PROFESSIONAL SUMMARY:

• 7 years of experience in IT industry, in the area of System Administration.
• Extensive System Administration experience in heterogeneous environments comprising Solaris, AIX, Linux 3,4,5,6.
• Excellent in patches and packages installation
• Experience in implementing High Availability Clusters using VERITAS Clustering, Redhat Cluster Server.
• Configuration of NIS, NFS, SAMBA, SENDMAIL, APACHE SERVICES on Linux &UNIX Environment.
• Experience in VERITAS Volume Manager, configuration and maintenance VERITAS File System.
• Experience in Logical Volume Manager for creation of Volume groups / Logical Volumes and File systems in UNIX environment.
• Experience in GPFS, GFS2, LVM and SAN/NAS storage.
• Experience in creating physical volume, logical volume, volume groups using LVM’s in Linux.
• Advanced knowledge and skills in Linux Operating System, High Availability/Clustering, System Backup/Restore, Kickstart and Logical Volume Manager software products.
• Excellent in Configuring and Administering NFS, SMTP, DHCP, samba in heterogeneous environment. Configure post build using puppet master server.
• Integrate puppet configuration as part of VRO Orchestration.
• Create and deploy puppet master servers in Dev/QA/PROD environments.
• Develop puppet modules for all post builds installations like User, Limits, LVM, and Packages, etc.
• Monitoring and configuration of various servers using Puppet modules.
• Improved Linux OS deployment and management by creating customized kickstart scripts and installing puppet.
• Used puppet for central management of Linux configuration files and software package management.
• Experience in configuration of NIS, NIS+, DNS, DHCP, NFS, LDAP, SAMBA, SQUID, postfix, sendmail, ftp, remote access, security management and Security trouble shooting skills.
• Configured and Administered HACMP 4.5, 5.1, 5.2, 5.3, 5.4, 5.5 IBM PowerHA.
• Installation, Configuration and administration of LPAR’s.
• Installation, administration of VIO Server and VIO client LPAR’s.
• Experience in installation, configuration, tuning, security, backup, recovery and upgrades of IBM AIX
• Expertise in Tivoli monitoring, Tivoli Storage Manager (TSM), Tivoli License Manger (TLM), Server Resource Manager (SRM) and Control - M Scheduler.
• Replaced failed hard drivers, back planes, CPU component’s, Fiber Channel Adapters (HBA’s), NiC cards and other hardware.
• Experience in Binding Luns, Naming, and resizing, Unbinding LUNs and configured in power path.
• Expert in Datacenter Operations including hardware, software setup monitoring, troubleshooting on a 24 x 7 basis with Tivoli monitoring tool and Remedy ticketing Systems.
• Study of integration of a FIM (File Integrity Monitoring) tool to comply with audit requirements (Tripwire-based).
• Provide support to SQL, MYSQL, Oracle, Data guard and DB2 database while coordinating with database teams.
• Experienced in Writing and Updating Shell Scripts and Perl Scripts.
• Experienced in Installation and Configuration of Web Sphere Application server V3.5/4.0/5.x,6.x, IBM HTTP Server, Sun-one Webserver on AIX, Solaris and Linux platforms.
• VMware Infrastructure 3.x Installation & Configuration.
• Planning and Designing VMware VI3 (ESX3.x/ ESXi/ Thin ESX and VMware Virtual Center).
• Expertise in managing application tools Jump Start, Solstice Disk Suite, and SVM.
• Configuring & Troubleshooting NFS Servers and Clients, in UNIX Environment.
• Implementation of RAID levels like 0, 1, 0+1, 5 using VERITAS Volume Manager.
• Good exposure to Network Storage Solutions like DAS, NAS and SAN.
• Very good exposure of the migration process using SRDF, involved in V2V, P2P and re-installs.
• Provide LUN mapping to EMC for the storage to replicate to new data center.

TECHNICAL SKILLS:

OS: UNIX/AIX, Windows 2000/03/NT4.0, Wintel Sun Solaris, HP-UX. MAC8.1/9/10 & OS2

Hardware: HP, DELL, IBM, PSeries, SUN Enterprise.

Servers: Web Sphere Application Server 3.5/4.0, Netscape/iPlanet Server, MQSeries, Web Logic Server, IBM HTTP Server, HTML, DHTML, XML, Java Script, JSP, Servlets, EJB, Apache 2.2, Tomcat 5.5, Active MQ

Networking: TCP/IP, RPC, UDP, NIS, NFS, DNS, DHCP, Cisco Routers/Switches, LAN.

