SUMMARY:

• 8 years of Strong Experience in Linux Administration, Shell Scripting with expertise in Red Hat Enterprise Linux 4, 5, 6, Solaris 9,10, Windows 2003 and familiar with IBM AIX 6.
• Expertise in Installation, Configuration, Integration, Tuning, Backup, Crash recovery, Upgrades, Patching, Monitoring System Performance, System and Network Security and Troubleshooting of Linux/Unix Servers.
• Experience in implementing and monitoring High Availability environment using Red Hat Cluster, Veritas Cluster Server, Sun Cluster and Oracle RAC.
• Experience in an established WebSphere/WebLogic environment comprises of Firewalls, Load Balancer, Web Servers, App Servers and Databases (DB2, Oracle, and MS SQL Server).
• Expertise also encompasses engineering, including VOIP, installation and troubleshooting of networks and telecommunications systems, including working with security and networking departments when troubleshooting network issues.
• Experience in Implementing Configuration Management tools like Puppet, Chef and Ansible and used for Application Deployments & Environment configuration.
• Deploy and monitor scalable infrastructure on Amazon web services (AWS) & configuration management using Puppet.
• Experience in Puppet Master and Client installation and configuration, in developing puppet modules (blue prints) for installation, configuration and continuous integration (CI) using combination of puppet master, Git, R10K wrapper, Open stack (Horizon), Vagrant and Jenkins/Udeploy.
• Strong experience in field of network implementation, maintenance and support specializing in Voice/Voip/IP Telephony.
• Worked on several VOIP installations moving sites to UC environment with centralized call processing by implementing voice gateways, phones and voicemail.
• Configured and used Kickstart, Jumpstart and NIM to install OS. Configured and maintained VMware.
• Strong experience in VERITAS Clusters in supporting high availability mission critical servers.
• Experienced with the installation, configuration and volume/File system management using Veritas Volume Manager (VxVM), Logical Volume Manager (LVM) and Solstice Disk Suite (Solaris Volume Manager).
• Proficient in Networking and configuring TCP/IP, DNS, NFS, NIS, NIS+, SAMBA, LDAP, SSH, SSL, SFTP, SMTP, SNMP, SCH.
• Good knowledge on various cloud computing products such as Amazon (EC2), OpenStack.
• Good knowledge on SAN, EMC Clarion CX, EMC Symmetrix DMX, EMC Mirror View, Hitachi data storage.
• Expert in Installation, configuration of Patches and Packages.
• Solid understanding of RPM, building, maintaining, and installing packages. Installed and configured IBM WebSphere Application Server 6.1 on AIX, Linux and Solaris.
• Proficient in installation and configure system file systems such as EXT, and software RAID managers such as Logical Storage Manager.
• Experience in HTML, Java Script, providing day - to-day user administration like adding and deleting users and managing user queries.
• Utilized Python in the handling of all hits on Django, Redis, and other applications.
• Performed research regarding Python Programming and its uses and efficiency.
• Experience in installation, configuration, Deployment and management of web and enterprise applications on BEA WebLogic Server 8.1/9.x/10.x and JBoss Application servers.
• Experience in VMWare VSphere Client 4. Experience in VMware Installed and monitored Virtual environments with ESX 3.xserversand Virtual Center 2.X
• Strong in troubleshooting, monitoring, training and 24/7 production support in mission critical environments Worked with systems support team to define, architect and maintain highly available production systems.
• Experience in LDAP and Puppet, Splunk, Cumulus, Ansible designed and developed integrated solutions through tools, processes and procedures to facilitate the cost-effective delivery of services or fielding of products.
• Self-motivated, able to set effective priorities to achieve immediate and long-term goals and meet operational deadlines. Able to work independently and as team member.

TECHNICAL SKILLS:

Hardware: Red-Hat Linux Enterprise servers (HP Proliant DL 585, BL 465/485,ML Series), Solaris 9,10, SAN (Netapp), BladeLogic, Veritas Cluster Server 5.0, Windows 2003 server, Dell Power edge 1300/1500 server, IBM Xseries, Blade server, Oracle RAC.

