMP, TFTP, Iptables services.
• Proficient in building and managing configuration management frameworks such as Ansible, Puppet.
• Experience working in a Cloud based environment including Amazon Web services(AWS)
• Design, investigation and implementation of public facing websites on Amazon Web Services (AWS)
• Creating and maintaining user accounts, profiles, security, rights, disk space, and process monitoring
• Patching different software using Redhat package manager and YUM and installed certain RPM packages.
• Experience in installing and configuring Redhat Linux servers using kickstart and pxe boot.
• Installation and configuration of web hosting administration such as FTP, SSH, Telnet, and HTTP
• Installation of kernel level patches and software packages on Linux and AIX.
• Strong knowledge of system performance and monitoring tools like netstat, vmstat, iostat, prstat, sar, etc.
• Installing, configuring, and maintaining Apache, Samba, Web logic and Web sphere application servers and, Oracle, SQL and Sybase database technologies.
• Implemented automated server provisioning using Ansible and puppet.
• Knowledge on cloud computing software platform like Openstack.
• Profound experience providing Web application support.
• Skilled with WebSphere, Tomcat and Apache Web & Application Servers.
• Proficient in UNIX shell programming, patches installation and trouble shoot the cause of failure and monitoring of logs on UNIX systems.
• Administration on Volume Management: Linux LVM, SVM.
• Installation Configuration & Administration of VERITAS Volume Manager, VERITAS Cluster Server 5.0, VxFS.
• Managed Red Hat Linux Satellite Server.
• Administration on clusters: Veritas Cluster VCS and Linux cluster
• Experience in PERL, Shell and PYTHON Scripting.
• Extensive experience in Advance installation techniques like Kickstart/Jumpstart
• Installation and configuration of Solaris Zones and ability to work with ZFS/SMF/POOLS.
• Experience in SUDO administration, creation of Volume groups, logical volumes, file systems, trouble shooting file system mounting problems, Implementing RAID levels, user account management and SSH Implementation
• Performing Linux OS Installation, migration, up - gradation and maintenance, from Operating System implementation to application & database implementation, take centralized backups & restore them, applying APAR fixes, patches and service packs and Linux RPM patches.
• Experience in Cloud and Virtualization.
• Have knowledge on Installation and configuration of File server, Print Server, Application server, Mail Server, Remote server, DHCP & DNS.
• Having good knowledge on F5 Load balancing.
• Experience providing system administration support for enterprise business applications including financial, engineering, web applications. These include Oracle, DB2, SAP, People soft, Web logic, Web sphere, and Apache.
• Deploy, manage, and troubleshoot VMware VSphere 4.x,5.x, VMware View, VMware vCloud Director, VMware SRM.
• Experience with different hardware such as HP, Cisco UCS, DELL, Confidential, Netapp, Cisco Switches.
• Design roles and groups for users and resources using AWS Identity Access Management (IAM).
• Extensive knowledge in advance features of ESX VMotion, storage vmotion, HA, FT, DRS and P2V MIGRATION using VMware Converter.
• Creating and configuring Load Balancers and Updating SSL certificates for load balancers.
• Experience P2V, V2V datacenter migrations using VMware standalone converter.
• Experience in working on Heavy Operations based environment and delivering 24/7 support as required by the client.
• Design roles and groups for users and resources using AWS Identity Access Management (IAM).
• Experience in creating VMware Command Line scripts to manage clusters and perform various tasks such as VMotion.
• Worked on multiple ticketing tools like HP Service Manager, BMC Remedy and SM9.

TECHNICAL SKILLS:

Technology Expertise: LinuxAdmin, Shell Scripting, JAVA / JSP / Servlet

Application Servers: Weblogic 11g (10.3.6), JBOSS 3.2.7, JBOSS 4.0GA, JBOSS 6.3.0GA

Operating System: RHEL ver 4.x, 5.x & 6.x, CentOS ver 5.x & 6.x, FreeBSD 8.0, SUSE 10/11Ubuntu 8.04, 9.04, 9.10, 10.04 LTS, 12.04 LTS, 13.10, 14.04 LTS

Servers Experience: DHCP Server, SAMBA, DNS (Bind 9), MySQL, PosgreSQL 8.0, NFS

Web Servers: Tomcat 4.1/ 5.5, Apache Web Server 2.4 / 2.3 / 2.0 / 1.2 , WebSphere MQ, WebSphere.

