PROFESSIONAL SUMMARY:

• Experience of 8+yrs working on Red Hat Enterprise Linux, Fedora Linux, Debian Linux, Sun Solaris, Ubuntu Linux, SUSE Linux.
• Worked as Linux/Unix system administrator on RedhatEL 5.x, 6.x, CentOS, SUSE, Solaris and VMware ESX environment.
• Working experience in implementing and administering VM's using VMware ESX 4.x, 5.xand VCenter.
• Troubleshoot of server virtualization products like KVM, XEN, VMware, and Virtual Box.
• Planning, Installation and configuration of RHEL 5.x/6.x along with installation and configuration of Kickstart.
• Experienced in Kickstart, Jumpstart, Cobbler Infrastructure setup and Installation Methods.
• Proficient in Linux utilities like KICKSTART, SSH, FTP, AUTOFS, Quota Management, wrappers, User Management, Process Management, Memory Management, and Text processing tools, Log Management, Package Management, Disk Management and Swap Partition/Files Management.
• Accomplished Disk Mirrors and RAID 0, 1 and 5 levels on several UNIX/LINUX servers.
• Performed kernel tuning based on the applications to be installed and the number of users.
• Excellent concepts of LVM and SVM creating new file systems, increasing and decreasing file systems.
• Mounting file systems, un - mounting file systems and troubleshooting Disk space issues and experienced in Deploying RHEL 5/6in an enterprise setting.
• Experienced on Redhat Satellite Server with custom repositories to provide a stable management solution for the Linux environment.
• Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring File System servers with Confidential Auto mount clients.
• Troubleshooting skills with network protocols such as DNS, TCP/IP, SMTP, and SNMP and worked SAN and NAS technologies.
• Experience with Docker .
• Performed Java/J2EE development using Struts.
• Responsible in deploying the application WARs, EARs in Weblogic application servers and troubleshoot any deployment issue.
• Coordinated with SAN Team for storage allocation and Disk Dynamic Multi-pathing (DMP).
• Knowledge in load balancing and setting up load balancer and firewall rules in and enterprise environment.
• Experience working with version control tools like SVN and GIT .
• Experience working with build automation tools like Jenkins, Bamboo and Junit.
• Experience in using Tomcat and Apache web servers for deployments and for hosting tools.
• Experience in using Nexus and Artifactory Repository Managers for Maven builds.
• Highly experienced in installing, configuring, and implementing Virtualization Environment using VMware, Oracle virtual box, Windows Active Directory and LDAP.
• Experience in implementation and maintenance of Amazon Web Services (AWS).
• Installation of Database servers and user’s management such as Oracle, MYSQL, SQL Server, Disk space and File system management using Logical Volume Manager, ZFS and Monitor Disk space and space as needed in LVM.
• Worked on Confidential ( Confidential ).
• Experience with ticketing tools such as Remedy and Service Now.
• Experience in bug tracking tools like JIRA, HP Quality Center and IBM clear Quest.
• Experience in writing shell scripts to automate the administrative tasks and management using cron jobs.
• Good working experience in basic UNIX Scripts using bash.
• Experience with .NET and Java based applications.
• Installation of Operating Systems, Packages and Patches, System Security, backup recovery, and
• Performance tuning. Knowledge of system analysis, troubleshooting, and performance tuning system operating Systems.
• Experienced in implementing the workload Management (WLM) using cloning and clustering.
• Extensive experience working with AWS provided Solutions like EC2, ELB, VPC , Route 53 , RDS , S3 , IAM , and Cloud Watch .
• Written KB article in confluence.
• knowledge of Open stack services such as Nova, Glance, Cinder, and Neutron.
• Knowledge in implementation and configuration of Open Stack cloud.
• Contributed to the open source cloud project Open Stack
• Planning and setup of Disaster Recovery Servers.
• Worked with Vendors on system issues and bugs for its resolution.
• Provide and reviewed technical support for technical documentation of UNIX/LINUX servers.
• Willing to work on flexible hours for production, backup and on-call support for 24/7 environments.
• Self-motivated, committed to work, detail oriented, and excellent problem solving skills with leadership Qualities.
• Knowledge on Azure .

TECHNICAL SKILLS:

Operating Systems: RHEL 4.0/5.0/6.0, Solaris 9/10, Centos 4.0/5.0/6.0, VMware, ESX/ESsssXi 4.x & 5.x, OEL 5/6, Windows XP/2003/2007.

