SUMMARY

• Experience as Linux/Unix system administrator on Redhat EL 5.x, 6.x, Debian, CentOS 4.x,5.x, Suse, Oracle Enterprise Linux, FreeBSD, Solaris 9,10,11 and VMware vSphere ESX/ESXi environment.
• Motivated, enthusiastic, and pro - active System Administrator with an excellent 'can-do' attitude.
• Experience with VMware vSphere ESXi 4.1/5.0/5.1/5.5
• Extensive experience with RAID using Volume Management Software like Logical Volume Manager, Veritas Volume Manager.
• Experienced in Installation of Operating Systems, Packages and Patches, adding peripherals, maintaining user accounts, System Security maintenance, backup/recovery, performance tuning, troubleshooting at various levels etc.
• Extensive experience with Kickstart in Redhat Linux
• Expertise in implementation and maintenance of NFS, NIS, DNS, LDAP name services.
• Excellent knowledge of clustering techniques to ensure high availability and GFS deployment.
• Experienced in implementing and administering VMs using VMware ESX 3.1 and vSphere 4.x,5x and vCenter and building KVM Hypervisor
• Knowledge of load balancing and clustering techniques to ensure high availability.
• Security management like performing security health checks as per policies / procedures, patching the servers based on the advisories for the applications and operating systems.
• Hands-on experience with Veritas Cluster Server and Veritas NetBackup.
• Experience in networking concepts like DHCP, TCP/IP, IP Addressing, Networking Technologies and WLAN.
• Experience in installation and configuration of Apache 1.3.x, Tomcat, WebLogic 9, 10, and JBoss.
• Hands-on experience in diagnosing, troubleshooting various networking, hardware & Linux/ UNIX server’s services issues and performing preventive maintenance.
• Experienced in writing / modifying shell scripts for process automation of systems, applications, backups etc.
• Installed and implemented open source OpenFiler 2.3, iSCSI SAN with RAID 10 for VMware and other servers with iSCSI initiators. Also managing iStor SAN and Symantec Backup Exec 12.
• A quick learner with excellent problem-solving and interpersonal skills.
• Self motivated, goal-oriented, good team player, and highly adaptive to changes.
• Self starter, self motivator and quick learner. Excellent interpersonal communication skills. Strong problem solving skills. Ability to work in a team or on an individual basis.

TECHNICAL SKILLS

Operating Systems: RHEL 5/6, OEL5/6, Centos 4/5, Fedora 11/12, Windows 08/12Services NFS, SSH, SFTP, FTP, rlogin, RPM, YUM, Samba, Auto FS, Telnet.

Monitoring Tools: Tivoli, Nagios, Cacti, Zabbix

Testing Tools: Nmap, Nessus, Saint, Nexpose, hping

Languages: C, C++, HTML, Java Script, SQL, Bash, Python Scripting

Virtualization: VMware and VSphere 4.0/5.0/5.1

Networking: TCP/IP, UDP, LAN, WAN, NIS, NIS+, DNS, DHCP, NAS

Filesystems: LVM, VxVM, SVM

Data Base Servers: Oracle 8.x, 9.x, MS-SQL

Applications: Apache, Tomcat, Web logic

PROFESSIONAL EXPERIENCE

Confidential, Minneapolis, MN

System Engineer

Responsibilities:

• Installation and configuration of CentOS and windows 12 on new server builds as well as during the upgrade situations.
• Deploying Centos 6x and windows servers in fast paced environment.
• Worked on VMware ESXi 5.5 for all Build purpose and clustering the centos and windows server.
• Worked on Microsoft Azure for the server cloud side. For deploying windows server.
• Log management like monitoring and cleaning the old log files.
• Worked on RAS client and CouchBase DB Server.
• Migrating of RabbitMQ messaging server to Apache kafka as it supports both in going and outgoing server sync.
• Installation of Apache kafka as a messaging Q server on the Centos Build.
• Deployed Apache Cassandra on the linux boxes to support kafka.
• Worked on JIRA as a ticketing system for all the tickets to be resolved.
• System audit report like no. of logins, success & failures, running cron jobs.
• System performance for hourly basis or daily basis.
• Experienced in tasks like managing User Accounts and Groups, managing Disks and File systems.
• Remotely coping files using sftp, ftp, scp, winscp, and filezilla.
• Created user roles and groups for securing the resources using local operating System authentication.
• Experienced in tasks like managing User Accounts and Groups, managing Disks and Filesystems.
• Configuring & monitoring DHCP server.
• Taking backup using tar and recovering during the data loss.
• Documenting the installation of third-party software’s.
• Maintaining relations with project managers, DBA’s, Developers, Application support teams and operational support teams to facilitate effective project deployment.
• Manage system installation, troubleshooting, maintenance, performance tuning, managing storage resources, network configuration to fit application and database requirements.
• Responsible for modifying and optimizing backup schedules and developing shell scripts for it.
• Performed regular installation of patches using RPM and YUM.
• Maintained LVM, VxVM and SVM filesystems along with NFS.

