SUMMARY:

• 8+ years of IT experience as a Red Hat Enterprise, Suse, Solaris and AIX Systems Administrator.
• Experience in installing, configuring, managing and administering Linux and Unix platforms like and RHEL 4/5/6/7, SUN - Solaris 8/9/10/11, IBM AIX 5.x, SUSE Linux 10/11/12.
• Installation of O/S from CD as well as over the network using Jumpstart/Kickstart type of mechanism.
• Working experience with Volume management using the solutions, Veritas Volume Manager, Sun Volume Manager and Logical Volume Manager.
• Experience supporting Storage technologies with Unix/Linux and Windows systems like EMC and NetApp with Multipathing.
• Extensive experience in kernel Tuning, Performance Analysis, Load Balancing.
• Performing Backups and restores using ufsdump/ufsrestore, TSM and Veritas NetBackup.
• Setup of remote connection tools like RSC, RDP, Citrix, VPN, and Web based Remote Access VPN, Hosted Virtual Desktop (HVD) VMware horizon Client, Global Network Client.
• Upgrading Solaris and Linux OS, Installing SAU and No Mirror patching. Scripts (RPM/YUM) Satellite config Patching. Configuration Management Puppet, Tiaga for Third Party Packages like WebLogic, Linux /SUN Java, PrivServ, Agilent netx, Active VOS.
• Creation of a Virtual Server environment using RH-Enterprise Virtualization, VMware ESX 3.5/4.0/4.1 ESXi 4.1/5.0, LDOM and Solaris Global/Local Zones.
• Experience in Creating, Configuring and Managing LDOMS.
• Setup of Enterprise Monitoring Tools like Nagios, BMC Patrol and Tivoli.
• Networking setup and support of TCP/UDP and other application layer protocols like SMTP, DNS, LDAP, NIS, NIS+, NFS, DHCP etc.
• Experience with Virtual environment.
• Batch scheduling, batch scripting.
• Installation and support of 3rd party software systems on UNIX & Linux like Web Servers, Application Servers, Middleware and Databases.
• Have performed DBA activities such as Oracle installation, database creation, maintenance and database backup and recovery on SUN hardware
• Comfortable in working in a Data center environment - swapping of disks, Attaching/Detaching storage, increasing Utilization. Negotiating with vendors on hardware replacement using Kodiak Support. (Managed Technical Support Access - IBM.)
• Experience in writing Scripts in Perl, Bash, Ksh for performing automation of various tasks.
• Provided production support in an on-call rotation in a 24x7 environment.

TECHNICAL SKILLS:

Operating System: RHEL 4/5/6/7, Debian 6/7 Solaris 8/ 9/10/11, IBM AIX 5.x, SUSE 10.x, Windows 2003 Server

Web Server: Apache 2.x, SUN ONE, IBM Http

Middle Ware: TOMCAT 5/6, WebLogic Server 8/9/11/12, JBoss 6 and WebSphere 6.1/7

Third party tools: Veritas Storage Foundation Suite 4.0 & 5.0(VxVM, VFS and VCS), BMC Patrol, Nagios, IBM Tivoli

Services: TCP/IP, HTTP, FTP, NFS, DFS, DHCP, LDAP. NIS and NIS+

Hardware/Datacenter Servers: Sun Fire V240, V440, V480, V490, T2000, T5220, E2900, E10k, E15k, Sun M5000, Sun ULTRA 2/5, HP DL Series 380G7/580/580G5, Dell R900/R910/R920/R720 PowerEdge, IBM x3650m3/x3650m4, Cisco Routers and Catalyst Switches

Programming: Shell Scripting, PL/SQL, Perl, JavaScript 1.7 1.8, C++

Databases: Oracle 10g/11i/12c, Sybase, MySQL, SQL Server 2005, DB2 IBM product

PROFESSIONAL EXPERIENCE:

Confidential, Audubon, PA

Linux System Administrator

Responsibilities:

• Perform core administrative duties such as version upgrades, managing permissions and monitoring the platform to ensure it continually meets performance and availability requirements. Support user requests and day to day activities.
• Experience with VMware vSphere virtualization.
• Experience with packaging software for Linux/Unix systems (RPM, DEB, LPP, etc.)
• Worked with Debian 6 to 7 server upgrade
• Worked with creating Virtual Machines and third-party software installation
• Worked on migration from physical to virtual (P2V) environment.
• Tool selection and implementation to support integration with the AIX/Linux platform including Splunk and Puppet.
• Configuration management support for both hardware and software leveraging best practices, software packaging, version control systems. Manage projects for the implementation of new solutions at client.
• Manage, maintain and support middleware software working closely with developers, third party vendors, and customers to ensure a reliable and scalable platform.
• Creating CIP AND NON-CIP tickets for change in production.
• Installation of TSM on servers.
• Worked with Jboss 6.3.3/6.4.5 installation and RPM patches and security patches and building RPMs for JBoss. Experience with JBoss application stack
• Configured and added a custom repository for the SMT (Subscription Management Tool) used for Suse
• Install, configure and upgrade different software on Linux machine.
• Support different application infrastructure.
• Highly skilled at troubleshooting complex server, storage, network, DNS, performance and application issues.
• Worked closely with DevOps team on deployment of instance and configuration change.
• Worked on applications like smart log and load cast application, A-MQ and fuse Jboss application.
• Assisted with puppet setup, managed and created modules for software services and configuration systems
• Worked with patching and upgrade with Suse 11, 12.
• Familiarity with GIT or Subversion version control systems
• Familiarity with Disaster Recovery Concepts.
• Knowledge of IBM, NetApp, and/or Brocade SAN and Storage platforms
• System integration experience with Siemens Spectrum based EMS systems.
• Documented the process for future reference.
• Create support ticket with vendor on different application related issue.
• Co-ordinate with different team (Web Services, Storage and Server) to resolve different issue.
• Maintain current knowledge of industry trends and standards

Environment: SUSE Linux 10/11/12, Debian 6/7/8, JBoss 6.4/7, Nagios, VMware 5.5, Splunk, Apache, Tomcat 7/8, TSM, Icinga, ELAN, IBM Rational ClearQuest, Galileo Performance tool.

Confidential, Atlanta, GA

Linux System Administrator

Responsibilities:

• Involved in upliftment of RHEL 5.2 to RHEL 6.5 and Solaris 8,9,10 Solaris 11
• Worked on migration from physical to virtual (P2V) environment.
• Worked on installation of VMware ESX5.5 migration of Vm’s and data storage, patch management, snapshot and template and clone.
• Created a mirror copy of bare metal into a virtual environment and switch production from bare metal to virtual.
• Worked on backing up physical server, deploying the new VM on KVM hypervisor.
• Decommissioning legacy physical server.
• Deployed Linux Hardware Nodes to host several KVM templates.
• Architecting, installing, configuring complete hardware and software High Performance Computing Solutions for customers.
• Installed packages using RPM and YUM.
• Administering and supporting multiple HPC architectures (SMP and distributed).
• Designed and built InfiniBand clusters, including those to 1000s of nodes.
• Worked and benchmarked with Open Fabrics and QLogic InfiniBand Host stacks.
• Created Virtual Guests on the host systems using the Red Hat Virtualization Manager and Hypervisor
• Created and managed the virtual images from NFS/iSCSI storage pools
• Adding an EMC LUN as a datastore through Virtual Center.
• Adding CPU+Mem, Disk hot to a VM.
• VMware HA testing.
• Worked on installation of DevOps tools, which help to accelerate SDLC. CA Service Virtualization formerly CA LISA.
• Created and managed user/group and sudo access on Red hat Linux.
• VMware Cloud Server Add-remove, hardware installation and configuration, Rack and Cabling, Bios settings and configure Network console for Dell R910, IBM 3650M3, HP DL380.
• Configure internal disk mirrors for ESXi boot, Boot and install ESXi5.0
• Configure ESXi ISO as Virtual CD for Dell, IBM and HP servers
• Setup and tuning of Red-Hat Kernel Parameters for better performance.
• Responsible for applying server’s patches using RHN satellite.
• Daily support, which includes installation, configuration and troubleshooting of RHEL and Solaris servers’ environment.
• Data Centers support contains 1000 + servers.
• Worked with Vendor Sun/IBM/HP/DELL third party vendor for hardware issues in Datacenter.
• Configured Puppet, which is a system config-management tool and automates standardization across platforms. It has lots of use-cases: user/AppAcct/Mechidstandardization, Config-file standardization (resolv.conf.ntp.conf/auto.mater/hostfile-entries), Crontab management, Ssh key mgmt.
• Used Puppet for creating scripts, deployment for servers, and managing changes through Puppet master server on its clients.
• Assembled Puppet Master, Agent and Database servers on Red Hat Enterprise Linux Platforms.
• Setup log rotate for applications logs and system logs.
• Opening of ports if an application requires special ports.
• Booted systems into different run levels for troubleshooting and system maintenance.
• Configured Cronjobs in Crontab file to run jobs at specific intervals.
• Worked on Load Balancer followed the standard document on how basic configuration and how to figure out front-side servers hitting a VIP
• Worked with Veritas Clusters and deployed Five-node cluster on Solaris and HP-UX.
• Adding, deleting and configuring different resources in Veritas Clusters on Solaris and HP-UX.
• Administration and troubleshooting Solaris and Red hat Linux servers running business critical application & Web Logic (WAS) applications.
• Creating and setting up NFS Mount Points on Red hat Linux, Solaris and HP-UX.
• Discovering and adding newly added LUNS to the Veritas Volume Manager, on Red hat Linux, Solaris and HP-UX servers.
• Increase and decrease volume and file system in Veritas Volume Manager and File System.
• Veritas File System and Veritas Volume Manager 3.5 are used to configure the RAID 1 and RAID 5 Storage Systems.
• Used RPMs to install, update, verify, query and erase packages from Linux Servers.
• Implemented and configured Backup Policies and Storage Units.
• Managing disk storage with Veritas Volume Manager 3.5/4.1/5.1 and Solaris Volume Manager with Veritas File System (VxFS).
• Implemented NIS and NFS for administrative and project requirements.
• Tuning the kernel parameters based on the application/database requirement.
• Involved in the Implementation of SunFire 4800/6800, in Veritas Cluster Server 3.5/4.0/5.1 environment.
• Monitoring system resources, logs, disk usage, scheduling backups and restore.
• Configuring SUDO and granting root permission to users for performing certain activities.