Networking: LDAP, DNS, NIS, NFS, FTP, DHCP, SSH.

Backup/Monitoring Tools: TOP,SAR,tcpdump,Wireshark,CronJobs, SendMail, Postfix, Nagios, sensu.

Version control Tools: Svn,Git .

Automation Tools: Chef and puppet.

Cluster: VERITAS Cluster Server, RHN satellite cluster .

Web/Application Server: Tomcat, Apache, WebSphere, WebLogic, JBoss, AWS, Rackspace.

Scripting Languages: Kshell, bash, bourne and python.

Database: Oracle 9i/10g, oracle 11g RAC, MySQL, SQL SERVER 2007 .

Hardware: Dell-2950, HP Proliant, HP-460C Blade, IBM F-series P-series RS6000, SUN M5000 & T2000 servers with SUN ZFS.

Virtualization: VMware, XEN, KVM, Vsphere client.

PROFESSIONAL EXPERIENCE:

Confidential, Danbury, CT

Dev-ops Engineer/ Cloud Engineer

Responsibilities:

• Planning infrastructure roadmap and pipeline at project initiation stage.
• Developing configuration management and tools Opscode Chef and Python.
• Developing AWS cloud formation templates and setting up auto scaling for Ec2 instances.
• Install, configure and maintain servers for Web applications like ASP, ASP.NET, and HTML on IIS 5.0/6.0/7.0/8.0/8.5 on Windows Servers 2000/2003/2008/2012.
• Setting up and Monitored transactional replication, Database mirroring on Production, servers
• Migrated code from mercurial to GIT.
• Respin the instance after updating the changes in template .
• Worked on Load Balancers .
• Written scripts for deploying different products into environment.
• Migrated some products from our VMs to Cloud.

Confidential, Glendale, CA

Dev-ops Engineer

Responsibilities:

• Created servers in different environment in datacenter and automated that server by using chef.
• Written cookbooks to replicate the services to newly build servers.
• Written KB article on Chef in Confluence.
• Automating infrastructure in AWS with Chef .
• Design EC2 instance architecture to meet high availability application architecture and security parameters.
• Focus on continuous integration and deployment, promoting Enterprise Solutions to target environments.
• Configuring and Networking of Virtual Private Cloud (VPC).
• Worked on Docker and created virtual instances with Docker .
• Written Cloud formation templates and deployed AWS resources using it.
• Creating S3 buckets and also managing policies for S3 buckets and Utilized S3 bucket and Glacier for storage and backup on AWS.
• Creating Cloudwatch alerts for instances and using them in Auto scaling launch configuration.
• Bootstrapping instances using Chef and integrating with auto scaling.
• Manage the configurations of Multiple servers using Chef .
• Used to deploy .NET based application on multiple servers.
• Written multiple manifests and also customized facts for efficient management of the Chef clients.
• Written scripts in Python to automate log rotation of multiple logs from web servers.
• Primary responsibilities include Build and Deployment of the java applications onto different environments like Dev, QA, UAT and Prod.
• Implemented and maintained the monitoring and alerting of production and corporate servers/storage using AWS Cloud watch.
• Managed Ubuntu Linux and Windows virtual servers (Rack space and AWS EC2) with Chef using Git.
• Development of modules to connect Open Stack dashboard with public cloud such as AWS and Rack space (Cloud Bursting).
• Used GIT version control to push the modules to the Git .
• Set up and managed Jenkins build farm of mixed Linux, Mac OS, and Windows slaves.
• Worked with a complex environment on Red Hat Linux and Windows Servers while ensuring that these systems adhere to organizational standards and policies.
• Worked on disk space issues in different servers .
• Monitored infrastructure on monitoring tools sensu.
• Strong in building Object Oriented applications using Java, writing Shell Scripts on UNIX.
• Generated Perl & UNIX scripts for build activities in QA, Staging and Production environments.
• Used tracking tool JIRA and also triaged the issues and maintained bugs using JIRA tool.
• Manage the integration of new software projects and products into the build environment.
• Work with product development to resolve build-related issues in all projects.
• Involved in scrum ceremonies (stand-up, grooming, planning, demo/review and retrospective) with the teams to ensure successful project forecasting and realistic commitments .
• Involved in scrum meetings, product backlog and other scrum activities and artifacts in collaboration with the team .
• Migrating the data to respective DEV and QA Oracle database before doing code roll-out.
• Handled several projects go-live deployment/upgrade activities.
• Provided on-call support for production issues.
• Troubleshooting various production related outages.

