SUMMARY

• 7+ years of experience specialized in System Administration working on Red Hat Linux, Solaris, SuSE Linux, AIX, CentOS, Fedora, OEL, Windows environments, and VMware vSphere.
• Overall 7+ years of experience as Linux system administrator who is Motivated, enthusiastic, and pro - active with an excellent 'can-do' attitude and ‘go-to’ personal.
• Installation and upgradation of Packages and Patches configuration mgmt, version control, service pack. & reviewing connectivity issue regarding security problem.
• Experience on Web servers such as Tomcat 3.x, 4.x, 5.x, 6.x, and 7.x & Apache Server 1.x, 2.x and integrating them with Web logic 10.x servers.
• Experience in configuration ofNIS, NIS+, DNS, DHCP, NFS, LDAP, postfix, send mail, FTP, remote access, security management and Security trouble shooting skills.
• Experienced in working with the LAMP servers.
• Installing and configuring the LAMP servers in cloud environment.
• Monitoring and ensuring the behavior of the four open source web servers in LAMP.
• Experienced in implementing Splunk, Puppet, and Chef.
• Designing roles and groups using AWS Identity and Access Management (IAM) enabling security to the customers as it is financial matters and should be at-most confidential.
• Designing EC2 instance architecture for cloud computing to meet high availability application architecture.
• Utilize AWS CLI to automate backups of ephemeral data-stores to S3 buckets, EBS and create nightly AMIs for mission critical production servers as backups.
• Updating and maintaining Relational databases in AWS using RDS and also use Elastic Map Reduce (EMR) for analyzing the data stored in the databases.
• Experience in Creation and managing user accounts, security, rights, disk space and process monitoring in Red Hat Linux.
• Experience on SSL and TLS layers for secured communication and authentication.
• Experience using cloud providers and API’s for Amazon (AWS)
• Experience in Installing, upgrading and configuring Red Hat Linux 4.x, 5.x, and 6.x using Kickstart Servers
• Experienced in implementing and maintaining an Apache Tomcat /MySQL/PHP, LDAP, LAMP web service environment.
• Working experience in building and support using Git and Integration tools like Jenkins.
• Experience with Veritas Volume Manager (VxVM), Veritas File System (VxFS), Veritas Net Backup, Veritas Clustering with SAN, NAS environment.
• Experience in installing, configuring and implementing the RAID technologies using various tools like VxVM and Solaris Volume Manager.
• Experience in Server monitoring, capacity planning, application monitoring with the help of Nagios, Cacti, Zabbix, Puppet, Splunk.
• Experienced on Red Hat Satellite Server with custom repositories to provide a stable management solution for the Linux environment.
• Participated, documented, managed ITIL controls and supported Linux environment.
• Expertise in scripting for automation, and monitoring using Shell, PHP, Python & Perl scripts.
• Experience in writing Shell scripts to automate the administrative tasks and management using cron..
• Good understanding of OSI Model, TCP/IP protocol suite (IP, ARP, TCP, UDP, SMTP, FTP, and TFTP)
• Experience in Installing Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux systems.
• Accessed ARM based SoC hardware design for software design and test.
• Installation and configuration of JBoss, Web Sphere 5.1/6.0 Application Server on Solaris and Linux boxes.

TECHNICAL SKILLS:

Operating Systems: RHEL 3/4/5,6, Solaris Release 2.10/2.9/2.8/2.7, IBM-AIX 5.X, zVM Windows 2003, 2008, 2012 and NT

Hardware: HP Proliant, Blade servers, Sun Servers E450, E3500, E4500, E5000, E6500, E10k, E15k, E25k, Sun Ultra's, V210, V280, V490, V880, V6800 SUN Ray (1g Ultra Thin Client) SUN Desktops (SPARC 10, 5), DMX3 and DMX4 Storage Arrays, F5

Software: Veritas Volume Manager 3.5/4/5, Veritas File System,Veritas Cluster Server 3.5, Veritas Netbackup 6.0, MS-Office/MS-Project

Web/ Application Server: Tomcat, Apache DB2, Oracle, LAMP

Network Protocols: DHCP, DIG, DNS, SNMP, SMTP, Ethernet, IOS, netstat, NFS, NIS, nslookup, RIP, OSPF, BGP, TCP/IP, and tcpdump, FTP, TFTP.

