SUMMARY:

• Over 7+ years of experience on various flavors of UNIX (AIX, Red Hat Linux andSUSE) and Experience in System Administration, System Builds, Server builds, Installs, Upgrades, Patches, Migration, Trouble Shooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine - tuning on UNIX (SUN Solaris, Red Hat Linux) Systems.
• Expertise in seamless integration of heterogeneous Unix/Linux environments (Sun Solaris 8/9/10, RHEL 4,5, 6, 7), IBM-AIX, operating systems
• Experience with VM Ware with strong skills in VMotion.
• Proficient in Installation, Configuration, Support & Maintenance of various Sun Spark, E10K, Redhat Linux Servers located at Remote Locations.
• Experience in Incident & defect Analysis, Penetration testing, vulnerabilities analysis, Fail Over analysis, Risk management. .
• Good knowledge of VERITAS products such as Volume Manager( VxVM) & VCS/LVM/RAID
• Extensive experience in NIS, NFS, Samba,Send mail, HTTP, LDAP, SSH, SFTP, SMTP, SNMP, CRONTAB.
• Capacity planning & Performance Analysis, Uptime & Response time analysis.
• Good update of knowledge on all the system and network monitoring tools
• Installation and upgrade of Software & Patches, configuration mgmt, version control, service pack. &reviewing connectivity issue regarding security problem. Maintain various level of documentation. Co-ordinate with change management.
• Experience in Incident & defect Analysis, Penetration testing, vulnerabilities analysis, Fail Over analysis, and Risk management.
• Extensively worked with Version Control Systems CVS, SVN (Subversion), GIT, Perforce, and IBM Rational Team Concert.
• Extensively worked with automation tools like Hudson, Jenkins andBuild Forge to implement the End to End Automation.
• Expertise in using build tools like MAVEN and ANT for the building of deployable artifacts such as war & ear from source code. Application Deployments & Environment configuration using Chef, Puppet
• Proficient in System Backup and Recovery from tapes using ufsdump, ufsrestore, tar and cpio.
• Well versed in configuring Volume Groups and Logical Volumes, extended logical volumes for the system growth needs using Logical Volume Manager (LVM).
• Experience in Backup, Job Scheduling, and Troubleshooting TCP/IP network problems.
• Installation, Configuration and troubleshooting of system security applications like SUDO, SSH, Power Broker and eTrust.
• Independent problem solving and a good team player with strong interpersonal and communication skills.
• Experience in installing, configuring and maintaining WebSphere Application Server.
• Experience supporting 24x7 production computing environments. Experience providing on-call and weekend support.

TECHNICAL SKILLS:

Operating Systems: Linux (RedHat4,5,6 Suse), IBM AIX 7.x, 6.x, 5.x, Windows NT / / Vista.

Hardware: Sun Fire Servers: E25k, E15k, 12k, E280R, E480R, V240, 420R, V440, V480, V490, V880, V, E6900 and E2900. Data Centre Servers: E250, E450, E3000 and E3500, M5000, M8000, M9000, T2000, T5120, T5240, T5440. P5, 6,7 series.

Languages: Shell Scripting, Bash, Ksh, PERL, C, C++, PHP, JAVA, PL/SQL, HTML, JavaScript

Databases: Oracle 10g/9/8, Sybase 11.5.1, POSTGRESSQL, MYSQL, MSACESS

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

Tools: Sun Cluster 3.2, VMware, VERITAS Netbackup 6.0, Z/View,Tune, VERITAS Storage Foundation Suite, Solaris Volume Manager, Sun Java Studio, sendmail.

Web Technologies: Lotus Domino 5 / 6, Apache 2.0, Weblogic 8.1, WebSphere, JBoss, IPlanet, IIS, HIS, ESX 2.5.1, 25.2 & 3.0 beta.

WORK EXPERIENCE:

Confidential, Wayne, PA

Linux System Engineer

Responsibilities:

• Expert in Kickstart RHEL 5.x and 6.x versions on different hardwares.
• Involved in Planning, building and Administration of various High Availability clusters.
• Updating RHEL systems and softwares using RHN satellite server.
• Experience configuring DNS, FTP, NFS and DHCP on RHEL 5,6machines.
• Experience in administering, troubleshooting and deployment of Tomcat 7.x on RHEL 5, 6.
• Experience in managing and troubleshooting Apache Web servers on RHEL 5,6.
• Configure Veritas Cluster on Linux and Aix environment and support.
• High availability cluster environment configuration and testing.
• Perform trouble shooting on Web and Database application like WebSphere, Weblogic db2, Oracle.
• Responsible for WebSphere and Weblogic application shutdown and restart.
• Installing bladelogic agent and registering servers to bladelogic server and run the Bladelogic jobs for patching, compliance, audit and remediation.
• Implementing new projects builds framework using Jenkins & maven as build framework tools
• Implementing a Continuous Delivery framework using Jenkins, Puppet, Maven & Nexus in Linux environment
• Manage deployment automation using Puppet, MCollective, Hiera, Cutome Puppet modules, Ruby
• Performance Tuning and Troubleshooting Web/Application/Database Servers.
• Planned, scheduled and Implemented OS patches on both Linux and AIX boxes as a part of proactive maintenance.
• Installation, configuration and maintenance DNS servers, Mail servers, FTP servers, NFS, NIS, NIS+, RPM and Samba Web servers on Redhat Linux and CentOS.
• Installation of JBoss 7/6, websphere 7/6 and Written automated scripts to do multiple installation of JBoss on various environments.
• Experience in setting up multimode JBoss cluster and defining load balance rules for the cluster.
• Experience in troubleshooting JVM issues, tuning the system and JVM parameters.
• Implemented tuningofJBoss and linux system parameters as per the client application.
• Successfully migrated client applications from weblogic to Jboss.
• Implemented Websphere application server in Linux and setting up the cell/node configuration.
• Upgrade of VIO servers from 2.1.0.11 to 2.2.3.4. Involved in taking iosbackup, VIOS configuration backup and validated the dual redundancy.
• Installation and configuration of NIM Servers for Network installation of OS and Patch management and distribution.
• Managed storage Area Network, EMC Clariion, V-MAX Symmetrixs, Apple Storage, Zoning and LUN Masking. Multi-pathing Software such as Power path and MPIO.
• Installation and configuration of Oracle RAC 11g on AIX andRedHatcluster nodes and involved in production support for RAC clusters.
• Performed rolling migration of HACMP 6.1 to SystemMirror 7.1.3
• Involved in upgrade of servers from AIX6.1TL8 to AIX7.1TL3.
• Run Bladelogic jobs for patching of AIX 6.1 and 7.1, compliance, audit and remediation.
• Worked on File systems issues and maintained F/S as per clients, database and application requirements.
• Support in applying Patches, Installing patch bundles on AIX and Redhat Linux.
• Oversaw the installation, upgrade, and migration for AIX6.1 and AIX 7.1.
• Performed package installations, maintenance, periodic updates and patch management.
• Patching, applying efixes, APARs and upgrading TL and SP to latest levels

Environment: F5, RHEL 5,6, AIX 6,7, tomcat 6,7,Jboss 6,7, apache, mysql, P750,770, VCS, LDAP, OpenStack, Vmware, Hobbit Monitoring, IBM blade center, HP proliant,Oracle,SAN, Servers: Sun M5000,T5120, Sun V880,V890.

Confidential, West Haven, CT

Linux System Engineer

Responsibilities:

• Primary responsibility includes building and supporting AIX/Redhat Linux 5,6 servers for Enterprise Preference Management System project.
• Designed, built, installed and configured Red Hat Enterprise Linux servers & workstations
• Created and administered RedHat Enterprise Linux operating systems to implement on the existing network.
• Oversaw the operation, maintenance and integrity of a distributed, networked AIX based environment
• Worked on VIOS and NPIV client Storage migration.
• Installed RHEL 5,6 operating system using Kickstart on HP Proliant, Dell, IBM blade hardware
• Configured DNS,FTP,DHCP,NFS on RHEL 5,6 servers
• Installed and configure JBoss and websphere application server and provided the production support to resolve the oncall issues.
• Expertise in using build tools like MAVEN and ANT for the building of deployable artifacts such as war & ear from source code. Application Deployments & Environment configuration using Chef, Puppet
• Used Jenkins, Build forge for Continuous Integration and deployment into Tomcat Application Server.
• Managed SVN repositories for branching, merging, and tagging.
• Administration and setting up Oracle RAC on RHEL 5.x servers
• Installed/administrated TCP/IP, NIS/NIS+, NFS, DNS, NTP, auto mounts, send mail and Print servers as per the client’s requirement.
• Responsible for configuring LPAR for Production/Test environment and configured disks/storage/DS4000 connections
• Responsibilities include day to day tasks such as file transfer, creating account, creating logical blocks, monitoring the server and application, running the script. Solving the hardware issues
• Installing, upgrading and configuring Redhat Enterprise Linux 5.x, 6.x, CentOS 4.x on HP servers using kickstart installation, also performed manual upgrade through YUM installation.
• File System Management on Sun Solaris & Linux environments.
• Performed Zone installation, configuration, and migrations in Solaris 10 environment.
• Providing technical support to the customers on all Unix server related issues within the SLA.
• Assisted in configuring the application servers with other components such as database, web servers, LDAP directory, Active Directory, BEA Web logic, EAI, Business Objects etc.
• Extensive use of Veritas Volume Manager 4.1 for Disk management, file system management on Sun Solaris environment.
• Installation and configurationVMware, Veritas Net Backup5.1 on Sun Severs and performing Backup using VNB.
• Unix User(individual & Application) accounts, Groups creation setting passwords,homedirectories and assigning permissions to them with Manager and resource owner approvals.
• User account Management in a Complete NIS environment,pushing maps to NIS slave servers with all the user home directories in auto mounted production systems.
• Automated server backups on a monthly, weekly and daily basis using Shell Scripts.
• Writing Perl, shell scripts for automation of log activity of application process and CRON jobs.
• Performed system administration of UNIX servers by using Operating Systems of Redhat Linux, HPUX, Solaris and AIX.
• Installed, configured, and maintained WebLogic and Oracle DB Servers on OS Redhat Linux and AIX.
• Performed Decommissioning on AIX, HP-UX Servers.
• Involved in applying Patches, Installing patch bundles on Solaris, AIX, HP-UX and Redhat Linux.
• Configuration of Hardware and Software RAID on Digital & Sun Servers.
• Working with Engineering Team to build New Linux and AIX Servers,
• Expertise in performance monitoring using TOP, IOSTAT, VMSTAT, ZVIEW and SAR.
• Integrating UNIX file systems using packages like SAMBA. Setting up printers on UNIX / NT machines to work seamlessly across platforms. Administering NFS Mounts.
• Extensive experience in Installation of Oracle RAC on Solaris 10 and AIX (5.3/6.1) environments, Configuring of nodes, Virtual IP, Private and Public network for Oracle RAC.
• Configured any storage or storage network problem and provided solutions to complex SRM (Storage Resource Management) software problems to realize full potential.
• Backing up and restoring files across the network, Performed OS upgrades and Patch loading as and when required.
• Plan, design, Implementing, Installation and configuration of Operating System upgrade on Red Hat Linux 4.0 on & HP-Dl585 servers.
• Experience in Developing KORN, BASH, JAVA, PERL, Python shell scripts to automate cron jobs and system maintenance. Scheduled cron jobs for job automation.
• Involved in postproduction support for solving complex TICKETS.
• Performed IBM Totalproduct Storage Installation on different Operating Systems.
• Supporting various applications on UNIX environment.
• Software Deployments on request basis for production environment.
• Building Task Plans for all S/W deployments and review with Application teams.
• Coordination with off-shore team to implement any changes in production Environment.
• Day-Day application support on production and technical documentation for critical prod issues, On call pager support 24/7 environment.

Environment: Solaris 8, 9 & 10,SLES 9,10 & 11, RHEL 5.34.4.6, AIX 5.3,6.1, HP-UX 10.24, 11.11, 11.23, E10K, E25K domain servers, Sun Fire V 0, v220, v240, Sun Blade servers, HP RX6600, Web sphere 6.1, VCS, VVM, Remedy (Ticket Monitoring Tool), Z/VM 5.4 &6.1, EMC Storage SAN, Veritas cluster server, Hypervisor, Service Guard Cluster 11.18, Solaris/Veritas volume manager, Ldap, HMC, IBM Tivoli Storage Manager 5.4/5.3, NIM, Vmware, SB Client 5.4.1 RAID, Jumpstart, kickstart.

