PROFESSIONAL SUMMARY:

• Over 10+ years of experience in DevOps, Build & Release Engineer and Configuration Management. Implementing and maintaining Source Code Management.
• Worked on installation, configuration, maintenance and troubleshooting of Red hat Linux, Suse Linux, Ubuntu, Fedora, CentOS, IBM AIX, Sun Solaris and some Windows Servers.
• Worked on installation and configuration of various Unix/Linux platforms: DHCP, DNS, NFS, FTP, SSH, Sendmail, Apache, Samba, RPM package management, YUM.
• Experienced in DevOps environment with exposure to various DevOps tools like Puppet, GIT, SVN, and Chef.
• Development of OS dependent/independent Puppet modules and other templates for large environment system deployment configuration.
• Managed GIT and SVN as Source Control Systems.
• Proficient in administration of various continuous Integration tool like SubVersion (SVN) and Jenkins to maintain and integrate developer’s codes and configuration files into shared repositories.
• Worked on installation of Automation toolPuppet and used puppet for server configuration management.
• Created and maintained various DevOps related tools for the team such as provisioning scripts, deployment tools, and development and staging environments on AWS, Rack Space and Cloud.
• Migration of various applications to AWS cloud.
• Rapid provisioning of pre - configured Linux instances on demand in DEV/IT, UAT and Production environment through AWS (EC2).
• Expert in installing, configuring and maintaining Samba server as well as Apache Tomcat, WebSphere Application Servers.
• Extensive experience using Puppet and Chef Configuration management.
• Experienced in administering and deployment of Sun Solaris, Red Hat (Linux) & AIX servers via VMware.
• Managed servers on the Amazon Web Services (AWS) platform using Puppet configuration management.
• Excellent experience working on various scripts like Shell, Korn, Bash, Ruby, Python.
• Working experience on AWS Cloud.
• Experience in developing automation scripting in Python and JavaScript and Puppet to deploy and manage Java applications within Linux servers in various environment including development, QA and production.
• Experience in installing and implementing RAID in mission critical servers.
• Experience with configuration and administration of external storage (SAN/NAS).
• Experience in monitoring system performance, tuning including, disks, network and CPU by itself.
• Experience working on 24X7 rotation support.

TECHNICAL SKILLS:

Operating Systems: Linux (RedHat 3.x,4.x,5.x,6.x SUSE 8)Unix - IBM AIX 5.x,6.x,7.x, Sun Solaris, HP-UX: Windows 2000/NT4.0,windows 95/98/ME/XP, VMware ESX 2.x,3

Hardware: z/VM-9 series, HP 9000 Model K 580, HP 9000 K460,Hitachi arrays, Backup Devices, Ethernet Hubs, Routers, Repeaters, Jukebox, Printers DELL Poweredge 1650, 2850, 2950, 6400

Web/Application Servers: Websphere Application Server (WAS)3.5,4.0, Netscape/iPlanet Server, MQSeries, WebLogic, JBoss, Server, IBM HTTP Server, HTML, DHTML, XML, Java Script, JSP, Servlets, EJB

Networking: TCP/IP, NIS, NFS, DNS, DHCP, Cisco Routers/Switches, WAN, SMTP, LAN, FTP/TFTP

RDBMS: IBM UDB2, Oracle 7.x/8.0/9i, MS-SQL Server 2008/R2 and MS-Access 97/95

Programming Languages: C, Java, Ruby, Python, HTML, Perl and Shell programming

Applications: HACMP, Samba, Tivoli (TSM), Veritas, NetBackup, Veritas Volume Manager, LVM, Xymon, HPSA

PROFESSIONAL EXPERIENCE:

Confidential, Lewisville, TX

Sr. DevOps Engineer / Linux Architect

Responsibilities:

• Configuring and maintaining Linux virtualization in test and production environment using VMware vSphere Client and HPSA for Redhat Linux OS installation.
• Installation and configuring DHCP, DNS, web (Apache, IIS), mail (SMTP, IMAP, POP3 ), and file servers on Red Hat Enterprise Linux servers .
• Installing and setting up Oracle9i on Red Hat Linux for the production team.
• Working on Nagios for the monitoring the performance of the servers.
• Working on configuration management tools like Chef, Puppet .
• Construction of dual nodes of puppet master to maintain continuous availability in the automated deployment procedure.
• Construction, testing and deployment of custom puppet modules to the entire environment across Linux platform.
• Gained Expertise in maintaining all the revisions of configuration and standard protocols under Subversion (SVN).
• Maintained security configuration, pre configured applications and servers in Docker container.
• Redesigning and redeploying the Nagios implementation. Nodes automatically added/removed themselves via Puppet.
• Deploying Puppet, Puppet Dashboard for configuration management to pre-existing infrastructure.
• Manage various AWS/AZURE environment for provisioning of Linux servers and services implemented by the providers.
• Set up and configuration of various instruments on AWS direct connect to create DEV/IT, UAT and Production environment for short-term internal projects.
• Networking trouble shooting using 'netstat', 'ifconfig' and 'tcpdump' etc
• Administrating user accounts by adding them to the requested applications, servers, groups, and file system quota.
• Setting up class specific sudo rules so they are linked with their respective servers as requested by Environment Build Review team.
• Write Scripts for automating and testing the code using Perl, Korn,Ruby,Bash and Python.
• Configuring and administrating disk storage allocation using Veritas Volume Manager as well as standard command line procedures.
• Team player with the ability to learn and apply new knowledge by personal initiative.

Environment: RedHat Linux 5.x, 6.x, HPSA 7.88, Xymon, VMWare vSphere Client 5.0.0, VERITAS Volume manager, Veritas Net backup, Jboss, Apache, JVM, Oracle 10g, LDAP.

