SUMMARY:

• 7+ years of experience specialized in Linux System Administration working on Red Hat Linux, Build/Release management, Amazon Web Services and Devops.
• 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.
• Extensive experience in Linux/Unix system Administration, System Builds, Server Builds, Installations, Upgrades, Patches, Tuning, version control, Migration, Trouble shooting on RHEL 4.x/5.x.
• Experienced in implementing Splunk, Puppet, Chef and DevOps.
• Ability to manage SCM processes which include compiling, packaging, deploying and application configurations.
• Extensively worked with Version Control Systems SVN (Subversion), GIT, Clearcase, Perforce, and IBM Rational Team Concert.
• Extensively worked with build tools like MAVEN and ANT for the building of deployable artifacts(war & ear) from source code.
• Experience developing and implementing continuous deployment code; experience with CI/CD pipelines and DevOps methodologies.
• Experienced in implementing and maintaining an Apache Tomcat /MySQL/PHP, LDAP, LAMP web service environment.
• Experience in setting up the Chef workstation, Chef repo as well as Chef nodes.
• Strong experience in setting up the entire Chef Infrastructure from scratch.
• 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.
• Good knowledge and experience in Openstack development and Virtualization concepts
• Experience in Neutron Plugin development for L3 as a service on Openstack
• Built solution accelerator for appliance based FWaaS on Openstack / KVM.
• Hands on experience on RHEL 7 and OSP 5
• Experience in C,C++, Python, TCL,Linux
• Hands on experience on hypervisors VMware ESXi5.x, KVM
• Experience on Vsphere Client and Vcenter
• Experience with Git and Gerrit
• Experienced in building and maintaining Docker infrastructure for SOA applications in agile environment.
• Experience in monitoring the servers using Nagios and Cacti.
• Administered and Implemented CI tools Hudson and Jenkins for automated builds.
• Setting up the automatic build and deployment automation for Java base project by using JENKINS and Maven.
• Knowledge on Linux Kernel and Device drivers.
• Good Knowledge in IEEE802.11 a/b/g/n standards.
• Experience in configuration of NIS, NIS+, DNS, DHCP, NFS, LDAP, SAMBA, SQUID, postfix, send mail, FTP, remote access, security management and Security trouble shooting skills.
• Worked on Data-Center operation and migration across Unix and Linux platforms
• Experience in Creation and managing user accounts, security, rights, disk space and process monitoring in Solaris and Red Hat Linux.
• Experience using cloud providers and API’s for Amazon (AWS) with CloudSigma(EU).
• Experienced on Red Hat Satellite Server with custom repositories to provide a stable management solution for the 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 and at.
• 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.
• Independent problem solving and a good team player with strong interpersonal and communication skills.
• Ability to work independently as well as a team member.
• Experienced in Trouble shooting and Back and Recovery.

TECHNICAL SKILLS:

Operating Systems: RHEL 3/4/5,6, Solaris 10/9/8, HP-UX 11.0, 11.11, IBM AIX (4.3/5.x), HPUX11i V1, V2 & V3,VMware ESX, Windows 2003, 2008, 2012,SLES 8,9,10&11, Linux (RedHat, CENTOS) and NT

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

Web/ Application Server: Tomcat, APACHE 2.x, 3.x, Web Logic (8/9/10) & Web Sphere 4.0/5.0, DB2, Oracle,Collibra,K2.

Programming Languages: C,C++, SQL, HTML, PHP, XML, Bash, Perl and Shell Programming, JSP,java,J2ee Python and Ruby, Maven

Third Party Software: VERITAS Volume Manager, VERITAS Cluster Service (VCS), HP Service Guard, Sun Cluster, EMC Storage, RAID Technologies, SSL, Bitbucket, Artifacory, Splunk,Chef,Puppet, GitHub, flask, django,Jenkins, Bamboo and Nagios, DevOps,Tomcat, Nexus and Artifactory

Other tools: VMware VSphere, XEN, ESX/ESXi, OpenStack, VCenter Server, Ansible, salt and Datacenter, KVM,AWS, AWS elastic beanstalk

PROFESSIONAL EXPERIENCE:

Confidential, TX

Sr. DevOps Engineer /Sr. Linux Administrator

Responsibilities:

• Building and supporting environments consisting Testing, Contingency, Production and Disaster Recovery servers.
• Worked on Server installations and new OS configurations and bootstrapping few nodes with Chef.
• Wrote scripts using python, pearl, bash for automation and reliability of cloud operations.
• Wrote Chef cookbooks and tested them using Vagrant, Git and TestKitchen.
• Involved and worked on numerous servers migration from puppet to Chef.
• Implemented puppet, Nagios, Splunk, Chef and DevOps tools.
• Performed OS provisioning using kickstart through BMC Blade Logic.
• Performed patching of RHEL using yum, up2date and BladeLogic.
• Performed Continuous Integration using Jenkins.
• Used JIRA as ticket tracking and work flow tool.
• Installed, upgrade, Integrate and administer Atlassian tools like JIRA and Confluence.
• 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.
• Implemented cloud services using Amazon Web Services(AWS- elastic beanstalk) .
• Worked actively with ORE team to ensure reliability of cloud services like Iaas, PaaS and SaaS(AWS).
• Create, extend, reduce and administration of Logical Volume Manager (LVM) in RHEL environment.
• Installed and configured software using SaltSatck
• Performed remote execution using SaltStack.
• 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 using HIPPA,PCI, SR to ensure all goes well and provided support till servers go in to production environment.
• 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.
• Worked on Continuous Deployment using Jenkins with Maven scripting.
• Worked on KVM(Virtualization software) for emulation of real CP binaries
• Setup and testing in VMWare environment.
• Development of the neutron service plugin to spin of CSR in openstack via PNSC.
• Simulation of MAUB board in Linux with C/C++
• Performance tuning of Virtual Memory, CPU, system usage in Linux and Solaris servers.
• Performed Disaster Recovery in RHEL servers which consists of LVM based FS and Red Hat Clustering.
• Performed combines multi-node software deployment, ad hoc task execution, and configuration management using Ansible
• 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.
• Preparing prototypes or proof of concept support for tools migration to cloud (Openstack)

Environment: Environment: Red Hat Linux 5.X, HP & Dell Servers, Oracle/DB2, VMWare ESX 4.x, KVM, Autosys, Jenkins, VMware,JIRA, VSphere, SaltSatck, Open Source ESB, BMC BladeLogic, AWS, AWS elastic beanstalk.

