PROFESSIONAL SUMMARY

• Professional with 8years’ experience as a System Administrator inRHEL(3.x,4.x,5.x,6), Ubuntu SUSE, Solaris (9/10), IBM AIX (5.x, 6.1, 7.1),HP - UX, Netapp’s ONTAP (7.3, 8.1), ESX (4.x, 5.x)EMC Storage, AWS and System Administration.
• Experience in Design, configuration, implementation and configuration of LAN & WAN using UTP and fiber optic cables.
• Experience in Installation, Configuration, Backup, Recovery, Disaster Recovery, Maintenance, Support of HP-UX & Sun Solaris. Experience in Migration from Sun Solaris to Linux. Upgraded Solaris 8 to Solaris 10.
• Day to Day administration tasks - adding and removing users, file, share permissions, trust management, replication management, server backups and server setups on AIX, LINUX (RHEL, SUSE, Ubuntu). Server health monitoring and system tuning as per vendor recommendations.
• Experience in implementation and maintenance of VMware, DNS, DHCP, NIS, NFS, SMTP and AmazonLinuxinstances.
• Extensive Experience in handling Hardware issues, Migration and Data Center Operations.
• Worked on Performance Monitoring, resolving network issues & Tuning the system using tools such as - top, iostat, vmstat, netstat, nfsstat, truss, sar, ndd, ithtool, Dtrace, Strace.
• Worked on LinuxUtilities: 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.
• Deployed Java applications/Web-services using CI/CD tools like Jenkins, Puppet in standalone and clustered environments.Extensive experience in support of AIX Operating System, Problem Determination and solution.
• Experience in installation and configuration of SAMBA.
• Experience in installation, configuration, tuning, security, backup, recovery and upgrades of IBM AIX.
• Expertise in System performance tuning, capacity planning and Disaster Recovery planning.
• Experienced in IBM AIX operating system migration, from AIX 4.3/5.1/5.2/5.3 to 5.2/5.3/6./7.1 and extensively performed TL/SP upgrades using AIX OS DVD, NIM server alt disk install/NIMADM to minimize downtime.
• Setup and configure network TCP/IP on AIX including RPC connectivity for NFS. Created mount points for Server directories, and mounted directories on AIX Servers.
• Installation of patches, Security fixes, packages on AIX, Linux and Sun Solaris Servers.
• Documentation: Implemented naming standard; supporting Oracle Database.
• Extensive knowledge on VSphere /VCenter /VMotionoperations in VMWare environment’s.
• Knowledge on VMware Infrastructure Installation & Configuration. Planning and Designing VMware VI3 (ESX3.x/ ESXi 4.x/ Thin ESX and VMware Virtual Center).
• Extensive experience with Virtualization. Expertise in VMware Virtualization solutions, VM Migration & Cloning. Experienced in Enterprise Backup solutions - MSL, ESL, EML, Virtual Library System.
• Proficient in Installation, configuration, maintenance of open LDAP server and applications integrated with Apache Web server and Postfix mail server for user authentication.
• Strong technical background in Storage, Disk Management, Logical Volume Management (LVM) and logical partitioning.
• Experience with Version Control Configuration Management Tools like Clearcase, SVN, Clearquest, Remedy and Puppet
• Worked on Linux and Windows-based systems administration skills in a Cloud Computing and Virtualized environment for AWS.
• Expertise in AWS, experience in implementing new AWS systems and migration of existing systems to AWS
• Experience IaaS managing Amazon Web Services (AWS) infrastructure with automation and configuration management tools such as Chef, Ansible, Puppet, boto, or custom-built.designing cloud-hosted solutions,specific AWS product suite experience. Proficient in using all Amazon Web Services including EC2, EBS, EIP, ENI, ELB.
• Experience in Enterprise VPN and Amazon VPC integration with data center. AWS Trouble shooting. Deploy, manage and operate scalable, highly available and fault tolerant systems on AWS Deploy, manage and operate scalable, highly available and fault tolerant systems on AWS.
• Experience in configuring KickStartservers to initiate installation of RedHat Linux on several machines at once.
• Create status reports, project plans and attend team meetings to coordinate activities.
• Expertise in Volume management, Disk Management, software RAID solutions using Veritas Volume manager 3.5/,4.1 .File system Tuning and growing using Veritas File System (VxFS), planed, documented and supported high availability, data replication, business persistent, fail-over, fall-back Solutions using Veritas Cluster Server 4.0 in SAN environment.
• Worked with Backup Team to Configure the Master and Client Backup servers Using VERITAS Net Back up 4.5/5.0
• Comfortable in working in a Data center environment - swapping of disks, Attaching/Detaching storage, increasing Utilization.
• Upgraded the Fast Storage Server and tape libraries in the network for backup. Managing local and remote printers with Admin tool.
• Also have worked on most of the Storage products like HP MSA, EVA, XP Storage works, EMCCelerra, Clariion&Symmetrix, DellEqualogicPS series &MD3000i, IBMfAAstDSx series, NetApp filers FASxetc and know the basic management functions such as configuring Storage Array from scratch, carving a LUN Group, RAID Level, creating a vDisk and presenting to Hosts.
• Experience in working with HDLM, SAN, NAS, storage systems, Cisco SAN gear and SAN volume controller.
• Experience in connecting to an EMC disk subsystem with PowerPath and MPIO.
• Experienced SAN Management for Sun Solaris/HPUX/AIX/Windows operating systems.
• Knowledge in working with Fiber Channel and SCSI Storage Area Networks (SAN). Experienced with Storage Administration like EMCSAN Administration.
• Planning and coordinating activities related to upgrades and maintenance on the systems
• Experienced in configuring SAN bootable servers/LPARS. Expertise in Tivoli monitoring, Tivoli Storage.
• Experience in working with SAN, NAS, storage systems, Cisco SAN gear and SAN volume controller.
• Day-to-day administration of Netapps infrastructure using Filer view, system manager and CLI. Work on Incidents and changes. Was responsible in maintaining the SLA, to handle all the storage provision (creation/expansion) in the project that was raised by the user.
• Supporting NetApp storage infrastructure for global customers.
• Great Efficiency in installing, configuring and implementing the RAID Technologies using various tools like VxVMand SVM.
• Involved in Batch scheduling, batch scripting, nightly backups and network troubleshooting.
• Good knowledge in Perl scripting & expert in configuring, troubleshooting and administering Apache and Tomcat web servers.