Confidential - Wilmington, DE

RedHat Linux System Administrator

Responsibilities:

• Responsible for Installation, Configuration Management, Maintenance and Systems Development of over 100 Redhat Systems and Aix Systems.
• Provided Level - 3 Linux support for primarily AIX 5.2, 5.3 on IBM P-Series HW and Redhat Enterprise Server on HP Opteron hardware.
• Installation and Administration of Red Hat Enterprise Linux 3, 4, 5 SLSE10 using Kick startincluding performance monitoring, scaling and capacity planning and hardware maintenance of Sun fire servers.
• Provided steady state support by 24X7 shift rotation basis and pager support.
• Good knowledge of Advanced Power Virtualization on IBM System P5, P6.
• Monitored load balance on servers and performed server health checks.
• Performed routine operational LINUX system administration duties.
• Provided technical supporting onsite and remote servers for all Corporate, Market Data, and print UNIX based servers.
• Installed and verified that all Linuxpatches or updates are applied to the servers.
• Upgrades on Linux and expertise in writing shell scripts utilizing different shells including BASH, KORN, JAVA and C-Shell.
• Monitored load balance on servers and performed server health checks.
• Worked on File systems issues and maintained F/S as per clients, database and application requirements.
• Raid Volume creation, user creation and data removal processes for Snap Servers on day-to-day basis.
• Responsible for Installation, Samba Server and IBM HTTP Server.
• System administration support to developers, support for Tomcat, Weblogic web servers, installation/support ofPHP and Java programs.
• Administered Apache web servers, MySQL databases, mail, DNS, ProFTPd, and CVS.
• Apache tomcat, Jboss, siteMinder and Identity Minder administration and support.
• Responsible for the operation, maintenance and integrity of a distributed, networked Linux/AIX based environment.
• Installation and configuration of node with respect to other web application server as web logic server.
• Configured HACMP 4.5 to monitor, detect and react to failure events, allowing the system to stay available during random, unexpected software problems and also configured to react to hundreds of system events.
• Configured volume manager, backup groups, logical hosts, and data services, and bringing up the cluster. Performed User Account management, data backups.
• Very good experience in writing UNIX shell scripts to FTP files between different environments.

Environment: Solaris 10, AIX 5.3/5.2/5.1 on IBM Pseries Server, Red Hat AS 4.0/3.0, HMC-LPAR, HACMP 5.3/5.2 Cluster management, EMC Storage SAN, Z/VM, Veritas cluster server, Solaris/Veritas volume manager, Ldap, IBM Tivoli Storage Manager 5.4/5.3, NIM, Korn shell scripting,Vmware, Websphere, Web logic 8.1.

Confidential

System Administrator

Responsibilities:

• Worked as Unix Administrator in IT infrastructure environment providing server administration, application administration and automation solutions to support business objectives.
• Responsible for Installation, Configuration, Support and Troubleshooting existing systems in AIX 4.3.3 / 4.5/5.1 L, Hp-Ux 11.23 operating environment.
• Maintained WebLogic and Oracle DB Servers on AIX and Linux.
• Responsible for the operation, maintenance and integrity of a distributed, networked AIX based environment.
• Provided 24X7 on call production support.
• Instituted centrally managed Linux configurations for application deployments, disaster recovery.
• Responsible for customer and advisor facing web services with a volume of 4 million hits per day.
• Build AIX Lpars, Installed AIX 5.2, 5.3 on LPAR using NIM.
• Successfully tested and documented the alternate disk install procedure to clone O/S.
• Installed and configured of Solaris and Linux servers using JUMPSTART and KICKSTART installation and periodic Patch. Upgrading using Live upgrade.
• Troubleshooting hardware and replacement of failed components running on LINUX and SOLARIS environment, Performance tuning activities like allocation and monitoring of disk space using Disk Quota system.
• Manually managedDNS, FTP, NIS, and HTTP, Accountmanagement, Samba, NFS, Auto mount, VNC, Diskmanagement, NTP, package update, OS installation and taking its image.
• Installed and administered DNS, NIS, NIS+, NFS, and Sendmail for centralization and firewall setup with iptables on Solaris and Red Hat.
• Backup management using CRONTAB, running the backup based on client requirements.
• Performed many activities from the change/problem management systems.
• Performance monitoring of servers using top, sar, iostat, vmstat.
• Provided highly available data services to users using Solaris volume manager (SVM) and Logical volume manager (LVM).
• Created and maintained user accounts and print queues, installed tools/compilers including GNU required by the environment and maintained their licenses.
• Resolved config issues and problems regarding NFS mounts, NIS maps, user ids, rpminstalls, driver installs.
• Configuration of Hardware and Software RAID. Disk replacement and File system recovery.
• Used Veritas Volume manager for Storage administration.

Environment: SUN Solaris 2.7/8/9, RHEL 4/5, SUN Enterprise 3500, 6500, 220R, 250, 420R, Enterprise workstations Ultra 80, Ultra 60, Ultra 10, Ultra 2, Veritas Volume Manager 3.0.