SUMMARY

• A System Administrator with 8 years of experience specialized on Redhat - Linux (4x,5x,6x& 7x), CentOS (3x,4x,5x & 6x), Ubuntu (6x,7x,8x,9x & 10x), SUSE Linux (9x,10x & 11x), AIX (V5.3, 6.1, & 7.1), and Windows Environment.
• Experience in installation, configuration, tuning, security, backup, recovery and upgrades of Linux (RedHat, Centos, Ubuntu, SUSE & AIX).
• Experience in creating the company's DevOps strategy in a mix environment of Linux (RHEL, CENTOS) servers along with creating and implementing a cloud strategy based on Amazon Web Services.
• Specialized in Configuring Physical Volumes, Volume groups, logical volumes and file systems on Redhat, Centos, Ubuntu, SUSE and AIX linux.
• Extensive experience in creating and configuring RAID in Redhat-Linux while Implementing Disk Quotas and Managing ACLs per user and groups as per company requirement.
• Experience in installing, maintaining, and troubleshooting JBOSS in Linux/Unix, Weblogic Apache, Nagios and security software's.
• Experience with CI tools (Jenkins, Build Forge, Bamboo) and Version Control Tools (JIT, SVN).
• Expertise in User Management through creating and managing users and groups in RedHat, Centos, Ubuntu, SUSE and AIX Linux.
• Designed and implemented HPC (High Performance Computing) virtual system that included migrating physical machine’s applications to virtual machines then upgrading OS of the virtual machine to verify the physical machine application.
• Experience with installing OS from NIM server using mksysb image.
• Performed a WebSphere Application Server Refresh Pack upgrade on AIX to a more stable Version.
• Hands-on experience in installation, configuration, administration and troubleshooting HACMP and HACMP/ES clusters in production environments.
• Experience developing puppet modules to manage and automate install process.
• Experience maintaining application in AWS.
• Worked on Version control tools like GIT and SVN
• Extensive knowledge in Adding and Migrating Physical volumes, Importing and Exporting volume groups, Paging space and Mirroring using LVM and VERITAS Volume Manager.
• Have experience in Weblogic Server 10g and 11g, WebLogic Platform.
• Performed User Administration and Hardware setup and support of Storage and managed paging space.
• Expanded Experience in Network Management like DNS, NIS, NFS, LDAP, Send mail, ftp, SSL, SSH, HTTPS, SFTP, TFTP and system troubleshooting skills.
• Implementation of TCP/IP& related Services-DHCP/DNS/WINS
• Good knowledge in product deployment in servers, mail servers, monitoring tools & shell scripts, networking.
• Installing, configuration and troubleshooting network routers, switches, load balancers, and security devices.
• Switches: Basic Configuration & VLAN setup on Cisco 1900, 2950, 2960 Switches.
• Router: Basic Configuration & monitoring of Cisco 2500, 2600, 1800
• Back-up and restore of all critical resources including router & switches IOS, Outlook, DHCP, DNS
• Security administration port security on switch and IP security on Router via Access list
• Hands on experience (Knowledge) on performance monitoring tools like Vmstat, Iostat, SAR, Nmon, and Topas.
• Experience on patching Linux servers to latest versions, and installing RPM packages using Satellite server, Yum Server and up2date Command line.
• Acquired Strong Skills in installing & Configuring LDAP (Server & Client), creating admin, migrating users to LDAP server and configuring database to LDAP server.
• Advance knowledge on Jump Start/Kick start and NIM Installation.
• Performed Server health monitoring and system tuning as per vendor recommendations.
• Quick analyzing and identifying ability of operational issues including good understanding of backups, deployment and load balancing techniques.
• Extensive knowledge in job scheduling tools like Nagios.
• Organized and Managed everyday administration tasks like adding and removing users, files, share permissions, trust management, replication management, server backups and server setups on LINUX.
• Knowledge in Linux command line & bash shell scripting.
• Providing 24X7 On-call Production and Customer Support.

