SUMMARY:

• 7 years of experience in system administration working on multiplatform VMware, LINUX (Redhat 5/6/7, SUSE 9/10), UNIX (Oracle Solaris 9/10) and Windows server 2003 & 2008.
• Experience in System Administration, Server builds, Installs, Upgrades, Patches, Migration, Troubleshooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine - tuning Systems.
• Experience in upgrading VMware ESX,Xenserver,Hyper-V and KVM servers.
• Experience in virtualization of environment with VMware. Installation and configuration ESX hosts, Managing vcenters and datastores. Making new virtual machines, with Linux, Solaris, AIX, MAC OSX, and Windows, making templates, cloning VMs.Converting Physical to Virtual (P2V) and Virtual to Virtual (V2V) machines.
• Installation and configuration of httpd, udp, ftp servers, TCP/IP, DHCP, DNS, NFS, NIS and ZFS.
• Creating and maintaining users, profiles, security, and rights.
• Proficient in configuring KickStart and jumpstart servers to initiate installation of Red Hat Linux and UNIX (SOLARIS/ AIX) respectively on several machines.
• Experience using diagnostic and debugging tools such as Top, OS tools,Nagios, IBM Tivoli,languard, BMC BladeLogic automation suite, Legato networker (client side) and HP Insight Manager.
• Installed/configured IIS for performance tuning.
• Experienced in implementing Splunk, Puppet, Chef and DevOps
• Interact closely with developers and to improve Linux architecture and operations
• Used IIS creating connections to a backend SQL database.
• Strong technical background in Storage, Disk Management, Logical Volume Management (LVM) and logical partitioning.
• Experience in Creating new file systems, mounting file systems and un mounting file systems, Hands on experience in Tivoli Storage Manager (TSM), DiskSuite (SVM).
• Experience in installing the VERITAS, installing and configuring the Veritas cluster server (VCS), Veritas HA using the Veritas storage administration (Veritas volume manager, Veritas file systems) for the SAN configuration.
• Hands On experience on OpenShift Enterprise Configuration and Administration .
• Experience with High Performance tuning.
• Analyze architecture, infrastructure design and application flow to optimize performance and scalability.
• Proficient in configuring JumpStart and KickStart servers to initiate installation of Solaris and RedHat Linux on several machines at once.
• Performance Monitoring & Tuning - iostat, vmstat & netstat, nfsstat.
• Performed maintenance, monitoring, networking functionalities in HPC environment.
• Experience configuring Firewall and security using SSL, IPchains, IPtables, TCP Wrappers, Tripwire, and port scanners.
• Extensively worked with Version Control Systems SVN (Subversion), GIT, Clearcase, Perforce, and IBM Rational Team Concert.
• Experienced in building and maintaining Docker infrastructure for SOA applications in agile environment.
• Fully conversant with Systems Development Life Cycle (SDLC).
• Experience in installation and configuration of Apache, LDAP, and mail servers.
• Experience in writing Shell scripts using perl for process automation of databases, applications, backup and scheduling to reduce both human intervention and man hours.
• Administration of Red Hat Linux servers by installing rpm’s, mount/un-mount drives and also, Manage Disk Quotas on windows servers.
• Worked on JIRA tool to decide workflow of software.

TECHNICAL SKILLS:

Operating Systems: SUSE 10/11, Solaris 8/9/10, AIX 4.x, 5.1, 5.2, 5.3, RedHat 5/6/7/8/9, CentOS 3/4/5, Windows NT4.0, Windows 98/2000/XP/2003/2008 R2, MacOS.

Virtualization: VSphere 4/5, ESX/ESXi server 4.0, VSphere Client, VCenter, VMotion, Storage VMotion, VMware Update Manager, VMware Tools, VMware Converter, creating templates, cloning VMs, managing datastores.

Backups: Netbackup, OS level Backup, Storage level backup.

Storage: Netapp, HP EVA, IBMMidrange Tape Libraries- TS3100, TS3500, SUN enterprise tapes backup system

Hardware: Dell PowerEdge 12th generation tower type T110 II, rack type R415, R610 and C series, HP Proliant G5 Series servers, Cisco UCS 6500 BLADES,Ericsson SSR8000 series Routers, SE600 MSERs, Cisco 25XX, 35XX Routers amd 35XX switches.

Languages: Shell scripting-Perl, C++, bash, PowerShell, JavaScript, HTML, Python.

Databases: Oracle 11g/10g, SQL Server, MYSQL

Network protocols: TCP/IP, DHCP, HTTP, VPN, DNS, NFS, NIS, SSH, FTP, WinSCP and Telnet.

Tools: ORACE RAC 11g, VERITAS Netbackup 6.0, VERITAS Storage Foundation Suite, OpenShift.

