SUMMARY

• 8+ Years of experience in Linux System Administration, VMWare and Build and Release.
• SQL Server 2008 and 2012
• Designed and implemented Linux server architecture for improved operational resiliency and performance.
• Senior Linux System Administrator with Linux, Red hat, VMWare, Secured Storage Systems.
• Management, Planning, Implementation and Security of Network & Server / Linux Services.
• System Architect, to analyze and deployments application on Linux System, seeking High Performance/Available.
• Amazon Web Services Architect (knowledge in aws services like ec2, cloudfront, opsworks, etc).
• DevOps (knowledge in jenkins, puppet, mesos, docker, python, ShellScript, etc)
• Around 8 Years of IT experience in Software Analysis and administration, Deploying and Implementation of business applications for Sales and distribution, Financial, Insurance and Telecom verticals.
• NAS storage data management, capacity planning and replication to disaster recovery site; implemented substantially more sophisticated disaster recovery solution.
• Managing build tool "Make", a classic UNIX build tool.
• Configuration and maintenance of common Linux applications such as Apache, MySQL, NFS, DHCP, BIND, SSH, and SNMP.
• Build automated test framework using Python language and writing automated test tools.
• Deploying, managing, and optimizing large scale, high transaction databases in a LINUX production environment.
• Expert in Installation, configuration of Patches.
• Experience with XenApp virtual desktop interface.
• Strong experience with Linux Clusters running VMWare and also configured, and Maintaining Oracle RAC servers on Redhat Linux 4 node clusters with EMC storage.
• Setup 40 Oracle VM hypervisor's and one TFTP server enabling users to re - image the hypervisor’s to test the different OVM/OVS OS builds
• Analytical skills and innovative to propose new solutions in automation area.
• SSL cert Installation on Linux machine
• Expertise in building development Linux/LAMP servers including webservers, MySQL and Perl based solution to assist developers.
• Worked on postgreSQL database.
• Generate and communicate reports and release notes.
• LAN installing, configuring and troubleshooting. Supports desktop hardware, software and applications.
• Deployed Puppet for configuration management to existing infrastructure.

TECHNICAL SKILLS

Operating Systems: LINUX ES, AS&WS 3.x, 4.x, 5.x,6.x, Oracle Linux 6.x, CentOS 6.x., Windows XP /Windows 7/Windows 2003 server, Windows 2008/2012 Server, VMware (GSX and Workstation, ESXi ), Mac OS X and Ubuntu.

Programming Languages: Shell, Python, perl, C and C++.

Network Servers: DHCP, DNS

Web Servers: Apache Tomcat Server 7.0/6.0/5.0.

Application Server: Apache Tomcat server, IIS, WebLogic, Web Sphere.

Virtualization: VMware ESX, ESXI, within VI3, XenApp.

Databases: Oracle, MySQL, MSSQL, Portgre, MySql4.0.1

Desktop Tools: Acrobat Writer, MS Word, Excel, PowerPoint, Outlook

Appliances: Network Appliance, VERITAS, Hitachi.

Monitoring Tool: Nagios.

PROFESSIONAL EXPERIENCE

Senior Linux admin

Confidential, New Jersey

Responsibilities:

• Installed and configured Red Hat Enterprise Linux 5.x, Sun Solaris 9, 10 and IBM AIX 5L 5.x operating systems on large distributed environment.
• Creation of a setup guide for NFV with containers.
• SSL cert Installation on Linux machine
• Courier/Dovecot,Exim/Postfix/Sendmail,FTP/SFTP,GnuPG,iSCSI,SSH,SSL/TLS
• Provided administration and support for Servers running on Red Hat Enterprise Linux 4.x/5.x and Sun Solaris 9, 10 operating systems.
• Troubleshooting sql servers MYSQL, TSQL and PSQL
• Supported virtual machines in Private cloud Environments.
• Installed Red Hat Enterprise Linux 5.x over the network using Kick start installation and installed Sun Solaris 9 using Jumpstart installation on Sun SPARC Servers.
• Performed Server consolidation and virtualization using VMware virtual infrastructure that includes VMware ESX, VMware Virtual Center and Virtual SMP.
• Assisted various testing groups and documenting procedures for testing and utilizing any open source tools such as MySQL and Tomcat.
• Performed System Backup using Veritas Netback up for Enterprise wide backup and recovery and to centrally manage storage resources through a single console
• Monitored the daily backup activities, Responsible for rotation of the media to the offsite vendor and maintained offset backup for recovery in case of a system crash.
• Build and setup and creatingof hot templates and appropriate orchestration mechanisms
• Backup and restoration of Database servers using SQL scripts.
• Configured networking services such as DNS, SSH, DHCP and printer services in Red Hat Linux servers.
• Implemented and monitored clustering on IBM p series servers using HACMP 5.2.
• Applied new patches and packages for Sun Solaris and Red Hat Linux Servers and handled issues arising out of them.
• Maintained availability, increased capacity and performance of production machines by upgrading their hardware and firmware.
• Attached LUNS provided by the Storage team to the required Unix/Linux Servers.
• Creating volume groups, logical volumes, extending logical volumes based on the requirements using Logical Volume Management (LVM) commands.
• Implemented Web Application Servers like Oracle Web Logic in Red Hat Linux environment respectively.
• Monitored failovers in HACMP cluster environment.
• Created users, enabled user permissions and maintained User & Group quotas on Solaris and Linux servers.
• Wrote Shell scripts to automate the administrative tasks using cron
• Tuning the kernel parameters based on the application/database requirement.
• Troubleshooting performance issues in IBM AIX and Red Hat Linux servers.
• Created project report and wrote technical document for various projects.

Environment: Linux 5.x, Sun Solaris 9, 10 and IBM AIX 5L 5 and SQL servers, maintained User & Group quotas on Solaris and Linux servers.

Senior Linux admin

Confidential, Chicago

Responsibilities:

• Performed Installation and configuration of Oracle Linux Server 6.6 Servers on Virtual environment (Hyper-V).
• Worked with network team to setup Network to Linux Environment
• Configured and Supported FC-SAN environment and LUN provisioning.
• Creating, maintaining of user accounts locally and using Centrify Suite, administration, local and global groups on Red Hat Linux platforms.
• Created yum repositories and configured them on the servers and Installed packages with yum and rpm for WebSphere application servers.
• Remote monitoring and management of server hardware.
• Worked on Linux network (TCP) performance tuning with sysctl to increase the network performance.
• Maintaining of sudoers file to provide limited access to user to improve the security of the Linux environment.
• Troubleshooting Linux network, security related issues, capturing packets using tools such as IPtables, firewall, TCP wrappers.
• Adding SAN using multipath and creating physical volumes, volume groups, logical volumes.
• Management of Red Hat Linux user accounts, groups, directories, file permissions and sudo rules.
• Experience on working with disk formatting, pvcreate, creating, extending and reducing of Volume group (VG)s, Logical volume (LV)s, disk striping and file systems creation.
• Worked with DBA and Application team to build the environment.
• Worked on resolving production issues and documenting Root Cause Analysis and updating the tickets using BMC Remedy.
• Applied appropriate support packages/patches to maintain system integrity.
• Installed and configured performance monitoring tools like Nagios, SCCM.
• Remote system administration using tools like SSH, Telnet, and Rlogin.
• Creating a rules in the Iptables. Working with firewall team to run firewall rules for server going to be built behind firewall.
• Worked with backup team to backup Linux servers using Netbackup.

Environment: Installation and configuration of Oracle Linux Server 6.6 Servers and Installed packages with yum and rpm for WebSphere application servers and SSH, Telnet, and Rlogin.

Linux system engineer

Confidential, Santa Clara, CA

Responsibilities:

• Manage and grow Ethernet networks and fiber-channel networks in fully redundant layout.
• Install and upgrades Solaris10 sun solaris 5.10
• Experience in creating VM templates and Managing Virtual machine deployments.
• Management of Virtual Center server and provided non Administrative accounts to other groups in the organization.
• Configure, maintain NFS, Samba Servers as per environment's requirements.
• Install and upgrades Red Hat Linux OS using Virtual Media Applet in ILO.
• Patch and upgrade the firmware HP blades using ILO and Onboard Administrator.
• Create and configure LVM based EXT 3 and OCFS2 based Cluster file systems on SAN LUNS utilizing multipath to assist redundant path detection and increase I/O stability.
• Deployed various Red Hat Enterprise Linux virtual builds using a combination of VMware templates and PowerCLI.
• Configure and maintain NEFS Servers for both media and data sharing between servers and resolved any shared storage server issues.
• Provide level 1, 2, 3 support for Physical Linux servers running on HP ProLiant BL460's and Linux Virtual Servers running on VMware ESXi.
• Assisted various testing groups and documenting procedures for testing and utilizing any open source tools such as MySQL and Tomcat.
• Maintain and deploy web farm servers designed to run on Apache and configured Apache to load any custom modules.
• Planning and Deployment of Local Area Network Administration.
• Monitoring, documenting change process and maintenance activities.
• Experienced with Red Hat AS/ES on Dell, HP and IBM hardware.
• Utilized Nagios based open source monitoring tools to monitoring Linux cluster nodes configured using Red Hat cluster suite.
• Adding new development user accounts, removing users, resetting user accounts in Red Hat Enterprise Linux to allow new developer’s access to Red Hat Servers.
• Experienced with Installing and Managing ESX 3.5 and beta testing ESX 4.0 and vSphere
• Set up and configured various benchmark test to kernel tune Linux operating system for DBA’s and other groups in the organization
• Installed physical hardware including any HBA and modified any kernel parameters to tune the hardware as per the vendor request
• Provided 24/7 pager support along with working several 1,2,3 groups in the organization
• Analyzing, troubleshooting and resolving problems involving operating system issues, application issues, Website issues.
• Installed, configured and upgraded Red Hat Enterprise Linux 4.x to 5.x and configured various patching schedules to meet patching criteria quarterly.

Environment: NFS, Samba Servers, Installing and Managing ESX 3.5 and beta testing ESX 4.0 and Nagios

Unix/Linux Systems Administrator

Confidential, Charlotte, NC

Responsibilities:

• Installing, Configuring and Maintained Red Hat Enterprise Linux 4, 5.
• Built VMWARE servers with images for Windows & Linux operating systems to validation & testing of packages created.
• Experienced in Install Operating System and configure kernel parameters for Linux/Unix servers.
• Experienced in patching and upgrading OS levels for Linux/Unix servers.
• Used RPMs to install, update, verify, query and erase packages from Linux Servers.
• Migrated Physical Machines to Virtual Machines.
• Worked on automation of activities through scripting (Python, Bash).
• Resolved day-to-day issues on network and Hardware.
• Worked on DNS, LDAP, remote access, security management, and system troubleshooting skills.
• Installing and Configuring Mail Server in Linux.
• Experienced in Logical Volume Management on Linux
• Configuring & maintaining Squid Proxy Server.
• Performed operating system installation, configuration, and verification and testing.
• Managed and implemented changes, upgrades, security procedures and policies to the Linux.
• Configure and maintain Windows 2003 Server that runs DNS, DHCP and active directory services.
• Have good exposure on Mirroring Concept.
• Responsible for Day to Day Backup and Recovery using tar. Updated backup scripts on different environments.
• Worked with IT-Infrastructure/Network teams, towards Data center quarterly maintenance like servers reboot
• Performed user administration: add/delete/modify users & user groups and respective privileges and resource permissions.
• Involved in complete Administration tasks on Linux/Unix and documentation for the projects executed.
• Responsible for providing support and assistance in initial installation of the system, setup and maintenance of the user account, data recovery, etc.
• Evaluate and/or recommend purchase of computer, network hardware and peripheral equipment.
• Experience supporting 24x7 production computing environments, experience in providing on-call and weekend support.
• Maintained production servers ensuring productivity at all times.
• Troubleshot and resolved issues on Red Hat, Win 98, 2000, and XP machines containing classified data.
• Resolved the operating system issues and updating antivirus.
• Identified and resolved escalated issues with remote, on site Linux servers, Cisco switches/routers.
• Installed printers and other network devices, authored scripts designed to automate installation of new components. Provided end user support.
• Monitored PCs/network operations and documented any security issues. Applied software pates, reconfigured networking settings, and instituted other information security procedures.

