SUMMARY:

• Around 7 years of experience as a System administrator in Unix and Windows platforms with hands on experience in Sun Solaris (SPARC & x86), VMWare ESX/ESXi, Red Hat Linux, OEL, HP - UX and Windows environment.
• Hands on experience in systems setup, configuration, upgrade, maintenance, performance monitoring and troubleshooting on different UNIX platforms like Sun Solaris, Linux, HP-UX, and Windows system software and hardware as well as networking.
• Worked extensively on SUN SPARC & X86 platforms incluing Sun Fire V440, V120 and V480, V490, Sun Fire X4100, X4170, X4200, X4540, X4440 and X4500, Sun Enterprise Servers T5120, T5220, T5240, T3-1, T3-2, M5000 & M9000 servers as well as HP DL G4,5,6&7, HP Blade Enclosures C 7000, Dell PE 2600, PE 1900, PE 2800,, PE 2900, PE 2950, PV NX 300, HP and Lenovo Servers.
• Installing, upgrading and configuring SUN Solaris 7, 8, 9 and 10 on Sun Servers using Jumpstart, Flash Archives and Interactive Installation.
• Installing, upgrading and configuring OEL 4,5 & RedHat Linux 3.x, 4.x, 5.x, 6.x using Kickstart Servers and Interactive Installation.
• Experience working with HP Proliant DL 380 G3, G5, G5 & G6 and Cisco UCS HW UCS 200 & 300.
• Experience working with Configuration management softwares like CFEngine and Puppet.
• Experience in Virtualization by Zones configuration on Solaris 10 and also with VMWare ESX 4.1 in Linux and Windows Environment.
• Experience supporting J2EE environment and performed task slike installations and configuration.
• Expertise in RAID Configuration, Veritas Cluster Server, Veritas Volume manager, Logical Volume Manager and Veritas Net Backup.
• Experience supporting Apache on Solaris, HP-UX and Linux environemnts.
• Installed Apache and configured Virtual hosts and also experience applying SSL certs for websites.
• Efficiently implemented network file sharing by configuring NFS to share files and resources across the network.
• Experience supporting Oracle RAC Environemnt running on Linux and Solaris servers.
• Experience in taking flar archives of Solaris servers for DR exercises.
• Extensive Shell, Perl and VB scripting experience.
• Scheduling various cron jobs for backups, database, proprietary jobs using CRON and BMC Control-M and troubleshooting daily job problems.
• Experience with Virtual Memory and swap space on Solaris systems.
• File system tuning using Veritas File System (VxFS).
• Planned, documented and supported high availability, data replication,fail-over and fall-back Solutions using Veritas Cluster Server 5.0, 5.1 in SAN environment.
• Coordinated with SAN Team for storage allocation and Disk Dynamic Multi pathing. Worked on Various SAN Products like Net App, EMC Symmetrix, Hitachi data systems.
• RDBMS installation and support for Oracle, SQL Server, MySQL.
• Worked with Backup Team to Configure the Master and Client Backup servers Using Veritas Net Back up.
• Working Knowledge on Veritas Storage foundation (VSF) and Veritas Volume Replicator (VVR).
• Experience in Windows Domain Controller, Active Directory configuration, users and group creation and management, folder permissions, network sharing, backup and maintenance.
• Experience in setting up LANs and WANs.
• Configuration and maintenance of various routers, firewall and wireless access points such as Cisco, Sonicwall, Checkpoint, Meraki etc.
• Experience working in security protocls to performs transfers between servers using sftp and third party ftp tools.
• Sonicwall Certified Network Security Administrator.
• Effective leader, motivator and team player with excellent planning, coordination, time management, supervision and organizational skills.

Technical Skills

Operating Systems: Sun Solaris 7, 8, 9 & 10 (SPARC & x86), Linux Red Hat 3/4/5/6, AIX 4.3/5.1/5.2/5.3 , OEL 4,5 &6, HPUX 10.x/11.x, VMware ESX/ESXi 3.5/4.1/5, Windows 98/XP/Vista/7, Windows Servers 2000/2003/2008.

Hardware: Sun Fire V440, V120, V480, V490, V880, Sun Fire X4100, X4200, X4440, X4140, X4170, X4500, X4540 Sun Fire 2900, 4800, 6900, Sun Enterprise Servers T5120, T5220, T5240, T2000, T3-1, T3-2, M5000 & M9000, HP DL360, 580 G4, G5,&G6, HP C7000 & C60000 Blade Enclosures, IBM Blade center and Dell PE 2600, PE 1900, PE 2800,, PE 2900, PE 2950, PV NX 300, various HP and Lenovo Servers, Cisco UCS 200, 250, 300.