Environment: CentOS 6x, Windows 12, HP, Apache Kafka, Cisco routers/switches, Dell 6400, 1250, Cisco M240

Confidential - Atlanta, GA

System Engineer

Responsibilities:

• Installation and configuration of Red Hat Linux, oracle Linux, windows 2003, 2008 & 2012 on new server builds as well as during the upgrade situations.
• Experience with VMware vSphere ESXi 5.5
• Deploying oracle Linux, red hat Linux, and windows servers in fast paced environment.
• System audit report like no. of logins, success & failures.
• Remotely coping files using sftp, ftp, scp, winscp, and FileZilla.
• Created user roles and groups for securing the resources using local operating System authentication.
• Modified Kernel parameters to improve the server performance in red hat Linux & oracle.
• Experienced in tasks like managing User Accounts and Groups, managing Disks and Filesystems.
• Installation of OSSEC for the intrusion detection in the server and its configuration to check specific services are running only
• Installation of centrify (express edition) and integration with Active Directory Server for Linux Systems and updated the user login in centrify configuration.
• Install and configure packages for the server they are needed by vendors.
• Participated in the migration planning, developing, testing and moving the migration process onto full-fledged production network
• Manage logical Volume manager on Red hat Servers
• Configuring & monitoring DHCP server.
• Experience in installing, integrating, tuning and troubleshooting Apache and Tomcat application server.
• Worked on EMC storage for the virtual machine.
• Supporting Customers on a real time Issue Trak ticketing System for solving online operational issues.
• Taking backup using tar and recovering during the data loss.
• Documenting the installation of third-party software’s.
• Maintaining relations with project managers, DBA’s, Developers, Application support teams and operational support teams to facilitate effective project deployment.
• Manage system installation, troubleshooting, maintenance, performance tuning, managing storage resources, network configuration to fit application and database requirements.
• Performed regular installation of patches using RPM and YUM.
• Maintained LVM, VxVM and SVM filesystems along with NFS.
• Migrated centrify configuration to samba winbind to authorize and authenticate users of the domain to have access to the servers.
• Patching of windows server in the weekly basis on the entire environment as needed.
• Performed application installation and management on Linux servers for applications like JBoss 4.2.x, 5.x, Oracle
• Installation of SAMBA 3.6.x server for interface between Linux servers and Windows servers to share files.
• Troubleshooting of day to day system and user problems various Servers on windows & Linux both.

Environment: s: Red Hat Enterprise Linux 5/6, Oracle 10g/11g, Apache, Red Hat Cluster Suite 5.3/4.8

Confidential, Racine, WI

System Administrator

Responsibilities:

• Experience in vSphere 5.0, 5.1 /ESXi 4.1, 5.0, 5.1deployment and management.
• Advance Scripting skills in Perl and Bash Shell.
• Day to day system administration to support 100+ Server in Production in development environments.
• Primary support to all kind of issues for All of Unix and Linux
• Worked with Redhat for finding root cause on panic issues
• Installation and configuration of SUDO package accomplished successfully across various UNIX platforms.
• Limiting user account privileges using SUDOERS.
• Installation and configuration of Web /Application Server Tomcat and Apache
• Implementing appropriate permissions for files and folders and Managing Users and Groups
• Troubleshooting of day to day system and user problems various Servers on different platforms.
• Familiarity with configuring and using a Configuration Management product for Linux servers (e.g. Cobbler)
• Servers support included NFS, NIS, LDAP, NTP, FTP, user’s setup/troubleshooting.
• Installed OS patch clusters and 3rd party application patches
• Monitoring Disk space, adjust VXVM Configuration& add space as and when needed
• Working knowledge of Remedy ticketing system.
• Worked on the configuration of server monitoring tool like Nagios, Zabbix.
• Monitoring and install or updates patch software’s, firmware, and security patches for all applications in installed infrastructure.
• Creation and Maintenance of User Accounts file systems and successfully created logins IDs on large number of servers
• Administrated DHCP, DNS and Samba services in Linux.
• Configuration, Administration and maintenance of NFS, DNS, NIS on Linux Servers.
• Working on evaluating new hardware and software’s.
• Provide 24x7 on-call /Remote Support for UNIX Production Problems.
• Responsible for Installation of various Hardware Components on various servers.
• Installation, Maintenance and Administration of Red Hat Enterprise and CentOS.
• Responsible in building and startup shell scripts, managing the automation of CRON jobs
• Responsible production support of LDAP, Domain users, Users and groups and given appropriate permissions, shares and privilege to access LAN and Domain environment.
• Implemented Redhat Conga Clustering for Apache Web Servers, Puppet, Git, SVN.
• Installed and Implemented VMware ESXi 4.0 host servers with vSphere Client, vSphere CLI. Configured HBAs and iSCSI SAN storage.
• Configure vNetwork Standard Switches, vSS Policies, and Shared storage for vSphere.
• Create and Deploy Virtual machines & vApps
• Create and configure VMFS Datastores.
• Manage Virtual Machine Clones and Templates, plan and implement VMware Fault Tolerance
• Familiar with backup and restore of VMware host server configuration, Virtual Machine backup, snapshot, P2V-V2V conversation with VMware converter and with other third party converters, Patch updating, monitoring/reporting, SSH and SNMP and notification of alerts.
• Installed and implemented open source OpenFiler 2.3, ISCSI SAN with RAID 10 for VMware and other servers with iSCSI initiators. Also managing iStor SAN and Symantec Backup Exec 12.
• Installed and implemented Manage Engine monitoring application and configured SNMP and WMI on Servers and other network devices for reporting and alerts notifications.
• Installed and Tested VMware Site Recovery Manager (SRM 2.0/4.0) for the disaster recovery and managed recovery plans
• Participated in the migration planning, developing, testing and moving the migration process onto full-fledged production network

Environment: Red Hat Enterprise Linux 4.x,5.x VERITAS Cluster Server, Veritas Volume Manager, Oracle 11g, HP UX, MS Windows Server, JBoss, Tomcat, Apache, WebLogic