Environment: Sun Solaris 8,9,10,11 Red hat Linux 5/6/7, KVM, WebLogic 8.1/9.x/10.x Sun Fire 6800, 4800, V890, V880, V490, V480 and V210, Veritas Volume Manager, Solaris Volume Manager, Solstice Disk Suite, Veritas Cluster Server, WebLogic 8.1, Oracle 9i/10g, Puppet.

Confidential, Plano, TX

Linux Administrator/Prod Support.

Responsibilities:

• Involved in upliftment of RHEL 5.2 to RHEL 5.4 and Solaris 8,9 to Solaris 10.
• Responsible for installing and configuring Red Hat Linux 5 using Kick Start server. Created new file systems and Logical Volumes, performed file system management and troubleshooting in Red Hat 5.
• Installing and updating packages using RPM.
• Created Virtual Guests on the host systems using the Red Hat Virtualization Manager and Hypervisor.
• Created and managed the virtual images from NFS/iSCSI storage pools
• Installed and configured Directory Server, Directory proxy on Solaris 10 and Identity Synchronization for Windows
• Migrated Directory Server 5.2 to DSEE 6.3
• Setup and tuning of Red-Hat Kernel parameters for better performance.
• Responsible for applying server’s patches using Patch Center.
• Daily support, which includes installation, configuration and troubleshooting of Red-Hat server environment.
• Install Vendor binaries and proprietary software, utilities, compilers, databases & licensing.
• Compiled and packaged Apache 1.3.x with Certificate Authority using openssl and mod ssl & good in debugging apache related issues.
• Configuring, tuning and maintaining Tomcat Application server.
• Installation and administration DNS, FTP, NIS & DHCP servers.
• Supported Oracle 11g databases and knowledge of Oracle Automatic Storage Management (ASM).
• Maintain system integrity and maximize uptime.
• Ability to configure all the services including NFS, FTP, LDAP, Web servers, Samba server.
• Updated the systems using the Red Hat Enterprise Network (RHN) and managed and monitoring through RHN.
• Production support of high-performance computing clusters as a member of HPC System admin team.
• Integration of new HPC systems into production, including Trinity supercomputer.
• Develop configuration management and tooling for automating system management.
• Management of several small HPC systems, including Cray XK7, XC-30, and commodity clusters.
• Provide advice and assistance on HPC cluster systems to Solution Architect team.
• Design and deploy tailored HPC systems based on customer requirements.
• Provide front-line support for customer’s users running and developing on R systems clusters.
• Worked on Windows Virtual Environment.
• NetBackup’s on windows and batch Jobs, Tidal agent management.
• Batch Scheduling in Windows and worked on IBM blade servers.
• Routine server OS installs, old server OS upgrades using Linux Kick start.
• Handled and troubleshoot issues regarding Samba Servers.
• Installed and configured Samba to help printing and file sharing.
• Administration of Gmail and Send mail server.
• Hands on Experience in Linux Administration Support, Performance tuning & monitoring problem analysis & resolution.
• Configuring servers and Clients Configuration of Protocols, maintenance of installed applications on the Network.
• Security implementation through ACl, IPTABLES and TCP Wrappers.
• Scheduling the jobs by creating Crontabs.
• Responsible for Storage management, NIS and NFS management.
• Managed Information Security Compliance activities, Linux server security administration & Monitoring system Performance.
• Provides enterprise risk assessment mechanisms and reporting.
• Responsible for Production Servers Deployments.
• Maintaining incremental, weekly and monthly backups.