DevOps Engineer / Linux Administrator

Responsibilities:

• Works with Symantec and BSC team to setup the Symantec O3 IDLINK Open VPN Servers.
• Implemented cloud services using Amazon Web Services(AWS) .
• Implemented Bash, Perl, Python scripting.
• Worked on creating and managing the nodes via Chef.
• Implemented automations tools Chef, Puppet, Splunk, DevOps.
• Automated the cloud deployments using Chef and AWS cloud formation templates.
• Implemented Chef recipes for deployment on internal data center servers and created deployment directly into Amazon EC2 instances.
• Debugging Chef recipes and their execution trying to pull logs into Splunk and monitor deployments.
• Automated provisioning of cloud infrastructure with Chef.
• Migrated to Red hat satellite server 6 version.
• Worked exclusively on VMware virtual environment.
• Worked on Continuous Deployment using Jenkins with Maven scripting.
• Performed Continuous Integration using Jenkins.
• Worked on creating and managing the nodes via Chef.
• Experience in using VMware vMotion to move VM’s from One Datacenter to another datacenter.
• Installed and configured softwere using SaltSatck
• Performed remote execution using SaltStack.
• Updating patches to keep servers updated against bugs present in the operating system using Red Hat Satellite Server, yum, etc.
• Build servers using Kick Start, Red Hat Satellite Server, and VSphere Client.
• Worked on variety of Linux platforms Red Hat Linux, Solaris, Salt which includes installation, configuring and maintenance of applications on this environment.
• Involved in installation and configuration of various Third party software onto servers.
• 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.
• Worked on JIRA tool to decide workflow of software.
• Performed combines multi-node software deployment, ad hoc task execution, and configuration management using Ansible.
• 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.
• Experience with supporting and maintaining F5 BIGF IP load balancers.
• Involved in building automation scripts on OpenStack.
• Worked on OpenStack Compute, Block storage components of OpenStack.
• Used Cloudify to automate the monitoring, integration tasks.
• 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.
• Automating many day to day tasks through Bash scripting.

Environment: Red Hat Enterprise Linux 4.x/5.x/6.1, Ansible, Solaris 8/ 9/10, Tivoli Storage Manager, VMware ESX5, Tivoli Net backup, JIRA, AWS, AWS elastic beanstalk Web sphere. Windows 2012 servers, Open Stack, IIS 7.0 & 7.5.

Sr. Linux Administrator / Devops Developer

Responsibilities:

• Worked Primarily on RHEL 4/5, HPUX, and Solaris Operating Systems.
• Text processing, also in network programming with Perl Scripting.
• Involved in migration activities using Red Hat LVM, Solaris LVM, Veritas and EMC Open Migrator.
• Writing Shell and Perl Scripting for automation of job. configuring and managing computers using Ansible.
• Tuning the kernel parameters based on the application/database requirement
• Implemented automations tools Puppet, Splunk, Devops.
• Worked on Continuous Deployment using Jenkins with Maven scripting.
• Performed Continuous Integration using Jenkins.
• Installation of OAS (Oracle Application Server) on Solaris 9 and its configuration with oracle database.
• Used Veritas File system (VxFS) and Veritas Volume Manager (VxVM) to configure RAID 1 and RAID 5 Storage Systems on Sun Solaris.
• File system tuning, growing, and shrinking with Veritas File system 3.5/4.x.
• Manage user accounts for the team access for Red Hat Satellite Server.
• Build channels and pull the packages from master Red Hat Satellite Server.
• Troubleshooting hardware, software and configuration problems for various protocols and topologies.
• Installed and configured GFS cluster for holding databases.
• Configured open LDAP Red Hat Linux systems.
• Setup optimal RAID levels (fault tolerance) for protected data storage in NAS environments.
• Install and configure DHCP, DNS (BIND, MS), web (Apache, IIS), mail (SMTP IMAP and POP3) and file servers.
• Expertise in troubleshooting the systems and managing LDAP, DNS, DHCP and NIS.
• Worked with different Active directory databases like Microsoft AD, Tivoli Directory server with LDAP .
• Worked on making DNS entries to establish connection from server to DB2 database.
• Performed patching, backups on multiple environments of Solaris, Linux and VMware.
• Involved in preparation of functional and system specifications. Estimated storage requirements for applications.

Environment: Red Hat Linux (RHEL 3/4/5), Solaris, Logical Volume Manager, Sun & Veritas Cluster Server, Global File System, Ansible, Red Hat Cluster Servers.

LINUX System Admin / DevOps Designeer

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.
• Implemented automations tools DevOps
• Installing and configuring Red Hat Linux locally or over the network-kick start- (nfs, ftp, http).
• Experience in building binaries using Maven & Xcode.
• Worked on Continuous Deployment using Jenkins with Maven scripting.
• Performed Continuous Integration using Jenkins.
• 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.

Linux Administrator

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 (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.

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