Cluster Environment: Sun Cluster Servers 2.2, 3.1, 3.2 and VERITAS Cluster Servers 4.1

Programming Languages: C, C++,SQL, HTML, PHP, XML, Bash, Perl and Shell Programming, JSP, Pythonand Ruby

Other tools: VMware VSphere, ESX/ESXi, VCenter Server, Datacenter Puppet, Splunk, Chef, Nagios, Git and Jenkins.

PROFESSIONAL EXPERIENCE

Confidential, Fishers, IN

Sr. Linux Administrator / DevOps Engineer

Responsibilities:

• Building and supporting environments consisting Testing, Contingency, Production and Disaster Recovery servers.
• Implemented Puppet, Splunk, and Chef tools.
• Installed and integrated various plugins in Jenkins for continuous integration of the code from repository.
• Designing roles and groups using AWS Identity and Access Management (IAM) enabling security to the customers as it is financial matters and should be at-most confidential.
• Designing EC2 instance architecture for cloud computing to meet high availability application architecture.
• Utilize AWS CLI to automate backups of ephemeral data-stores to S3 buckets, EBS and create nightly AMIs for mission critical production servers as backups.
• Authentication of system and application using SSL certificates.
• Used SSL for the encryption of data to ensure secured communication.
• Updating and maintaining Relational databases in AWS using RDS and also use Elastic Map Reduce (EMR) for analyzing the data stored in the databases.
• Working on Apache, MYSQL and PHP servers together known as LAMP.
• Installing and monitoring all the four servers in LAMP.
• Involved in maintaining the repository in the distributed environment using Git.
• Performed OS provisioning using kickstart through BMC Blade Logic.
• Performed patching of RHEL using yum, up2date and BladeLogic.
• Supporting infrastructure environment comprising of RHEL and Solaris.
• Experience with VMware Virtualization using ESX hypervisor of VSphere.
• Installation, Configuration and up gradation of Red Hat Linux 4, 5.X, and using Blade Logic.
• Resolving different Users request.
• Create, extend, reduce and administration of Logical Volume Manager (LVM) in RHEL environment.
• Creation, Installation and administration of Red Hat Virtual machines in VMware Environment.
• Creation of SAN File System on Red Hat Linux using multipath configuration.
• Rebuilding of kernel in RHEL using mkinitrd.
• Worked on projects like PCI, SR to ensure all goes well and provided support till servers go in to production environment.
• Configuration of Monitoring tools in Linux and Solaris servers.
• Configuration of Network bonding which include Active/Standby and Active/Active.
• Installation of HBA cards ( Emulex and Qlogic )
• Troubleshooting Network, memory, CPU, swap and File system issues, TCP/IP, NFS, DNS, SMTP in Linux and Solaris servers.
• Performance tuning of Virtual Memory, CPU, system usage in Linux and Solaris servers.
• Supported class monitoring and management tools such as Open NMS, Tivoli and VCO.
• Performance Monitoring and Performance Tuning using Top, prstat, SAR, vmstat, ps, iostat.
• Building of Oracle RAC (Oracle Real Application Clusters) environment.
• Performed Disaster Recovery in RHEL servers which consists of LVM based FS and Red Hat Clustering.
• Installation, configuration and administration of Jboss, Apache, Weblogic, Tomcat and Websphere.
• Creation, initialization, addition of Oracle ASM and FSR devices in multipath environment
• Creation of Jumpstart and Kickstart configuration for the automatic provision of servers using Bladelogic.
• Installation of third party tools using packages.

Environment: Red Hat Linux 5.X, HP & Dell Servers, Oracle/DB2, VMWare ESX 4.x, Autosys, VMware VSphere, ESX, BMC BladeLogic, Weblogic, Jboss, Websphere, Chef, Puppet, Jenkins, Nagios, Splunk and Solaris, Open NMS, Oracle ASM, AWS.