TECHNICAL SKILLS

Operation Systems: Red Hat Enterprise Linux (3.x, 4.x, 5.x & 6.x), Centos (3.x, 4.x, 5.x, & 6.x) Ubuntu (6.x, 7.x, 8.x, 9.x, &10.x), SuSE Linux (9.x, 10.x, & 11.x) and AIX (V5.3, 6.1)

Hardware: IBM Blade Server HS22, Dell Power Edge Series, HP BL460, C7000. ILO, SunFire T2000

Application Server’s: Web Server Apache, Weblogic, Litespeed, DNS, NIS, NFS, MS Terminal Server, Windows 2003/2008 Active Directory, Jboss, Microsoft IIS Server4/5, Symantec Ghost, mail server, MTA, MDA, (POP, IMAP), Mongrel, Thin, Tomcat, IIS, Jboss, NTP, Sendmail, Postfix, Secure LDAP, Auto mount, Windows DC, SAMBA as Domain Controller with LDAP

Databases/ scripting: MySQL, MS SQL Server, Oracle 7, 8, 9, 10 & 11g, bash Shell scripting, Ksh Scripting, Perl. Scripting, HTML, MS Access, MySQL Replication, MySQL High Availability with DRBD, MySQL Disaster Recovery and MySQL Clustered

Storage/ Networking: TCP/IP, NFS, FTP, DNS, NAT, ifconfig, Cisco routers, netstat, EMC, FC SAN, NAS, EMC Clarion

Backup/ Monitoring,: Windows, Nagios Monitoring System, UC4,Mail Servers: SMTP, POP, IMAP, Exim

Languages and Tools: PL/SQL, UNIX Shell Scripting, Jboss, Weblogic, OSB, Datapower, C, Java, J2EE. Jira, GIT, SVN, Remedy, Veritas Volume manager.

PROFESSIONAL EXPERIENCE

Confidential, Washington DC

Linux/AWS/DevOps Engineer

Responsibilities:

• Worked on Installation, Configuration, Upgrade and Maintenance of Unix/Linux (RHEL/SUSE/CentOS /AIX) OS.
• Worked on Administration of the network servers DNS, NIS, NFS, SENDMAIL.
• Installing WAS 8 & 8.5 on the AIX LPARS on new IBM P7 Servers.
• Building new Red Hat Linux Servers v5, 7 on Dell PowerEdge servers using KVM and kick starts.
• Monitoring and managing the alerts messages in Event Management application for all the AIX WAS servers.
• Working in SRTS and Team Track to manage change requests, service requests, incident management and incident tickets.
• Worked on Deployment and monitoring of scalable infrastructure on Amazon web services (AWS) & configuration management usingpuppet.
• Worked on Development of puppet modules to manage configurations and automate install process.
• Designed Puppet Modules to manage configurations and automate installation process.
• Work with development/testing, deployment, systems/infrastructure and project teams to ensure continuous operation of build and test systems.
• Wrote Puppet manifests for deployment and configurations. Deployed Puppet DB.
• Build application and database servers using AWS EC2 and create AMIs as well as use RDS for Oracle DB.
• Continuous Delivery is being enabled through Deployment into several environments of Test, QA, Stress and Production using Nexus and Jenkins.
• Worked on version control tools like GIT and SVN and integrated build process with Jenkins.
• Worked with VMWare tools like vCenter &vSphere to manage VM's running on ESX cluster nodes and also experience working vMotion.
• Cisco device management for all critical network resource including Cisco 1900, 2950, 2960 Switches & Cisco 2500, 2600, 1841 router.
• Work on network and routing protocols such as TCP/IP, DNS, DHCP, OSPF and BGP, SMTP, NFS and SIP.
• Worked on Utilization of Cloud formation and Puppet by creating DevOps processes for consistent and reliable deployment methodology.
• Supporting servers with Oracle 10g & 11g and MySQL Databases, coordinating with DBA’s for Kernel Tuning and performance monitoring.
• Created documentation and worked on 24X7 Support

Environment: Linux (RHEL 5.x& 6.x), SUSE 11/10, CentOS (5.x, 6.x), AIX 6.1, Oracle 11/10g,LDAP,http, Samba, Perl, Shell Scripting, Bash, VERITAS Volume Manager (VVM), F5 Load balancers, SiteMinder5.5/4.5, EMC Storage SAN, VERITAS Cluster Server (VCS), DNS, NIS, NFS, SNMP, NTP, PS, PRSTAT, VMSTAT, MPSTAT, PERFMETER, IOSTAT.

