SUMMARY

• Over 8+ Years of experience in Red Hat Linux / Solaris, Unix Administration on Sun, HP Servers for Mission Critical and Enterprise applications.
• Extensive experience in installation, configuration and administration in physical/virtualized Linux/Solaris/AIX environments.
• Installation, Configuration and Maintenance of Samba, Apache Tomcat, Web Sphere and Jboss servers in Sun Solaris and Linux environment.
• Configuration, implementation and administration of NFS, NIS, DNS, and Sun Cluster and LDAP on Solaris and Linux environment.
• Ability to perform firmware and operating system patching.
• Expertise in creating and managing Logical Volume Manager in RedHat Linux.
• Work on tickets on various severity levels and prioritize emergency issues raised by operations, project teams and resolve them quickly and tan investigate on teh root cause and put a permanent fix and get an RCA (root cause analysis) report out.
• Experience in administrating ESXi servers and applying security patches to teh ESXi servers.
• Expert in ESXi servers using teh Vsphere client and Vcenter for managing teh multiple ESXi servers and performing teh vmotion.
• Experience on backup and recovery software like Veritas Net backup 5.1 and 7.5 on Linux environment.
• Maintained high availability of data using MC/Serviceguard, VERITAS cluster Server and Sun Cluster.
• Experience in various file system management using VxVM, SVM, LVM and ZFS; and RAID configuration.
• Experience wif automation and configuration management tools such as Chef, Ansible, and Puppet.
• Experience in writing Shell scripts using ksh, bash, and perl for teh process automation of databases, applications, backup and scheduling to reduce both human intervention and ma hours.
• Worked on Linux based systems administration skills in a Cloud Computing and Virtualized environment for AWS.
• Implemented and managed Splunk monitoring and reporting infrastructure
• Expertise in AWS, experience in implementing new AWS systems and migration of existing systems to AWS.
• Good understanding of error logging subsystem and Performance Monitoring tools like vmstat, iostat, netstat, topas, and lparstat on Linux/Solaris/AIX operating systems.
• Knowledge of Routers, Switches, Hubs, Firewalls, LAN, WAN Intranet, Internet.
• Experienced in Monitoring system Access and Monitoring servers by using tools like Tivoli, Check MKand Nagios.
• In depth noledge of teh TCP/IP protocol stack.
• Strong problem solving and communication skills.
• Highly motivated, committed and a natural team player wif capability to work independently.

TECHNICAL SKILLS

Operating Systems: Red Hat Linux (AS/ES 3/4/5/6), Solaris 10/9/8, HP - UX (10.20, 11.00, 11.11, 11.23), IBM AIX (4.3, 5.1L, 5.3L), VMware ESX 4.X, Windows NT 4.0/2000/2003/ XP/vista Frame Relay, ISDN, PPP, HDLC, ATM, MPLS, Leased Lines, Cable modem

Hardware: Sun Fire 280R/V 480/4800/3800/12 K/15K, TSeries, MSeries Server, Sun Enterprise 6500/5000/450/420 R,, HP 9000 K,L,N class server, IBM RS/6000, pSeries, Xseries, HP/IBM/Blade Servers.

Protocols/Standards: RIP, RIP V2, EIGRP, OSPF, IS-IS, BGP, DNS, SMTP, SNMP, FTP, WEP and POP3.

VMWare: VMware Infrastructure Client and VMware ESX Server 4.x/3.x/2.x.

Storage: SAN EMC Symmetrix 800/ DMX1000, 2000 & 3000, EMC CLARiiON 500, 600, 700, NetApp NAS 2000/ 3000 series.

Databases: MySQL, PostgreSQL, SQLite, DB2, Oracle.

Automation Tools: Puppet, Chef, Kickstart and Jumpstart.

Cluster: Veritas Cluster Server, MC/Service Guard, Sun Cluster

Security: Monitoring Tools

Programming: SSH, SSL, IPchains, IPtables, Tcpdump, Wireshark, Tripwire, port scanners

Nagios, Cacti and Check Mk: Shell Scripting, Basic Pearl Scripting, C Language.