Operating systems: Red Hat Linux (RHEL) 4/5/6, Solaris 9/10, IBM AIX 5.3, Windows NT /2003/vistaFedora 16/17/18, SUSE 10.x

Naming Services: DNS, NIS, and NIS+

Backup Management: VERITAS NetBackup 4.x/5.x/6.x, ufsdump, ufsrestore, tar, dd, cpio

Script, Programming Languages: Shell, Bash, Python, PERL, C C++

Web Technologies: Apache 2.x/3.x, IPLANET 4.x/5.x, WEBLOGIC 8, Websphere 4.0/5.0

Storage: SAN, EMC Symmetrix / Clarion, iSCSI, SNAP, NAS, DAS

Thirdparty Software: VERITAS Volume Manager, LVM, LDAP

Cluster: Red Hat Cluster, Veritas Cluster Server (VCS), Sun Cluster, AIX HACMP

RDBMS: Oracle, MS SQL Server

Protocols: NetBIOS, NetBUI, SMTP, SNMP, ICMP, TCP/IP, FTP, TELNET, SSH, UDP & RIP, DNS, WINS, DHCP, SCH

Antivirus: Symantec Antivirus Corporate Edition, Trend Micro Messaging Suite for Exchange, MacAfee Virus Scan Engine 7.1 / 8i, AVG (Grisoft)

Remote Access Tools: Terminal Services, Net Meeting, Web - Ex, PC Anywhere and VNC for Windows Servers

PROFESSIONAL EXPERIENCE:

Confidential, Iselin, NJ

Senior Unix Core Server Admin

Responsibilities:

• Provided system support for Redhat Linux, Solaris, Cent OS and servers including routine maintenance, patching,system backups, restores, and software & hardware upgrade.
• Reengineered company's systems setup, establishing automated server generation routines, optimizing system performance, installing upgrades/patches, establishing system monitoring and maintaining security protocols.
• End to end migration of applications from Solaris 10 to Linux CentOS 7 and Redhat 5.x and 6.x. using Chef deployments.
• Deployed and maintained servers (Red Hat Linux/CentOS) providing clustered key - value caching and text indexing.
• Installed, configured, and updated Linux machines, with Red Hat, Debian, and CentOS.
• Worked on Redhat Satellite which includes upgrading servers on a quarterly basis and creating base, child, custom channels.
• Setting up the Chef Workstation and Chef Nodes.
• Linux kernel tunables knowledge - security, network (TCP, UDP) and memory.
• Strong knowledge of design, implementation, and support of networkedsystems and technologies such as routers, switches, file servers, DNS, and LDAP.
• Wrote Perl and Python scripts to generate statistics and monitor processes. Monitored various VPS instance in the cloud by Zenoss.
• Automated system management tasks like user account creation, file system size monitoring, monitor system resources and system maintenance using Shell, and Perl scripts.
• Experience with VMwareVirtualization using ESX hypervisor of Vsphere 5.1.
• Closely worked with the core hosting team to build the servers required using CloudBolt.
• Worked with the network team to setup the VIPs and setup the LoadBalancers across the environment.
• Hands on experience in DeployedPuppet, puppet Dashboard and Puppet DB for configuration Management to existing infrastructure.
• Developed automated processes that run daily to check disk usage and perform cleanup of file systems on environments using shell scripting.
• Used Fabric, a tool for remote execution and deployment to Automate Administration Tasks And Deployments.
• Solved complicated defects related to memory leaks, design issues, LDAP protocol issues, etc.
• Configuring LDAP for authorization configuring loggregator for logs in PCF (ELK/SPLUNK).
• Assisted in configuring the application servers with other components such as database, web servers, LDAPdirectory, ActiveDirectory, BEAWeb logic etc.
• Extensively worked on implementation of IAM solution from scratch.
• Worked on implementing, customizing and integrating Identity and Access Management product (IAM suite).
• Work as the part of Identity Access Management, improving and automating IAM solution for ping Federate, Ping Access, CA SiteMinder, Radiant Logic VDS, LDAP and CA Directory Systems.
• Worked on fitting the Business Requirements to the IAM Product Features.
• Architected the IAM solution and created the high level designed document.
• Worked as an IAM solution architect and defined the solution architecture.
• Configured AD pass-through authentication for Identity Access Manager (IAM).
• Installed and configured the IAM suite components in production environments.
• Using automation tools (Chef, Puppet, Ansible) to deploy and configure environments.
• With ansible, creating roles, and updating playbooks to provision servers.