Confidential, Los Gatos, CA

Linux Admin /(Chef & puppet) Developer

Responsibilities:

• Worked with Symantec and BSC team to setup the Symantec O3 IDLINK Open VPN Servers.
• Implemented Bash, Perl, Python scripting.
• Implemented automations tools Chef, Puppet, Splunk.
• Migrated to Red hat satellite server 6 version.
• Worked exclusively on VMware virtual environment.
• Experience in using VMware vMotion to move VM’s from One Datacenter to another datacenter.
• Implementing and Updating packages and patches using RPM and YUM in RedHat Linux Servers.
• Worked on Git for source code management and distributed version control for redundancy and replication.
• Configuring the LAMP servers and monitoring them for expected behavior.
• Build servers using Kick Start, Red Hat Satellite Server, and VSphere Client.
• Worked on variety of Linux platforms Red Hat Linux, Solaris which includes installation, configuring and maintenance of applications on this environment.
• Involved in installation and configuration of various Third party software onto servers.
• Installed and configured various plugins in Jenkins for continuous integration of the code.
• Installed, configured and provided support for Tivoli Monitoring software across various OS platforms like RHEL, AIX and Solaris.
• Installed packages using YUM and Red hat Package Manager (RPM) on various servers.
• Worked with Red Hat Satellite Server which is used to push changes across various servers simultaneously.
• Designing EC2 instance architecture for cloud computing to meet high availability application architecture also worked on the IAM security groups closely.
• Utilize AWS CLI to automate backups of ephemeral data-stores to S3 buckets, EBS and create nightly AMIs for mission critical production servers as backups.
• Performed the daily system administration tasks like managing system resources and end users support operations and security.
• Worked on Nagios and Splunk for automated monitoring.
• Troubleshooting network administration, IIS configuration, DNS setup and modifications, firewall rule sets, local and distributed director, connectivity, and supporting applications.
• Involved in ILMT Agent Deployments and Oracle/SQL Upgrade project which includes various UNIX builds of different OS platforms across various data centers.
• Responsible for independent support of Tier 2 issues: reboots, start/stop services, reset Terminal Service and pc anywhere connections, and administrative server maintenance. Daily follow up with clients to ensure resolution of all issues.
• Provide support to Account Managers, UNIX and Windows technicians, and other departments.
• Used Logical Volume Manager for the management of volumes including creation of physical and logical volumes on Linux.
• Coordinated with various cross functional teams across IT operations to make sure smooth functioning of projects.
• Worked on projects like PCI, SR to ensure all goes well and provided support till servers go in to production environment.
• Worked closely with DBA Team in order to adjust kernel parameters as per requirements.
• Day to day resolution on Linux based issued though SMS ticketing system in compliance to SLA cycles.
• Performed application installation and management on IBM AIX and Linux servers for applications like Web Sphere Application Server (WAS) 7, JBoss 4.2.x, 5.x, Sun JES Web Server 6.1, Oracle 10g, Sybase 12.5 etc.

Environment: Red Hat Enterprise Linux 4.x/5.x/6.1, AIX 6.x, Solaris 8/ 9/10, Tivoli Storage Manager, VMware ESX5, Tivoli Net backup, and Web sphere. Windows 2012, Windows 2008, IIS 7.0 & 7.5, Chef, Nagios, Solaris, JBoss 4.2.x, 5.x, Sun JES Web Server 6.1, Oracle 10g, Sybase 12.5.

