SUMMARY:

• Over 8 years of IT industry experience as a System Administrator, Dev Ops and Production Support of various applications on Red Hat Enterprise Linux, Sun Solaris and Windows environment.
• Experience in installing, configuration, support, upgrading and patching Linux servers using Red hat Satellite Server and also worked on registering different client servers and involved in building channels and pushing the packages to master Red hat Satellite Server
• Experience in Installing, configuring and maintaining Nagios, Puppet and SaltStack.
• Experienced in Amazon EC2 setting up instances, virtual private cloud (VPCs), and security groups.
• Expertise in different versions of Cloudstack, Openstack, Vmware and other private clouds.
• Experience in Installation of VMware ESX server and creation of VMs and install different guest OS.
• Experience in installation and management of network related services like DNS, Apache, LDAP, SAMBA, HTTPD, VSFTP, SMTP, SQUID, and Active Directory.
• Expertise to handle tasks in RedHat Linux includes upgrading RPMS using YUM,kernel, HBA driver, configure SAN Disks, Multipathing and LVM file system.
• Well experienced in hands on, Kickstart (PXE) and Jumpstart installation of various fully and mostly POSIX compliant systems like Solaris 9 &10, RedHat 4,5 &6, CentOS 5 &6 and open SUSE 11 & 12.
• Performed P2P and P2V migrations across OpenVZ, VMware and Amazon EC2 environment.
• Hands on experience in Puppet deployment, dashboards configurations and PuppetDB.
• Experience working with DHCP/LDAP/NIS/NFS services.
• Support enterprise Storage Area Networks (SAN), and Tape Backup/Restore technology in a mission critical environment.
• Installation Configuration and Administration of VERITAS Volume Manager, VERITAS Cluster Server 5.0, VxFS, Disk arrays in SAN environment and extensive experience in creating and managing Logical volume manager (LVM) in Red - hat Linux.
• Experience in using various network protocols like HTTP, UDP, POP, FTP, TCP/IP, and SMTP.
• Experience in storage technologies like Net Backup, Hitachi, EMC storage, NetApp, SAN.
• Software package deployment, disaster recovery/contingency of business management.
• Excellent skills in problem solving, analysis, communication and documentation.
• 24/7 support for issues arising in production for mission critical and enterprise level applications.

TECHNICAL SKILLS:

Operating Systems: Red Hat, Fedora, SUSE, Debian, Ubuntu, CentOS, IBM-AIX, Sun Solaris, and HP-UX, Windows - NT/ 2000/2003/2007 Server/XP Pro/Vista/7

Hardware: DELL (PowerEdge), HP (ProLiant G7 & G8), IBM BladeCenter,Sun-Fire X-series and T-series Enterprise Servers

Tools: Weblogic 10.x/9.x/8.x, Apache HTTP/Tomcat/Jboss, VERITAS Volume Manager, VERITAS Net backup, Cluster server 3.5 &4.1, Sun Cluster 2.x & 3.x, Nagios, Splunk, Web Methods, Puppet, Chef,Ansible,Cloudstack,VmwareLanguages: Shell scripting, Perl, C, C++, JAVA,Php,Python

Networking: TCP/IP, NIS, NFS, DNS, DHCP, LAN, FTP/TFTP, SSH, SFTP, ARP

RDBMS: ORACLE, MySQL, PostgreSQL and MS SQL Server

Storage: LVM, SCSI, SATA, Ext 2, Ext 3, Ext 4 and NAS(NFS, SAMBA, RAID 0/1/5) and SAN(iSCSI, FibreChannel) NetApp filers.

PROFESSIONAL EXPERIENCE:

Confidential,Detroit,MI

Sr. Unix/Linux Administrator

Responsibilities:

• Supported Linux environment with around 2500+ servers running Redhat Linux.
• Configured cluster pools, enabled HA and DRS features using vSphere 5.x.
• Worked on Virtualizing RedHat servers using vSphere 4.1/5.0 and managed ESX servers using vCenter and also worked with ESX Cluster and vMotion.
• Installed, Configured and Maintained RedHat Linux (5.x, 6.x & 7) Kickstart and Solaris x86 VM’s.
• Supported 200+ AWS cloud instances running Ubuntu, Redhat and Windows environments.
• Launching Amazon EC2 Cloud Instances using Amazon Images (Linux/ Ubuntu) and Configuring launched instances with respect to specific applications.
• Experienced in Amazon EC2 setting up instances, virtual private cloud (VPCs), and security groups.
• Setting up databases in AWS using RDS, storage using S3 bucket and configuring instance backups to S3 bucket
• Implemented DNS systems using BIND, Route53(AWS), powerDNS
• Involved in P2V Linux migrations on VMWare ESX 5 Cluster environment and performed physical and Storage vMotion and experience using tools like vCenter and vSphere.
• Monitoring incident alerts using HP Open View Service Desk and Open View Operation (OVO).
• Installing the agent bundle that comprises of OVO and OVPA based on the requirement.
• Involved in SNMP Network management
• Developed multiple system maintenance scripts both BASH and Korn Shell.
• Configuring servers,router and switches to send SNMP traps to Network Management System (Nagios).
• Automation of various administrative tasks on multiple servers using Puppet and SaltStack.
• Installation and configuration of backup clients like Veritas Netbackup on Linux servers.
• Performed migration of data from Xymon to Nagios Monitoring.
• Installed and Configured Nagios client on 2000+ servers.
• Experience working with HP Openview client and server configuration.
• Experience in writing scripts to automate jobs and debugging scripts.
• Experience in using protocols like NIS, NFS, SSH, SFTP & DNS.
• Expertise DevOps Support/Monitoring
• Performed SAN Migration on RHEL and solaris servers using Double Take tool.
• Data migration at Host level using Red Hat LVM, Veritas Volume Manager and Solaris LVM
• Installation and support of various applications like Apache 2.x, Weblogic server 10, WebSphere 6.1, Jboss 4.x, Oracle 10g, Mysql on Solaris 10.
• Mirroring of root disks using Hardware Raid Controller on HP & Dell HW.
• Troubleshooting and performance tuning of various systems problems such as application, network and hardware related issues.

Environment: Red-Hat Enterprise Linux 5.x, 6.x, 7.x, AWS, Solaris 9 & 10, SAN (Netapp), NAS, Veritas Netbackup, Windows 2008, 2012, Nagios 3.5, Shell programming, Jboss 4.x, JDK 1.5,1.6,Oracle Weblogic, IBM WebSpehere, VMware ESX 4.x, vSphere 4.x & 5.x.

Confidential,Houston,TX

Sr. Unix/Linux Administrator

Responsibilities:

• Expertise in creating VM Templates, cloning and managing Snapshots.
• Worked on Grub, PXE boot, Kickstart, Packages, Yum, RPMs, LVM, Boot from SAN, filesystem configuration
• Configure dynamic and static network settings for IPv4 and filter packets, Review file system management concepts, removable media and configure NFS shares with AutoFS.
• Secure migration experience on Amazon AWS private cloud via encryption and tokenization.
• Performed system performance monitoring, created alerts and benchmarking for performance analysis on all application & production servers.
• Experience configuring Open LDAP and setting up clients for Open LDAP.
• Developed multiple shell scripts for system monitoring and converting raw data into Splunk format.
• Configured Java agent for monitoring PHP, .Net, Apache, and Glassfish.
• Upgraded Splunk application from 5.0.7 to 6.1 and also have expertise in configuring Forwarders on Splunk, installing and using of applications on splunk, performing splunk searches.
• Involved in configuring network bonding and troubleshooting networking issues
• Installed and configured HP OpenView tools
• Enable Fault Monitoring by installing Base OS templates and custom monitoring templates.
• Application process monitoring using monitor templates.
• Installing and configuring snmp on 500+ servers.
• Setup monitoring cpu,memory,http checks on the 500+ servers.
• Worked on generating and consolidating weekly Tripwire Reports.
• Provided support on applications like Splunk and Web-Methods and major Cloud applications like Cloudstack, Vsphere and DevOps.
• Expertise DevOps Support/Monitoring
• Working in war-room, providing continuous technical support throughout release and production period.
• Expertise in handling crisis during heavy load on servers and maintaining zero downtimes.
• Monitored server and application performance & tuning via various stat commands (top, sar, iostat, vmstat, netstat, mpstat, prstat, nfsstat, prtconf, prtdiag, iostat, top, printmgr, hpimliview, dmidecode, smc etc) and tuned I/O, memory etc for SUN Solaris and RHEL Servers.

Environment: Red-Hat Enterprise Linux 5.x, 6.x, Cloud Stack, Solaris 8, 9 & 10, SAN, NAS, NIS, EMC Avamar, Windows 2003, 2008, Shell programming, VMware ESX, JBoss, Splunk, IBM TSM Tivoli Storage Manager 5.3.4, IBM Tape Library 3584 with LTO 3580 tape drives.

Confidential,Pittsburg,PA

Sr. Unix/Linux Administrator

Responsibilities:

• Build servers, configured, installed tools, installed patches and transitioned servers to production support running Linux (Redhat, SuSE and Ubuntu) on HP & Dell X86 HW.
• Experience Building Servers using HPSA and involved in configuration management using Puppet.
• Regular Admin Tasks include building Linux servers for Production, Development and Test Environments and supported the ones under production.
• Managed all the labs and very familiar with all the server related hardware.
• Experience all the network configuration on the servers.
• 24x7 on call support for production environment.
• Installed and upgraded SUSE 11.3 on various servers.
• Managed and built VMs and expert in VMware.
• Performed various file system changes to accommodate upgrades in applications, services and databases.
• Worked in Mission Critical Production environment that deals with OS level issues through the Enterprise.
• As a system administrator in a large team is responsible for maintaining a linux operating systems like Suse 10/11.
• Successfully upgraded SUSE 10 to 11 on Oracle production standby servers.
• Monitoring the hosts and networks using NAGIOS, Iostat, VMstat, MPstat and Other Tools
• LDAP configuration and management.
• Worked on Amazon Web Services - AWS (Cloud Computing).
• Good knowledge in structuring the documentation for Architectural Design and Build Plan Documents.