TECHNICAL SKILLS

Operating Systems: IBM AIX 4.3, 5L, 5.2, 5.3, 6.1, 7.1, Cent OS, RHEL 7.x,6.x/5.x/4.x/3.x, Fedora, SUSE Ubuntu, Windows family, Sun Solaris 7/8/9/10/11,MS Dos,Mac OSX, NetappDATAONTAP(7.3, 8.1),DATA ONTAP 7.3 and 8.1versions,VMWARE ESX/ESXi.

Hardware: Netapp filers FAS series, IBM N-SERIES, EMC clarion cx series, Tape Libraries - Sun StorEdge L20/L40/L60, L180 and Storagetek’s 9840 A/B/C Fibrechannel, Sun Fire Servers - E25k, E15k, 12k, E280R, E480R, Sun Enterprise 450/420R/250 server, Arrays - Sun StorEdge 3130, A1000/D1000, EMC DMX (800 and 1000), IBM DS4K, DS5K and DS8K, SVC and Storwize V7000

Languages: Shell scripting, PERL, Bash, Python, HTML

Networking: TCP/IP, DNS, NFS, NIS, SSH, DHCP, HTTP/HTTPS, CIFS, Cisco Routers / Switches and LAN

Fabric Switches: Brocade and cisco Switches

Tools: Sun Cluster 3.2,Netapp CLI, Netapp GUI (filer view & system manager),VERITASNetbackup 6.0,VERITAS Storage Foundation Suite, Solaris Volume Manager.

Backup: IBM Tivoli Storage Manager, VERITAS Netbackup 6.5, Replication manager, Recover point and VM ware

Applications: HACMP, Tivoli (TSM), AWS, VERITAS Volume Manager and Symantec netbackup

Storage Technologies: RAID, LVM, FC, SCSI, iSCSI, Fiber channel, FCoE, SAS, Multi pathing, Backup and recovery, Business continuity and continuous access, Veritas Volume manager, Netapp storage and Amazon S3

Web Technologies: Lotus Domino 5 / 6, Apache 2.0, Tomcat,WebLogic 8.1/10, WebSphere, JBoss, IPlanet, IIS, HIS, Amazon Web Services

PROFESSIONAL EXPERIENCE

Confidential, Baltimore, MD

Senior Linux/ System Administrator

Responsibilities:

• Installation Red hat Linux 5.x, 6.2 and 6.3,upgrade of and Linux operating system. Configuring DNS, DHCP, NIS, NFS in Sun Solaris 8/10/11& other Network Services.Installing Packages with RPM and YUM
• Administration of 1000 + RHEL 5.x, 6.2 and 6.3 servers which includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues.
• Management and monitoring of various services using Service Management Facility and Service Administration.
• Migrate existing on-premises application to the Cloud
• Implement and control the flow of data to and from Cloud
• Identify appropriate use of AWS/Cloud operational best practices
• Implementation and administration of VMware ESXi 4.x, 5.x, vCenter for running Redhat Linux, windows Servers on Production and Development. working with Apache, HTTP, ngnix Server including proxy and caching configurations experience with Java application servers such as Tomcat or Web Sphere Application Server Community Edition
• Working on different blades and different clusters in vCenter.
• Installing RedHat Linux using kickstart and applying security polices for hardening the server based on the company policies.
• Working in Agile Project Management environment to deliver high priority, high-quality work.
• Extinctive knowledge of Agile and Scrum background, JIRA Usage, Iteration Management and Metrics Usage.
• Installed and configured HBA card in SAN storage. Installation, Configuration, Administration and Trouble shooting of ESX 4.x/ESXi5.x, Virtual Center, VI Client .Worked on Negios monitor tool
• Installed & configured Sun Fire 210, V240, V440, V490, V880, 1280 & HP ProlianDL- 320/360/380/560/580 L Servers. Mirrored root disks on all the servers by using solaris volume manager
• Installed, managed Solaris Volume Manager (Configuring mirror/Breaking mirror/metadata bases Solstice Disk suite 4.2.1). Used VMWare for testing various applications on different operating system
• Configured NFS Servers, NIS+ Servers, NIS+ Clients, Diskless clients and Auto clients and automounted the file systems using direct and indirect maps. Also setup entries in /etc/dfs/dfstab in Solaris share file systems and mounted the disks onto the client systems
• Installation of Redhat Linux, Suseand sun SolarisKick start & Jump start.
• Installation through SATELLITE Server.
• Creating Templates, Clones for a VM and Deploying VM from template and OVF template
• Formatted raw disks & partitioned them using the format utility. Created file system using newfs and mounted it. Created devices and special files using mknod
• Day - to-day administration on Sun Solaris which includes Installation, upgrade & loading patches & packages Installation and configuration of Veritas Cluster servers. Added new service group and maintained existing service group.
• Assist with overall technology strategy and operational standards for the Unix domains. Manage problem tickets and service request queues, responding to monitoring alerts, execution of change controls, routine & preventative maintenance, performance tuning and emergency troubleshooting & incident support
• Manage daily system administration cases using BMC Remedy Help Desk.
• Installed and configured Efficiently managed Disk and File system through Veritas Volume Manager.
• Usedvmstat, iostat, SAR, tnsping&netstat, tcpdump to determine the system and network healt, deployed linux and windows virtual machines from pre-configured templates as VM deployer
• Configured and maintained Software Raids using Solaris Volume Manager, VERITAS Volume Manager 3.0.1, Logical Volume Manager (LVM) and Hardware Raids in and A5000 Arrays using Sun Store Edge RAID Manager 6.2
• Clustering and Cluster management on the servers using VERITAS Cluster Server 2.0 & 3.5.
• VERITAS Netback up installation and maintenance Backup/restore & Disk/Volume management with Veritas Volume Manager on Sun SPARC Storage Arrays & Multi-Packs. Installed, managed Verities Volume Manager 3.5 (VxVM) on Solaris 9
• Configured HP c7000 storage with various types of blades HP BL680c/460c etc. Installed Solaris 11 on HP DL 980 G7 and connected to P2000 storage.
• Provides accurate root cause analysis and comprehensive action plans. Works closely with HW/SW vendor support teams to resolve problems quickly
• Backup Scheduling using the full and incremental backups on tapes and taking backup/restores using ufs dump and ufs restore commands
• Performed day-to-day administration tasks like User Management, Space Monitoring, Performance Monitoring and Tuning, alert log monitoring and backup monitoring.
• Maintain and schedule company backups and participate in disaster recovery planning, Zoning on Fiber Channel Switches, load balancing the network.Monitor and maintain the disk space, backup systems and tape libraries and Implement change controls, capacity planning and growth projections on the systems
• NetApp FAS 2020, 2050, 3040, 3140, 6040 series Filers, IBM N-SERIES. Proficient in SAN / NAS technologies, Planning, preparation and implementing data ontap upgrades.
• Experience in and Data ONTAP management. Expertise in Creating and Managing the Aggregates and volumes (flexible & traditional).
• Handled Performance Monitoring in File system CPU, Memory and Process in all the UNIX Servers. Written shell scripts to take backup oracle database. working on storage sizing, performance and high availability on the Netapp filers experience with NetApp Data Protection backup including snap copy and snap mirror for local and remote secondary copies
• Problems & performance issues; installed latest patches for Sun, Linux and Application servers, Performed Solaris and Red Hat Linux Kernel Tuning.
• Providing 24x7 supports to various application level server level & network level Monitoring & troubleshooting of any datacenter outages.
• Day - to-day administration on Sun Solaris, RHEL 5/6/7 which includes Installation, upgrade & loading patch management & packages.