Confidential, Hanover, PA

Sr. Systems Engineer

Responsibilities:

• Installed and configured servers using Red Hat Linux Kickstartmethod.
• Installation and configuration of Red Hat Linux 4.3 and 5.7 on VMware ESX servers 5.0 and cloned the servers.
• Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager commands.
• Configuration and administration of Fiber card Adapter’ s and handling of SAN (SAN arrays, HITACHI, EMC).
• Configuration and Administration of NFS, DHCP, FTP, LDAP and Sendmail.
• Exposure to common DevOps tools like GIT, Maven and Jenkins.
• Worked with GIT for source control, Jenkins and Maven for build Management to automate the software build and Nagios for Monitoring.
• Deployed applications like Jboss and Websphereby using Puppet tool.
• Set up preconfigured RHEL5.x and 6.x on local and in the cloud on AWS EC2.
• Provisioning of RHEL5.x/6.x servers via AWS cloud.
• Worked on Puppet for the automation of the tasks.
• Created Puppet manifests.
• Installation and configuration of Ruby and Puppet using foreman installer.
• Deployment of Linux configuration and its updates via puppet.
• Worked with Engineering team to evaluate the adaptability and compatibility of automation tools such as chef and puppet.
• Storage and update of pre-configured VM images, applications, and tools in Docker to reduce the downtime and maintain high availability.
• Assisted the release management team on various software build updates and maintained continuous Integrity/revisions of the build codes via Jenkins easy debugging and troubleshooting.
• Developed shell scripts and scheduled CRON jobs.
• Performance monitoring with Sar, Iostat, VMstat, TOP and Other Tools.

Environment: HP Proliant servers HP BL460, Cisco UCS, VMware ESX sever 5.0, Red Hat Enterprise Linux 4.3/5.7/5.8, VERITAS netback up 6.5, Puppet, Forman, AWS, GIT, Maven, and Jenkins, Deep security.

Confidential

Linux Administrator

Responsibilities:

• Performed installation, configuration and maintenance of Redhat Linux 5.3.
• Worked on HP and DELL servers running on Redhat Linux and SUSE Linux 9 .
• Linux kernel, memory upgrades and swaps area. Redhat Linux Kickstart Installation. Configuring DNS, DHCP, NIS, NFS in Redhat Linux other Network Services.
• Performed daily backups, restoration of data as per requests from developers using VeritasNetbackup.
• Experience in Servers consolidation and virtualization using HPSA VSphere virtual infrastructure, HPSA VSphere ESX.
• Audited the servers after the installation and prepared documents.
• Worked on EMC disk storage to allocate disk space.
• Network trouble shooting using ‘ndd’, 'traceroute', 'netstat', 'ifconfig' and 'snoop' etc
• Network Monitoring Using Nagios tool.
• Monitored overall system performance, performed user management, system updates and disk & storage management.
• Created users, manage user permissions, maintain User & File System quota on Redhat Linux and AIX.
• Production support of Apache and JBoss including installation, configuration, management and troubleshooting.
• Implementing RAID 1 and RAID 5 on mission critical servers such as domain controllers and file servers.
• Worked on networking services including NIS/NFS, DNS, SSH, DHCP, NIDS, TCP/IP, ARP, applications, kickstartand print servers to ensure optimal networking, application, and printing functionality.

Environment: Red Hat Linux 5.x/4.x,Oracle 9i, EMC SAN (Symmetric), NIM, NFS, HMC, HACMP, Apache, Samba, Nagios, LPAR, DHCP, SMTP, DNS, LVM, LDAP, Shell Programming (bash, ksh), DELL Poweredge 1650.

Confidential

Linux System Administrator

Responsibilities:

• Installed and configured servers using Red Hat Linux Kickstart method.
• Migration and configuration of Red Hat Linux 5.1 on Dell PowerEdge, HP Proliant.
• Experience in Servers consolidation and virtualization using VMware virtual infrastructure, VMware ESX 4.0, VMware Vcenter.
• Configuration of NIS, NFS, AutoFSonRed Hat and AIX Servers.
• Pre-Install, configuration and installation of Oracle 10g on veritas cluster nodes.
• System and Network Administration, which include but is not limited to installing Red Hat Linux5.1, AIX5.2, NFS/NIS management and DNS Configuration.
• Installation and configuration of Logical Volume Manager, Veritas cluster Suite.
• Handled System tuning, log maintenance and disk space management.
• Wrote UNIX shell scripts for automated installations to extract logs using Bash, Perl, Ksh.
• Implementation on various Red Hat Linux and SAN related requirements of PMR users.
• Installed and configured J2EE Application servers on Linux environments.
• Installed fix packs to overcome Appserver problems and installed IBM HTTP Server.
• Initiated backups on Linux servers using VeritasNetbackup.
• Used unix native backups and restore using ufsdump, ufsrestore& tar commands.
• Remote Server (Linux) Administration for Disaster recovery site.
• Network trouble-shooting using netstat, ifconfig and TCPDUMP.
• Installed application connectivity software to enable IBM print services. Configured and administered firewall rules to effectively monitor system files, port security and network traffic activity coming through the firewall.
• Experience in Installation and configuration of JBOSS on Red Hat Linux servers.
• Installed and configured Sudo for users to access the root privileges.
• Developed automated processes that run daily to check disk usage and perform clean up of file systems on UNIX environments using shell scripting and CRON.
• Experienced in Troubleshooting critical hardware and software issues and other day-to-day user trouble tickets.

Environment: DELL Poweredge 1650,2850,2950,6400,RHEL 5.1, VCS 5.1 and VERITAS netback up, VMware ESX sever 3.5, SAN switches, EMC Symmetrix, HP Network Node Manager, Web logic 8.1, Websphere, Korn, Bash, Perl.