Environment: Red Hat Enterprise Linux 6.x/5.x,6.x, CentOS 6.5,7, Solaris 9/10, VERITAS netback up, HP-UX 11.20, AIX 5.3, CloudBolt, SAN, NIM, ZFS, VMware ESX LPAR/DLPAR's, NIS, NFS, IBM Tivoli, IBM SDS, IBM z/VM, IBM Web sphere, Chef, Apache, Tomcat, JBoss, Nagios.

Confidential, Columbus, OH

Senior Unix/Linux Admin

Responsibilities:

• Installation, configuration and upgrade of Redhat Linux 5/6, Cent OS 5.7 &Solaris 11 operating systems.
• Involved in developing custom images on Cloud using AWS images and on VMWare ESX using templates and involved in building physical servers using Kickstart PXE Boot and Jumpstart.
• Involved in health check of servers after patching/rebooting and checked all the services of Linux on AWS Cloud and also physical servers.
• Oracle OpenStack for Oracle Linux distribution is a cloud management software product that provides an enterprise type solution to deploy and manage.
• Provided telecommunications support for PBX and voicemail Confidential all locations converted digital phone systems to VOIP phone systems for entire HQ office.
• Created Puppet manifests, profiles and roles module to automate system operations.
• Helped provision and manage AWS linux servers with Chef and Ansible.
• Maintain and troubleshoot systems performance and network monitoring using tools like Nagios (installed on RedHat), and AWS services such as Cloud watch and CloudTrail.
• Experience in using configuration management tools like Puppet.
• Experience in load balancing and monitoring with Nagios.
• Responsible for the development of strategic documents including technical specs of ETL design usingDatastage, QualityStage and IA integration with MDM.
• Worked with Infrastructure team forDatastage migration fromDatastage 9.1&QualityStage to IIS IBM DS QS 9.1.
• Prepared full migration process and framework forDatastage migration projects
• Migrated old system data into SAP using ETL Datastage 11.3 connector states
• Installed and configured Information Analyzer and integration with Datastage
• Datastage 11.3 integrated with Hadoop HDFS, CVS with Excel stages
• Experience in IBM WebSphere, Tuxedo, and Datastage Config to support EPM environment.
• Managed servers on the Amazon Web Services (AWS) platform instances usingPuppet,Chef
• Configuration management.
• ApplicationDeployments & Environment configuration using Chef, Puppet, Ansible.
• Responsible for programming and maintaining VOIPtelephony usingAvaya Aura system Manager 7.0.
• Responsible for the management and administration of the corporate Voip telephone system as well as managed corporate distribution lists.
• Provisioned Voip phones for end users. Troubleshoot sound quality problems.
• Performed telecom service cutovers andVOIP installation support for approximately 35 users.
• Experience in BEA Weblogic Application server 7.x/8.x/9.x/10.x administration under heterogeneous environments like UNIX, RHEL, SUN Solaris 8.0, 9.0, 10.0, IBM AIX and Windows NT.
• Excellent working knowledge of Operation & Production Support with large mission critical systems in multiple technologies and platforms including WebLogic, Apache, JBoss, WebSphere, UNIX, Windows NT, and Oracle.
• Extensively worked on BEA WebLogic 8.x, 9.x, 10.x,11 Server, Apache http Server, Apache Tomcat Server as administrator for Server Installations, Configuration, Application components deployment, performance tuning including troubleshooting and maintenance.
• Extensively involved in troubleshooting bottlenecks of Memory, CPU, Devices and network using ps, vmstat, iostat, netstat, sar, snoop, nfsstat and sar commands, tuning the performance.
• Package management using RPM, YUM and UP2DATE in Red Hat Linux.
• Experience with provisioning and virtualization of IBM P - Series hardware (LPARs, VIO) .
• Associated with DBAs for installation of Oracle database on Linux servers & for tuning, backup and restore.
• Scheduling the jobs by creatingCrontabs on Linux.
• Perform operational tasks and activities e.g. monitoring log files, performance tuning and migration between environments.
• Monitor the performance and availability of key middleware components in production and test environments.
• Configured the systems for TCP/IP Networking with the existing LAN, Setting up SSH and SCP.
• Troubleshooting and configuration of Local and Network based printers.User, Group Administration and Advanced File Permissions.
• Maintain security for the networked environment while allowing users to access all data and software remotely. .
• Experience working on web applications like Apache, HTTP headers Load balancing, DNS, DHCP.
• Involved in supporting Apache, Apache Tomcat and generated SSL keys for renewing SSL certs on web servers.
• Responsible for monitoring and working on problem tickets (BMC Remedy). Following it up with business and technical teams, and ensuring the problem is successfully resolved.
• Responsible for documenting the issue, cause and resolution.Have been the on-call person for the application, worked with the appropriate team members to bring the issue and get a resolution.
• Experience in deploying and supporting Centos, Red Hat, or Debian operating systems.
• Automatebroutine tasks using tools such as: Puppet, Ansible, chef.
• Able to assess the code of others and write in BASH, Perl or python.
• Experience working on with version control tools like Git, Perforce, RCS, CVS.
• Experience working on with system monitoring tools such as Nagios and Cacti.