Environment: Red-Hat Enterprise Linux 5.x, 6.x, Solaris 8 & 9, SUSE 10.x & 11.x, SAN, NFS, NIS, Windows 2003, 2008, VMware ESX, VERITAS Volume Manager, VCS, VERITAS Netbackup, AWS, Nagios, Puppet, HPSA Kickstart.

Confidential,Des Moines,Iowa

Unix/Linux Administrator

Responsibilities:

• Installed, configured & handled troubleshooting of Solaris 8/9 and Red-Hat 3/4 on Sun Enterprise Servers and AIX on IBM Blade Servers.
• Set up the Domain Name System by configuring the DNS primary, secondary and DNS Clients and configured the database files.
• Maintained High availability Clusters over AIX servers using HACMP.
• Administered the Network of 400 UNIX Users using Shell Scripts.
• Monitored the Network and System Performance through vmstat, iostat, grapher tool.
• Configured backup and restoration of data from tape in Dump and Tar format using Shell Scripts.
• Implemented backup strategies based on the company policy using Shell Scripts.
• Recovered data from server after a ROOT file system crash.
• Created and added Swap Space at runtime.
• Part of team for Installation and configuration of DB2.
• Configured additional storage devices, partitioned hard disk based on the project requirement.
• Installed several security packages like SNORT, tcpd, tcp-wrappers & ASSET.
• Implemented security in systems and network for all Sun Enterprise Servers & Desktop Servers.
• Handled Day-to-Day operation of all servers running Production jobs, Backups, Restores and Report generations.
• Worked with heterogeneous Client & Server management.
• Backed up and restored data from tape in ufsdump, tar, cpio & dd format.
• Configured the Send Mail configuration file, created e-mail ids, created alias database.
• Handled troubleshooting the configuration file, configured the Boot file for the Domain Name Server to boot, configured and updated the Zone database.
• Installed various software packages such as tcpd, ipfilter and patching the appropriate software.
• Planned for storage and backup including studying the disk space requirement and backup device performance.
• Tested and implemented various types of software for backup.
• Used heterogeneous backup software for Windows and UNIX to backup and retrieve file systems without loss of data.

Environment: Red-Hat Enterprise Linux 3.x, 4.x, Solaris 8 & 9, SUSE 9.x & 10.x, AIX, SAN, NFS, NIS, Windows NT & 2003, VERITAS Volume Manager, VCS, VERITAS Netbackup, DELL Poweredge 2850, 2950, IBM DB2, Oracle 9i, Samba, HACMP.

Confidential

Unix/Linux Administrator

Responsibilities:

• Setup a couple of hundred VM's running CentOS to be used for web,database,application, mail, ftp, monitoring and git repositories.
• Installed and configured Red Hat Linux Kickstart and Solaris jumpstart Servers.
• Used Python programming in Linux platform to design the front-end portion of the plug-in.
• Worked on redhat 4.x and performed daily tasks using CRON scheduler and automated it.
• Discussed and planned the development issues with the team members and the lead.
• Used languages like html, JavaScript and Ajax to create the back-end portion of the plug-in.
• Daily tasks such as taking data backups, cleaning junk content and updating software.
• Configuration of Hardware and Software RAID on Digital & Sun Servers.
• Installation of Oracle Patches and Troubleshooting, Creating and modifying application related objects, Creating Profiles, Users, Roles and maintaining system security.
• Configuration and maintenance of NIS, NFS, DHCP and DNS Servers on Solaris.
• Administrative tasks such as System Startup/shutdown, Backup strategy, Printing, Documentation, User Management, Security, Network management, dumb terminals and devices carried out.
• Responsible to handle the Server Administration and Asterisk Server Installation and Configuration in Linux. .
• Worked as part of Testing Team in Application testing using Manual methods and Scripts.
• Installed and implemented NAS with RAID 1 and RAID 5 configurations.
• Monitored load and performance on the infrastructure and added capacity as needed.
• Installation, configuration and management of postgresql & mysql database servers.
• Client interaction for requirement gathering, so as to design and plan the software and hardware infrastructure.
• Familiar with Disk Management Utility. Hands on experience in file system creation and file system management.

Environment: Red-Hat Enterprise Linux 8/ 9/ AS3.0/ AS4.0, Solaris 8 & 9, AIX, NFS, NIS, Windows NT 4.0, VERITAS Netbackup, HACMP, WebSphere, EMC Disk Array, Apache, IBM DS4300 Storage System, ESS Shark with SAN environment.