Confidential, Detroit, MI

DevOps Consultant

Responsibilities:

• Installation, Configuration and upgrade of Redhat Linux 4/5/6, CentOS 4/5, SUSE 10/11, Ubuntu (8.04, 9.04 & 10.04), AIX (V5.3, 6.1) Operating System.
• Installation of Packages and Patches for AIX (5/6), Redhat Linux 4/5/6, Centos 4/5, and SUSE 10/11.
• Experience in installing and configuring Network Services: TELNET, FTP, DHCP, SSH, SAMBA, HTTP, TFTP etc.
• Configuring NFS, NIS, NIS+, DNS, Auto Mount& Disk Space Management on SUN Servers.
• Experience in Configuring and Managing Virtual Disks, Disk Mirrors & RAID Levels.
• Worked with OVF "Open Virtual Machine Format" supported tools VirtualBox, Redhat Virtualization (XEN), and VMware Workstation.
• Experience with VMware Virtualization using ESX hypervisor of Vsphere 4.0.
• Installation, Configuration and Maintenance of Samba, Apache Tomcat, Web Sphere and Jboss servers in AIX and Linux environment.
• Experience in Active directory configurations and support.
• Deployed Puppet, Puppet Dashboard and PuppetDB for configuration management to existing infrastructure.
• Worked on installation and configuration of DevOps tool, Puppet.
• Experience with setting up Linux servers for Oracle Real Application Clusters and configuring SAN based mount points.
• Experience in storage administration support with EMC Symmetrix / DMX, Clariion, NetApp NAS filer and Brocade / Cisco Fiber Switches for zoning purposes.
• Experience in troubleshooting host-based connectivity issues related to EMC software like PowerPath, Navisphere, ECC client software and third-party HBA's (Emulex and Qlogic).
• Emulex and QLogic HBA cards installation and configuration of the host servers.
• Experience with Connectrix Manager and Data Fabric manager, Zoning, LUN allocation, Storage allocation to storage groups.
• Expertise in Performance Monitoring and Performance Tuning using Top, PRSTAT, SAR, VMSTAT, PS, IOSTAT etc.
• Expertise in creating and managing Logical Volume Manager in Redhat, CentOS and SUSE Linux.
• Server Consolidation and Migration of Applications on Oracle Enterprise and Java Applications.
• Experience in building Production Servers and validation for new build releases.
• SENDMAIL configurations and administrations, testing the mail servers.
• Creating new file system, managing & checking data consistency of the file system.
• Setup and configure Veritas NetBackup 5.x, 6.x and 6.5x Net Backup server / client & tape libraries.
• Monitor Modify and Optimize NetBackup activity, backup schedules and reporting to proactively avoid issues.
• Performed automated installations of Operating systems using Jumpstart, Kick Start & NIM installation.

Environment: Redhat (4.x, 5.x, 6.x), CentOS (4.x, 5.x), SUSE Linux (10.x, 11.x), Ubuntu (8.04, 9.04, 10.04), and AIX (V5.3, 6.1), NetBackup (5.x, 6.x), VERITAS Volume Manager 4.x/5.0, SAN EMC Clarion CX 700/ CX 600/ CX 500.

Confidential, Atlanta, GA

Linux/UNIX Administrator

Responsibilities:

• Worked on RedHat Enterprise Linux 3/4/5, SUSE Linux 9/10/11, and Ubuntu (8.04 & 9.04).
• Installation and configuration of Linux servers using kickstart & support for various applications which runs on Linux environment followed by performance tuning, patching and maintenance.
• Designing, Implementation, Configuring, & Managing Puppet server.
• Working knowledge on Apache, Tomcat and Jboss.
• Launching and configuring of Amazon EC2(AWS) Cloud Servers using AMI's (Linux/Ubuntu) and configuring the servers for specified applications.
• Supporting 300+ Linux servers in production/stage/development environment.
• Creating VMware Lab setup as per Internal QA team’s requirement using VMware ESXi servers.
• Worked on VMware Virtual Center Server for centralizing ESX and ESXi servers.
• Support and troubleshooting of LinuxApache, MySQL. Have knowledge on MySQL, Oracle Database Administration.
• Provided Support of multi flavor UNIX & Linux environment with various responsibilities.
• Setup and configured network TCP/IPat all levelsonLinuxservers
• Implemented Domain Name Server by Using Primary and Secondary DNS Servers.
• Configured RedHat Enterprise Linux Server as a Data Storage Server.
• Installed and Configured DNS, DHCP, NFS, NIS, http, tftp and other network services.
• Worked with object oriented software development methodologies and practices across all phases of the Software Development Lifecycle.
• Worked on Unix/Linux user's creation, file/dir. level permissions, Sudo permissions etc.
• Worked on Updating/patching Linux Servers with latest rpm packages.
• Involved in the installation, monitoring and support of Unix based servers, firewalls, Cisco networks, perimeter security technologies, Internet technologies and remote office WAN/ LAN connectivity.
• Extensively Worked on Apache webservers and Nagios.
• Worked on daily basis for Linux server maintenance and support to developer's team for their issueswith application, tuning, troubleshooting, and software running.
• 24x7 support for the LINUX servers.