Environment: Linux 7.x/6.x/5.x, Oracle 10g, SUN Servers, Solaris, HP-UX, ESX, SUN Fires, Linux, Jump Start, Shell Script, VM ware, Autosys,Netapp,Veritas Volume Manager (VVM), LDAP, EMC Storage SAN, Veritas Cluster Server (VCS), VMware servers, jboss, Websphere.

Confidential, Atlantic City, NJ

Linux/System Administrator

Responsibilities:

• Installation, Configuration and Upgrade of Solaris 8/10 and 11,Redhat Linux RHEL 4/5/6/7operating systems.
• Installation, Configuration, Administration and Trouble shooting of ESX 4.x/ESXi5.x, Virtual Center, VI ClientKnowledge of Boot Process of Redhatlinux on Intel Machines.
• Experienced Installing, Configuring and supporting VMware ESX 3.4 and 4 versions.
• System administrator responsible for maintaining Linux/Unix operating systems suc, CentOS, Solaris and AIX servers.
• Installation, configuration and maintenance of NFS, DNS, NIS and DHCP.
• Performing package administration on Linux using rpm, yum and on Solaris usingpkgadd.
• Implemented the project to roll out new sun client hardware and Solaris 11 OS.
• Installed configured and administered Solaris containers and creating Zones.
• Mirrored root disks using Sun Volume Manager and configured RAID 5 soft partitions.
• Installed patches and packages as needed; installed and configured new hard drives and memory.
• Regular disk management like adding of new disk to diskgroup, giving the space to existing groups and increasing the file system in Veritas Volume Manager.
• Migrated disks under VxVM from EMC to Hitachi by mirroring without downtime on RHEL and Solaris production servers.
• Installed and configured Veritas Storage Foundation and High Availability 6.0 for implementing clustering for Oracle RAC that require high availability.
• Installing middleware web and application servers like Apache, IIS, JBoss&Websphere.
• SQL server, Oracle database and Oracle RAC installation on Solaris 10 &RedhatLinux 6.
• Deployment and configuration of HP G6 and HP G7 blade servers for production environment.
• Installing RHEL 6.x using kickstartand configured hostname, IP, DNS and NIS on HP blade servers to move them to production.
• Performing day-to-day admin activities like managing LVM, file systems, user creations, DNS changes and device configuration.
• Installing the SAN HBA cards and adding the LUNS for the user disk groups.
• Managed shared NFS files system, mounting and un-mounting NFS server, NFS client on remote machine, sharing remote file folder, starting and stopping the NFS services.
• Monitor all UNIX Servers for CPU utilization, network traffic, and hard drive space.
• Scheduling various System admin tasks using crontab.
• Have performed network backup, restore and archiving of network clients using TSM.
• Participate in installing and configuring of UNIX/Linux based Oracle 10g products Configured NPIV for storage & backup purposes. Worked on installation of Power path on all Linux, AIX and Solaris boxes
• Used VMWare for testing various applications on different operating system. Migrating vMotion and VM and VMKernel pot from standard switch to distributed switch .Using P2V tool to change the Physical to VMs
• Creating Templates, Clones for a VM and Deploying VM from template and OVF templateDeploy ba server appliances. Experience in using VERITAS Volume manager. Creating new file systems, mounting file systems and un-mounting file systems.
• Implementation of RAID techniques and the creation of Disk groups and volumes, plex using Veritas Volume manager.
• Worked on installation of Power path on all kinds of Linux, AIX and Solaris boxes
• Migrating AIX OS from AIX 4.3 to 5.1, 5.2 and 5.3, 5.3 to 6.1 on models of p-series hardware.