Environment: RHEL 6.x/5.x, Solaris 9/10/11, Apache 1.2/1.3/2.x, Logical & Veritas Volume Manager, Veritas net backup 5.x/6.0, VM ESX 4.x/3.x.

Confidential, Burns Horbor, IN

Sr. Unix/Linux Admin

Responsibilities:

• Designed, supported, and maintained Oracle Real Application Clusters supporting business critical applications on HP ProLiant BL465/BL685& Integrity Itanium2 platforms on RHEL 4 & 5 in JEE environment.
• Setup and maintained NFS and TCP/IP network, configured the systems for TCP/IP Networking with the existing LAN, setting up SSH and SCP features between SUN systems and other Red Hat/UNIX hosts.
• Configuration and administration of LDAP, NFS in Linux and also implemented Samba for sharing of resources between Linux and Windows environments. Experience in VMware Virtualization and cloud computing
• Installed and configured VMware ESX server instances for virtual server setup and deployment. Responsible for creating VMware virtual guests running Solaris, Linux, Windows.
• Deployed RedHat Satellite Server with custom repositories to provide a stable management solution for the Linux environment.
• Experience with Jumpstart & Kickstart Installations on Solaris & Linux. Experience with NetIQ Access Manager.
• Familiar with Datastage Administrator, defined projects, environment variables, user groups and privileges and set up different environments (Dev/QA/preprod/Prod).
• Performed debugging, troubleshooting, monitoring and performance tuning using Datastage.
• Experience in IBM WebSphere, Tuxedo, and Datastage Config to support EPM environment.
• Installation, configuration, support and security implementation on following services: DHCP, SSH, SCP.
• Configuration and administration of NFS and Samba in Linux and Solaris.
• Responsible for the design and installation of a mixed computation and storage HPC cluster with 0.8 Petabytes of storage.
• Worked with DBAs on installation of Oracle database, RDBMS database, restoration and log generation. Perform security patching of Linux servers.

Environment: Red Hat Enterprise Linux 4.x,5.x, Ubuntu, Centos, Sun Solaris 8,9,10, VERITAS Cluster Server, Veritas Volume Manager, SLURM, Oracle 11G, HP UX, HP Blade, IBM AIX, HP ProLiant DL 385, 585 WebLogic, Oracle RAC/ASM, MS Windows 2008 server

Confidential, Dallas, TX

Sr. Unix/Linux Admin

Responsibilities:

• Supported a large server and network infrastructure of Solaris, Linux and Windows environment.
• Managed installation, configuration, upgrades, and patch systems running OS such as Redhat, Fedora, Centos and Oracle Solaris.
• Utilized bash and ksh shell scripting to automate daily system administration tasks.
• Researched to improve service performance and reliability through investigation and root cause analysis.
• Managed data backup of UNIX, Windows, Virtual servers, disk storage tier1 and tier2 backups.
• Copy of important backup images to tape media and send them to offsite every week. Performed quarterly offsite media audits and reports.
• Ensured that various backup life cycle policies, and daily backup jobs are running, and failed jobs are fixed.
• Troubleshoot of technical issues related to tier 3 Storage and Quantum tape libraries, reported and logged all media and drive errors. Worked with vendors to resolve hardware and software issues.
• Configuration of NDMP backup and troubleshoot of NDMP backup failures associated with storage.
• Maintained configuration and security of the UNIX/LINUX operations systems with the enterprise’s computing environment. Provided required evidences to support internal controls per SOX quarterly audit requirement.
• Monitored system activities and fine-tuned system parameters and configurations to optimize performance and ensure security of systems.
• Adding servers to domain and managing the groups and user in Active Directory, installing and configuring send mail.
• Custom build of Windows 2003 and Windows 2008 servers which includes adding users, SAN, network configuration, installing application related packages, managing services.
• Responsible for maintenance of development tools and utilities and to maintain shell, Perl automation Scripts.
• Worked with project manager and auditing teams to implement PCI compliance.
• Installed and configured Virtual I/O Server V1.3.01 with fixpack8.1.
• Integrating WebLogic 10.x and Apache 2.x and deploying EAR, WAR files in WebLogic Application servers.
• As a member of the team, monitored the VERITAS Cluster Server 4.1 in SAN Environment.
• Created new groups and tested first in development, QA Boxes and then implemented the same in production Boxes.
• Created and maintained detailed procedural documentation regarding operating system installation and configuration of software packages, vendor contact information, etc.

