SUMMARY

• Around 8 years of working experience as System Administration on Various platforms like Red Hat Linux, Ubuntu, Solaris, IBM AIX, CentOS, SUSE, Oracle Enterprise Linux, Unix and Windows environments.
• Experience with the Installing, upgrading, configuration and maintenance of RHEL, Ubuntu, CentOS and Debian using Kickstart Servers.
• Experience in Server build using Jumpstart on multiple servers. Worked on migration of Unix servers to Linux servers.
• Worked on Data center operation and maintenance across Unix and Linux platforms.
• Performed new disks formatting, partitioning, disk space allocation, Patching, system performance, system tuning, and crash recovery issues.
• Installation of patches, Security fixes, packages on Linux and Unix Servers.
• Strong experience on Webservers such as Netscape Enterprise Server and Apache Server. And familiar with Java application servers like Tomcat and WebLogic.
• Administering and Performance Tuning of WebSphere Application Server.
• Good Knowledge on shell scripting languages like Korn shell, Bash shell and Perl shell.
• Experience in Installing and troubleshooting of NIS, DNS, DHCP, NFS, LDAP, FTP, SAMBA server on various platforms and Security trouble shooting skills.
• Patch Management, Package Installation/Upgrades and Kernel upgrades.
• Participate in installing and configuring of Linux based Oracle 11g, MongoDB, MySQL, and SQL server products.
• Experience in Managing Oracle 10g/11g Databases and Grid control including Backups.
• Experienced in supporting database system, Exadata & oracle RAC on Red Hat Linux.
• Worked with Log monitoring solutions like Splunk, Nagios and Zabbix.
• Migrating the projects from ANT to Maven and upgrading the build tools.
• Configured Cloud computing platform and infrastructure created by Microsoft Azure for building,
• Documentation in Confluence, Jira to track time on stories for different scrum teams.
• Extensive experience with Continuous Integration tools like Jenkins and Hudson, good working knowledge on source repository management tools like GIT and SVN.
• Experienced in writing python, ruby, shell scripts for automation of systems, applications, and backups.
• Experience with CloudStack & DevStack server management.
• Experience with configuring Docker. Working knowledge in building and deploying applications in Docker.
• Expertise in OpenStack based cloud platforms with Bash scripting skills.
• Strong Hands on development and configuration experience with software provision tools like Chef, SALT, Ansible and Puppet.
• Highly motivated and committed DevOps Engineer experienced in Automating, Configuring instances on AWS.
• Experience working with AWS Cloud computing and involved in creating AWS instances and deployed Linux and Ubuntu on AWS environment.
• Excellent verbal and written communication skills and strong analytical and problem - solving ability.
• Configured and managed Apache web server instances in Dev, QA and Production environments.
• Good Understanding on each phase of SDLC lifecycle and Network Protocols.
• Experience of working in Data centers with 24X7 Production and On-Call Environments.
• Experience in networking concepts like DHCP, VPN, TCP/IP, IP Addressing, Networking Technologies and WLAN.
• Hands on experience in troubleshooting various networking, hardware & Linux services issues.
• Performs system security including user access security and authentication, files and directory permissions and network security.
• Hands on experience on Installation, automation and deployment of OpenStack.
• Migrating and maintaining build and test environments into the Cloud Infrastructure.
• Working on Amazon EC2 cloud computing Ubuntu Linux, Tomcat application servers.
• Knowledge in configuration on code commit and code deploy.
• Created EC2 Instances on AWS. Experienced building virtual machines in VMware environment.
• Experienced in implementing Puppet and Chef to deploy code on servers.
• Experience in Python, shell and Ruby scripting.
• Setup up and maintenance of automated environment using Chef Recipes and cookbooks within AWS environment.

TECHNICAL SKILLS

Operating systems: Red Hat Enterprise Linux 4/5/6/7, CentOS 5/6/7, Ubuntu, SUSE, Windows 2003, 2008, 2012 Servers, HP-UX, Oracle Enterprise Linux, IBM AIX, Sun Solaris 8/9/10.

Databases: Oracle 9i/10g/11g, MYSQL Server 2008/2012, MongoDB, Microsoft SQL server.

Hardware: HP ProLiant, Blade servers, Dell PowerEdge, sun enterprise servers, sun fire, AIX IBM, Cisco blade servers, Pseries, Backup Devices, Jukebox.

Languages: Ruby, Python, SQL, Java Script, HTML, Shell scripting, OOP, C and C++.