Environment: Redhat Linux (3.x, 4.x, 5.x), SUSE (9.x, 10.x, 11.x), Ubuntu (8.04, 9.04), Puppet, Apache, Tomcat, Jboss, VMware, XEN, KVM, ESX, My SQL, Apache High Availability, CISCO Devices, Subversion, Nagios, WAN, LAN, TCP/IP.

Confidential, Alpharetta, GA

AWS Consultant

Responsibilities:

• Installed, configured, troubleshoot, secured and supported RedHat 4/5, CentOS 3/4/5 and SUSE Linux9/10servers and also product servers.
• Worked on installation and configuration of Weblogic.
• Installed SOA suite and configurations as well as supported AWS set ups
• Worked on troubleshooting application servers Tomcat and Jboss.
• Worked on Installation and configuration of FTP, TFTP, HTTP, SAMBA, DNS etc.
• Deployment of application patches and upgrades; perform reboots & configuration changes.
• Wrote scripts on shell, bash and Korn.
• Worked on IMAP, POP, SSH Configuration and Hardening.
• Server Security Auditing, Vulnerability Assessment and correction.
• Worked on setting up accounts, remote backups, DNS clusters, Failover solutions etc
• Administered user accounts, performed user maintenance on different Linux environment.
• Monitored security issues, administered system mail and Internet access. Configured network file systems.
• Worked on configuring and troubleshooting VPN Technologies (OpenVPN, Poptop etc).
• Monitored and Managed Network Devices using Cacti, PRTG, etc.
• Security Protection (Intrusion Detection with Snort, tripwire and ipfw/iptables etc).
• Linux Kernel Security, regular maintenance, recompiles and OS reinstalls.
• Worked on Core System Files Hardening and Optimization (sysctl.conf, resolv.conf etc)
• Monitored servers and responded to event notifications. (Service outages, High Load Alerts etc) experience with Nagios.
• Working knowledge of Database Technologies (MySQL, PGSQL), performance Optimization and Hardening.

Environment: Redhat Linux (4.x, 5.x), Centos (3.x, 4.x, 5.x), SUSE (9.x, 10.x), Oracle 10g& 11g, SOA, Nagios, Tomcat, Jboss, DNS, IMAP, POP, SSH, SQL, PL/SQL, shell scripts,, Putty, Storage, Cpanel, WHM, VPN, Cacti, PRTG, RDNS

Confidential

Linux Administrator

Responsibilities:

• Worked as a Systems Administrator onRed Hat3/4, CentOS 3/4and Ubuntu (6.06, 7.04) servers.
• Worked on applying patches, installed monitoring tools, upgradedBIOSon HPC Clusters.
• Scheduled users to performHigh Performance Computingactivities on the Linux cluster.
• Created users and groups and assigned them appropriate quotas and ACLs as per company requirement.
• Experience managing and tuningMySQLand writing SQLscripts.
• Identified and solved any issues or errors.
• Installed and configuredNagiosmonitoring tool to manage infrastructure.
• Applied patches and supportedLinux Servers with Oracle Database servers.
• Worked onKernel tuningand Kernel patching.
• Monitored System Performance, Tuned and optimized systems for better performance.
• Managed Disk usingLVM, resized disk space when required. Managed disk space fromNetApp filers
• Setup NTP server and synchronized clients withNTP server.
• Troubleshoot application problems by diagnosing issues.
• Provided 24/7-support coverage, pager support and weekend support.

Environment: Red Hat Linux (3.x & 4.x), Centos (3.x, 4.x), Ubuntu (6.06, 7.04), Netapp, NTP, Nagios, MySQL, SQL, HPC