• Configured and install Zones - identify zone components and zonecfg resource parameters, allocate file system space, describe the interactive configuration of a zone.ImplementedSUDO, SSH and other security tools & implemented SOX (Sarbanes Oxley) security compliance, Trouble shooting of day to day system and user problems
• Build and configure large AWS environments. Efficient in buildingincludingEC2, EBS, EIP, ENI, ELB,VPC, Puppet & Scripting. AWSTroubleshooting monitoring, logging and cost management tools that integrate with AWSprevious continuous integration and deployment expertise
• Experience with creation and maintenance of Hosting Environments. Proficient with Jenkins and Git for continuous integration and delivery .Expert in Apache, Tomcat, Jetty or similar servers.
• Designing cloud-hosted solutions, specific AWS product suite experience. Knowledge of networking and security concepts.Experience in Enterprise VPN and Amazon VPC integration with datacenter
• Planned/Created/Installed/Configured two Dual Virtual I/O servers with SEA failover, MPIO and link aggregation on p7 servers.
• Performed testing to verify failover and fallback of Dual VIO server on p7 servers.Analyzed and resolved hardware and software issues. Copied all users from exiting production server to new dev server.
• Performed 60 hours DR exercise for Tier 1 servers environment. also administrative tasks such as System Startup/shutdown, Backup strategy, Printing, Documentation, User Management, Security, Network management.Installed and configured IBM Ultrium Tape library.
• Responsible for testing a mutual takeover configuration in a HACMP environment.
• Configured event notification to monitor devices beyond control of HACMP.
• Design and Deploy In house (Private Cloud) using eucalyptus and Openstack on Centos and Ubuntu OS
• Administered file system and volumes using Solaris Volume Manager on Solaris 10/11
• Provided on-call 24/7 debugging issues related to Solaris 10/11 and Red Hat Linux
• Support for Linux/Unix systems administration, operational support and problem resolution for server systems Created sharedNFS files system, mounting and un-mounting NFS server, NFS client on remote machine, sharing remote file folder, starting &Stopping the NFS services
• Created Storage Group, Zones, volume groups, and different RAID’s using EMC Utility and responsible for backup and recovery using NetApps Snapshot.
• Creating user environments in .profile file as per the user requirement.
• Troubleshooting and analysis of hardware and software failures for various UNIX servers (core dump and log file analysis).
• Evaluating all the servers email notifications and checking the health of the systems
• Providing 24*7 on-call support on rotation basis and Handling High priority incidents through bridge calls.
• Setup of full networking services and protocols on UNIX, Applications and print servers to insure optimal networking and printing functionality. Experience in working with gear and SAN volume controller.
• Repaired bad spots on the disk using repair and analyze. Used format and fdisk/Parted for disk configuration and disk crash recovery. Strong experience in Administration and Maintenance of WAS ND clusters (vertical, horizontal) and deployment of applications in highly available, load balanced production environments.
• Providing 24 x 7 supports to various application level server level & network level Monitoring & troubleshooting of any datacenter outages. Experience in DNS, NIS, NFS, LDAP, Send mail, ftp, SSL, SSH, HTTPS, SFTP, and system troubleshooting skills. Well versed with Shell Scripts;.