Confidential, Houston, TX

Build & Release Engineer

Responsibilties -

• Developed build and deployment processes for Pre-production environments.
• Used Subversion as source code repositories.
• Managed SVN repositories for branching, merging, and tagging.
• Resolved merging issues during rebasing and re-integrating branches by conducting meetings with Development Team Leads.
• Responsible for designing and deploying best SCM processes and procedures.
• Worked closely with software developers and DevOps to debug software and system problems.
• Maintained and coordinated environment configuration, controls, code integrity, and code conflict resolution.
• Used Jenkins, Build forge for Continuous Integration and deployment into Tomcat Application Server.
• Involved in writing parnt pom files to establish the code quality tools integration.
• Implemented the setup for Master slave architecture to improve the Performance of Jenkins.
• Developed Shell/Perl Scripts for automation purpose.
• Used AGILE MVN method to develop a build and also ANT as a build tool.
• Installing, configuring and administering Jenkins CI tool on Linux machines.
• Improved monitoring with Nagios & custom plugins.
• Wrote custom plugins for Nagios.
• Used installing, configuring and administering Jenkins CI tool on linux machines.
• Involved in research of the project application architecture to support/ resolve build, compile a nd test issue/ problems.
• Extensive experience monitoring the servers using Nagios.
• Used JIRA as ticket tracking and work flow tool.
• Installed and configured the Nexus repository manager for sharing the artifacts within the company.

Environment - SVN, Shell/Perl Scripts, SCM, Jenkins, Build Forge, Maven and ANT Tomcat, JIRA and Nagios.

Confidential, Latham, NY

LINUX System Admin

Responsibilities:

• Maintaining and Troubleshooting of FTP Server, Samba Server of the client
• Handling the day-to-day Operations, Install software, apply patches, manage file systems, monitoring performance and troubleshoot alerts.
• Maintain 99.98% uptime of LINUX production servers and follow proper escalation.
• Responsible to solve technical Problems related System administration (Linux of Our Clients).
• Managing Red Hat Cluster, HPC environment etc.
• Building & configuring Red Hat Linux systems over the network, implementing automated tasks through crontab, resolving tickets according to the priority basis.
• Handling LVM related tasks, Creating, resizing LVM, Veritas Volume manager and also managing Cluster environment using Veritas Cluster suite.
• Handling the day-to-day Operations, Troubleshooting & Solve Server Problems in LINUX.
• Installing and configuring Red Hat Linux locally or over the network-kickstart.
• Experience in building binaries using Maven & Xcode.
• Maintaining Server and Systems, provide IT support to User.
• User Administration (setup and maintaining accounts).
• Monitoring system performance, Server load and bandwidth issues.
• Work with DBAs on installation of DB, restoration and performance tuning.
• Updating Systems, Servers and client software's.
• Implement the policies for the users of the computer system and network.
• Regularly manage backup process for Server and Client data.
• Installing open source application, search, analyze and develop new application for users.

Environment: Centos 5.7/6, Red Hat Linux 5.7/6, Ubuntu 10.04/10.10/11.10, Fedora 17, Red Hat Linux systems, HPC environment, Maven.

Confidential

Linux Admin

Responsibilities:

• Installation of patches and packages using RPM and YUM in Red Hat Linux.
• Created and modified application related objects, created Profiles, users, roles and maintained system security.
• Responsible for setting up cron jobs scripts on production servers.
• Installed and configured SAMBA server for Windows and Linux connectivity.
• Monitored System Activities like CPU, Memory, Disk and Swap space usage to avoid any performance issues.
• Responsible for writing/modifying scripts using sh, ksh, and bash for day-to-day administration.
• Modified Kernel parameters to improve the server performance in Linux.
• Creation of Logical volumes Manager (LVM) for Linux operating systems.
• Installed and configured Apache Tomcat web server.
• Involved in design, configuration, installation, implementation, management, maintain and support for the Corporate Linux servers RHEL 4x, 5.x, SLES 9, CENTOS 5.x.
• Coordinating with 24 x 7 on-call support personnel in debugging.
• Maintained proper documentation of all the activities carried out during the project
• Worked with DBA team for database performance issues, network related issues on Linux Servers.
• Maintained proper documentation of all the activities carried out during the project.
• Created and modified users and groups with SUDO permission.
• Installed and configured VNC server/client.
• Coordinating users for any server activities which may involve major changes on software or any hardware related issues.

Environment: Red Hat Linux (RHEL 4/5), Logical Volume Manager, Global File System, Red Hat Cluster Servers, Oracle, MySQL, DNS, NIS, NFS, Apache, Tomcat, Samba, VNC.