Tools: VERITAS Volume Manager, Veritas Cluster Server 4.1/5.0/5.1, VERITAS Net backup 5.1, Sun Cluster 2.x & 3.x, VMWare ESX

Languages: Shell Script, Perl

RDBMS: SQL, Oracle, MySQL

Networks: NIS, NFS, LDAP, DNS, Routers and Firewalls

Protocols: TCP/IP, FTP, SSH, SFTP, SCP, SSL, ARP, DHCP, TFTP, RARP, PPP, POP3 and SMTP

Storages: Netapp, Hitachi,EMC Symmetrix

PROFESSIONAL EXPERIENCE

Confidential, Philadelphia, PA

Linux Infrastructure Engineer

Responsibilities:

• Involved in configuration and support of Redhat Linux in production environment hosted in a 24x7 setup.
• Server monitoring and maintenance of the client’s production server (Linux).
• Installation and Configuration of Mail Server ( Zimbra ).
• Installation and Configuration of DNS and DHCP Servers running on Redhat Linux
• Virtualization Installed and Configured Linux VM’s on ESX servers.
• Troubleshooting the Network and Boot problems.
• Involved in supporting web services like Tomcat, Apache and Weblogic services.
• Managed a team of System Administrators who escalated the Weekly & Daily Backup Reports, recovery logs, User activity reports & monitoring Reports of Firewall Logs.
• Installed and supported J2EE on RHEL 5/6 servers and supporting Tomcat and Apache servers.
• As a Zimbra Messaging/Operational team responsible for architecture, design, testing and deployment of the mail servers and also implementing changes into the production environment in a predictable way.
• Client Server Monitoring through Nagios and shell.
• Maintaining and managing all servers, systems & Infrastructure and providing Uptime.

Environment: Linux 5.x/6.x, VMWARE, HP Servers, Netapp, Hitachi Storage, Nagios, Zimbra Mail Servers, .

Confidential

Solaris/Linux System Administrator

Responsibilities:

• Provided 24/7 on call support on UNIX Production Servers including Solaris and Linux as well as worked across multiple projects including data centre migrations.
• Experience in creating and building Images on Solaris using Flash Archive and ISO images on Linux servers (RHEL & OEL) on ESX servers.
• Installed, configured and maintained OEL & RHEL 5.x/6.x and Solaris 9/10 servers for production, staging and test environments.
• Installing ESXi on Cisco UCS and HP Proliant HW and creating VM’s to deploy RHEL and Solaris ISO’s.
• Worked actively in migrating Solaris 9 servers to Solaris 10 and Redhat Linux servers.
• Installed Patches/Packages on Solaris Servers and RPM packages on Linux Servers and Deports/Bundles on HPUX servers running on PA-RISC and Itanium HW..
• Installed and configured VxVM, VxFS and VCS on various Servers.
• Administered, maintained Red Hat 4.0, 5.0 AS, ES, troubleshooting hardware, operating system, applications & network problems and performance issues.
• Supported Apache webservers running virtual hosts.
• Experince in creating Solaris 8 and Solaris 9 Branded Zones on Solaris 10 Global Zone.
• Experience installing Linux (OEL & RHEL) using ISO images on VMWare Environemnt.
• Deployed latest patches for, Linux and Application servers, performed Red Hat Linux Kernel Tuning
• Worked on building Veritas Clusters from scratch and performed failover and High Availability tests.
• Built M5000 and M9000 backend servers, configured lPMP, dedicated Replication networks.
• Worked with network team in configuring the correct VLANs for front-end, mid layer and Back-end servers.
• Linux kernel, memory upgrades and swaps area and performed Red hat Linux Kickstart installations.
• Installing and configuring OSWatcher tools to gather data on disk utilization, CPU utilization, operating system and other applications.
• Installed CFEngine clients on Linux and Solaris servers.
• Working with Vendors such as Oracle and Symantec as and when necessary to trouble shoot server issues.
• Installed approximately 800 Virtual/Physical servers in Solaris/Linux.
• Worked with SAN team on the provisioning of storage for the new build server and mounting the SAN and NFS storage to the filesystems with right permissions.
• Used VERITAS Volume Manager for Disk Space management.
• Applied patches and application update using CFEngine on Linux and Solaris servers.
• Installed and configured Sudo accessfor users to access the root privileges.
• Integrating UNIX file systems using packages like SAMBA.
• Troubleshooting technical problems received through e-mail and BMC Remedy Ticketing Tool. Performing QA and Production changes following the Change Management procedures, generating reports.
• Monitoring the servers using nagios enterprise-wide and work on any system alerts generated by the tool. Work on the tickets assigned by Site Operations team and involve application/other teams as and when necessary.