Environment: Sun Solaris 8,9,10,11 Red hat Linux 5/6/7, KVM, WebLogic 8.1/9.x/10.x, Veritas Volume Manager, Solaris Volume Manager, Solstice Disk Suite, Veritas Cluster Server, WebLogic 11/12, Oracle 9i/10g, Puppet.

Confidential, Plano, TX

System Administrator

Responsibilities:

• 24x7 Support of Red-Hat Linux, Solaris, IBM-AIX and systems administration, operational support and problem resolution for server systems.
• Installation and configuring Red hat Enterprise Linux 4/5 and Solaris 9/10
• Implementation of Kick-start and administration.
• Connecting the fiber cards, installing the drivers and OBP firmware upgrade for the sun servers & OS patching with the recommended patch cluster.
• Installing, Configuring and managing Symantec Storage Foundation suite 4.x/5.x (VxVM, VCS, VxFS).
• Installation, configuration and troubleshooting of JBoss Server version 6.1SP4 with Java 5 and Java6.
• Securing web applications using web.xml, Configuration and Deployment of Applications to JBoss.
• Installation of WebSphere 6.1 on Solaris 10 and its configuration with oracle database
• Wrote scripts to monitor and manage SystemOut.log, SystemErr.log and native java error logs in WebSphere.
• Security implementation through ACL, IPTABLES and TCP Wrappers.
• Configuration of Storage Area Networks (SAN).
• Scheduling the jobs by creating Crontabs.
• Administering and monitoring DNS, NFS, NIS, LDAP
• Installed and configured RAID 0, RAID 1 and RAID 5.
• Creation and management of user accounts and groups according to the security needs and adding the packages and patches when needed.
• Network & Firewall troubleshooting
• Implementing and Maintaining Apache web server with HTTPS.
• Associated with DBAs for installation of Oracle Database (RAC) on Linux servers & for tuning, backup and restore.
• Hands on Experience in Linux Administration Support, Performance tuning & monitoring, problem analysis & resolution.
• Configuring servers and Clients Configuration of Protocols, maintenance of installed applications on the Network.
• User Group Administration and Advanced File Permissions.
• Executed SQL commands/scripts/stored procedures against the Database.
• Troubleshooting and maintenance of Sun Servers T2000, V490, V480, 280R, V240, V210 and V120.
• OS patching with the latest released patch on a quarterly basis.
• Manage multiple projects in the Install/Build/Develop/Support stages of Solaris systems.
• Expertise in VMWare virtual infrastructure
• Present project status, issues & their resolution, and other key information to team management.
• Monitoring of all the infrastructure elements using Tivoli.
• Setup of the console and management of Tivoli Agent alerts.
• Wrote Shell Scripts for scheduling the Backups and for the Automation of several maintenance tasks.
• Take approval and timeframe for de-commissioning old servers. Check with database and business groups for any business impact while de-commissioning servers.
• Provided support for multi-path Fiber Channel storage systems, as well as Solaris servers configured with multiple Fiber Channel (FC) Host Bus Adapters (HBA) on a Storage Area Network (SAN).
• Working on a Staging Server for pushing the data into test, Demo, Stress, Inttest and production environments as requested by the DBAs or the developers.
• Installing, Booting, Halting & Uninstalling Zones and adding Non-Global Zone Access to Specific File Systems in the Global Zone.
• Installation and administration of DNS, NIS & DHCP servers.
• Setup of syslog server for centralized managements of logs using Syslog-ng.

Environment: Solaris 9/10, AIX, RHEL 4/5, JBoss, Nagios, VVM 5.0