Environment: Git, Subversion, Apache Tomcat, Bamboo, Jenkins, Maven, Confluence, Artifactory, Rally, Jira, Puppet, Ruby, CentOS, Python, Yum, iOS, Xcode, HockeyApp, Shell Scripts

System Admin

Confidential

Responsibilities:

• Managed Windows/Linux Hosted servers across all locations with respect to Applications/DB.
• Administered Windows/Linux Active Directory, Proxy Server, Web Server, Log server, Repository and MySQL server.
• Scheduled and ensured proper Backups of all Application Databases.
• Hands-on experience with design and implementation of big-data-processing.
• Worked with Redhat Package Manager (RPM) and YUM.
• Deployed and installed New Servers for various Applications Windows/Linux
• Automated in the form of tools and Scripts to reduce IT Work bare minimum
• Resolved Operation issues which comes in the form of Tickets across all locations
• Worked in setting up LDAP, DNS, DHCP Server along with effective Group and System Level policies and roaming profile features by using Samba and NFS
• Deployed Open source - Linux based VPN Server, SVN-Repository Server, Mail-Server (Sendmail), Apache /Tomcat Web based Server and Applications and Chat Server (Openfire, Jabber)
• Worked in setting up ISCSI Devices (Storage)., LVM’s
• Installation and setting up Firewall (Iptables), ACL’s, Quotas, Syslog server
• Windows 2003- Active Directory Group policy creation/configuration, DL Creation, User Creation, DHCP Scope creation, DNS Records/Zone look-ups creation.
• Working Knowledge in setting up VMWare Architecture (Xen/VMWare Server/Qemu/KVM)
• Process/Agent Calls and Quality management - includes calls storage, retention, conversion, server management, live screen and call barging, live feedback/chat, DNIS management and process specific configuration.

Environment: Xen/VMWare Server/Qemu/KVM and ACL’s, Quotas, Syslog server.

Unix/Linux Systems Administrator

Confidential

Responsibilities:

• Installing, Configuring and Maintained Red Hat Enterprise Linux 4, 5.
• Install and upgrades sun Solaris 5.10
• Experienced in Install Operating System and configure kernel parameters for Linux/Unix servers.
• Experienced in patching and upgrading OS levels for Linux/Unix servers.
• Used RPMs to install, update, verify, query and erase packages from Linux Servers.
• Migrated Physical Machines to Virtual Machines.
• Worked on automation of activities through scripting (Python, Bash).
• Resolved day-to-day issues on network and Hardware.
• Worked on DNS, LDAP, remote access, security management, and system troubleshooting skills.
• Installing and Configuring Mail Server in Linux.
• Experienced in Logical Volume Management on Linux
• Configuring & maintaining Squid Proxy Server.
• Performed operating system installation, configuration, and verification and testing.
• Managed and implemented changes, upgrades, security procedures and policies to the Linux.
• Configure and maintain Windows 2003 Server that runs DNS, DHCP and active directory services.
• Have good exposure on Mirroring Concept.
• Responsible for Day to Day Backup and Recovery using tar. Updated backup scripts on different environments.
• Worked with IT-Infrastructure/Network teams, towards Data center quarterly maintenance like servers reboot
• Performed user administration: add/delete/modify users & user groups and respective privileges and resource permissions.
• Involved in complete Administration tasks on Linux/Unix and documentation for the projects executed.
• Responsible for providing support and assistance in initial installation of the system, setup and maintenance of the user account, data recovery, etc.
• Evaluate and/or recommend purchase of computer, network hardware and peripheral equipment.
• Experience supporting 24x7 production computing environments, experience in providing on-call and weekend support.
• Maintained production servers ensuring productivity at all times.
• Troubleshot and resolved issues on Red Hat, Win 98, 2000, and XP machines containing classified data.
• Resolved the operating system issues and updating antivirus.
• Identified and resolved escalated issues with remote, on site Linux servers, Cisco switches/routers.
• Installed printers and other network devices, authored scripts designed to automate installation of new components. Provided end user support.
• Monitored PCs/network operations and documented any security issues. Applied software pates, reconfigured networking settings, and instituted other information security procedures.

Environment: DNS, LDAP, remote access, security management, scripts on different environments and Solaris10 sun solaris 5.10.