SUMMARY

• Over 10 years of experience as UNIX Administration in SUN - SOLARIS (11,10, 9, 8), RHEL 3/4/5/6/7, Windows, knowledge in computer hardware and I/O devices.
• Strong experience in System Administration, Installation, Upgrading, Patches, Migration, Configuration, Troubleshooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning on UNIX (SUN Solaris, Red Hat Linux)Systems.
• Involved in complete Administration tasks on UNIX (SUN Solaris, Red Hat Linux) and documentation for the projects executed.
• Installed, monitored and supported Web and Application Servers on Solaris and Linux environments And participated in migrating the environments and data center migration.
• Good knowledge on operating systems architectures.
• Strong technical background in Storage, Disk Management, Logical Volume Management (LVM) and logical partitioning.
• Experience in using VERITAS Volume manager. Creating new file systems, mounting file systems and un mounting file systems, Hands on experience in Tivoli Storage Manager (TSM).
• Experience in installation and configuration of Web Sphere, Apache, IPlanet, BEA Web Logic, LDAP, TAM(Tivoli Access Manager) and mail servers(SMTP).
• Extensive experience in Installation and configuration of Windows 2008, 2003, 2000, Active Directory on single or multi domain platforms.
• Creating and maintaining users, profiles, security, rights, disk space and process monitoring.
• Setup and configured network TCP/IP on SOLARIS including RPC connectivity for NFS. Created mount points for Server directories, and mounted these directories on Solaris Servers.
• Proficient in configuring Jumpstart and Kick Start servers to initiate installation of Solaris and RedHat Linux on several machines at once.
• Experience using diagnostic and debugging tools such as Dtrace, Strace, truss and Top.
• Worked on group/user administration, startup and shutdown scripts, crontabs, file system maintenance and backup scripting and automation.
• Working experience in Nagios network monitoring software administration tool.
• Highly experienced with Storage Administration like EMC SAN Administration, Hitachi, NetApp, NAS Administration, Veritas NetBackup and Legato.
• Experience working with Storage Area Network (SAN), EMC CLARiiON, EMC Symmetrix DMX, VMware.
• Experience in writing Shell scripts using ksh, bash and perl for process automation of databases, applications, backup and scheduling.
• Experience in Performance monitoring, usage and load of the system, changing kernel parameters for better performance, creating new Slices with format and creating huge Slices with Daisy Chains.
• Worked in environment containing Solaris zones/containers/LDOMS.
• Expert in setting up SSH, SCP, SFTP connectivity between UNIX hosts.
• Experienced in DNS, NIS, NFS, NSLookUP, Snoop FTP, NIS, Samba Server, LDAP, remote access, security management, and system troubleshooting skills.
• Extensive working knowledge on Role based Access control (RBAC) and Role Based Security.
• Build and configure complex clustered environments using Solaris 10, Veritas Cluster with shared storage configured from Netapp arrays. Measure and analyze host and storage behavior during injected faults.
• Proficient in System Backup and Recovery from tapes using ufsdump, ufsrestore, tar and cpio.
• Performance Monitoring & Tuning - iostat, vmstat & netstat, nfsstat.
• Experience configuring Firewall and security using SSL, KERBEROS, IPchains, IPtables, TCP Wrappers, Tripwire, and port scanners.
• Security compliance on the OS for SOX and internal audits.
• Experience in performing DBA tasks such as creating users, roles, tables, tablespaces, imports and exports for development of databases.
• Excellent client relation skills and the drive to complete tasks effectively, and efficiently where customer services and technical skills are demanded.
• Ability to communicate effectively with all levels of management, and the client community.
• Provided production support in an on-call rotation in a 24x7 environment.

TECHNICAL SKILLS

Operating Systems: Solaris8/9/10,11,Linux6/5/4/3,AIX5/6/7, Ubuntu, HPUX, Windows 2000/2003/2008/2012 R2 Server. Windows NT4.0, Windows 98/2000/XP.

Hardware: Sun Servers (E4500, E3500,M5000 and E450), IBM RS/6000, p520, p550, p570, p590, p595, p670, p690, Ethernet hubs, and switches.

Tools: Puppet, Chef, Jenkins, Veritas Netback up Admin Tool, Nagios, ORCA, SolarWinds, SubVersion, CVS, Git, Veritas GUILanguages Shell Programming, Bourne, Bash, Perl, Python Basic C/C++, SQL, PL/SQL, and HTML.

