SUMMARY:

• 8+ years of IT experience in AIX/Linux/Windows Systems Administration and Server Virtualization, worked closely with Software development, application and database teams to meet business and technical demands.
• Experience in installation, configuration, backup, recovery, maintenance, and support of RedHat Enterprise Linux, Oracle Enterprise Linux, SUSE, CentOS and AIX on Virtual(VMWare) and Physical( Confidential, Dell and Confidential ) environments.
• Experience in Linux - based Virtualization implementations such as VMWare and Xen
• Experience in Managing VMware ESX servers 3.x/4,x/5.x running on Confidential /Dell/ Confidential, C7000 & Cisco UCS hardware and supported VM's running Linux and Windows
• Experience in cloning virtual machines using guest operating system template on VMWare ESX server
• Experience AIX/Linux/Solaris Systems Administration (Red Hat, SUSE & Vmware ESXi)
• Worked on Design and build of core platforms.
• Expertise in using HMC to create AIX LPAR, DLPAR, micro partitioning
• 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.
• Creating, maintaining of user accounts locally and using ldap, user administration, local and global groups on Solaris and Red Hat Linux platforms.
• Knowledge and worked on server configuration management via Puppet
• Managing and Configured auto-scaling website platform with peak visitors.
• Worked on Capacity planning, Bottleneck identification
• Managed Development, Pre-Prod and Production environments
• Worked with Subversion server administration and replication
• Designed, configured, and implemented an enterprise Red Hat Linux Kickstart DVD installation to automate installation of RHEL workstation servers.
• Designed, configured, and implemented an enterprise Red Hat Linux Kickstart DVD installation to automate installation of RHEL workstation servers.
• Installation, configuration and maintenance of multiple VMware ESX clusters spread across four geographies.
• Expertise in Vmware Virtualization solutions, VM Migration & Cloning;
• Experience in installation, configuration, tuning, security, backup, recovery and upgrades of UNIX/LINUX
• Worked on Confidential Sterling Connect Direct, Winscp, Proftp for point-to-point file transfer solution for enterprise.
• Configured SSH for secure logins and supported the File transfer solutions.
• Troubleshooting the end client issues with Logins and File transfer errors.
• Worked extensively on NFS and SONAS mounts from windows servers onto Linux Servers.
• Installed, Configured, and supported an enterprise Red Hat Linux Kickstart DVD installation to automate installation of RHEL workstation servers.
• Volume and Filesystem management using Veritas Volume Manager (VxVM) and Veritas Filesystem (Veritas Storage Foundation).
• Extensive experience in installation, configuration, maintenance, design, development, implementation, upgrading and support on UNIX/LINUX environment.
• Experience in DNS, NIS, NFS, LDAP, Send mail, ftp, remote access, security management, and system troubleshooting skills.
• Experience in migrations and decommissioning of the systems.
• Managing cron jobs, batch processing and job scheduling.
• Working on NFS/NAS, Storage Area Networks (SAN), SSA disk storage environment.
• Efficiency in installing, configuring and implementing the RAID Technologies using various tools like VxVM and SVM.
• Experience in Installing, configuring and maintaining apache/tomcat, samba & send mail, Web Sphere Application Servers.
• Expertise in LDAP setup and Administration; Other experience including DNS, NIS, NFS, DHCP, Kickstart, Web and E-mail and in SAN/NAS Storage.
• Configured Networking Concepts DNS, NIS, NFS and DHCP, troubleshooting network problems such as TCP/IP, providing support for users in solving their problems.
• Good presentation, customer support and trouble shooting skills & experience in providing 24x7 supports.