Confidential, Philadelphia, PA

LINUX System Administrator

Responsibilities:

• Experience administering, installing, configuring and maintenance of Linux.
• Patching of RHEL EMC Power path Upgrade for VMAX migration.
• Creation of VMs, cloning and migrations of the VMs on VMware v Sphere .
• Experience installing, upgrading and configuring Red Hat Linux using Kick start Servers and Interactive Installation.
• Responsible for creating and managing user accounts, security, rights, disk space and process monitoring in Solaris, Cent OS 5.x/6.x and Red hat Linux.
• Configuring DNS, NFS, FTP, remote access, and security management.
• Installing, upgrading and managing packages via RPM and YUM package management .
• Installed Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux Systems.
• Installing, configuring and supporting Apache on Linux production servers.
• Managing Patches configuration, version control, service pack and reviews connectivity issues regarding Security problem.
• Managing systems routine backup, scheduling jobs and enabling cron jobs.
• Working with Database administrators to tune kernel for Oracle installations.
• Applied patches every quarter regularly to meet audit requirements using Oracle Ops Center, Red Hat Satellite server, Up2Date, YUM, RPM tools.
• Integration tools configuration (Jenkins) on Red hat distributions .
• Worked on all facets of HP-UX Systems Admin including Oracle DB tuning at OS level, Creating, Resizing and managing online JFS File system for users upon user request using Veritas Volume manager (VVM) and LVM.
• Perform LAMP installation and configuration on Ubuntu, Red hat and Amazon Linux Instances.
• Installed and configured Drupal and Wordpress on both Amazon Linux and Ubuntu EC2 instances.
• Extensively involved in Backup & Restores.
• Installation/Configuration of ESXi 4.x and 5.1 servers and applying security patches to the ESXi servers.
• Experienced in monitoring and debug performance issues on different OS Linux (RHEL & Centos),Systems log management, Data backup and restoration with UNIX native tools (tar/dd).
• Installed and maintain puppet-based configuration management system, configure and managing LVM on Linux using tools like lv extend, lv create, resize2fs etc.
• Scanning the newly assigned LUNs to the serves and assigning them to volumegroup and increasing the file system using Redhat volume manager.
• Worked on FTP servers for sending and receiving files between local and remote servers.
• Worked with MySQL, MS SQL Server, and their feature set and created database in Mysql as per the requirement.
• ITM agent installation, configuration and setup monitoring for application logsMonitored system performance using sar, prof, vmstat, iostat, netstat, Nagios.
• Working with the native multipathing for the high availability installation / configuration on Red Hat clusters.
• Experience in administration & configuration management of Puppet on Linux and puppet enterprise Management from the console.
• Modifying the manifest as per the requirement on Puppet.
• Providing 24*7 on-call support on rotation basis and Handling High priority incidents through bridge calls.

Confidential, Berkeley heights, NJ

LINUX System Administrator

Responsibilities:

• Worked on the installation, configuration, and maintenance and troubleshootingof RHEL Ubuntu, SUSE, AIX servers.
• Created and managed user/group and sudo access on Redhat Linux.
• Worked on migration from physical to virtual (P2V) environment.
• Work on installation of VMware ESX migration of VM's and data storage, patch management, snapshot and template and clone.
• Install packages using RPM and YUM.
• Created a mirror copy of bare metal into a virtual environment and switch production from bare metal to virtual.
• Setup static IP address for new server.
• Setup logrotate for application logs and system logs.
• Created and managed FTP web interface to manage and send files to customer FTP site using PHP.
• Installed and managed apache, MySQL, PHP, Perl modules on Redhat Linux servers. Managed user and database on the MySQL database.
• Used apache proxy to access Jenkins.
• Wrote scripts to automate daily tasks like creating LAMP stack VP's, VPS load testing, SSL installations, MySQL replication.
• Worked on solving issue related to LAMP stack web servers, both shared and VPS.
• Used Puppet for creating scripts, deployment for servers, and managing changes through Puppet master Server on its clients.
• Assembled Puppet Master, Agent and Database servers on Red Hat Enterprise Linux Platforms.
• Installation and configuration of ­­­Web server Apache, MySQL and PHP in a LAMP stack.
• Designing and creation of process workflow maps and documents to understand a work process.
• Installed and configured Samba to help printing and file sharing.
• Deployed Linux hardware Nodes to host several KVM templates.
• Patch and Package administration to keep the servers updated with the patches and that implementing Packages developed for deployment.
• Created Bash scripts to monitor processes and making sure process startup when operating system restart using chkconfig and RC startup levels.
• Performed recovery from failed backup.
• Testing for Incident, Problem, Change, and Service Catalog, Knowledge Management.
• Troubleshoot experience with API, Apache Tomcat issues.
• Troubleshooting OS and user problems on various Servers and on different platforms.
• Configuring, administering and troubleshooting of NFS.

