SUMMARY:

• 8 years of Strong Experience in Linux Administration, Shell Scripting with expertise in Red Hat Enterprise Linux 4, 5, 6,7 Solaris 9,10,11 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.
• Configured and used Kickstart, Jumpstart and NIM to install OS.
• 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.x servers and 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:

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)

Terminal Services, Net Meeting, Web: Ex, PC Anywhere and VNC for Windows Servers

PROFESSIONAL EXPERIENCE:

Confidential, Charlotte, NC

Sr. Unix Engineer

Responsibilities:

• Worked on Red Hat ( 5.x , 6.x , 7.x ), Cent OS ( 6.x , 7.x ), Ubuntu ( 12.x , 14.x ), SUSE Linux 10.x distros , AIX ( 5.3 , 6.1 , 7.1 ), Solaris (10, 11) and some Windows versions like Windows 2008 R2 , 2012 servers on virtualization with VMWare ( Vsphere Client , VCenter ).
• Configuring and Administering NIS, LDAP and FTP on Linux and Sun Solaris server environment.
• Experienced in automating system admin tasks like Provisioning, Installing, Configuring, Updating and Deploying services using Puppet , Chef and Ansible .
• 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 .
• Extensive working knowledge on system administration tasks like OS installations ( Kickstart , PXE ), user / group creations , ACLs , Logical Volume Management ( LVMs ), Package management ( RPM , YUM , apt-get , dpkg ), patching ( RedHat Satellite ), troubleshooting network / server / application failures etc.
• Developed Cron jobs and Shell Scripts (Shell, Python) for automating administration tasks like file system management, process management, backup and restore.
• Extensive experience in cluster planning, installing, configuring and administrating Hadoop cluster for major Hadoop distributions like Cloudera and Hortonworks.
• Responsible for Cluster maintenance, commissioning and decommissioning Data nodes, Cluster Monitoring, Troubleshooting, Manage & review Hadoop log files.
• Performed automated installations of Operating System using kickstart for Red Hat Enterprise Linux 5/6 and Jumpstart for Solaris 9/10 Linux .
• Administered and supported distributions of Linux , including Linux Enterprise Desktop , SUSE Linux Enterprise Server , RedHat and Solaris .
• Configured the NIS , NIS+ and DNS on RedHat Linux 5.1 and update NIS maps and organize the RHN Satellite Servers in combination with RHN Proxy Server .
• Experience with VMwareVirtualization using ESX hypervisor of Vsphere 5.1 .
• Extensively worked on Linux Cron jobs for automating various build related jobs and application data synchronization jobs .
• Synmantec Veritas Netbackup administration, ensure backup status, trouble-shoot any failed backups, restore files, store tape media to outside facility.
• Experience in implementation and maintenance of VMware, DNS, DHCP, NIS, NFS, SMTP and Amazon Linux instances.
• Worked with DBAs on installation of Oracle database, RDBMS database, Restoration and log generation. Perform security patching of Linux servers.
• Installation, configuration, support and security implementation of DHCP, SSH, SCP services.
• Configuration and administration of NFS and Samba in Linux and Solaris.

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

Confidential, Cumberland, RI

Senior Unix 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 .
• Worked on building, deploying and managing Web Application and Database servers like APACHE , HTTP , TOMCAT , NGINX , WebSphere , JBOSS , MySQL , Mongo DB , PostgreSQL , Oracle DB etc.
• Worked on Jenkins CI/CD pipeline jobs for end-to-end automation to build , test and deliver artifacts and troubleshoot the build issue during the Jenkins build process.
• Plan, Install and Integrate software packages (OEM, OS, etc.), performed new package installations using ( YUM ) and Custom RPM builds .
• Involved in configuring, administration and troubleshooting Linux/Unix Servers which are connected to Storage such as NetApps, EMC. Experienced working with Fiber Chanel and iSCSI Storage Area Networks SAN.
• Responsible for build and deployment automation using AWS , Docker , Kubernetes containers and Chef .
• Hands on experience in Deployed Puppet , puppet Dashboard and Puppet DB for configuration Management to existing infrastructure .
• 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 .
• Responsible for the design and installation of a mixed computation and storage HPC cluster with 0.8 Petabytes of storage.
• Assisted in configuring the application servers with other components such as database , web servers , LDAP directory , Active Directory , BEA Web logic etc.
• Maintained 15 VMware ESX server connected with two EMC VNX SAN box and managed of two Cisco MDS switch using Fabric Device management tool.
• Configuration and administration of EMC Vmax san array on SMC/SPA, creation of thin devices, meta devices and virtual devices as for database space allocation, administration on EMC Unispehere. Report generation for array disks, heat maps, I/O status.
• Implemented thin provisioning from VMAX to UNIX (AIX, Solaris and Linux) and Windows2003/2008 (clusters) servers, and VMware ESX Servers.
• Experience in host based migration activities including the D&A (collection of host grabs) and migration execution (Vmotion, LVM, etc).
• Implemented Disaster Recovery Planning, and executed email archiving and file retention policies, Business Continuity, and Security Policies.