WebTechnologies: Apache 2.0, Weblogic 8.1/10, VMware, Web Sphere, ESXi 5.x.x

PROFESSIONAL EXPERIENCE:

Confidential, Norfolk, VA

Linux/Unix Administrator

Responsibilities:

• Responsible for 300 Virtual Servers in house facility and 500 remote virtual servers for their maintenance, troubleshooting, disk management, their availability and different applications running on them. There are about 100 physical servers in this facility.
• Installation, configuration, administration of AIX 5/6,RHEL 6/7 &Solaris 9/10 using NIM, Jumpstart, custom configuration like package management, volume management of servers.
• Making new virtual servers in VMware with Linux (RHEL 5/6, SUSE 10/11, Ubuntu, CentOS), UNIX Solaris, IBM AIX and Windows OS, failover Clustering, installation of SQL servers, MSTDC configuration.
• Ensuring Data Protection and Disaster Recovery by using VMotion and VMware Consolidated Backup.
• Was responsible for Installation and configuration of physical solaris servers and Virtual Solaris servers. Patch management of Global and non-Global Zones.
• Worked on Chassis installation of Cisco USC blade servers 6500 series then Installing OS in them through KVM.
• Planned and implemented migrations from one environment to another environment in OS level and Hardware level in Solaris and HP-UX servers.
• Installed, configured and managed Oracle Real Application Cluster (RAC) and OracleData Guard on Solaris,HP-UX and Linux Servers.
• 300TB HP EVA storage migration to Netapp. Presented new storage to vcenters and Vmotioned the VMs to new storage and cleaned up old storage.
• For 300 TB HP EVA migration to netapp, I developed the procedure and trained my team mates to help me along this migration.
• Cisco Routers and switches upgrade from older versions
• Developed IBM AIX Servers Backup procedure through NIM server. 10 servers have 20TB SP with 2 TB each on 20 TB SP. I broke the 1 Big SP in to 10 2 TB SP so that recovery after server failure won’t take that long.
• Installed, updated, developed, and supported all custom cartridges for the OpenShift Enterprise platform as well as Linux level installation, configuration, and support of OpenShift Enterprise broker, DNS servers, and nodes.
• Made a process to restore IBM servers and documented each and every step for team in order to give them knowledge about process.
• Nagios Migration from Nagios core to Nagios XI enterprise version with nagios fusion integration on top. Created Custom Pluggins and perl scripts for monitoring. Troubleshooted Nagios XI, Taking Ticket system integration with nagiosxi. Custom Modifications in order to do required groupings. Integrated 4 Nagios XI in different Environments along 1 Amazon AWS server into Nagios fusion. Integrated Nagios XI to nagios Ticketing manager to make auto ticketing.
• Writing perl Scripts according to requirement for backups, monitoring and automation. Also wrote batch files.
• Automated provisioning of cloud infrastructure with Chef.
• Built S3 buckets and managed policies for S3 buckets and used S3 bucket and Glacier for storage and backup on AWS
• Setting Cloud Watch alerts for instances and utilizing in Auto-scaling launch configurations for better performance.
• Developed and managed cloud VMs with AWS EC2 command line clients and management console.
• Included security groups, network ACLs, Internet Gateways, and Elastic IP's to ensure a safe area for organization in AWS public cloud.
• Created elastic load-balancers (ELB) for different applications to provide high performance of applications.
• Utilized Amazon Route53 to manage DNS zones and assign public DNS names to elastic load balancers IP's.
• Implemented container management technologies like OpenShit.
• Good knowledge and experience in Openstack development and Virtualization concept
• Experience in Neutron Plugin development for L3 as a service on Openstack
• Built solution accelerator for appliance based FWaaS on Openstack / KVM.
• Worked on Continuous Deployment using Jenkins with Maven scripting.
• Extensive application support for various client/server applications.
• Network & Firewall troubleshooting, IP routing,
• Patch management for Linux, AIX, Solaris and windows through Lumenion. Also used languard for windows patch management.
• Install Veritas and create vfs for high availability storage.
• Implemented automations tools Chef, Puppet, Splunk, DevOps.
• Worked on Amazon AWS Cloud, EC2 managed watch application.
• Involvement in project tasks for upgrade and net new implementations.
• Server and Application tuning.
• HSM expertise on Sun Samfs, troubleshoot and working with Sun support.
• Configured Apache/Tomcat/JBoss/MySQL and PHP on Linux/Unix machine. Harden server and applications.

Environment: Linux redhat 6/5, HPUX, Oracle 10g solaris Servers, SUN sparc, Linux, Kick Start, jumpstart servers, VERITAS Cluster Server 4.1, nagios, splunk, Lumension, languard, perl Script, Netapp storage, HP EVA, VMware servers, Websphere.

