SUMMARY

• Having 7.5+ years of experience in IT Industry with ability to accomplish all aspects of the software configuration management and UNIX Administration like (Red Hat Enterprise Linux, SUSE, CentOS, IBM AIX), VMware Virtualization and covering various issues, such as installation, configuration and troubleshooting Data Center Infrastructure issues.
• Worked in Infrastructure team on installation, configuration and administration of RHEL 5.x/6.x/7, CentOS 6.x/7.x and IBM AIX 6.x/7.x
• Experience in Package Management using Red Hat RPM/YUM
• Experience in System Administration, Server builds, Installs, Upgrades, Patches, Migration, Troubleshooting, Backup, Disaster Recovery and Performance Monitoringon UNIX Red Hat Linux Systems.
• Solid understanding of Linux OS, including security, compilation, and installation of third - party software and networking.
• AWSEC2, EBS, S3, Cloud Watch, Cloud Front, IAM, Security Groups, Auto-Scaling
• Experience in Implementing Configuration Management tools likePuppet, Ansible and used for Application Deployments & Environment configuration
• Deploy and monitor scalable infrastructure on Amazon web services (AWS) & configuration management usingPuppet
• Installation and configuration of vSphere, ESXi 4.x, 5.x, VSphere Client ESXi server on HP and Dell Servers and configured SUSE, Red Hat Linux virtual machines, CentOS for various application
• Installation and configuration of VMware tools Virtual Machines
• Deploy and monitor scalable infrastructure on Amazon web services (AWS) & configuration management usingPuppet.
• Worked on VMware ESXi 5.1/5.5 vCenter Server services and performed vMotion and storage move and updating VMware tools by using manual method and using updating manager
• Day to day job including handling Tickets, Monitoring, Troubleshooting and involving maintenance activities
• Managed all the bugs and changes into a production environment using the Jira tracking tool
• Managing DNS, DHCP, FTP, NFS and Tomcat Apache web servers on Linux servers
• Experience NIC bonding configuration in Linux systems to increase the bandwidth or redundancy based on requirement by the application
• Experience in installation and configuration of volume management using VERITAS Volume Manager 5.1/6.0
• Experience in Backup Tools like NetBackup, Back-Bone
• Experience in User authentication system Dell quest VAS
• Installed, Configured, Managed Monitoring Tools such as Nimsoft, iCinga, Logrythm for Resource Monitoring, Network Monitoring and Log Trace Monitoring
• Installed and configured Tripwire Security tool in all QA, UAT and Production environments
• Installed and configured Imperva database monitoring tools in all database servers
• Knowledge in writing Shell and Bash Scripts
• Day to day administration of Production, QA, Development and Test environment systems. 24x7 on-call support.
• Worked on different server Hardware platforms, HP ProLiant DL585/360G5,6/385/585 G2, IBM P7, P8 and IBM/HP/DELL Blade Servers and chassis
• Involving 24x7 on-call production support and troubleshooting all types of problems related to OS and applications.
• Strong appetite for learning new technologies with positive attitude

TECHNICAL SKILLS

Operating Systems: RHEL 5.x/6.x, SUSE, CentOS 6.x/7,Sun Solaris 8, IBM AIX 6.1,7.1, Win 2k3 and 2k8

Scripting Languages: Shell and Bash

Clustering and Volume Manager: Veritas VCS and VxVM

Web/App Server: Http, Apache and Tomcat

Ticketing Tools: Service-Now, Jira and Falcon

Version Control Tools: Subversion and GIT

Encrypting Tools: PGP and GPG

Monitoring tools: Tripwire, Imperva and Nimsoft

Virtualization: VMware ESXi 4.1, 5.1 and 5.5

Cloud: AWS

Mangement Tools: Puppet and Ansible

PROFESSIONAL EXPERIENCE

Confidential, Princeton, New Jersey

Sr. System Analyst

Responsibilities:

• Team manages break/fix, build & deploy on IT infrastructure by using management tools like AWS and VMware.
• AWSEC2, EBS, S3, Cloud Watch, Cloud Front, IAM, Security Groups, Auto-Scaling.
• Solid understanding of Linux OS, including security, compilation, and installation of third-party software and networking.
• Working on integration, automated deployment by using by using Ansible management tools.
• Setup and buildAWSinfrastructure various resources, VPC EC2, S3, IAM, EBS, Security Group, Auto Scaling and RDS in Cloud Formation JSON templates.
• Experienced with web deployment technology specifically Linux/Nginx/Apache/Tomcat/Java.
• Redesigned infrastructure for high availability using multipleAWSavailability zones.
• Configuration of Route 53.
• Experienced running LAMP (Linux, Apache, MySQL, and PHP) systems in agile quick scale cloud environment.
• Dynamically add and remove servers fromAWSproduction environment.
• Automating backups by shell for Linux to transfer data in S3 bucket.
• Create Virtual machines, install Operating systems inside VM's and installing VM tools and configuring these VM's based on requirements.
• Performed daily system monitoring, verifying the integrity and availability of all hardware, server resources, systems and key processes, reviewing system and VM log file, and verifying completion of scheduled jobs such as backups, checking alerts and alarms
• Implementation and maintenance of HA, DRS, FT and Resource pool
• Installation, Configuration and Administration of Virtual Infrastructure using ESX/ESXi, VMware vSphere 4.x, Virtual Center 4.X and 5.x Servers
• Creating and managing Resource Pools and adding the VM's into Resource pools, Installing VM Tools into VM's and allocating for end user and Setting up priorities on CPU, Memory (RAM) and other resources
• Patch Management in ESX Servers & Linux and Windows Servers through update Manager
• Creating SUDO accounts and granting super user privileges to execute specific commands in Linux environment.
• Installation of Http, Tomcat and apache Web Servers and troubleshooting the application issue
• Install HP ProLiant Linux Servers, VMware vSphere Client
• Providing Level 2 and L2 support for costumer related issues and handling On-Call issues.

Confidential

Technical Lead

Responsibilities:

• Installation, configuration and administration of RHEL 5.x/6.x and CentOS 6.x/7.x
• Worked for CentOS project and installed CentOS 7.0 in more them 100 servers by using Kickstart method
• Working on Server 0build tickets and installing project required software’s
• Managing user accounts by using DELL quest User administration system - adding / removing / locking or unlocking a user account
• Creating SUDO accounts and granting super user privileges to execute specific commands in Linux and AIX environment.
• Troubleshoot SUDO user’s related issues.
• Perform daily admin tasks by using shell program.
• Writing files compression/Largest file shell programs to cleanup file-system.
• Creating shell scripts and adding into cron jobs for auto execution.
• Integrating SUDO user accounts with Windows AD accounts by using DELL Quest Software.
• Applying latest security patches on all RHEL and Centos servers by using YUM repository
• Configuration of LVM in Redhat Enterprise servers
• Adding/removing failed disk’s from LVM
• Extending/reducing Logical volumes size
• Troubleshooting disk related issues, which are control by LVM
• Disk space monitoring using the DU and Disk Performance monitoring using IOSTAT, DD and HDPARM
• LINUX system Performance monitoring using SAR, PS, NETSTAT, TOP and used Nimsoft for graphical reports
• Troubleshooting server hung issue by login into to VM/Server console
• Troubleshooting server crash issues and providing SOS logs to the OS vendor for resolving.
• Troubleshooting physical servers Hardware related issues and providing ADU reports to HP support team and open a CASE for failed part replacement as per application team confirmation
• Worked on users created Tickets as per priority level
• Handing Incident request which is created for server issues and proving RCA for the issue
• Working on TCM requests, scheduling changes and implementing in the given work window time
• Maintaining remote servers and remote applications SSH, SCP and telnet
• Installation and upgrade of JAVA tools in Web servers as per application team requirement.
• GIT and subversion packages as per application requirement
• Troubleshooting the web server’s application related issues
• Built a load-balanced, version-controlled, Hiera/r10k-enabledin Puppetenvironment
• Created a customPuppetmodule skeleton to use same structure across allpuppetmodules
• ImplementedPuppetHiera to separate data fromPuppetcode
• PuppetEnterprise Administration in Apache, tomcat, Splunk Environment provisioning solutions using Red Hat Satellite.
• ManagedPuppetEnterprise 2015.3 Upgrade Project using newPuppet4.x syntax and improvements to thePuppetDevelopment Workflow that supports Unit Testing and Acceptance Testing for individualPuppetModules
• New Development workflow uses different open source tools like Server Spec, Rspec, Vagrant and Packer in order to validate changes across differentpuppet modules
• Administration and support of SVN
• AdministeredPuppetEnterprise to provision multi-platform virtual machine configurations across multiple platform environment Servers dedicated for building, deploying as well as for development, test and production systems
• Installation/update and removing packages by using Smitty and Insta llp tools
• Performed AIX migration more them 60 server by using Nimadm tool
• Troubleshooting package issues and installing ifix/efix by using by using emgr tool
• Performed TL upgrades more them 30 servers by using Smitty tools
• Troubleshooting lpar issues and opening PMR with IBM support team, for further support
• Troubleshooting file-system related issues and extending file-system size
• Providing password less authentication to user by adding SSH keys to associated servers
• Troubleshooting on customer related issue by looking into errpt and syslog files
• Extending the Physical and Logical Volumes space
• Increasing paging space logical volume size
• Performing monitoring by using NETSTAT, lPARSTAT, and for LPAR2RRD for GUI reports
• Installed and configured Tripwire, Imperva audits tools and troubleshooting services in debug mode and capture the logs and work with Vendor to fix issues
• Upgraded the Oracle database by using Opacth tools as suggested by data base team
• Installed the encryption software like PGP and GPG tools on important servers
• Installed the Oracle TFA diagnostic software on all data base servers
• Configuring HP Network printers in the office environment and Troubleshooting offline printer issues
• Installing and configuring VAS tools in newly built servers in UNIX Environment
• Joining Linux/AIX servers into VAS domain
• Providing UNIX servers access by adding users into account into VAS user allow file or adding user into VAS groups
• Troubleshooting AD issues like Servers disconnected and users unable to login
• Troubleshooting and debugging the Server disconnecting issue, by coordinating with Vendor and opening a CASE with them, as per the severity level to resolve the issue
• Upgrading the VAS software quarterly to meet the Security audit compliance
• Installed the Net-backup client software in 60 Linux servers, 40 IBM AIX laprs and completed the configuration.
• Performing Backup administration using VERITAS Netback-UP(7.5)
• Performed Backup and restore jobs from various types of backup’s NDMP, Standard, MS-Windows, RMAN and sterling jobs
• Performing Tape ejection and Library inventory and working with team to move the Critical Media to DSR location
• Monitoring the activity monitor and restarting failed jobs, else coordinating with other OS teams to resolve back-up failure issues
• Troubleshooting the RMAN backup failure issues by coordinating with oracle Database team
• Worked on Error codes and troubleshooting Hung jobs