PROFESSIONAL EXPERIENCE

Confidential, Sanjose, CA

Unix/Linux Administrator

Responsibilities:

• Worked wif Storage Area Networks (SAN) which consisted of Hitachi and EMC storage.
• Involved in maintenance of systems including patching, setting up Print servers, Configuring File systems, using LVM/Veritas on Linux/Sun Solaris OS, involving SAN environment
• Add, remove and resizing Logical volumes using LVM in Linux and implementing software RAID at installation time.
• Regular disk management like adding/replacing hot swappable drives on existing servers, partitioning according to teh requirements, creating new file systems or growing existing one over teh hard drives and managing file systems and adding virtual swap space.
• Define/setup network protocols, Network File Services (NFS), and Network Information Services (NIS) in Linux.
• Write and publish Bash and Perl scripts to facilitate teh automation process and provisioning of a variety of Virtual Machines and Virtual Appliances, such as RHEL, CentOS and Debian.
• Installed and configured VxVM, VxFS and VCS on Linux Servers.
• Creating VM instances using VMware/ESX on Linux and Sun Servers and migrating applications from others servers.
• Configure and maintain virtual servers environment using VMWare ESX host, VCenter, VSphere.
• Configure and Implementation of Samba v3.0 to halp printing and file sharing in teh mixed environment.
• Maintenance level upgrades and software administration RPM installation on Linux using yum.
• Monitoring teh system performance using tools like Tivoli End Point, ESM and Nagios.
• Worked on Solaris 10 container technology, configured separate zones for various applications.
• Upgraded Solaris 8 to Solaris 9 and 10. Configuring SAN Sun Storage. Through Brocade Silkworm Switches. Fiber Optics Switch for redundancy wif multi-path.
• Acquiring & Initializing LUNs in clustered & standalone environments.
• Installation and configuration of Webserver (Apache 2.2.17), MySQL 5.5 and PHP in a LAMP stack.
• Management of Veritas Volume Manager (VxVM), Zettabyte File System (ZFS) and Logical Volume Manager
• Scripting and task automation using Corntab, Bash, and Korn shell scripting.
• Managed Control M Scheduling in Oracle to provide administrative level 2 support.
• Building, administering, monitoring and Troubleshooting RHEL4.x/5.x/6.x, HP BL460, DL 380 Dell and IBM XSeries.
• Responsible for building and configuring LAMP (L: Redhat, CentOs, Ubuntu; A: Apache, Nginx ; P:PERL and PHP M: Mysql, Oracle) and Java (Jboss) Web servers using for internally developed applications using established build standards
• Linux system backup administration/monitoring using EMC Networker 7.5.6. and Backup Exec 2012.

Environment: RHEL4.x/5.x/6.x,AIX 6.1, HP BL460, DL 380 Dell and IBM X Series, SAN, LVM, RPM, Tivoli End Point, BMC patrol, WebSphere, VERITAS Net Backup, Shell and Perl Scripting, BMC Remedy 8.1, 8.1.0x, ColdFusion 9, 11.

Confidential, Stlouis MO

System Administrator

Responsibilities:

• Initial post installation procedures for UNIX through internal script.
• Build different flavors of UNIX/LINUX clusters such as Standalone, SAP, ServiceGuard S2S, ServiceGuard local, CFS S2S, Oracle RAC and local Linux VCS HA Cluster S2S. Resolved ticketing issue during build process.
• Installations of post ignite for Unix/Linux using Ignite tool.
• Preparation and execution of servers for patching and upgrade on more than 10,000 servers.As team player I have contributed into quarterly maintenance of Unix/IT Infrastructure.
• On-call rotation every week.
• Creating Users/groups though automated script or manually and Setting up permission towards Security Environment.
• Configuring teh Hosts, DNS and NetConf file.Troubleshooting teh network, DNS and LDAP group's issues.
• Creating physical and Logical Volume management and mounting teh file systems.
• Implement tools like ILM, APS, SRPA, and VirtualSM to complete teh server build process successfully.
• Creating teh configuration file for new servers. Coordination wif SAN team to allocate SAN storage for servers and shared wif other cluster nodes.
• Automated routine jobs by using BASH and KORN shell Scripts.
• Firmware updates through LILO. Linux Kernel upgrades and swaps area using internal scripts.
• Analyzing teh new build using QA scripts for errors.

Environment: RedHat (2,3,4,5), VMware ESX 4.x and SUSE Linux, Solaris 8 / 9 / 10, Sun Enterprise Server, HP 9000 K, L, N Class Server, IBM Filenet P8, IBM RS/6000, pSeries Server, Windows 2003/2008 Server, NetBackup 5.0, Veritas Volume Manager 4.x/5.0, SAN EMC Clariion CX 700/ CX 600/ CX 500, EMC DMC 2000/ 3000, NetApp NAS 3000.