Unix/Linux Administrator

Responsibilities:

• Responsible for installation, configuration, and administration of Red Hat Linux version 5 and 6, SUSE 10/11 and Centos.
• Installed and configured solaris 9 and 10 Virtual Servers in Vmware. Racking sun Solaris sparc servers T series. Installing OS on them by jumpstart servers and making non global zones on their top. Backing up Global and non global zones.
• Designed, supported, and maintained Oracle Real Application Clusters supporting business critical applications on HP blade system BL465c 8th generation, HP ProLiant DL385p 8th generation& Integrity Itanium2 platforms on RHEL 5 and 6.
• Expanded the environment from 128 to over 280 servers over the course of 12 months.
• Setup and maintained NFS, NIS, and TCP/IP network, configured the systems for TCP/IP Networking with the existing LAN, setting up SSH and SCP features between SUN systems and other Red Hat hosts.
• Maintained network and data security, maintained security compliance policies on the OS for SOX and internal audits.
• Planned and implemented migrations from one environment to another environment in OS level and Hardware level in Solaris and HP-UX servers.
• Implemented Continuous Delivery framework using Jenkins, Puppet, Ant/Maven in Windows/Linux/ubuntu environment.
• Worked on Puppet for automated deployment of applications and new servers.
• Installed and configured VMware ESX server instances for virtual server setup and deployment. Responsible for creating VMware virtual guests running Linux.
• Created detailed build docs and training procedure for the team so that they can make new virtual servers as well.
• Used RPM and YUM to update RHEL 6.
• Deployed Red Hat Satellite Server with custom repositories to provide a stable management solution for the Linux environment.
• Experience with Kickstart Installations on Linux Red hat.
• Installed, maintained and fine-tuned the Apache-Tomcat server and Websphere Application Server in Linux Platform
• Created Bash shell scripts to monitor system resources and system maintenance.
• Wrote Perl scripts to generate statistics and monitor processes.
• Deployed MySQL clusters using Red Hat Cluster Suite for supporting internal applications built on the LAMP stack and also trained the team for installation and configuration of LAMP.
• Automated system management tasks like user account creation, file system size monitoring, monitor system resources and system maintenance using Shell, and Perl scripts.
• Installed, configured & upgraded Websphere and application level troubleshooting for the Dev, Test& Production environment and maintained Load balancing.
• Worked with DBAs on installation of Oracle database.

Environment: RedHat Linux 5/4, Oracle 10g, HP Servers, SUN Servers, Linux, KickStart, Shell Script, Autosys, LDAP, EMC Storage SAN, VMware servers, Websphere.

Linux/Unix Administrator

Responsibilities:

• Install Red hat enterprise Linux 5.4, RHEL 5/6, SUSE 10/11, Ubuntu, CentOS on HP and IBM servers, creating partitions on the EVA 4400 using Linux volume Manager (LVM) to create disk space.
• Manage Virtual Machines, Installing VMware Tools, Creating Templates, Cloning, Deploy Virtual Machines using Templates, Converting Physical to Virtual Machines (P2V).
• Working with developers to load software onto UNIX servers and also debugging Scripts.
• Installed and configured other useful related softwares such as OpenSSH, BMC Patrol Best1, IBM Tivoli Storage Manager.
• Administered security, users, disks, Groups administration, File Sharing Permissions, daily backup and restore operations, networking service, performance, and resource monitoring.
• Installed and Administered VMware ESX 3.5 in multi-cluster environment with 8 physical nodes in each cluster.
• Installed and maintained several Linux and Windows servers on virtual environment.
• Used Veritas Volume Manager to create diskgroups, volumes, volume groups, and RAID’s and Used Veritas Netbackup tool for backup and recovery.
• Used VERITAS Cluster Server (VCS 5.5) to verify Failover/Pre-Failback/Failback in case of outage in the high environment.
• Involved in building automation scripts on OpenStack.
• Worked on OpenStack Compute, Block storage components of OpenStack.
• Network trouble shooting using 'netstat', 'ifconfig' and Worked closely with Vendors on Hardware Problems, software fixes.
• Administration of NFS, NIS, DNS, Samba and Send mail servers.
• Monitored system performance using sar, prof, vmstat, iostat, netstat, NagiosInstalled and configured RAID 0, RAID 1 and RAID 5. Created vmdisks and volumes using the volume manager according to the requirements.
• Worked with DBAs on installation of Oracle database, RDBMS database, restoration and log generation. Perform security patching of Linux servers

Environment: Linux 6/5/4, Oracle 10g, SUN Servers, SUN, Linux, Kick Start, Shell Script, Autosys, Veritas Volume Manager (VVM), LDAP, EMC Storage SAN, Veritas Cluster Server (VCS), VMware servers,Websphere. Puppet

Linux Administrator

Responsibilities:

• Installation, configuration and upgrade of Redhat Linux 4/5, RHEL 5/6, SUSE 10/11, Ubuntu, CentOS, HP-UX 11i and IBM AIX operating systems.
• Configured and installed HP-UX and Redhat Linux Servers using kickstart and making installation configuration files.
• Implementing file sharing on the network by configuring NFS on the system to share essential resources.
• Worked on building and supporting on Sun Midrange platforms and IBM AIX Midrange platforms.
• Worked on performance tuning in Solaris, Linux & HP-UX.
• Performed package and patching management and debugging in all flavors of UNIX& Linux.
• Expertise in capacity planning and migrations in HP-UX.
• Troubleshooting and analysis of hardware and failures for various Solaris servers (Core dump and log file analysis).
• Installation and configuration of Veritas Volume Manager (VXVM), Veritas file system (VFS). Implementation of RAID techniques and creation disk groups and volumes. Managing disks and file system using Veritas Volume Manager (VxVM), HP Service Guard in HP-UX and Linux servers.
• Built high-end servers, creating and loading images on Solaris, HP-UX and Linux servers using System manager tool.
• Installed, configured and managed Oracle Real Application Cluster (RAC) in Solaris, HP-UX and Linux servers.
• Patches and Package administration for installation of patches as per company policy and installation of packaged application.
• Installed, configured and managed Redhat Cluster Suite in Linux servers.
• Worked on live upgrades in Solaris and HP-UX servers. Configured and managed Zeta byte File System (ZFS) in Solaris, HP-UX and Linux Servers.
• Performed configuration and troubleshooting of services like NFS, NIS, DHCP, FTP, LDAP, Web servers, Samba server, and Apache server.
• Planned and implemented migrations from lower end to higher end in OS level and Hardware level in HP-UX and Linux servers.
• Configured and managed Redhat satellite Network server, performing package management tasks and errata updates.
• RPM package administration using RPM Build.
• Performed Data Backup and Recovery using Veritas Net Backup (VNB).
• Update the systems using Redhat Enterprise Network (RHN), Managing and monitoring through RHN.
• Knowledge of DAS, NAS and SAN concepts and technology. Also got knowledge in HA, Clustering, LAN.
• Responsible for setting up a disaster recovery plan for the servers, which includes in development of programs for synchronized backups.
• Worked on installing and configuring VMware/Esx Servers for virtualizations.
• Configured and maintained Network Multi pathing in Linux.

Environment: Red hat Linux 4/5/6, HP-UX 11i, AIX, Sun Enterprise Servers E5500/E4500, HP 9000K, L, N class Server, HP & Dell blade servers, IBM RS/6000, p Series servers, VMware ESX Server, Oracle, puppet

Linux Administrator

Responsibilities:

• Installation of Linux Operating system with necessary RPMs.
• Creation of VPN certificates and installing the same for users.
• Configured Samba file server to windows network.
• Installation of VMware client and creating different instances.
• Configured and managed Squid server using various acl’s for Internet Access.
• Installation of Network printers under TCP/IP and troubleshooting.
• Handling and preparing documents related to ISO 9001-2000 audits.
• Maintained the inventory of all the switches, routers, WAF boxes.
• Implemented and configuring RAID Devices.
• Configured Open-ssh server for secure remote administration.
• Set up a basic IP failover.
• Developed Application that would allow transfer of log files from Linux (Debian) computer to Linux server using C++ multithreading environment. These log files are served using web interface to any computer locally using C++.
• Implemented automated Backup using Backup PC.

Environment: Nagios, Backup PC, ESXi Server, DHCP Server, Open VPN server, Clone Zilla.

Software Engineer

Responsibilities:

• Maintenance and support of network and systems for users.
• Maintenance and troubleshooting of Desktops, Laptops and Printers.
• Ensured that systems are updated with latest patches and virus definitions
• Installation of Linux Operating system with necessary RPMs.
• Installation of VMware client and creating different instances.
• Configured and managed Squid server using various acl’s for Internet Access.
• Experience with Kick start Installations on Linux Red hat and Ubuntu.
• Installed, maintained and fine-tuned the Apache-Tomcat server and Web sphere Application Server in Linux Platform
• Created Bash shell scripts to monitor system resources and system maintenance.
• Installation of Network printers under TCP/IP and troubleshooting.
• Built up the networks for the newly received processes.
• Maintenance of Antivirus Management with McAfee Virus Scan Enterprise, Symantec.
• Installation and Maintenance of CDMA USB Data modem in laptops.
• Installation of new packages, services packs and upgrades of software, OS.
• Installation of all kinds of Company software and operating systems.
• Maintenance of coral reports and handling new setup per process.
• Documented backup process and have ensured that the process is followed.
• Initiated network enhancements that reduced network downtime.

Environment: Linux 6/5/4, SUN, Linux, Kick Start, Shell Script, Autosys, Veritas Volume Manager (VVM), VMware servers, Web sphere.Windows 2003 server, Squid, EPABX, Cisco 2500 switch.