Middleware: JBoss 4.0, JBOSS 6.3.0 GA

Databases: Oracle, MySQL SQL SERVER 2005/2012

Platforms: Redhat Linux, IBM-AIX, FreeBSD, Windows XP/ 2000/2008/2012/ NT/95/98

Version Control: SVN, CVS, Maven, Jenkins

Clouding: OwnCloud, OpenStack

Scripting: Python, UNIX Shell, Perl, PHP

J2EE Technologies: JSP, Servlet, JDBC

IDE: Eclipse, Netbeans 6.8, Netbeans 7.3

Automation /Configuration: Ansible, Puppet, Chef, Cronjob, Shell script base automation

Monitoring Tool: EM7, HPOV, Nagios

PROFESSIONAL EXPERIENCE

Confidential, San Francisco, CA

Systems Administrator (Linux, VMware)

Responsibilities:

• Responsible for ensuring Systems & Network Security, maintaining performance & high availability of Servers, Network, Databases & applications. Disk Management partitioning tools like format, file system management ext4, ufs, file system utilities.
• Maintaining all systems in smooth running condition and to reduce the downtime.
• Maintaining the network availability and uptime at all levels and times
• Automating system jobs through Crontab.
• Implemented automated server provisioning using ansible and puppet.
• Experience in installing, configuring, supporting and troubleshooting Unix/LinuxNetworking services and protocols like NIS, NIS+, LDAP, DNS, NFS, DHCP, NAS, FTP, SSH and SAMBA.
• Experience in installation and configuration of Web Apache, JBoss, and IPlanet, BEA WebLogic, Websphere, LDAP.
• Responsible for Installation, configuration, Maintenance, Deployments, Monitoring, performance tuning, JVM Load/Stress Testing of WebSphere App Server 6.1 on Linux servers.
• Resolve technical issues through diligent research, reproduction, and troubleshooting.
• Creating Virtual Machine Profiles in Vcenter Server, allocating storage and installing Redhat Linux using kickstart.
• Installation, Administration ofWebSphere MQ, WebSphereon various platforms like AIX, Linux,
• Configured MQ Objects within the WebSphere Application Environment.
• Worked with SAN team on the provisioning of storage for the new build server and mounting the SAN ( Confidential, Netapp) and NFS storage to the file systems with right permissions.
• Used VERITAS Volume Manager for Disk Space management.
• Administered Linux servers for several functions including managing Apache/Tomcat server, mail server, My-SQL database, and firewalls in both development and production.
• Troubleshooting any and all problems with performance, upgrades and file transfers.
• Integrating UNIX file systems using packages like SAMBA.
• Maintained user account management, configured servers to register with Red Hat Network (RHN) Satellite Server, monitored servers - workload assessment, service console monitoring.
• Acquiring & Initializing LUNs in clustered & standalone environments.
• Written Shell and Perl Scripting for automation of jobs and Performing O/S and kernel upgrades on Linux servers.
• Performed OS patching on Linux and AIX server on quarterly basis.
• Installation and configuration ofLPAR'swithAIX 5.3, 6.1 onp5servers.
• OracleRAC, NDM, WebSphere, VERITAS Netbackup and IPlanetinstallationandsupport on AIX and Linux servers.
• Manage systems using remote consoles like ILO for HP and DRAC for Dell Hardware.
• Troubleshoot backup issues, perform manual backups & restore using NetBackup.
• Managed Disks and File systems using LVM on Linux, Kernel patching.
• Upgrading the ESXi hosts from ESX 4.0 to ESXi 5.5 and its firmware using Update manager and manually.
• Good knowledge on HP and CISCO hardware and their generations.
• VMware ESX server hardware setup in all sites with HA/DRS Clustering/Vmotion.
• Worked with LabManager, vCenter, vSphere and vCloud Director.
• Moving hosts from one Vcenter to another Vcenter by recreating the vDC and clusters, permissions and also manually recreate the permission sets.
• Server Migrations: P2V/P2P/V2V using Platespin/Double-take and VMware converter.
• Participated/coordinated in weekly Status meetings and reported on the project status, Incident reports and Change Management for the transition process.
• Worked with citrix 6.5 Virtualization.
• Migrated datacenters and converted physical servers to virtual servers using VMware Convertor.
• Co-ordinate with Data center team for connectivity issues in ESX/SAN and the hardware issues.
• Created and managed Standard and Distributed Switches (dvSwitch) in the vCenter servers for making use of best network design and stability across the vCenter servers.
• Involved in live migration of Virtual Machines and Virtual machines files using the VMotion and Storage VMotion.
• Firmware upgrade on Cisco UCS, HP, Dell along with creating the profiles on them.
• Creation & Troubleshooting of Virtual Network, ESXi hosts, VMotion issues & Virtual Machines.
• Creation of templates from VMs and deploying VMs from templates.
• Responsible for windows patching and upgrade activities (2003 to 2008R2 & 2012 R2).
• Managed and administered Active directory issues in Windows environment.
• Experience in setup, configuration, upgrade, maintenance, performance monitoring and troubleshooting on different platforms like Sun Solaris, Linux, HP-UX and Windows.
• Responsible for designing High Availability Solutions for different applications. Deploying high available squid, LAMP server and MySQL database replication (Master and Slave