Confidential, Detroit MI

System Administrator

Responsibilities:

• Installed and administered 22 Sun Enterprise Servers (E4000/ E6000) running Solaris 2.5.1/2.6.
• Configured 4 Terabyte disk space under Veritas Volume Manager.
• Installed, configured and administered 2 Oracle 8.0.4 Instances
• Maintained 800 x 9Gb Hard Disks, 7.2 Terabytes of disk space.
• Configured and used Legato and SUN Netbackup Software for backup and recovery.
• Added and maintained hundreds of user accounts to NIS database.
• Configured and maintained NIS and DNS database.
• Wrote Korn/C/ sed shell scripts.
• Monitored teh TCP/IP network for network related issues.
• Setup network printers under UNIX.
• Documentation of all teh setup procedures and System related Policies.
• Raised, handled and closed multiple Change Management and Trouble Management tickets accordingly wif Standards.
• Performed and reported daily health checks for multiple application servers.
• Processing teh work request like build and deploying teh codes on UAT, Staging, and Production environments.
• Majorly lead in Unix-to-Linux Migration of BMC Remedy Applications and upgrading AR System 7.1 to 8.1.01. Personally installed Apache, Java, Oracle 11g, AR System, and Mid-Tier and migrated objects, data to AR System 8.1.01, and configured LDAP, AR Email Service, on cluster environment. Provided Post-Migration support for multiple Remedy Applications which involved deploying Emergency & Production Releases, monitoring services, fixing performance issues, installing security patches.
• Conducted Annual Disaster Recovery exercises for applications on different platforms.
• Worked wif Storage Area Networks (SAN) which consisted of Hitachi and EMC storage.
• Add, remove and resizing Logical volumes using LVM in Linux and implementing software RAID at installation time.
• Regular disk management, partitioning according to teh requirements, creating new file systems or increasing existing ones, managing file systems and adding virtual swap space.
• Define/setup network protocols, Network File Services (NFS), and Network Information Services (NIS) in Linux Environments.
• Installed and configured VxVM, VxFS and VCS on Linux Servers.

Environment: RedHat Linux, Solaris 9/8/10, HP-UX 11.0, VMware ESX 4.x, Sun Enterprise 450/420R/250 Servers, Ultra Enterprise 2/1 Servers, SPARC server 1000, SPARC server 20 Enterprise Servers, SPARC server 1000/20, HP 9000 K,L,N class server.

Confidential 

Junior System Engineer

Responsibilities:

• Installation, Configuration & Upgrade of Linux, Solaris, AIX, HP-UX, Linux operating systems.
• Experience in patching wif live upgrade/standard install cluster and applying firmware.
• Experience wif VMware Virtualization using ESX hypervisor of Vsphere 4.0.
• Configured Solaris Jumpstart Server. Maintained Server 6.0. Backup data of Servers using VERITAS Net Backup. Maintained Security of teh Solaris Servers.
• Performance monitoring and Tuning using top, prstat, sar, vmstat, ps, iostat etc.
• Shell Scripting to automate tasks on Solaris and Linux and automated jobs using Crontab.
• Configuration of VERITAS Cluster Server, Service Guard from teh scratch and maintained service group/packages for failover and redundancy purpose.
• Worked on cronolog in Linux servers for managing teh logs of teh web servers and performed automation using shell and perl scripts.
• Worked on high performance applications in a clustered environment.
• Involved in Implementing and Administrating enterprise level data backup and recovery.
• Implemented Backup solution for teh Network
• Installed and configured file and Application servers running on Sun servers
• Configuring and maintaining network services such as LDAP, DNS, NIS, NFS, Web, Mail, FTP
• Implementation of RAID 0/1/5 for creation of logical volumes using VERITAS Volume Manager in SAN Storage Area Environment
• Troubleshooting and analysis of hardware and software failures for various servers (core dump and log file analysis).
• Worked wif storage team to configure NAS.
• Managed Network troubleshooting applications TCP/IP including Ethernet, IP addressing & Sub netting, routing.
• Provided 24x7 on call and remote support for UNIX Production Problems and responding to users' tickets from Remedy.

Environment: RedHat Linux, Solaris 9/8/10, HP-UX 11.0, VMware ESX 4.x, Windows 2003/2008 Server, NetBackup 5.0, Veritas Volume Manager 4.x/5.0.