Environment: Solaris 10, RHEL 5/4, Windows 2008/2003, Sun SPARC and Intel Servers, VMware Infrastructure. Red Hat Linux Enterprise Linux 4/5 4, Solaris 9, 10, Sun E10k, E25K, E4500, SunFire V440/880, DMX 3 & DMX4, Siteminder, SonicMQ 7.0, VxFS 4.1, VxVM 4.1.

Confidential, Chicago, IL

Unix/Linux Admin

Responsibilities:

• Patching of RHEL5 and Solaris 8, 9, 10 servers for EMC Power path upgrade for VMAX migration.
• Configuration of LVM (Logical Volume Manager) to manage volume group, logical and physical partitions and importing new physical volumes.
• Documented the standard procedure for installation and deployment of VMAX Migration and logical volume manager.
• Front-line support for users with variable HPC background and unique needs
• Installation, configuration, support and security implementation on following services: DHCP, SSH, SCP.
• Configuration and administration of NFS and Samba in Linux and Solaris.
• Installation in the patches, Hardware and Software servers
• Maintained and monitored all of company\'s servers' operating system and application patch level, disk space and memory usage, user activities on day-to-day basis.
• Installations of HP Open view, monitoring tool, in more than 300 servers.
• Attended calls related to customer queries and complaints, offered solutions to them.
• Creation of VMs, cloning and migrations of the VMs on VMware vSphere 4.0.
• Worked with DBA team for database performance issues, network related issue on Linux / Unix Servers and with vendors for hardware related issues.
• Expanded file system using Solaris Volume Manager (SVM) in the fly in Solaris boxes.
• Managed and upgraded UNIX's server services such as Bind DNS.
• Configuration and administration of Web (Apache), DHCP and FTP Servers in Linux and Solaris servers.
• Decommissioning of the old servers and keeping track or decommissioned and new servers using inventory list.
• Handling problems or requirements as per the ticket (Request Tracker) created.
• Participated in on-call rotation to provide 24X7 technical supports.
• Configuration and troubleshooting - LAN and TCP/IP issues.

Environment: Red Hat Enterprise Linux 4.x, 5.x, Ubuntu, Centos, JEE, Sun Solaris 8, 9, 10, HP Blade, VERITAS Volume Manager, Oracle 11G, Samba, Oracle RAC/ASM, EMC Power path, DELL PowerEdge 6650, HP Proliant DL 385, 585, 580, Sun Fire v440, SUN BLADE X6250, X6270.

Confidential, Chicago, IL

Systems Admin

Responsibilities:

• I nstallation, Configuration, Upgradation and administration of Sun Solaris, RedHat Linux.
• User account management and support.
• Jumpstart &Kick-start OS integration, DDNS, DHCP, SMTP, Samba, NFS, FTP, SSH, LDAP integration.
• Network traffic control, IPsec, Quos, VLAN, Proxy, Radius integration on Cisco Hardware via Red Hat Linux Software.
• Responsible for configuring and managing Squid server in Linux.
• Configuration and Administration of NIS environment.
• Managing file systems and disk management using Solstice Disk suite.
• Involved in Installing and configuring of NFS.
• Worked on Solaris volume manager to create file systems as per user and database requirements.
• Trouble-shooting the system and end user issues.
• Responsible for configuring real time backup of web servers.
• Log file was managed for troubleshooting and probable errors.
• Responsible for reviewing all open tickets, resolve and close any existing tickets.
• Document solutions for any issues that have not been discovered previously.

Environment: Sun Solaris 2.6/7, SUN Ultra Enterprise 6000/450, SUN Ultra 10/5/2/1, Windows NT 4.0, RHEL 3.x.