SUMMARY:

• Around 8 years of demonstrated Systems Engineering and Administration experience in planning, installing, migrating, configuring, performance management, system recovery, network administration and supporting IBM AIX 7.1,6.1,5L,4.x, Solaris 8/9/10, HP - UX11i, Suse Linux9,10 and Linux (RHEL 4.5,5.3, 5.6),
• Expertise in configuring and maintaining NIM environment for client install, upgrades, backup and recovery, NIMADM, creating lpp source, spot, mksysb, image data and bosinst data NIM resources.
• Experience in dual VIO (Virtualization) server setup and upgrade, install VIO clients using VSCSI, AME, NPIV and setup (SEA) Virtual Shared Ethernet Adapter.
• Experience in installation, configuration and maintenance of IBM PowerHA 5.5 / HACMP V5.4
• Extensive experience with PowerVM, micro-partitioning, LPAR, DLPAR, installing and upgrading HMC.
• Experience setting up NIM servers for AIX, Kickstart servers for RHEL and Custom Jumpstart servers for Solaris installations.
• Planning and upgrading AIX Technology Levels (TLs), hardware and system firmware.
• Experience with various backup tools in RHELinux, AIX and Solaris using dump, restore, cpio, tar, ufsdump and ufsrestore.
• Experience installing and configuring RHELinux 5.x and Suse Linux 10 on HP Proliant Servers.
• Install, upgrade and configure of TSM clients for Tivoli Storage Manager Server (TSM) backup solution and HP Open View (HPOV) monitoring tool on AIX, RHEL and Solaris Servers.
• Experience supporting configuration of multiple application servers including IBM WebSphere Application Server (3.5/4.0/5.0), Weblogic, Apache Web Server and IBM HTTP Server.
• Install and configure DHCP, DNS (BIND, MS), web (Apache, IIS), mail (SMTP, IMAP, POP3), and file servers
• Successfully installed and configured IBM Web Sphere, DB2 and Oracle9i.
• Working knowledge of VMWare.
• Experience providing 24x7 ONCALL support for mission-critical environments.
• Implementing changes by following change management process during maintenance window.
• Responsible for performing all tasks with expectations and to meet service level agreements (SLAs) of customer.

TECHNICAL SKILLS:

Operating Systems: AIX 4.3/5.1/5.2/5.3 ; Sun Solaris 7, 8, 9 & 10HPUX,10.x/11.xVMware 3.5/4.1, Linux Red Hat 3/4/5/6

Monitoring Tools: Nagios, Munin, Cacti.

RDBMS: Oracle, MySQL

Language: HTML, C/C++, Java Script, SQL, XML, Bash, Python & Shell Scripting.

Virtualization: VMware and Vsphere.

Networking: TCP/IP, UDP, LAN, WAN, NFS, NIS, LDAP NIS+, DNS, DHCP, NAS, SAN.

WORK EXPERIENCE:

Confidential, Aurora, CO

Linux/Unix Administrator

Responsibilities:

• Installation, configuration and Operating System upgrade on, Red Hat Linux 3.0, 4.0, AIX 7.1,6.1 and Sun Solaris 8, 9, 10
• Administrated server consolidation program through use of VMware ESX server and VMware Virtual Center
• Performance Management & Tuning of RHEL.
• Veritas File system and Veritas Volume Manager 2.5 are used to configure the RAID 1 and RAID 5 Storage Systems
• Implemented NIS and NFS for administrative and project requirements.
• Installed and Configured Web and investigate the configuration changes in the production environment.
• Responsible for multicasting of various components as a system administrator.
• Worked closely with database administration staff to ensure optimal performance of databases, and maintain development applications and databases
• Monitoring system resources, logs, disk usage, scheduling backups and restore
• Set up Quotas for the user accounts & limiting the disk space usage.
• Modifying user’s password policies, group policy, UID and GID assignment policies.
• Monitored the performance of the system using top, sar, ps, prstat, vmstat, netstat, iostat, and cpuinfo to check the CPU utilization, bottlenecks of I/O devices,, memory usage and network traffic.
• Troubleshoot network connectivity used ping, netstat, ifconfig, and trace route commands. Login to the remote system using sudo, putty, and telnet. Transfer files across the systems on the network used ftp, scp, and rsync commands.
• Experience managing various file systems using LVM and SVM and also configured filesystems through network using NFS, NAS, SAN methodologies and installed RAID devices.
• Resolve VTM (Vulnerability Threat Management) tickets generated by QualysGaurd for security risk, policy compliance and application security for AIX, RHEL, Suse Linux and Solaris Servers.
• Linux technical support and prepared technical documentation for check in verification.
• Regular backing up of critical data and restoring backed up data. Worked in solving tickets issued on day to day activities and problems related to development and test servers.

Confidential

Linux/AIX Administrator

Responsibilities:

• Imaged, configured and managed enterprise wide RHELinux 4.5, AIX 4.x, 5L, 6.1 and Solaris 9, 10 servers.
• As a Linux administrator was responsible for providing 24x7 support for production and responding to users’ tickets from remedy.
• Administered Network File Systems using Automounter and administering user and OS data files in NIS and NFS environment on both Redhat Linux and Solaris environments.
• Installation and Configuration of Redhat ES, SLES 9, 10 servers.
• Installation, configuration and management of Apache and Tomcat servers.
• Upgraded and maintained servers, operating Systems and patches.
• Install/configure/maintain the Solaris / Linux servers, NIS, DNS, NFS, Mailing List, Send mail, apache, ftp, sshd.
• Performed TCP/IP, DNS and DHCP administration.
• Setting up Oracle 10g server in Linux/Unix environment.
• Configured and administered RHEL 5.4, Solaris server virtualization using Zones.
• Setup and configured standby instance of AIX OS using multibos utility for fallback.
• Decommissioned AIX 4.3, 5.1, 5.2 and 5.3 servers.
• Maintained and monitored all of company's servers’ operating system and application patch level, disk space and memory usage, user activities on day-to-day basis.
• Monitored and fine tuning system and network performance for server environments running Solaris, Redhat Linux.
• Troubleshoot various systems problems such as application related issues, network related issues, hardware related issues etc.
• Experience managing various file systems using LVM and SVM and also configured filesystems through network using NFS, NAS, SAN methodologies and installed RAID devices.

Confidential

AIX Administrator

Responsibilities:

• Installed and managed several IBM RS/6000 and e-server p series AIX systems which include disk management, user management, network management, performance management, test and development projects running on AIX 4.x
• Analyze system performance, client-to-server traffic, and server-to- server traffic.
• Configured and managed NIS environment for OS upgrade of remote servers.
• Managed Logical volume and Paging space and file systems.
• Set up Tivoli Storage Manager (TSM) for backup automation with policies configuration for Web based databases, setup consisted of server and client backup with progressive backup methodology. Administered the TSM for day-to-day scheduled tasks.
• Helped configuring the Tivoli managed nodes and Sysback/6000 on RS/6000 servers.
• Defined and setup Network/Local printers, and install client/server applications. Define/setup network protocols, Network File Services (NFS) and Network Information Services (NIS).
• Systems administrator support for production and development systems. Environment consisted of multiple IBM RS/6000’s and X-Window terminals.
• Administration responsibilities include user, group, disk, printer and security management, File sharing Permissions.
• Installation and administration of peripherals.
• Security, users, groups’ administration and daily backup and restore operations, networking service, performance, and resource monitoring.