Databases: Oracle 8i/9i/10g,SQL Server 2005/2000,MS-Access,MySQL,PL/SQL, Mongo DB

Networking: FTP, TCP/IP, NIS, NFS, DNS, ALE, and BAPI.

Storage and Backup: Hitachi, EMC Vmax, NAS, Tivoli Storage Manager, VERITAS Net Backup, Avamar

Virtualization: VM Ware ESX/ ESXi, KVM, Xen, VMWare Vcloud Director, DockerWeb and Application Servers Web Logic Server 8.1/10.x, Web Sphere Application Server 5.0/6.x, Tomcat, Apache, Jira, JBoss, RabbitMQ

PROFESSIONAL EXPERIENCE

Confidential, Silverspring, MD

Devops Engineer

Responsibilities:

• Responsible for installation/configuration of Red Hat Linux 7/6 and, Centos 7.2,UBUNTU 12.10 on x86 architecture for both Physical and virtual machines.
• Installed Centos, Ubuntu, Citrix and created user logins, administering the system performance and monitoring user activities.
• Create catalogs and virtual machines as vApp templates in VMware vCloud Directory 5.0
• Configured Docker inorder to establish the continuous integration with all the various cloud/applications tools.
• Successfully installed OpenStack RDO and provided the machines to the customers. Managed and implemented changes, upgrades, security procedures and policies to the Linux servers.
• Administering and managing the file system management that includes SAN and NAS.
• Configured and managed the Citrix Web Interface for Citrix Remote access for the customer in order to access their servers.
• Worked on server decommissions and retiring the old physicals and Virtuals which were not in use and out of service.
• Worked with application/tools like Jira, Work front, SVN, Agile and Scrum methodologies.

Environment: HP Blade servers Proliant BL680c G7, DL 385, DL 585, RHEL6/7, Ubuntu, Citrix, Windows, VMWare Vsphere, VMWare vCloud Director, SAN, NAS, Git, Python, Nexus, Sonar, Stash, Docker, Jenkins.

Confidential, CHARLOTTE, NC

Unix Engineer

Responsibilities:

• Responsible for the pre-checks analyze each and every server configuration, doing the necessary configuration changes and software changes to support the EMC Symmetric migration from HDS.
• Worked on all kinds of configurations related to Solaris(Zones/VCS/SVM/VVM/ZFS) and Linux servers SAN migration is concerned.
• Installed Power path tools on Linux in place of multipath and HDLM, assigned new server profiles for EMC devices.
• Fixed the issues related to software /hardware/OS/application which aroused during the migration.
• Familiarity of working with internal and external vendors/customers for any problem reporting, escalation and working toward the resolution.
• Familiar with ITIL incident management, change management and configuration management of the production and QA environments.
• Involved in the debugging of problems related to LDAP/Site minder (SSO)/Likewise and AD authentication.
• Worked extensively on VERITAS clusters and actively participated in testing with the failover of the app servers between the nodes in VERITAS cluster using both GUI and command line interface before and after the migration.
• Worked extensively with HP Onboard Administrator, Virtual Connect Manager and ILO(Integrated Light Out's) to configure the Physical server and got the servers ready for the migration.

Environment: HP Blade servers DL 385 G1, G5, G6,G7, DL 360, DL 165,DL 145, DL 140,BL 380 G5,G6RHEL-5.x/6.x, Solaris 8, 9,10, ESX servers, Virtual Infrastructure Client, Redhat Satellite server, Sunfire V240/V440/V490,T2000,M4000

Confidential, Charlotte, NC

RedHat Support Engineer

Responsibilities:

• Perform administrative tasks on the team portal like adding users, creating and decommissioning Linux systems for various clients.
• Responsible for development, configuration and testing of Software Stack layer for cloud based services in support of DEVaaS, IaaS, DBaaS, TESTaaS and Private Cloud
• Worked on Subversion and updated the Subversion to make sure all the manifests are updated with the latest layered products for all the releases and making sure the latest manifests got imported to the cloud service portal.
• Attended the workshops for Puppet and involved in puppet labs as the next step was to implement puppet in place of the custom PCE portal.
• Perform security audit on completed builds as well as installing SSL certificates.
• Advise system designers and engineers to produce valid servers in an optimal way.
• Build scripts to automate and expedite the handover to client.
• Patching the servers to the latest patches for RHEL as per Confidential standards using HPSA and Manually as well.
• Generating web certificates and middleware configurations to meet client needs.
• Involved in recycling the middleware products through CLI and HPSA and done the troubleshooting whenever needed.
• Worked with BoKs access control mechanism for Linux.
• Actively involved in vCenter migration as part of the vCenter server segregation portion of the project.
• Documenting all the standard procedures for existing process flows and workflows.
• Configured AnthilPro agents and ESKIT based on the Requests in the teams Ticketing queue.
• Plan and Deploying assigned projects, change management, on-call support, and hotline bridge participation.
• Administered User Permission and Web access in VMware.
• Performed Scheduled backups using Avamar and Netbackup.
• Extensively worked, installed, configured and documented Autosys and CA7 on linux servers
• Deployed, Manipulated and Migrated Virtual Machines from one Cluster to another cluster.
• Worked extensively on migrating physical machines to Virtual machines.
• Configured the SAN(Hitachi), NAS on the Physical blades and VMs respectively.

Environment: RHEL6.4, VMWareESX, VSphereClient, vcenter5.5, WEBSphere Application server 6,WEBSphere Process Server6, JBoss7.1.1, Apache HTTP Server 2.2.23, Tomcat 7.0.32, Web logic Server - Premium Virtual Edition 10 (10.3.6.0.1 ), Avamar, HPSA Client, Tortoise SVN.

Confidential, CHARLOTTE, NC

Unix/Linux system Administrator

Responsibilities:

• Installed,upgraded and configured Redhat EnterpriseLinux4.2,5.2,5.3,5.6&Oracle Unbreakable Linux(OEL)5.2on HP Blade serversusingHP Onboard Administratorandusingkickstart installation, and installed worked with Solaris 9 and 10 on Sun servers.
• Worked with ESX Server 3.5 & and upgraded to 4.0
• Plan andDeployingassigned projects, change management,on-call support,and hotline bridge participation.
• InstalledOracle 10g, 11gin Redhat,solaris8/10 and worked extensively withOracle Unbreakable Linux 5.2/5.3and configured Oracle Cluster ware File system.
• Configured cluster server onOracleUnbreakable Linux using multipath
• Extensively worked, installed and documented on Autosys and CA7 on both linux and Solaris servers
• Deployed, Manipulated andMigratedVirtual Machines from one Cluster to another cluster.
• Worked with VMware Infrastructure Components, Virtual Center, vSphereand Installing ESX.
• Installed ESX Server 4 and build Virtual Machines
• Worked on Cloning, Teaming, Networking and Virtual Switches and NFS Storages.
• Worked extensively on migratingphysical machines to Virtualmachines.
• Worked on Vmotion and Cold Migrations in Clusters withDRSandHA.
• Administered User Permission and Web access in VMware.
• Configured the proxy for up2date which directly connects to theOracle install Repository and personally built a local satellite server forour team.
• Worked extensively on VERITAS clusters and actively participated in testing with the failover of the app servers between the nodes in VERITAS cluster using both GUI and command line interface before the application go live.
• Worked with LDAP authentication and implemented LIKEWISE AD authentication and migrated linux and Solaris servers from LDAP to LIKEWISE.
• Configured the SAN(Hitachi) on the Physical blades
• Worked extensively withHP Onboard Administrator,Virtual Connect Manager andILO(Integrated Light Out's) to configure the Physical server and got the OS build on the servers
• Configured Tivoli Storage Manager(TSM) on the servers andTivoli Data Protection (TDP)for Oracle on Linux and Solaris.
• Plan andDeployingassigned projects, change management,on-call support,and hotline bridge participation.
• Migrating Linux boxes from CentOS and Redhat 4.x to latestkernelof Redhat 5.x.
• Upgraded the samba to version 3.5 on all the linux and Solaris servers and configured the new versioned samba on the new servers. And extensively worked on Kerebros authentication.

Environment: HP Blade servers DL 385 G1, G5, G6,G7, DL 360, DL 165,DL 145, DL 140,BL 380 G5,G6RHEL-5.2/5.3/5.6,Oracle Unbreakable Linux 5.2/5.3/5.6, Solaris 8, 9,10, ESX servers, Virtual Infrastructure Client, VMware vSphere, Satellite server, Oracle 10g, 11g.

