SUMMARY

• Seven years in Server and Application Administration with expertise in IT Infrastructure Management, Network Management, System Administration and Technical Support. Proficiently skilled in Red - hat Enterprise Linux, Solaris, AIX, VMware, VSphere, VSAN, Nagios, IBM TSM, AD Likewise/Powerbroker, Veritas clusters, storage and HA, VSAN & SAN
• System Administrator with around 7+ years of experience at various technical levels in IT, experienced in Linux Administration (RHEL, Centos & SUSE ), OEL, Shell scripting, High Availability with Financial, Energy and production support in Data Center Environments.
• Involved in Server upgrades, Patching & Migrations activities on RHEL servers. Proficient with Installation, configuration and managing RedHat Satellite Server and Sun Update Manager
• Involved in linux Server builds in Physical and virtual platforms. Profient in Pre and post build activities.
• Extensive experience with the installation and configuration of Redhat 4/5/6/7 using Kickstart and Solaris 8/9/10 through Jumpstart.
• Experience in Virtualising servers using VMWare ESX 3.5,4.1,5.x and also using vCenter, vSphere to manage ESX servers. Experience in enabling and maintaining Virtual SAN. Performing health checks and host down recovery.
• Involved in support and maintenance of HP proliant servers G1,G4,G5,G6,G7,G8, HP blade systems and HP DL servers and Dell Power Edge Servers. Experience in working with HP Onboard Adminstrator.
• Installation, configuration, maintennece and implementation of Nagios in a multi-datacenter environment (Core, XI) and proficient in Nagios log server and Nagios incident manager.
• Troubleshooting DNS issues using DNS utilities like nslookup, Dig etc.
• Extensive volume management using Redhat LVM, Veritas Volume Manager 4.x/5.x and Solaris Voulume Manger.
• Experienced in installation and administation of Apache 1.3.x, 2.2.x and installation of WebLogic 8.x, 9.x, 10.x application servers and Oracle database servers.
• Experience in developing custom scripts using Bash to automate jobs.
• Experience configuring SAN devices like EMC and Hitachi and Virtual SAN.
• Experience supporting Clustered environemnts like Redhat Clustering and Veritas Clustering.
• Experience in working AD authentication services like Likewise/Powerbroker and LDAP.
• Integral member of Production Infrastructure Redesign and Deployment team delivering highly reliable/available/serviceable systems
• Familiar with Round-robin load balancing & NetScaler.
• Involved in analysis, planning, system design, implementation, performance monitoring, OS tuning, security, capacity planning, hands-on-implementation and management of corporate system infrastructures.
• Experience working with scheduling tools and softwares like at cron, ControlM and Maestro.
• Experience with working with high end servers like Dell Poweredge, HP Proliant, Itanium, PA-RISC, Cisco UCS & Sun M5000, T2000 .
• Excellent verbal and written communication skills and strong analytical and problem-solving ability.
• Highly proficient in project co-ordination, setting up bridge calls or iterations and addressing Charge Advisory Board for Test, PROD envirinments.

TECHNICAL SKILLS

Operating System: RedHat Enterprise Linux 2.1, 3, 4.x5.x,6.x, SUSE 9,10&11, CentOS 5.x, 6.x, 7, Solaris 9,10

Hardware: HP ProLiant servers BL Gen 4,5,6,7,8; HP Onboard Administrator, HP Blade center, Cisco UCS C200, C250, Sun Fire 6800/4810/4800, Sun Enterprise 10000, Sun Fire F15K, Sun Fire 25K, T2000, M5000,SPARC sun4c/sun4u, IBM RS/6000, pSeries

Disk Management: LVM, SVM, VCS 3.x/4.5

Configuration Management: GIT

Databases: Oracle, MySQL, IBM Maximo

Monitoring tools: Nagios, ITCAM

File Systems: UFS, VxFS, ZFS, ext, ext2, ext 3, ext 4, ReFS, Xen virtualization

Networking: TCP/IP, NFS, DNS, NIS, Switches, Hubs, and Routers

Backup: IBM Tivoli Storage Manager, Netapp

SAN: EMC, Hitachi

Ticketing Tools: Service Now, BMC Remedy, Request Tracker

Desktop Applications: MS Office, Outlook, Skype, Winscp, Fugo, Maximo

PROFESSIONAL EXPERIENCE

Confidential, NJ

Sr. System Administrator

Responsibilities:

• Involved in Server remediation and OS level patching of 3000+ servers individually in all environments including test, dev, DR and Production.
• Involved in providing technical support to Middleware teams, Database teams, Application testing and production support.
• Involved in providing everyday support to 5000+ Redhat Enterprise Linux servers on virtual, AWS and physical platforms
• Experience in virtualization on RedHat with x86 architecture and also using Zones, Domains
• Proficient experience in using and configuring Redhat Satellite servers, Yum repositories and troubleshooting activities.
• Involved in OS upgrades, firmware upgrdaes and patching on RedHat Enterprise Linux
• Experienced in Installation, configuration, maintenance and troubleshooting of HACMP 5.4, 5.5, and PowerHA 6.1
• Configuration management including the building of LPARs and configuring the hardware devices that support them.
• Involved in setting up cluster environments like Veritas Clustering 4/5/6 and storage foundation; Also highly worked on upgrading Veritas clusters.
• Involved in support and maintenance of HP proliant servers G1,G4,G5,G6,G7,G8, HP blade systems and HP DL servers and Dell Poweredge Servers. Diagnosis and maintenance of hard ware issues involving single and multiple point failures. Proficient working experience with vendors like HP, Oracle, Dell, Veritas and Redhat for troubleshooting issues.
• Installed and configured DNS Server for training and Configured DHCP.
• Involved extensively in virtualizing and managing them using VMware and VCenter Vsphere. Involved in recovering OS from VM snapshots and working on Maintenance mode through VM console.
• Proficient in enabling Virtual SAN, storage policies, recovery and health check. Also worked in adding storage and in managing VSAN components.
• Installation and configuration of Nagios XI and Nagios log server and also involved in security auditing and tracking down vulnerabilities using Nagios log server
• Involved in integrating Nagios with other monitoring/alert solutions like splunk and customizing Nagios with infrastructure and application needs.
• Configuration and maintenance of Likewise/Powerbroker. Involved in user and access management and authentication. Involved in migration from LDAP to Likewise/Powerbroker.
• Involved in working with PAM service, registering new servers to Likewise/powerbroker and logging.
• Experience with various ticketing tools and currently using Service Now for everyday support.
• Actively involved in Change board meetings and responsible for creating changes and implementing them mainly in Production and lower environments. .
• Currently working on build activities which involves building Redhat Enterprise Linux 6 and 7 servers in both Physical and Virtual platforms and procedure documentation.
• Involved in creating snapshots and amazon machine images (AMIs) of the instances for backup and creating clone instances instances. Working experience with configuration and maintenance of Oracle DB, ASM grid, and cluster services.
• Proficient experience with Veritas cluster services for support and maintenance and High Avaliability services for Business critical applications.
• Extensive experience working with EMC power-path and Hitachi multi-pathing.
• Extensive experience and currently working on Installation, configuration and registration of IBM Tivoli Storage Manager. Involved in troubleshooting and support on TSM backup failure issues.
• Proficienct and extensive communicative experience in handling bridge lines, coordinating with various teams and implementing changes.

Environment: RHEL 5,6,7, SOLARIS 10, Centrify Active Directory tool, BMC & ESP Monitoring tools, Veritas Net back tool, DELL, HP Proliant DL-380 G4/G5, HP Blade systems, Oracle, IBM Tivoli, Service NOW, VMWARE VCenter, ArcSight Enterprise security manager(ESM), Change Management, Capacity, Performance, Testing, Shell Scripting(Korne& Bourne), Networking- (LAN, Ethernet, VLAN)

Confidential, Charlotte, NC

Linux/Solaris Administrator

Responsibilities:

• Involved in providing level-3 support to 1000+ Physical and 500 Virtual Linux (RedHat, CentOS, SUSE)
• Experience in Managing Kickstart, Yum Repository and RedHat Satellite servers.
• Responsible for installation, configuration and tuning of different Linux based servers.
• Responsible for administration, maintenance, upgrading, patching and monitoring of IT System and networks.
• Involved in creating and configuring Zones/Containers, zfs filesystems in Solaris 10 environment.
• Responsible for installation, configuration, management and administration of Red Hat Clusters.
• Involved in planning and designing of Cluster System.
• Involved in composing manifests and customized facts and their deployment through puppet.
• Installed and configuring Nagios and involved in monitoring servers through Nagios Incident manager and BMC.
• Involved in creating customized dash boards and notification preferences and deploy setting to users using Nagios XI.
• Installed, Upgraded and Maintained RedHat Linux 5/6 using kickstart on Cisco UCS, HP C700 Blades, IBM BladeCenter HS20, IBM xSeries.
• Used Kickstart for network installation of OS, cloning, and full automation using FTP/SFTP.
• Installed and maintained central Syslog server for managing logs of other servers in the network, also responsible for clearing old logs using Logrotate.
• Installed and configured Oracle, MySQL & Java based Applications on Linux servers.
• Responsible for creating and modifying user accounts and managing user disk quotas.
• Implementation of naming services like DNS using BIND and NIS.
• Configured networking and SAN on Linux servers.
• Installation and Configuration of Oracle 10g/11 & RAC on Linux Servers.
• Involved in designing and maintenance of networks.
• Responsible for corporate level auditing compliances like system security, network security and installation of recommended patches.
• Involved in managing the company’s hardware and all set-up issues.
• Performed routine maintenance and user file backups.
• Setup and configured VMware for multiple OS.
• Involved in hardware installation and maintenance of workstations, servers, networking equipment, and other supporting hardware.
• Involved in troubleshooting any reported problems.
• Responsible for taking system backup and restore.
• Was responsible for providing support on a 24/7 basis.

Environment: s: Red Hat Enterprise Linux 4/5.x/6.x, CentOS, SUSE, Oracle RAC, IBM BladeCenter HS20, Apache, JBoss, Squid, BIND, Red Hat Cluster, Postfix.

Confidential

Jr. Linux/UNIX Engineer

Responsibilities:

• Installation of Solaris 9, 10 operating systems on SPARC platforms.
• Created projects on Solaris 10 to tune the operating system for installation of applications
• Installing, administration and troubleshooting and debugging of Apache 2.x web server, which included tasks like creating virtual hosts, installing SSL certificates etc.
• Installation of WebLogic 9.x servers on Solaris and Linux servers and creation of domains using the web console.
• Worked on installation and administration of version control tools like RCS and CVS.
• Managing configuration files like httpd.conf, crontab in the revision control systems.
• Performance monitoring and tuning of the applications and OS using iostat, ndd commands.
• Experience in writing Java scripts and Shell scripts.
• Involved in implementing security on Solaris and Linux servers.
• Installation of patches on Solaris and Linux servers.
• Worked on CSM load balancer for taking server out of rotation
• Worked on cronolog in Linux servers for managing the logs of the web servers and performed automation using shell and perl scripts.
• Was involved in Change Control Management and documentation of the procedures.

Environment: Solaris 8, Solaris 10, Redhat EL 3.x, 4.x, Apache Web Server 1.3.x, 2.2.x, WebLogic 9.x, RCS 5.6, CVS 1.11.x, Sun T2000, v490, v890, 480R, Netra T12

Confidential 

Jr. Linux Admin

Responsibilities:

• Installation of Solaris 9, 10 operating systems on SPARC platforms.
• Extensively used SMF for service management for managing services on Solaris 10.
• Created Projects on Solaris 10 to tune the operating system for installation of applications.
• Performed volume management using Veritas Volume Manager 4.0
• Administered WebLogic 9 application servers which included installing SSL certificates.
• Troubleshooting on Sun Java System Web Server 6.0 and Apache 1.3.x web server on Solaris with experience in installing SSL certificates.
• Installation of Oracle 9i, 10g on the Sun servers running Solaris 10
• Performed tuning of the kernel parameters for the better performance of the operating system and tuning TCP parameters and analyzed performance of resources like CPU, Memory, Disk and swap using native commands like prstat, vmstat, sar, iostat, swap etc
• Patch and package administration for installation of patches as per the company policy and installation of packaged application
• Performed tasks on F5 load balancer like installing and renewing SSL certificates and bouncing servers with performance issues after taking them out of the server pools.
• User, Group management for all the UNIX servers
• Modifying/ Writing scripts in Bash and Korn shell for optimizing day to day administration
• Editing crontab in post - installation of Unix servers

Environment: Solaris 10, Redhat EL 3.x, 4.x, Apache Web Server 1.3.x, 2.2.x, Sun Java System Web server 6.0, Veritas Volume Manager 4.1, 5, BigIP F5, Oracle 9i, DNS, NFS, Sun T2000, M5000, v480, v880.