Confidential, Dallas, TX

LINUX Administrator

Responsibilities:

• Responsible for installing and configuring Red Hat Linux using Kick Start server.
• Installation and configuration ESX hosts. Making new virtual machines, with Linux Redhat server, making templates, cloning VMs using VMware Virtual Client .
• Created new File systems and Logical Volumes, performed file system management and troubleshooting in Redhat.
• Installing Redhat Linux using Kickstart and applying security policies for hardening the server based on the company's policies.
• Configuration of LVM (Logical Volume Manager) to manage volume group, logical and physical partitions and importing new physical volumes.
• Involved in SAN migrations at host level using LVM mirroring and SVM Mirroring.
• Installing and updating packages using RPM.
• Managed users, disks, group’s administration, File Sharing Permissions, backup and restore operations, and networking service.
• Configuration and installation of DHCP, DNS, web (Apache), mail (SMTP, IMAP, POP3) and file servers on Linux servers.
• Setup, configured and maintained NFS, NIS, and TCP/IP network, setting up SSH and SCP features between hosts.
• Lockdown the local accounts to secure the environment using NIS.
• Setup user and group login ID's, password and network configuration.
• Implemented early stages of a continuous integration process based on Jenkins.
• Worked with DBAs on installation of Oracle database.
• Installed and configured Oracle RAC 11g for database purpose.
• Worked and performed data-center operations including rack mounting, cabling.
• Automate configuration through Puppet.
• Responsible for installing, integrating, tuning and troubleshooting Apache, Tomcat, Websphere and Weblogicapplication server.
• Collaborate on monitoring and troubleshooting Servers using various third party tools like Nagios.
• Maintenance, performance, tuning and testing of servers for proper functioning.
• Network troubleshooting using 'netstat', 'ifconfig' and Worked closely with vendors on Hardware Problems, software fixes.
• Managing routine backup, scheduling jobs, enabling system logging and network logging.
• Troubleshooting tickets using BMC remedy.
• Developed bash shell scripts to automate routine activities.

Confidential

LINUX System Administrator

Responsibilities:

• Responsible for installing and configuration of RHEL, CentOS, and SuSe.
• Implemented day-to-day tasks in RHEL including user access, setting up sudo rules upgrading.
• Installed and configured RAID 0, RAID 1 and RAID 5.
• kernel, firmware, and rpms as well as adding SAN disks.
• Data Centers support contains 700 + servers.
• Configure IBM RS/6000 for production, staging and test environments.
• Worked with installation and configuration of VMware ESX servers.
• Installation and Configuration of SSH, TELNET, FTP, DHCP, DNS.
• Installation and configuration of NFS, NIS, TCP/IP and ZFS.
• Monitoring and troubleshooting issues of operating systems.
• Trouble shoot network issues using 'ndd', 'traceroute', 'netstat', 'ifconfig' and 'snoop' etc.
• Local and Remote administering of servers, routers and networks using Telnet and SSH.
• Installation and configuration of Web Sphere, Apache, Web Logic, LDAP, and mail servers.
• Use of packages like SAMBA in integrating UNIX file systems.
• Setting up printers on UNIX / NT machines to work seamlessly across platforms.
• Interacting with various teams such as Database, Net-backup and SAN teams.
• Worked with Veritas Netbackup for enterprise wide backup and recovery.
• Installation and configuration of Volume Manager, Cluster Servers.
• Document process and procedures for system and database usage.
• Creation and management of user accounts and groups according to the security needs and adding thePackages and patches when needed.
• Helped Development team to provide the information and troubleshooting.
• Network & Firewall troubleshooting.
• Documenting processes and troubleshooting scenarios on runbooks.
• Provided support for large number Production, Development and Test systems.
• Providing 24*7 on-call support on rotation basis and Handling High priority incidents through bridge calls.