Web & Application Servers: Apache Tomcat, Dockers, DNS, WebLogic, Jboss, Glass fish, Http server, Apache 2.0/2.2/2.4, WebSphere, Hudson and Jenkins.

Virtualization: VMware, Virtual Box, XEN, ESXI, VSphere 4 & 5 Client.

Network Protocols: TCP/IP, NIS, SSH, UDP/IP, DHCP, DNS, NFS, VLAN, CISCO Switches and Routers.

Monitoring tools: Nagios, Zabbix, Cacti and Splunk.

Security: SELinux, open SSH, and IP tables.

Automation tools: Chef, Puppet, SALT and Ansible.

Other Tools: AWS, JIRA, OpenStack, Azure, Maven, ANT, Wireshark, HP quality center, Oracle Enterprise Manager(OEM), Netcool, NetBackup, Cisco VPN, TSM, WINSCP, HAProxy, LDAP, TOAD, and Putty.

PROFESSIONAL EXPERIENCE

Sr. Linux System Administrator/ DevOps Engineer

Confidential, Cary, NC

Responsibilities:

• As Linux administrator primary responsibility includes building of new servers which includes rack mounting, configuring of various OS and securing of OS, installing & configuring.
• Installation, Maintenance, Administration and troubleshooting of Red Hat Enterprise Linux 6/7 and Ubuntu on both standalone and virtual environments.
• Installed packages, configured file systems and applied patches as per specifications of client.
• Installed and configured DHCP, DNS, mail and file servers on Red Hat Enterprise Linux servers.
• Responsible in installing and managing NFS, FTP and Samba for file sharing.
• Day to day production support including checking daily logs, backup/recovery procedures, disaster recovery periodic maintenance and off-hours problem support.
• Installed & configured disk management using Logical Volume Manager (LVM) for Linux systems.
• Monitored System Activities like CPU, Memory, Disk and Swap space usage to avoid any performance issues.
• Updates and upgrades Red Hat Enterprise Linux servers with yum and rpm repositories.
• Associated with DBAs for installation of Oracle Database 11g on Linux servers and for tuning, backup and restore. Configured Oracle RAC Cluster on servers.
• Deployed latest patches for Linux and Application servers, and performed Red Hat Linux Kernel Tuning. Configuring Web servers like Apache and Tomcat on demand.
• Creation of SAN File System on Red Hat Linux using multipath configuration. And managed TCP/IP packets and DHCP servers. Used Maven build tool to build the application.
• Created and tested applications in Isolated cloud resources using Virtual Private Cloud (AWS VPC).
• Deployed Java applications using CI/CD tools like Jenkins, Puppet in standalone and clustered environments.
• Installed NoSQL databases MongoDB and Cassandra.
• Worked on Orion monitoring and JIRA ticketing systems.
• Develop scripts and customization to OpenStack software and components to augment bank services and environments.
• Worked on Docker and created virtual instances with Docker.
• Configured OpenStack Nodes and Test Playbooks on AWS instances using Python and also used Ruby for scripting.
• Configured SSH, SMTP, Build Tools, and Source Control repositories in Jenkins and Installed multiple plugins to Jenkins.
• Worked on integrating GIT into the continuous Integration (CI) environment along with Jenkins.
• Monitoring system performance, Server load and bandwidth issues using Nagios and Zabbix.
• Responsible in creating alarms and notifications for EC2 instances using Cloud Watch.
• Involved in Amazon EC2 setting up instances, virtual private cloud (VPCs), and security groups.
• Involved in automation by using Puppet master running on RHEL servers. Used these scripts to replicate production build environments.
• Created Hiera environment structures for support of CI/CD automation for puppet modules.
• Worked on creating and customizing several cookbooks from GITHUB, OCI and used for Installing, configuring WebLogic and several OS configurations.
• Developed Perl and shell scripts for automation of the build and release process.
• Integrating with python to automate the deployment for java based applications.

Environment: Red Hat Linux 6/7, Ubuntu 12.04/14.04, CentOS, SAN(Netapp), NFS, VMWare, DELL PowerEdge, Tivoli Storage Management, vsphere, WebSphere application, JIRA, GIT, Win 2008/2012, NoSQL, Apache, Tomcat, Jboss, Dell Pseries, Amazon Web Services (AWS), Puppet, HP Quality center, Red hat Satellite Server, PostgreSQL, Oracle 11g, Oracle Enterprise Linux, Jenkins, Dockers.