Confidential, Denver, CO

System Administrator (Linux, VMware)

Responsibilities:

• Planned and executedLinuxsystem changes and upgrades.
• Linuxsystem Administration, New build and configurations, OS Migration, Creation and
• Maintenance ofLinuxserver and deploying security standards.
• RedhatLinuxbuild & setup for bare metal and VMware.
• Installed, configured and maintained RHEL 5.x/6.x, staging and test environments.
• Installed Patches/Packages and RPM packages on Linux Servers and Upgrading OS levels.
• Installed and configured VxVM, VxFS and VCS on various Servers.
• Creating and configuring VMware virtual machines and installing Redhat Linux using kickstat.
• Configured probe and link based IPMP, worked with disk multipathing for SAN storage, configured and performed backups.
• Worked on building Veritas Clusters from scratch and performed failover and High Availability tests.
• Installing, configuring and maintaining Jenkins on Linux servers.
• Installing, Configuring and maintaining Puppet on Linux and Windows servers.
• Installed and configured all theLinuxservers in the network per specifications of clients.
• Monitored the servers andLinuxscripts regularly and performed troubleshooting steps - Tested and installed the latest softwareon server for end-users.
• Performed routine checks on theLinuxservers of the firm.
• Troubleshooting network and Hardware issues onlinuxservers.
• 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.
• Implemented rapid-provisioning and life-cycle management for UbuntuLinux using Amazon EC2, Chef, and custom Ruby/Bash scripts.
• Monitor, evaluate and administer to a host of network monitoring tools.
• Monitor and maintain the file/CPU system of the application servers to ensure the accessibility for end-users and the application functionality; work with infrastructure team to address application capacity needs.
• Redesign and reimplement DNS infrastructure to reduce complexity, improve performance, simplify administration, and facilitate deployment automation.
• Create file transfer server for customer data exchange.
• Automate network configuration management for all cloud environments.
• System Administrator/Integrator role in a large team responsible for maintaining ofLinuxoperating systems such as SUSE 10/11.
• Install Nova Compute and Controller, deploy instances using the command line.
• Created security groups for both inbound and outbound traffic following the naming convention.
• Created Security groups specific to the infrastructure and included where appropriate as per the requirement.
• Installed, secured, and configured AWS cloud servers withLinux, Tomcat, MySQL, Apache, etc.
• Skilled with Websphere, Tomcat and Apache Web & Application Servers
• Installed configured ORACLE RAC on RHEL 5.x, 6.x Servers.
• ProvidedUNIX infrastructure, operations and support forIBMP-Series 650, 670,690andP5serversP570/590/595runningIBM AIX5. X.6.1.
• Administration of VERITAS clusters by configuring and adding the new resources to VCS, bringing the nodes offline and online, switching the resources in the cluster.
• Installed, configured and administered Esxi 5.1 on HP C7000/Dell power Edge/Cisco UCS Hardware.
• Installed management server (v Center server) instances to enable centralized management of multiple hosts
• Linked different v Center server using linked mode to have a single instance a vSphere client to manage the whole virtual environment.
• Deployed Linuxservers using VMware, building AIX servers using NIM servers, RHN Satellite setup/configuration/maintenance.
• Creating and managing virtual machines and templates, worked with clones and snapshots of virtual machines
• Configured VMware on clustered environment, implemented migration of virtual machines using vMotion, virtualized windows servers using VMware converter and plate spin convert.
• Hot and cold cloning of virtual machines using VMware converter
• Configured VMware HA, VMware DRS in acquiring higher efficiency of VMware infrastructure
• Defined the patch management process for the VMware environment to upgrade the hosts and VM's and successful completion of update manager installation in all the environments