Environment: Solaris 9/10, Linux 5.x/6.x, OEL 5, VMWARE, SUN SPARC/X86 Servers, Dell/HP Servers, Netapp, Hitachi Storage.

Confidential, Arkansas

Linux/Unix System Administrator

Responsibilities:

• Installed and configured RHEL 4.x/5.x, Solaris 8/9/10, Windows 2003/2008 for production, staging and test environments.
• Configured Zones, Containers and branded zones on Solaris 10.
• Building LDoms on T5220, T5120 and T5140 servers.
• Configured File Systems using ZFS/vxfs/svm for Oracle Databases.
• Involved in troubleshooting of UNIX technical problems received through e-mail and Clarify Ticketing Tool, Backup solutions according to the SOP & SLA. Generating reports, Preparing Quality Documentations & uploading to VSS tool
• Installation and configuration of Windows 2003/2008 including Active Directory Services, IIS, DHCP on several Dell and HP servers.
• Installed Application Agents on 1500 Virtual/Physical servers in windows 2000/2003/Linux/Solaris.
• Configured devices by using HDLM software from Hitachi SAN.
• Setup of full networking services and protocols on Solaris, including NIS/NFS, DNS, SSH, SFTP, DHCP, TCP/IP, applications, and print servers to insure optimal networking, application, and printing functionality.
• Administered, maintained Red Hat 3.0, 4.0, 5.0 AS, ES, Troubleshooting Hardware, Operating System. Application & Network problems and performance issues; Deployed latest patches for Sun, Linux and Application servers.
• Disk Space management using VERITAS Volume Manager.
• Configuration of Hardware and Software RAID. Disk replacement and File system recovery.
• Implemented Virtualization using VMware. Installed VMware ESX/ESXi server on Cisco/HP/Dell Servers and configured Solaris 9/10/ Red Hat Linux 4.0 / Windows 2003 virtual machines for various applications.
• Installing and setting up Oracle9i on Linux for the development team.
• Installation of software packages and checking the integrity of the installed packages. Installed different RPM Linux 4.0/5/0.
• Administered Linux servers for several functions including managing Apache server, mail.
• Installed and configured Sudo for users to access the root privileges.
• Integrating UNIX file systems using packages like SAMBA. Setting up printers on UNIX / NT machines to work seamlessly across platforms.
• Worked with different hardware and software vendors to troubleshoot the hardware and software problems.
• Responsible for backup and recovery of servers.Documented backup policies and procedures for backup routines, schedules and restore policies.
• Managing cron jobs, at Jobs, batch processing and job scheduling.
• Support and detailed troubleshooting of Sun Solaris in a 24 x 7 Environment.

Environment: Solaris 8/9/10, Linux, VMWARE, SUN SPARC workstations (A21, A22, A70, A89),NFS, NIS, DNS; IBM 8677, IBM Blade center Servers (HS20, HS21), Lenovo Workstation’s (D2, D3, D10, D20), IBM P520, P550, P560, P570, P575, P595, IBM IntelliZpro-9228, DELL Poweredge 1650,2850,2950,6400.

Confidential, Irving, TX

Solaris/Linux Administrator

Responsibilities:

• Involved in configuration and support of a production environment hosted in a 24x7 setup.
• Installation and Configuration of Solaris, Linux and Windows/NT operating systems on large distributed environment.
• Managing Disks/Filesystems using Veritas Volume Manager.
• Setting and Managing NFS, NIS, DNS, Shell Scripting, patching.
• System performance tuning, User maintenance and security.
• Scheduling Backups, Monitoring & taking failover test of Veritas Clustered servers.
• Trouble shooting and problem resolutions in SUN, Linux and AIX servers.
• Procedural documentation of supporting applications as well as SLA and escalation policies to coordinate with the monitoring systems as deployed.
• Responsible for first and second level problem analysis, and resolution for system and application tools utilizing already existing Unix scripts and Windows run books.
• Installation and support of various versions of Oracle, SQL Server and MySQL databases.
• Used various networking tools such as ssh, telnet, rlogin, ftp, sftp and ping to troubleshoot daily networking issues.
• Ability to screen and diagnose client inquiries and problems; troubleshoot to clearly understand problems (root cause determination), solve problems, use operational documentation (runbooks).
• Responsible for administering and maintaining Linux work stations running Apache web server.
• Installed and configured SSH, SFTP, NDM, EMC Power path, Veritas Dynamic multipathing, Oracle client.
• Expertise in Linux backup/restore with tar including disk partitioning and formatting.
• Managed email (Postfix and Sendmail), LDAP and Oracle services.
• Work with developers to integrate their web applications onto standard infrastructure.
• Writing scripts for monitoring log files and sending alerts.
• Involved in the Recovery of the Unix servers.
• Installation of SAMBA utility software.

Environment: Solaris 8/9/10, Red Hat Linux 4.x/5.x, AIX, BMC Patrol, NetBackUp, MQSeries 5.0 WebLogic 6.1, NES/iPlanet4/6. SUN Solaris, E250, E10K, E4500, SunfireV880/440, Windows, Solstice Disk Suite 4.2.1,, EMC Centera; EMC Connetrix, SAN Switches, Tape Libraries, EMC Powerpath 4.0,Sun Storage Array NAS and SAN, Sun Disk Suit and MySQL 5.

Confidential, Richardson TX

Solaris/Linux System Engineer

Responsibilities:

• Installation and configuring of SUN Solaris and Linux servers .
• Involved in Building and configuring Solaris 8/9/10 using Jump start server and Red Hat Linux Servers Using Kick Start server as required for the project.
• Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA, Staging.
• Primary responsibility includes building and supporting Solaris/ Red hat Linux 3,4 servers.
• Extensive use of Veritas Volume Manager for Disk management, file system management on Sun Solaris environment.
• Installation and configuration Veritas NetBackup on Sun Severs.
• Extensive use of Korn shell,Bash for scripting.
• Expertise in Linux backup/restore with tar including disk partitioning and formatting.
• Involved in Planning, building and Administration of various High Availability clusters and heart beat checking on Sun Solaris using VCS in heterogeneous SAN environment.
• Regular disk management like adding / replacing hot swappable drives on existing servers/workstations, partitioning according to requirements, creating new file systems or growing existing one over the hard drives and managing file systems.
• Planned, scheduled and Implemented OS patches on both Solaris & Linux boxes as a part of proactive maintenance.
• Worked with other IT teams including Database and Network Teams, customers (users), and other managers in helping build and implement systems and standards.
• Involved in migration of projects from one flavor to another one.
• Involved in development, user acceptance, performance testing, production & disaster recovery server.

Environment: Solaris 8/9, Red Hat Linux 4/5 NAGIOS, Veritas NetBackup, Korn Shell, Bash Scripting, Veritas Volume Manager, web servers, LDAP directory.

Confidential

Unix/Windows Administrator

Responsibilities:

• Installing, configuring and upgrading Solaris 7/8 and Windows Servers.
• Installing and partitioning disk drives. Creating, mounting and maintaining file systems to ensure access to system, application and user data.
• Scheduling the daily/weekly/monthly backups.
• Patching up the system to the latest version as per the recommendations.
• Monitor the health of the servers, Operating system, database and the network.
• Maintenance of Hard disks (Formatting and Setup, Repair from crashes).
• Installing & administering NFS services using automounter.
• Maintaining appropriate file and system security, monitoring and controlling system access, changing permission, ownership of files and directories, maintaining passwords, assigning special privileges to selected users and controlling file access, monitoring status of process in order to increase the system efficiency, scheduling system related and cron jobs.
• Installation of Oracle databases 8i/9i.
• Build and maintain windows 2000 and 2003 servers.
• Worked on migrating from windows .
• Managed windows servers, configured domain, active directory; created users and groups; assigned permission to the groups on the folders.
• Setup LANs and WLANs; Troubleshoot network problems. Configure routers and access points.

Environment: SUN Solaris, Windows 2000 & 2003, Sun Enterprise servers E4500, E3500 and E250 SunFire V480, Sun Ultra Sparc 5/10, Sun Blade servers, Oracle 8i/9i, NFS, BMC patrol and HP OpenView Servers, Intel based Servers, LAN and WAN.