Confidential

Sr. Technical Support Engineer

Responsibilities:

• Installation and configuration of ESXi servers in various hardware platforms
• Upgraded of ESXi 5.1 Versions from to 5.5 on more than 40 ESXi hosts and upgraded SSO
• Installed the vCenter components by using SIMPLE and CUSTOM installation methods
• Creating SQL database to maintain vCenter db
• Handling the Global customer issue and providing instructions to resolve their issue
• Troubleshooting on storage related issues, SSO, Snapshot, Inventory and vCenter related issues
• Troubleshooting Hardware, Booting and network related problems and customer related issue

Confidential

Linux Systems Administrator

Responsibilities:

• Installation, configuration and administration of RHEL 5.x/6.x and VCS
• Handling hot line Incident Management calls
• Worked on users created Tickets as per priority level
• Handing Incident request which is created for server issues and proving RCA for the issue
• Worked on TCM requests, scheduling changes and implementing in the given work window time
• User Administration - User accounts - adding / removing / locking or unlocking a user account
• User Groups - changing user’s login group; adding or changing groups; Password - changing a user password or password parameters
• Disk space monitoring using the DU
• LINUX system Performance monitoring using SAR, PS, NETSTAT, TOP etc
• Maintaining remote servers and remote applications SSH, SCP and telnet
• Configuration of LVM in Redhat Enterprise servers
• Troubleshooting disk related issues and which are under control by LVM
• Troubleshooting and Assigning NetApp filer Volume into Linux server
• Installation, configuration & maintenance of different Network printers in the office environment
• Configuration and managing Symantec VCS cluster
• Adding/removing VCS resources
• Providing RCA on Application resource failed/failover issues
• Installation of VERITAS VxVM and configuring Volumes on Redhat Enterprise servers
• Troubleshooting disk related issues and replacing failed disks from VxVM
• Installed the Net-backup client software in Linux servers and completed the configuration
• Performing Backup administration using VERITAS Netback up (7.1)
• Working Backup and restore from various types of backup’s NDMP, Standard, MS-Windows
• Performing Tape ejection and Library inventory and working with team to move the Critical Media to DSR location
• Worked on Error codes, troubleshooting Hung jobs