RDBMS: IBM UDB2, Oracle 7.x/8.0/9i, MS-SQL Server 7.0/6.5 and MS-Access 97/95.

Languages: UNIX Shell Programming (ksh, csh, sh), Verilog HDL, Matlab with toolboxes, SQL.

Applications: Samba, Tivoli (TSM), VERITAS Volume Manager.

PROFESSIONAL EXPERIENCE:

System Engineer

Confidential, Tempe, AZ

Responsibilities:

• Deployed application packages on to the Apache Tomcat server. Coordinated with software development teams and QA teams.
• Created and maintained Subversion/GIT repositories, branches and tags.
• Participated in the release cycle of the product which involves environments like developments QA and production.
• Installed • Used the version control system GIT to access the repositories and used in coordinating with CI tools.
• and configured GIT and communicating with the repositories in GITHUB
• Deployed the build artifacts into environments like QA, UAT according to the build life cycle.
• Participated and Organized weekly meetings and walkthroughs to improve the testing efforts.
• Managed users, workflow, groups and projects in JIRA
• Reported bugs and tracked defects using JIRA.
• Excellent hands on OpenStack cloud and implementation.
• Ticketing Tool used BMC Remedy PAC2000. Worked on CR (Change Request), WR (Work Requests), PT (Problem Tickets).
• Providing 24*7 on-call support on rotation basis and Handling High priority incidents through bridge calls.
• Participate on PAC2000 (Remedy) daily coordination team (recognized as top performer), to review, accept or arbitrate, and assign all incoming work orders, work requests and problem tickets for the overall team, ensuring engagement SLAs are honored and the team queues are managed.
• Worked on integrating GIT into the continuous Integration (CI) environment along with Anthill-Pro, Jenkins.
• Provided end-user training for all Anthill Pro, Jenkins, SVN to effectively use the tool.
• Managed the entire Release Communication and Co-ordination Process.
• Implemented continuous integration using Jenkins.
• Worked closely with Project Managers to understand a code/configuration release scope and how to confirm a release was successful
• Interacted with client teams to understand client deployment requests.
• Coordinate with the Development, Database Administration, QA, and IT Operations teams to ensure there are no resource conflicts.
• Performed Java/Tomcat/Apache/MongoDB patching/upgrading to remediate the security vulnerabilities
• Worked on Vagrant to create the virtual ones, used as test servers
• Creating documentation support and training guides for Engineering Team in Confluence.
• Worked on manage/configure/install SSL certificates across all the environments using OpenSSL/Venafi from WFCMS.
• Efficient in driving and troubleshooting issues through calls (EACO) and determined on working for root cause analysis in case of production issue
• Checking alert logs and trace files. File System maintenance, performance tuning.
• Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota.
• Managing Task plans and uploading into database, Software Deployments on request basis for production environment.
• Managing systems routine backup, scheduling jobs like disabling and enabling Autosys jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Working closely with Vendors on Hardware Problems, software fixes.
• Good knowledge of Firewall configuration and Network protocols, DNS
• Manage init scripts to start few processes automatically while system reboot.
•  Expertise in Performance Monitoring and Performance using (Triage) for Sitescope and OVO tools.
• Manage large number of batch jobs using CA Autosys tool
• Certificate renewal on Java applications and validate using jks tool
• Support and accommodate any new change requests into production environment 
• Troubleshoot Java application availability and performance issue for high user volume applications 
• Test code and performance issues in staging environment before release into production 
• Used Jenkins and Puppet for promoting and deploying Java code into production environment from lower environments 
• Routing traffic from one Datacenter to another from Loadbalancer BigIP  f5  
• Configuring, enabling and disabling of node and application instances on BigIp  F5  
• Working closely with release management team to accommodate and coordinate release based on priority 

Linux Engineer

Confidential, Houston, TX

Responsibilities:

• Troubleshooting all kinds of UNIX problems and assisting users.
• Perform system installs and performance tuning, configure and administer AIX 5.3, 6.1 LPAR’s.
• Involved in installing infrastructure and maintaining the performance of server, availability. Storage system software and functionality and interface components.
• Storage Provisioning, Volume and File system Management using VERITAS Volume Manager and VERITASFile system (VERITAS Storage Foundation), Configuring ZFS file systems.
• Handful of experience in Solaris 10 (SPARC and x86)
• Knowledge on Process operations like nice, renice, kill.
• Experience in Web and Application Servers Web logic 10.3.x or 9.x andiPlanet.
• Experienced working with IPMP, Solaris 11, Oracle VM (LDoms)
• Responsible for set up of BMC Patrol Agents V3.6.50.11i and 3.6.60i environment on UNIX Servers.
• Experienced working with scripting like shell, Perl and usedawk, grep, find.
• Administered Linux servers for several functions include managing Apache webservers, mail server and firewalls in both development and production
• Involved in troubleshooting shell scripts.
• Configuring UNIX environments for Oracle Databases such as kernel configurations, file system layouts, ora file configurations
• Knowledge on Administer Linux (RHEL, CentOS) administrator involved in server management
• Created volumes and maintained functional areas on NetApp F760 filers and exported them via NFS
• Administrating and troubleshooting Red Hat Cluster Suites
• Wrote & automated security audit scripts in the environment.
• Configuring and maintaining virtual server environment using VMWARE ESX/ GSX, VSphere 4.x, Xen, HP-UX nPars/vPars, Solaris 10 Zones.
• Involved in installing the Solaris Operating system from DVD and from a JumpStart/AI server
• Knowledge of Kickstart and PXE administration.
• Perform day to day LVM operations and System Admin tasks.
• Experience with IBM Power4, Power5, Power6 and Power7 virtualization.
• Administering and troubleshooting of Redhat Clustering.
• Hands on experience using the VI editor.Monitoring and configuration of various servers using Puppet modules.
• Implemented rapid provisioning and life cycle management for Redhat linux using kickstart and puppet.
• Installation of packages, patch management, volume management on SuSe servers using YaST.
• Improved Linux OS deployment and management by creating customized kickstart scripts and installing puppet.
• Experience working with DELL and HP hardware.
• Knowledge of HP blades and service manager.Implemented multi-tier application provisioning in OpenStack cloud, integrated with Puppet &Chef
• Implemented horizontal auto-scaling in OpenStack cloud.
• Used puppet for central management of Linux configuration files and software package management.
• Experience with storage networking, with vendors/technologies such as iSCSI, SAN/NAS, data center storage consolidation, EMC,EVA, NetApp, HDS, HP, or Supported and Good Knowledge of designing IT architectures for storage and backup in the enterprise.
• Linux (RedHat 3/4/5/6) UNIX System and Network administration in Sun Solaris (9/10), HP-UX (10.x,11.x), IBM AIX (5.x), Server Installations, configurations, upgrades and migrations on Solaris, HP- UX, Linux and AIX.
• Created RAID volumes using RAID Controllers and LSI Hardware

UNIX Administrator

Confidential, Houston, TX

Responsibilities:

• Experience with installing and configuring sudo, proposed and implemented the idea of building a master sudoers file, and worked on a script to push the file to client LPAR’s on a weekly basis to lock down sudo access as a part of security audit.
• Installed and automated configure 2 html scripts on client LPAR’s and documented the RGA AIX environment by designing a webpage to access the cfg2html and ganglia output.
• GSD331 troubleshooting, find any incompliant servers are Remediate GSD331.
• Installed WebSphere Portal Server 5.1/6.0/6.1 and enabled Web Content management.
• Migrated WAS 5.0 Network Deployment and Base on AIX/Windows platforms to WAS 6.0 ND.
• Experience in NetApp storage devices, setup, configuration, operations and connecting to PSeries hardware.
• Perform system installs and performance tuning, configure and administer AIX 5.3, 6.1 LPAR’s.
• Create virtual media repository and LPAR dedicated virtual optical drives in the VIO servers to make new installations, cloning and migrations faster and easier.
• Set up and troubleshoot issues with Secure Shell in the environment to accommodate script automation and password changes.
• Solid understanding of Keon theory, being able to make directory architectural recommendations such as additions to DIT, schema extensions and indexing, Analyze and implements ACLs.
• Worked on AIX 5.3 and 6.1 running on ten P5s (P550 and P560), two P6s (P6 550), and six P7s (P700, P702 and P750) attached to EMC storage subsystems.
• Experience with Power VM 2.2 (VIO), HMC Version 6 and 7, EMC CLARiiON subsystem device configuration (Power path).Configure post build using puppet master server.
• Integrate puppet configuration as part of VRO Orchestration.
• Create and deploy puppet master servers in Dev/QA/PROD environments.
• Develop puppet modules for all post builds installations like User, Limits, LVM, and Packages, etc.
• Monitoring and configuration of various servers using Puppet modules.
• Improved Linux OS deployment and management by creating customized kickstart scripts and installing puppet.
• Used puppet for central management of Linux configuration files and software package management.
• Experience in configuration of NIS, NIS+, DNS, DHCP, NFS, LDAP, SAMBA, SQUID, postfix, sendmail, ftp, remote access, security management and Security trouble shooting skills.
• Monitoring and configuration of various servers using Puppet modules.
• Implemented rapid provisioning and life cycle management for Redhat linux using kickstart and puppet.
• Installation of packages, patch management, volume management on SuSe servers using YaST.
• Power VM Virtualization (SEA, vSCSI, NPIV), Dynamic LPAR (DLAPR).
• Experience with Integrated Virtualization Manager (IVM).
• Experience in installing configuring and administering MQ 5.3/6.0 on AIX, Linux and Windows environments.
• Installation and configuration of LPARs with AIX 5.3 on P5 servers. Manage LPARs and provide virtual memory management and memory optimization.