Environment: Linux (RHEL 4.x &5.x), Sun Solaris 11/10/9/8/7, CentOS (5.x & 6.x), Ubuntu, Oracle 11/10g, Redhat Linux RHEL 4/5/6/7, ESXi, AIX 4.3 to 5.1, 5.2 and 5.3, 5.3 to 6.1, Virtual Center, VMWare,VIClienton p5, p6 550,570-MMA, p7 710, 750, 770, HP Servers,IBM (P,N,X series) HP SIM, HDLM,SAN, NAS, storage systems, Cisco SAN, NIS/NFS, DNS, SSH, DHCP, NIDS, FTP, TCP/IP, ARP, HTTPS, SFTP, SSH,Centreon/Nagios Monitoring, Apache, Tomcat, Python, Shell Scripting, Bash, RedHat Cluster, NetApps, LDAP, EMC Storage SAN. KORN and BASH

Confidential, Virginia Beach,VA

Linux/System administrator

Responsibilities:

• 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.
• Deployment of UNIX /Linux, Solaris VERITAS and Build of various environments.
• Provisioning and support of Production, QA and Developers environment.
• 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.
• MTA applications QMAIL, POSTFIX., administration of High Availability clusters using RHCS, Multipath, Ethernet bonding and GFS cluster file system.
• 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.
• Performed daily housekeeping functions, such as establishing new accounts, creating and resetting passwords, developing, scripts,performing system backups and recovery, and installing software patches and updates.
• Developed Cron jobs and Shell Scripts (Shell, Python) for automating administration tasks like file system management, process management, backup and restore.
• Created Storage Group, Zones, volume groups, and different RAID’s using EMC Utility and responsible for backup and recovery using NetApps Snapshot.
• Repaired bad spots on the disk using repair and analyze. Used format and fdisk/Parted for disk configuration and disk crash recovery.
• Design and Deploy In house (Private Cloud) using eucalyptus and Openstack on Centos and Ubuntu OS
• Installed and maintain puppet-based configuration management system
• Deployed Puppet, Puppet Dashboard, and PuppetDB for configuration management to existing infrastructure. Deployed mcollective for orchestration.
• Using Puppet configuration management to manage site on EC2 Amazon, Rackspace public cloud. Configure of Caching technologies like Aicache internally, and Akamai externally for better site performance.
• Configure and managing LVM on Linux using tools like lvextend, lvcreate, resize2fs etc
• Configured Open source tools like Nagios, Cacti, OSSEC, Zabbix, Centreon for Monitoring
• 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. Developing scripts in PERL and SHELL to automate the process. Installed and configured Solaris 10 servers with Zonesandcontainers on SUN M5000 and T2000 Servers with SUN ZFS.
• 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.
• 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.
• 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 installing, configuring, maintaining, upgrading and troubleshooting EMC powerpathon Solaris 10 and Linux. 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.
• Mutli-tier application environment with Weblogic, WebSphere. Mission Critical 24x7 Servers support.
• Configuration and Installation of JBOSS 4.x on Linux servers.Installed and configured JMX-based services on JBOSS. Define Mapping Servlets, Filters, and Session Configuration on JBOSS
• Done with LAMPSetup in Ubuntu, MySQL setup, Performance Tuning, Replication, Commands, Backup and overall Administration.
• 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. Tuned servers for maximum efficiency for Oracle and MySQL Data Bases.
• Performed workstation and server installations and upgrades, standardized workstation configuration, automounter, sendmail, and hardware upgrades; administration support and troubleshooting duties in a 24x7.

Environment: Linux (RHEL 4.x &5.x), Sparc stations 20,Sun Solaris 11/10/9/8/7,, Sun V440,V 20 T5240,CentOS (5.x & 6.x), Ubuntu, Oracle 11/10g, HP Servers, HP SIM, Cacti, Zabbix, OSSEC, Centreon/Nagios Monitoring, Veritas Operations Manager., Apache, Tomcat, Python, Shell Scripting, Bash, RedHat Cluster, JBOSS AS 4.x, F5 Load balancers, Net Apps, LDAP, EMC Storage SAN and Switches.

Confidential

Linux/System 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 Kick Start server as required for the project.
• Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA, Staging.
• Primary responsibility includes building and supporting Solaris/ Red hat Linux 3,4 servers.
• Monitoring CPU, memory, 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.
• Assisted in configuring the application servers with other components such as database, web servers, LDAP directory, Active Directory, BEA Web logic etc.
• Extensive use of Veritas Volume Manager for Disk management, file system management on Sun Solaris environment.
• Installation and configuration Veritas NetBackup on Sun Severs.
• Extensive use of Kornshell,Bash for scripting.
• Expertise in Linux backup/restore with tar including disk partitioning and formatting.
• Involved in Planning, building and Administration of various High Availability clusters and heart beat checking on Sun Solaris using VCS in heterogeneous SAN environment.
• Regular disk management like adding / replacing hot swappable drives on existing servers/workstations, partitioning according to requirements, creating new file systems or growing existing one over the hard drives and managing file systems.
• Planned, scheduled and Implemented OS patches on both Solaris & Linux boxes as a part of proactive maintenance.
• Worked with other IT teams including Database and Network Teams, customers (users), and other managers in helping build and implement systems and standards.
• Involved in migration of projects from one flavor to another one.
• Involved in development, user acceptance, performance testing, production & disaster recovery server.

Environment: Solaris 8/9/10, Red Hat Linux 4/5 NAGIOS, Veritas NetBackup, Korn Shell, Bash Scripting, Veritas Volume Manager,web servers, LDAP directory, Active Directory, BEA Web logic servers,SAN Switches,Apache, Tomcat WebSphere, Weblogic application server.