Confidential, Pittsburgh, PA

Sun Solaris system admin

Responsibilities:

• Installed and configured of hardware and OS on Servers, Workstations and I/O devices on Sun hardware.
• Monitor, troubleshoot and administer of SUN Servers, Linux and HP-UX.
• Creating Jumpstart image for Solaris 9 and 10 and configuring new Linux servers and also installed Solaris 10 using Flash Archive, updated clone system with a differential Solaris flash Archive..
• Worked in a fast-paced 24x7 production environment comprising Sun, IBM.
• Installed configured, managed the ACL’s around the CVS, Subversion (SVN) repository and also responsible for back-up recovery of the repository.
• Installation of OAS (Oracle Application Server) on Solaris 9 and its configuration with oracle database.
• Involved in migrating from Solaris to Linux and windows to Solaris and Linux servers.
• Restore of Oracle instance and worked with Oracle team for Oracle installation and Building Oracle Cluster.
• Installed patches and software as needed, installed and configured new hard drives and memory.
• Created disk groups, volumes, volume groups and RAIDs using VERITAS Volume Manager.
• Involved in disk configuration and disk crash recovery using format and fdisk. Bad spots on disk were repaired using repair and analyze.
• Involved in the yearly maintenance patching for both SAN and NAS connected Linux servers and also Mounted NAS on Solaris.
• Involved in monitoring Juniper Networks NetScreen Firewall devices, gathering configuration data and also tracked configuration changes for Juniper Networks NetScreen Firewall instances. Raised alerts and violations based on thresholds set on monitoring and configuration data.
• Setup optimal RAID levels (fault tolerance) for protected data storage in NAS environments. Install and configure DHCP, DNS (BIND, MS), web (Apache, IIS), mail (SMTP IMAP and POP3) and file servers.
• Created new slices, mounted new file systems and unmounted file systems.
• Upgraded Solaris 9 to Solaris 10 and worked with Solaris zones/containers/LDOMS, Used Solaris Cluster to deploy two-node cluster.
• Performed patching, backups on multiple environments of Solaris, Linux and VMware.
• Implemented anti-spam technology based on open source applications on Linux servers.
• Created and Managed Meta devices using Solstice Disk suite and Volume Manager.
• Configured backup/archive policies using Tivoli Storage Manager backup utility, and mksysb images of root volume group to meet data archiving requirements, and disaster recovery readiness.
• Responsible for DNS and Configured DNS Servers and Clients, troubleshooting system and DNS issues.
• Troubleshooting and analysis of hardware and software failures for various UNIX servers (core dump and log file analysis).
• Involved in maintaining high availability clustering environment using HACMP Cluster software.
• Configured and administered TCP/IP, LPAR/DLPAR, NFS and VIO servers and Worked with LDAP in order to resolve user management issues.
• Implemented RBAC, Discretionary Access Control(DAC),Mandatory Access Control(MAC).
• Developed scripts for automating administration tasks like customizing user environment, and performance monitoring and tuning with nfsstat, netstat, iostat, vmstat.
• Created Korn shell scripts to monitor system resources and system maintenance and Performed administrative tasks such as System start-up/shutdown, and Backup strategy and scheduled cron jobs for job automation.
• Installed and deployed Weblogic and Websphere Application Servers (WAS).
• Used VERITAS Netback up tool for Backup and recovery, Developed and executed test plans for Veritas Cluster with Netapp SAN.
• Provided support for multi-path Fiber Channel storage systems, as well as Solaris servers configured with multiple Fiber Channel (FC) Host Bus Adapters (HBA) on a Storage Area Network (SAN) and Network Attached storage(NAS) as well.
• Installed and configured domain wide mail systems utilizing Postfix with multi subnet and a single relay host for internal mail forwarding, all external mails were handled by Send mail and SMTP.
• Attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment.
• Provided 24x7support on shift rotation basis.

Environment: Sun Solaris 10/9, Windows NT 4.0,Websphere, Weblogic, Windows NT 4.0, VERITAS Volume Manager 5.0, VERITAS Net backup 6.5.x, VMware ESX-3.5, Sun Enterprise 4500, Sun Enterprise 450/420R/250, Sun Ultra 250 with RAID, Pentium PCs, Oracle 10g, HACMP, SAN, NIM, NFS, VIO Servers.