Linux System Admin

Confidential, Richardson, TX

Responsibilities:

• Providing on line support for Sun/Linux servers in a Data Center Production Environment
• Planning, installing and configuration of operating system on new Sun/HP Servers.
• Configured System imager for Linux Servers and used it for Cloning, software distribution and OS updates.
• Installations using PXE boot, Maintenances and troubleshooting hundreds of Linux Servers.
• Adding/expanding new storage to existing/new systems using LVM, VERITAS Volume management VXVM and Vxfs on Linux/SUN servers.
• Worked on Solaris servers supporting all the OS administration, application and hardware issues.
• Very good working experience on Redhat Satellite Server upgrading and patching.
• Building Linux servers by using VMware ESX 3.0 and also involved in channels and pushing the packages in Redhat Satellite Server.
• Responsible for leading the effort through full life cycle of the Upgrade project for Oracle and SAP environment from AIX P5 to P6 and AIX 5.3 to 6.1.
• Responsible for installation administration of AIX 4.3, 5.1, 5.2, 5.3, 6.1 and 7.1.
• Configured and Administered HACMP 5.3, 5.4, 5.5 IBM PowerHA.
• Installation, Configuration and administration of LPAR’s.
• Installation, administration of VIO Server and VIO client LPAR’s.
• 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.
• Implemented upgrade of servers using Redhat Satellite Server.
• Planning, documenting and supporting high availability, data replication, business persistence, fail-over, fail-back using VERITAS Cluster Server in SAN environment.
• Setup NFS file systems and shared them to clients.
• Troubleshooting and configuring NAS and NFS mount points.
• Troubleshooting network, application, and server related issues.
• Scheduling of automatic repetitive Jobs, and Shell Scripts with Crontab.
• Monitoring Virtual memory, Swap management, and Disk and CPU utilization by using various monitoring tools.
• Monitoring and configuration of various servers using Puppet modules.
• Primarily applications support, configure changes, troubleshooting server issues for QA/Stage/Production, monitoring issues through systems like Jira, Zabbix.
• Implemented rapid provisioning and life cycle management for Redhat Linux using kickstart and puppet.
• Improved Linux OS deployment and management by creating customized kickstart scripts and installing puppet.
• Used puppet for central management of Linux configuration files and software package management.
• Implementing RAID 0, 1 and 0+1 levels using VERITAS Volume Manager.
• Created RPM packages using RPMBUILD, verifying the new build packages and distributing the package.
• Installed Red Hat Linux on Intel Machines, Configured File Systems and Raw - Devices.
• Installed various RPMS on Linux.
• Involved in mass migration of data form old EMC Storage subsystems to new Subsystems.
• Installed and Configured VERITAS Net backup client and advanced client software’s in Production servers.
• Administer, maintain and troubleshoot EMC CLARiiON arrays.
• Creating volumes, LUNs and implementing different RAID levels on the same
• Configured and created snapshots of clones of LUNs using EMC Snap View
• Implemented replication of data within sub storage systems using SAN Copy and Mirror View software