Environment: s: Red Hat Enterprise Linux 6.x/5.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, Iselin, NJ

Senior Unix Core Server Admin

Responsibilities:

• 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 .
• 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.
• Supporting & consulting customer on their Microsoft Server and Adv. Server, Novell 6.5 and SUSE 10\11\12 Enterprise Servers, Open SUSE, Red Hat Enterprise Linux (RHEL) VMware Servers 2.5/3.X/4.X/5.X and XEN.
• Deployed and maintained servers ( Red Hat Linux/CentOS ) providing clustered key-value caching and text indexing.
• Installed, configured, and updated Linux machines , Debian , and CentOS .
• Linux kernel tunables knowledge - security , network ( TCP, UDP ) and memory .
• Strong knowledge of design , implementation , and support of network systems 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.
• Deployed applications in WebSphere 7.0, 8.5 ND environments by creating Clusters, virtual hosts, data source, configuring HTTP transports.
• Automated system management tasks like user account creation, file system size monitoring, monitor system resources and system maintenance using Shell, and Perl scripts.
• 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.
• 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 ).
• Experience in IBM WebSphere, Tuxedo , and Datastage Config to support EPM environment.
• Managed servers on the Amazon Web Services (AWS) platform instances using Puppet,Chef Configuration management.
• Architected the IAM solution and created the high level designed document.
• Extensively worked on implementation of IAM solution from scratch.
• Knowledge on how to associate applications with other objects within (NDS\eDirectory from Novell 3.11/4.X/5.X/6.X and SUSE Linux OES).
• 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.
• 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, Ohio

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 .
• Oracle OpenStack for Oracle Linux distribution is a cloud management software product that provides an enterprise type solution to deploy and manage.
• Highly experienced on Linux based server solutions like Apache, FTP, DHCP, DNS/NIS, SAMBA and NFS.
• 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 .
• Responsible for the development of strategic documents including technical specs of ETL design using Datastage, QualityStage and IA integration with MDM.
• Worked with Infrastructure team for Datastage migration from Datastage 9.1 & QualityStage to IIS IBM DS QS 9.1.
• Prepared full migration process and framework for Datastage migration projects.
• Migrated old system data into SAP using ETL Datastage 11.3 connector states.
• Installed and configured Information Analyzer and integration with Datastage.
• Application Deployments & Environment configuration using Chef, Puppet, Ansible.
• Responsible for the management and administration of the corporate Voip telephone system as well as managed corporate distribution lists.
• Performed telecom service cutovers and VOIP installation support for approximately 35 users.
• 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 , 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 creating Crontabs on Linux.
• Perform operational tasks and activities e.g. Monitoring Log Files , Performance Tuning and Migration between environments.
• 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.
• Configured the systems for TCP/IP Networking with the existing LAN , Setting up SSH and SCP .
• 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.
• Able to assess the code of others and write in BASH , Perl or Python .
• 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

Unix/Linux Admin

Responsibilities:

• 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.
• Installation, Configuration, Upgradation and administration of Sun Solaris, RedHat Linux.
• Jumpstart & Kick-start OS integration, DDNS, DHCP, SMTP, Samba, NFS, FTP, SSH, LDAP integration.
• Configuration of LVM (Logical Volume Manager) to manage volume group, logical and physical partitions and importing new physical volumes.
• Configuration of NDMP backup and troubleshoot of NDMP backup failures associated with storage.
• Adding servers to domain and managing the groups and user in Active Directory, Installing and Configuring send mails.
• 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.
• 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.
• 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 and maintained detailed procedural documentation regarding operating system Installation and Configuration of Software packages, Vendor contact information, etc.
• Installation, configuration, support and security implementation of DHCP, SSH, SCP services.
• Configuration and administration of NFS and Samba in Linux and Solaris.
• Creation of VMs, cloning and migrations of the VMs on VMware vSphere 4.0.
• Expanded file system using Solaris Volume Manager (SVM) in the fly in Solaris boxes.
• Configuration and administration of Web (Apache), DHCP and FTP Servers in Linux and Solaris servers.
• Decommissioning of the old servers and keeping track of decommissioned and new servers using inventory list.
• Configuration and troubleshooting - LAN and TCP/IP issues.
• Patching of RHEL5 and Solaris 8, 9, 10 servers for EMC Power path upgrade for VMAX migration.
• Performed a trend analysis of CPU/Memory/Disk utilization for critical servers.
• Worked with File System includes UNIX file System and Network file system.
• Planning, scheduling and implementation of O/s. patches on both Solaris & Linux.
• Created file systems using VERITAS volume manager & VERITAS File system.
• Administration of Disks and File systems using SVM and Veritas Volume Manager.
• Participating in Emergency Power Outages and Disaster recovery procedures.

Environment: Red Hat Enterprise Linux 4.x, 5.x, Ubuntu, Centos, JEE, Sun Solaris 8, 9, 10, Windows 2008/2003, Sun SPARC and Intel Servers, VMware Infrastructure, HP Blade, VERITAS Volume Manager, VxFS 4.1, VxVM 4.1, Samba, Oracle RAC/ASM, EMC Power path, DELL PowerEdge 6650, HP ProLiant DL 385, 585, 580, Sun Fire v440, SUN BLADE X6250, X6270.