Sr. LINUX Administrator/ DevOps Engineer

Confidential, Secaucus, NJ

Responsibilities:

• Worked on variety of Linux platforms includes Red Hat Linux, Solaris with installation, configuring and maintenance of applications on this environment.
• Installing, configuring and maintaining the VMware and Virtual servers.
• Worked with Red Hat Satellite server which is used to push changes across various servers simultaneously. Implemented kick start installation on multiple servers.
• Troubleshooting, Working and Maintaining VERITAS Cluster in SUSE & Red hat Linux Environment.
• Migrated to Red hat satellite server 6 version.
• Configuring and implementing DHCP, DNS, SAMBA installation and configuration on different. Platforms in heterogeneous Network environment.
• Implemented Nagios to monitor and set up thresholds on the various system parameters.
• Installed and configured JBoss application server.
• Automated the deployment and server process by creating the scripts using WebLogic Scripting Tool (WLST).
• Installation, Configuration and Troubleshooting of Tivoli Storage Manager (TSM).
• Installation and configuration of database systems e.g. MySQL, Oracle11g, SQL in RHEL, Centos environment. Maintained Volumes and File systems for Oracle, MySQL databases.
• Supported servers with Oracle 10g/11g and MySQL Database, coordinated with DBA's for kernel tuning and performance monitoring.
• Automated Weekly releases with ANT/Maven scripting for Compiling Java Code, Debugging and Placing Builds into Maven Repository.
• Windows Azure Multi-Factor Authentication Server installation, configuration and management.
• Worked with chef, creating cookbooks from scratch and coding in chef.
• Used Logical Volume Manager to create disk groups, volumes, volume groups, and RAID’s and used tools for backup and recovery.
• Worked on deploying hosted Chef server on AWS and migrated applications to cloud.
• Installed Tomcat and Apache Web Servers on Red Hat Production Servers.
• Worked on AWS OpsWork, AWS Lambda, AWS CloudFormation and cloud foundry.
• Setting up private networks and sub-networks using Virtual Private Cloud (VPC) and creating security groups to associate with the networks.
• Troubleshoot deployment and network issues with OpenStack hosts and VMs.
• Worked with SVN and GIT for version control to manage chef code and revisions in a repository.
• Wrote ruby script to automate daily repetitive activities.
• Setup Maven Remote Internal Secure Repository with access restricted to team members.
• Installation of OAS (Oracle Application Server) on Solaris and its configuration with oracle database.
• Automation of test cases is done by integrating the HP QC plug-in with Jenkins Server.
• Implemented automation tools such as Splunk, Chef and AWS OpsWorks.
• Written code to run tasks using shell scripting and Perl programming.
• Utilized CloudWatch to monitor resources such as EC2, CPU memory, Amazon RDS DB services. Used EBS volumes to set alarms for notification and to monitor logs for a better understanding and operation of the systems.
• Worked using cloud providers and API's for Amazon (AWS) with Cloud Sigma.
• Maintained the servers for different data centers using Amazon Web Services (AWS).

Environment: Red hat Linux 6, Solaris, Veritas NetBackup, Veritas Volume Manager, Samba, CentOS, Azure, HP ProLiant, servers, Oracle 11g RAC, Chef, VMware Virtual Client 3.5, Oracle Server, MYSQL, Splunk, Web server Apache, Jenkins, Azure, Application server JBoss, DHCP, Maven, EBS volumes, Amazon Web Services, SunFire, GIT, PostgreSQL, vSphere, Management tool and satellite server.

LINUX/UNIX Administrator

Confidential, Nashville, TN

Responsibilities:

• Installation, Maintenance, Administration and troubleshooting of Linux, Sun Solaris, AIX, HP-UX systems.
• Used VMware to move VM's from One Datacenter to another datacenter.
• Installed, configured, upgrade and administration of IBM Pseries on various levels of AIX operating system utilizing environment.
• Provide support to Account Managers, Unix and Windows technicians, and other departments.
• Responding, tracking systems incident on all Unix systems that perform system patch deployments and hardware maintenance along with upgrades and patches.
• Supported the backup environments running VERITAS Net Backup 6.5.
• Activities include user administration, startup, shutdown scripts and crontab, file system.
• Configuring distributed file systems and administering NFS server and NFS clients and editing auto-mounting mapping as per system / user requirements.
• Worked Informatica and ETL application servers.
• Responsible for Continuous Integration(CI) and Continuous Delivery(CD) process implementation from Dev to Eval, and then from Eval to production system.
• Responsible for Monitoring system Access and Monitoring servers by using Nagios.
• Coordinating with application teams to schedule AIX maintenance on QA/DEV and production.
• Automated Nagios alerts and email notifications using python script and executed them through Chef.
• Administration and auditing the SUN servers and installation of the patches on production and development systems.
• Implemented SQL server management studio for configuring, managing and administering the SQL Cluster.
• Custom build of Windows 2008 servers which includes adding users, SAN, network configuration, installing application related packages, managing services.
• Installed and Configured both Kickstart and Jumpstart Servers for the Infrastructure Server Deployments.
• Worked accordingly with organization defined policies on DNS, firewall, load balancer, networking, middleware, web application and security.
• Supporting web development and database teams for day to day operations.
• Managed Users for Solaris and Linux Servers and assigned rights to access network resources.
• Interactively working with all cross-functional groups including Engineering, QA and Services Teams.
• Planning and implemented Disaster recovery sites from the scratch.
• Regularly manage backup process for Server and Client data.
• Provided production support in an on call rotation in a 24/7 environment.

Environment: RHEL 5/6, AIX 6.1/7.1, Unix, IBM Power 5/6/7 and HP servers, IBM DS8300, IBM DS8600, IBM TSM, IBM LPARS, Sun Solaris, Virtual machines, VMware, NFS, SVM, SQL server, Perl Scripting, LAN, LDAP, TCP/IP, CITRIX and mobile applications, ETL applications, WebSphere, Kick start, Active Directory.

Linux System Administrator

Confidential, Santa Ana, CA

Responsibilities:

• Installation and Configuration of Red hat, CentOS, Solaris 8, 9 servers.
• Worked on setting up new users, involving security at user and network level.
• Administer and maintain all servers running Linux/Windows to maintain a 24x7 uptime environment.
• Installed and configured Apache / Tomcat web server.
• Worked on Disk management and implementation.
• Worked on Updating/patching Linux Servers with latest rpm packages.
• Installed and configured DNS.
• Configured SAMBA to get access of Linux shared resources from Windows.
• Worked with open source system network firewall securities like IPTables.
• Installing and Configuring Oracle and SQL Linux/Windows platforms.
• Added Service Groups and resources based on the requirement with appropriate dependencies in Active/passive and Active/Active Cluster Server configuration.
• Implementation of Veritas Cluster Server for Oracle 10g Database Environment.
• Providing administration and troubleshooting user related problems.
• Using Query commands and Activity logs to check for problems and activities done.
• Restoration of Data for Users in the event of requirement or Systems crash. And user License management of The TSM Server.
• Administering NFS Mounts.
• Installed and configured SAMBA server for Windows server and Linux connectivity.
• Created various reports for management team. And worked with various vendors and support teams.
• Responsible for the technical procedures, instructional materials, user guides, troubleshooting material and standard operational procedures.
• Report to Program Management for quality control and process improvements.
• Troubleshot problems pertaining to network hardware and software remotely and locally.
• Day-Day application support on production and technical documentation for critical prod issues, on call pager support 24/7 environment.
• Monitored trouble ticket queue to attend user and system calls.
• Perform performance monitoring and report activity log to senior management.

Environment: Red hat Linux 4/5, Centos, Solaris 8/9, DNS, SAMBA, NFS, TSM, Oracle 10g, rpm packages, Dell PowerEdge Servers, Windows servers 2003 and 2008, Apache, Tomcat, VMware.

Jr Unix Administrator

Confidential

Responsibilities:

• Full cycle system and Application server administration in Production, Test, Stage and Development environments.
• System performance for hourly basis or daily basis.
• Created and modified application related objects, created Profiles, users, roles and maintained system security.
• Performing upgrades of OS and applications.
• Performed system controller fail back and failover.
• Monitored System Activities like CPU, Memory, Disk and Swap space usage to avoid any performance issues.
• Maintained and monitored all of company's servers' operating system and application patch level, memory usage, user activities on every day basis.
• Configured the snap mirror between the filer and between the volumes on filer as schedule Snap Mirror backup.
• Log management like monitoring and cleaning the old log files.
• Coordinating with 24 x 7 on-call support personnel in debugging.
• Responsible to work on OS and application related IRs and MRs and closed the tickets in time to meet SLAs.
• 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.
• Initiated and Oversee the Change windows and Maintenance windows activities.
• Coordinating users for any server activities which may involve major changes on software or any hardware related issues.