Confidential, Malta, NY

System Admin (Linux, Windows & VMware)

Responsibilities:

• Installation and configuration of Solaris,Linuxfor new build environment.
• VERITAS and Sun Cluster Administration.
• Unix/Linux user's creation, file/dir level permissions, sudo permissions etc.
• Day to day duties for Unix/Linux server maintenance and support to developer's team for their issueswith application, tuning, troubleshooting, software running on Unix/Linux Servers.
• Administered Linux servers for several functions including managing Apache/Tomcat server, mail server, My-SQL database, and firewalls in both development and production.
• Strong experience in supporting IBM-AIX.Also supported RHEL and SUSE server environments.
• Experienced in installation, configuration, tuning, security, backup, recovery and upgrades of IBM AIX.
• Experience in Working on AIX LVM.
• Implemented tool integrations with puppet for automatic monitoring of servers known to puppet
• Skilled with WebSphere, Tomcat and Apache Web & Application Servers
• Administering zpools by creating zpools adding disk to the zpools, adding spare disks to the zpools and involved in replacing the disk failures in zpools.
• Administering Solaris 10 zones by creating whole root zones, deleting zones, installing several software needed by the application team on zones.
• Adding Disks and creating Slices and File System Administration.
• Handling Projects and providing performance and capacity analysis reports and recommendations to customer requirements.
• Cloning, Building and deploying new VM's and installing different guest OS like Windows server 2003/2008/2012 and Linux. Creating virtual NIC's for the respective VM's and assigning the network connections to a particular port group in the VSwitches
• Leveraged VMware infrastructure implementation and consolidation expertise to implement P2V migrations, blade server capacity planning, high availability and failover settings on newly installed blade servers and existing rack mount servers.
• Played role as VMware/windows adminto provide Level 1 &2 supports in complex environment.
• Designed, installed, configured of VMware site recovery manger.
• Monthly and Quarterly Health check reports with performance analysis
• Handling Ad-hoc requests from the customer by providing the reports with Performance and capacity analysis with recommendations.
• Worked with server profile/service profiles on CISCO UCS, HP Servers.
• Configured Management and Resource Cluster, Add Host to a Cluster, Configure its licenses, Network Configuration, DNS and NTP.
• Administration of environment running ESX/ESXi Hosts and Virtual Machines.
• Manage Virtual Machines, Installing VMware Tools, Creating Templates, Cloning, and Deploy Virtual Machines using Templates, Converting Physical to Virtual Machines (P2V).
• Manage user permissions in vCenter Server.
• Manage VMware Distributed Resource Scheduler (DRS), vMotion and High Availability (HA) Clusters.
• Worked closely with Storage and Networking teams to manage the allocated SAN, Fiber and Networking Infrastructure.
• Update the Patches for ESX Servers using VMware Update Manager in Virtual Center.
• Monitor capacity, performance and utilization across all Windows Server and its Hardware.

Confidential, Fishers, IN

System Admin (Linux, Windows & VMware)

Responsibilities:

• Installation, maintenance and regular upgrades of Red Hat Linux Servers using kickstart based network installation.
• Scheduled various regular, periodic, future and queue tasks by using Crontab
• NFS management - take care of user accounts/groups, setting up of NFS environment
• Transferring files from one system to other using FTP and SFTP
• Monitoring server performance and troubleshooting server related problems to SNMP
• Processes administration and management like monitoring, start/stop/kill various processes/sub processes
• Monitor system performance parameters using iostat, vmstat, and fine-tuning
• Systems administration, maintenance, and monitoring various day-to-day operations
• Creating and maintaining user accounts, profiles, and security rights
• Installation/upgrade, system startup, and system shutdown as needed.
• Installation and configuration of Weblogic and Websphere application server
• Installation, configuration, and maintenance of web servers, application servers, and database servers on Linux Servers.
• Faulty Part replacements like Memory DIMM server battery replacement.
• Handling basic issues of Storage like disk replacement and raising service request with Confidential .
• File system housekeepingissues.
• Performing the Change request for the different hardware part replacement.
• Creating the Standard Operation Procedure for different types of issue.
• Ability to write scripts to perform the daily and routine work.
• Deploying auto resolution for an automated ticket with PAS automation.
• Working on hardware failure like failed battery / failed hard disk issue with vendors.
• Renewingthe expired SSL certificate.
• Taking thread dump and heap dump for hung instances.
• As per Vendor recommendation fixing the vulnerability in the Client Environment (like ssh Vulnerability, SSL Vulnerability).
• Configured Management and Resource Cluster, Add Host to a Cluster, Configure its licenses, Network Configuration, DNS and NTP.
• Administration of environment running ESX/ESXi Hosts and Virtual Machines.
• Manage Virtual Machines, Installing VMware Tools, Creating Templates, Cloning, and Deploy Virtual Machines using Templates, Converting Physical to Virtual Machines (P2V).
• Manage user permissions in vCenter Server.
• Manage VMware Distributed Resource Scheduler (DRS), vMotion and High Availability (HA) Clusters.
• Worked closely with Storage and Networking teams to manage the allocated SAN, Fiber and Networking Infrastructure.
• Update the Patches for ESX Servers using VMware Update Manager in Virtual Center.
• Monitor capacity, performance and utilization across all Windows Server and its Hardware.
• Patching theLinuxservers on all the environments (Prod, Pre-Prod and Testing) of Customer.
• Identifying the necessity of the changes to the customer’s environment in respect of hardware as well as application and completing the process of soc validation, approvals and executing the changes.

Confidential, Pittsburgh, PA

System Admin (Linux, Windows & VMware)

Responsibilities:

• User administration, management & archiving.
• Performed automated installations of Operating System using Jumpstart, Kickstart for Linux.
• Installation of patches and packages.
• Installation and configuration of Apache, WebSphere.
• Disk and File system management through LVM (HP-UX, AIX, Linux)
• Experience with configuring and managing Virtual disks, Disk Mirrors and RAID 0, 1 and 5 levels.
• Provided functional and technical support, troubleshooting and diagnosing hardware and software problems, including desktop, laptop, WAN, LAN, and remote systems.
• Assisted in the installation and updating of software, as well as the setup and troubleshooting of all equipment.
• Provided functional and technical support, troubleshooting and diagnosing hardware and software problems, including desktop, laptop, WAN, LAN, and remote systems. Assisted in the installation and updating of software, as well as the setup and troubleshooting of all equipment.
• Maintaining the CPU & Memory utilization of Unix/Linux Servers reports on the WEB.
• Installation, setup, configuration, security administration and maintenance for flavors of servers.
• Implemented Security Hardening per company policy using Solaris 10 features.
• Supported 24/7 high availability production servers
• Complete periodic checks of production and development systems; CPU utilization, memory profiles, disk utilization, network connectivity, system log files, etc.
• Provided top level technical support for HP ProLiant Server hardware and software issues and coordinated all Server related change activity within the Data Center.
• Responsible for documenting and maintaining complete and accurate information for all active and decommissioned servers.
• Demonstrated ability to gather relevant information and diagnose issues effectively and efficiently
• Assisted in troubleshooting user problems relating to Network Connectivity, and TCP/IP configuration.
• Systems Administration, OS Level SAN Administration, Backup and Restore and Security Remediation.
• Configured and maintained servers using VMware ESXi. Experience in working with adding new Disks to the VM from the Hostgroup and
• Extensive use of Logical Volume Manager (LVM), creating Volume Groups, Logical volumes and disk mirroring in HP-UX, AIX and Linux.
• Experience in Setting up and configuring Install Server, Configuration Server and Boot Server for Kickstart process & performed Kickstart to install OS on Several workstations.
• Created users, manage user permissions, maintain User & File System quota on Redhat Linux
• Installation, Upgradation and Management of packages through RPM and also take care of dependencies.
• Performance monitoring and tuning of Linux servers. Creating virtual PCs, installing OS and software using VM ware.