PROFESSIONAL EXPERIENCE:

Confidential, Dubuque, IA

Sr System Administrator

Responsibilities:

• Provided AIX/ Windows AHT (Above hypervisor support) to more than 100+ Confidential servers such as power7/6/5 p520s, p550s, p570s, p595s, p760s, p770s running AIX 5.3/6.1/7.1
• Experience in Micro-partitioning and VIO client/server on p Series Servers.
• Installation of RHEL on the Confidential blades, X series (3850's and 3650's), and on Dell Power Edge servers (1950,2950,2900)servers either by ISO boot or PXE boot using the kickstart server.
• Confidential 's SVC and DS series, Power Path installation and involved in Storage Area Network (SAN) administration.
• Applied and maintained DISA/NSA STIG configurations to Microsoft and other vendor software products; administered site anti-virus and IPS/IDS software suites.
• Creation of logical partitions using LPAR/DLPAR, micro partioning and installation of AIX in p650/p670 (regatta) series model thru HMC and p5-p590, 595 series of servers
• Used VMWare to create, and maintain Linux (Suse and Red Hat) environment.
• Installation, Configuration, troubleshoot and Upgrade of RHEL 4/5/6, Esxi 4.x/5.x/ESXi 6.0 operating systems.
• Installation, configuration &Upgrade of windows 2012 and, Red Hat Linux operating system.
• Migration of Physical and Virtual servers(P2V, V2V) from one datacenter to another datacenter.
• Woked on upgrade on Confidential info rmation governance tools.
• Designed the infrastructure of Confidential Infosphere Optim and installed it on Linux, and windows operating systems.
• Experience building Solaris virtual servers (LDOM and Zones) using Oracle Ops Center.
• New server builds using VMware vSphere and Cisco UCS for SuSE Linux and Solaris.
• Installed Linux, RedHat 6, 7 On Confidential, Dell servers and through VMware vsphere.
• Extensively used LVM - created VGs, LVs & disk mirroring for Confidential p-series servers.
• Resolved issues related to Windows, application, virus isolation, and removal, storage and hardware configuration problems
• Created and maintained DLPAR by HMC on the pSeries servers according to the resources demands from the other teams.
• Maintenance and trouble shooting of NFS (Network File System).
• Creation of LPAR/DLPAR, micro-partitioning and installation of AIX in p4 / p5 / p6 series model through HMC and p5-p570 series of servers for virtualization.
• Deployed and administered Microsoft SQL Server in standalone and clustered environments
• Experience in the building LPAR and making them VIO Servers and VIO clients as per requirement and Mapping of the VIO servers and VIO clients for the virtualization of adapters, memory etc.
• Installation, upgrade, configuration, fail over/fail back testing for HACMP 5.4.
• Applied and maintained DISA/NSA STIG configurations to Microsoft and other vendor software products; administered site anti-virus and IPS/IDS software suites.
• Worked with the Application and Network teams to analyze and solve performance related problems.
• Remotely access of the File Systems on the NFS Client through NFS Server.
• Worked on TCP/IP configuration, IP address assigning, network interface configuration, static route creation, assigning gateway for two different networks, host name resolution, changing IP address.
• Maintenance and trouble shooting of NFS (Network File System).
• Troubleshooting of the system boot errors, installation errors and related to the TCP/IP problems.
• Coordinated with other team members for the shift work adjustment.

Confidential, Charlotte, NC

System Administrator

Responsibilities:

• Installation of Linux OS by using kickstart on DL G5 385 boxes.
• Configuring and Administering NFS, DNS, NIS, NIS+ and LDAP on Solaris server environment.
• Worked on Design and build of core platforms
• Knowledge and worked on server configuration management via Puppet
• Migrated key systems from on-premises hosting to Amazon Web Services
• Managing and Configured auto-scaling website platform with peak visitors.
• Worked on Capacity planning, Bottleneck identification
• Managed Development, Pre-Prod and Production environments
• Designed, configured, and implemented an enterprise Red Hat Linux Kickstart DVD installation to automate installation of RHEL workstation servers.
• Designed, configured, and implemented an enterprise Red Hat Linux Kickstart DVD installation to automate installation of RHEL workstation servers.
• Experienced in Installing, Configuring and Troubleshooting Sun Solaris 8, 9 and 10.
• Experienced working with solaris10 container technology, created local and global zones, modified local zone parameters.
• Experienced in Virtualization on Solaris Zones and VMware ESX Server environments.
• Used Jump Start to install Solaris 9/10 Operating Environment.
• Extensively worked on solaris10 container technology, created local and global zones, modified local zone parameters.
• Worked on Solaris 10 container technology, created local and global zones, modified local zone parameters, created file systems on local and global zones.
• Created Zettabyte file system (ZFS) in Solaris 10. Created zpools. Exported ZFS from local zones to local zones.
• Managed resources for zones using Solaris 10 container technology.
• Created/used LDOM in Solaris 10 and installed multiple OS.
• Worked with Subversion server administration and replication
• Installation, configuration and maintenance of multiple VMware ESX clusters spread across four geographies
• P2V migration of key Database servers and kickstart of Redhat and Ubuntu servers.
• Worked on Confidential Sterling Connect Direct, Winscp, Proftp for point-to-point file transfer solution for enterprise.
• Configured SSH for secure logins and supported the File transfer solutions.
• Worked extensively on NFS and CIFS mounts from windows servers onto Linux Servers.
• Modify Solaris system parameters
• Backup Solaris servers using VeritasNetbackup
• Worked on creating and modifying Script for Alerts, Backups, Cron Jobs and log rotations.
• Supporting Database environments (Oracle, DB2).Provisioning and building Linux servers both Physical and Virtual using Vmware and LPAR's in AIX.
• Configure and troubelshoot TCP/IP
• Install, configure and support third party software
• Create and configure Solaris virtual servers
• Provisioning and support of Production, QA and Developers environment.
• Deployment and Build of various environments.
• Configure Solaris servers to work with SAN EMC
• Installed, Configured, and supported an enterprise Red Hat Linux Kickstart DVD installation to automate installation of RHEL workstation servers.
• Worked with the Release team to build and support various environments.
• Database Administration, design, maintenance and production support; Database Migration from MD1000 Storage to NetApp FAS2040( Clusters) Filers and management of ISCSI/Multipath networks.
• Administration, Maintenance and Management/Monitoring of Netapp filers/Clusters which includes FAS 2040
• VMware Infrastructure 3.x/vSphere Installation & Configuration; VMware vSphere client, Virtual vCenter Server; Virtual Server creation, allocation & server configuration
• Planning and Designing VMware VI3/vSphere (ESX3.5/ESXi 4.0/ESXi 4.1 and VMware VirtualCenter) Environment.
• Administration of Web based Internet/Intranet Client/Server multi-tire distributed applications; Installing Patches & packages on Unix/Linux Servers.
• Shell scripting, Perl & Python scripting for Linux/Unix Systems Administration and related tasks. Storage / Servers daily checks, performance tuning, performance monitoring and health checkup; Planning, preparation and implementing Data ONTAP upgrades.
• Storage LUN provisioning; Qtree, CIFS File System, NFS File system Management
• Other administration tasks handled are: Tuning the Operating System for optimum performance, Debugging system defects and crash dump analysis, Planning and Executing System and Network Upgrades.
• Meeting deadlines without compromising quality norms & Performed occasional off-hours and remote support.

Confidential, Blue (BCBS), Newark, NJ Jun 2011 - Jul 2013

System Administrator

Responsibilities:

• Responsible for supporting Linux System Administrator customers with RHEL/CentOS/Ubuntu operating systems questions and problems via telephone, FAX, and email.
• Researched the data base for known problems or tested the customers problem on a test system in the same environment.
• Aided customer in resolving their problem using the tools in the Linux OS or from the command line.
• Worked on Design and build of core platforms
• Knowledge and worked on server configuration management via Puppet
• Migrated key systems from on-premises hosting to Amazon Web Services
• Installing, upgrading and configuring RedHat Linux 4.x, 5.x, 6.x using Kickstart Servers and Interactive Installation.
• Excellent experience in shell scripts, KORN and BASH.
• UNIX/LINUX Systems and Network administration for Linux RedHat (RHEL 4, 5, 6), CentOS, SUSE, Debian and AIX
• Manage the configurations of more than 4000 servers using Puppet Automation of various administrative tasks on multiple servers using Puppet.
• Installed and configured send mail, postfix on Linux servers.
• Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging,
• Installation and configuration of Redhat Device Multipathing.
• Expertise in scripting for automation, and monitoring using Shell, PHP, Python & Perl scripts.
• Managing and Configured auto-scaling website platform with peak visitors.
• Worked on Capacity planning, Bottleneck identification
• Managed Development, Pre-Prod and Production environments
• Worked with Subversion server administration and replication
• Installation, configuration and maintenance of multiple VMware ESX clusters spread across four geographies
• P2V migration of key Database servers and kickstart of Redhat and Ubuntu servers.
• Worked Winscp, Proftp for point-to-point file transfer solution for enterprise.
• Configured SSH for secure logins and supported the File transfer solutions.
• Troubleshooting the end client issues with Logins and File transfer errors.
• Worked on creating new and modifying Script for Backups, Cron Jobs and log rotations.
• Provisioning and support of Production, QA and Developers environment.
• Deployment and Build of various environments.
• Overall responsibilities include checking the health of servers, updates and backup. Check with the trouble ticketing system for any unread ticket.
• Also troubleshooting if there any bottlenecks; Responsible to perform BIOS update on Dell Systems. Handled all system administration duties for all Red Hat Linux and VM Servers on site.
• Responsibilities ranged from daily tasks to more advanced ones such as shell scripting, software installation and system/network troubleshooting.
• Configuration and Installation of JBOSS 4.x on Linux servers.
• Installed and configured JMX-based services on JBOSS.
• NIS, NFS, AUTOFS, NTP Configuration and Administration.
• Analyze and suggest corrective methods on performance issues.
• Package and patch administration.
• Worked on writing scripts for moving user files on servers.
• Performed workstation and server installations and upgrades, standardized workstation configuration, automounter, sendmail, and hardware upgrades; administration support and troubleshooting duties in a 24x7.

Confidential, NY

Linux System Administrator

Responsibilities:

• As an Open System Administrator my duties included supporting Linux System Administrator customers with RHEL/SUSE a combination of systems architecture, systems development, Unix/Linux operating system lifecycle development, technical assessments, implementation administration, regression process development, SAN support from a directory standpoint, technology scaling, server builds, migration and/or transition planning, project planning, standards validation/development, technical documentation, presentation to management, training and mentoring of more junior staff and troubleshooting and problem resolution.
• Configuring and Administering NFS, DNS, NIS, NIS+ and LDAP on Solaris server environment.
• To provide ongoing support in systems management and administration of LINUX/UNIX in global-scale environment.
• Provisioning and support of Production, QA and Developers environment.
• Deployment of UNIX / Linux, VERITAS and Build of various environments.
• Provide rotational on-call Tier III support responsibilities. Production Support: Provided 24x7 supports for Confidential and resolve all production issues in a high pressure and time sensitive environment.
• Developing scripts in PERL and SHELL to automate the process.
• Disaster Recovery and Change Management: Designed and implemented disaster recovery solutions such as clusters using Veritas Cluster server for storage replication and to allow seamless failover of IP on the DR site.
• Weekly meeting to discuss change management, datacenter and infrastructure approvals/issues.
• Server Optimization and Workstations Consolidation: Monitored health of servers and implemented customized solutions where applicable as well as provide reports on server utilization. Standardization, Documentation and Processes: Created run books for global consistency and streamlined and enforced processes to improve efficiency and accountability.
• Handled installation and configuration of Linux MTAs - (Sendmail, Postfix and Axigen).
• Provided technical support for clients and application development teams.
• Prepared Bash Scripts for Automation of Server tasks. Extensive development of maintenance scripts to monitor system status, providing web-based, e-mail notification of system problems such as security breaches, loss of network connectivity, mail queues, user activity, disk allocation, and application availability.
• Preparation of operational testing scripts for Log check, Backup and recovery and Failover. Creation and implementation of shell scripts to take care of DB backup, monitoring alert log and log rotation reports.