Confidential, IL

Unix System Administrator

Responsibilities:

• Responsible for installation, configuration and administration of Sun Solaris 9 and Red Hat Enterprise Linux on x86 architecture.
• Installed and configured of hardware and OS on servers, workstations and I/O devices on E4500 environment.
• Managed the User and Application Account creations and deletions for the SUN Servers. This includes setting up SUDO access for DBA and application account access.
• Created mount points for Server directories, and mounted directories on the Servers.
• Installed and Administered Veritas volume manager 3.5 on Ultra Sparc E250, E450, Sun E3000 machines and configured RAID 0, RAID 1, RAID 0+1 and RAID 5. Created vmdisks, plexes, and volumes using the volume manager according to the requirements. Replaced failed disks using vxdiskadm.
• Co-ordinate with web admin team in installation of BEA Web Logic Server 8.1.
• Used ATG application suite and Cisco networking solution software to host variety of applications.
• Setup and maintained NFS, DNS, NIS, and TCP/IP network and knowledge in LDAP Server.
• Maintaining network and data security and, Setting up SSH and SCP features between SUN systems and other UNIX hosts.
• Installed/upgrade TSM on Unix Servers, Developed and executed test plans for Veritas Cluster with Netapp SAN.
• Used ESN Manager LUN/Meta mapping to perform Storage Allocation / Deallocation for the EMC Storage SAN.
• Installed and configured VMware ESX server instances for virtual server setup and deployment.
• Solaris fiber channel stack components for changes that could impact the SAN attach solution like Native drivers, HBAs, multipathing (MPxIO) SW, volume management, host clustering, installation/packaging, & bug fixes.
• Developed Korn shell scripts for admin tasks like customizing user environment, performance monitoring and Responsible for cron job management and Performed disaster recovery management procedures.
• Managed file permissions & ownership for important directories & files.
• Administered security, users, groups’ administration and daily backup and restore operations, networking service, performance, and resource monitoring and Performed disaster recovery management procedures.
• Administration responsibilities include user, group, disk, and security management, File sharing Permissions.
• Generated reports to show the trends of resource utilization user/CPU/network load.
• Assisted other UNIX administrators when help was needed (i.e. creating UNIX accounts, writing scripts to perform system administrator functions, responding to trouble tickets, etc).
• Involved in preparation of functional and system specifications. Estimated storage requirements for applications.

Environment: Sun Solaris 10/9, Red Hat Linux 5, Dell Power Edge 1800/1850/2850 servers, Intel servers, Sun Ultra Enterprise 4500, Sun Enterprise 450,TSM, Sun Enterprise 420R, Sun Enterprise 250, Sun Fire V20z servers, Dell PCs & Compaq PCs, SDS 4.1, 4.2 Solstice Disk suite VERITAS Volume Manager, VERITAS Netback up 5.0, Sybase 11.5.1, Perl Scripting, Oracle, NIS, NFS, LDAP server.

Confidential, CA

System Administrator

Responsibilities:

• Installation of Sun E250, E450, Sun E3000,E6900, Sun Fire v440/v480/v490 with Solaris 8/9. Upgraded/Migrated Solaris 7 to Solaris 8 on Sun servers and workstations.
• Configure Winbind on all Linux workstations which enables all the Linux users to be authenticated on Microsoft Windows 2000 Active Directory Server.
• Monitor T1, ISDN, 56k Modem, Router connectivity and all main servers' activity on a continuous basis.
• Used RPMs to install, update, verify, query and erase packages from Linux Servers.
• Authorized Solaris users/groups to access various applications and troubleshot various user problems using management tools.
• Setup EMC HBA fiber cards and storage frames for Oracle and Sybase databases.
• Responsible for DNS and Configured DNS Servers and Clients, troubleshooting system and DNS issues.
• Worked with DBAs on installation of RDBMS database, restoration and log generation.
• Responsible for Day to Day Backup and Recovery using tar, using and ufsdump on Solaris 8 & 9.
• Performed disk mirroring using SDS 4.1, 4.2(Solstice Disk suite).
• Managed shared NFS files system, mounting and unmounting NFS server, NFS client on remote machine, sharing remote file folder, starting and stopping the NFS services.
• Involved in disk configuration and disk crash recovery using format and fdisk. Bad spots on disk were repaired using repair and analyze. Created new slices, mounted new file systems and unmounted file systems.
• Worked with SAN,NAS, in EMC and CLARiiON disks, their configuration and installation of power path.
• Implemented System policies and hardware profiles, hard disk configuration for fault tolerance, disk mirroring and back up the data using BACKUP devices.
• Installed, configured CISCO routers & switches and the Cisco IOS & heartbeats for Oracle RAC.
• Validate daily tape backups. Assist in the migration of the backup infrastructure from Legato Networker to Symantec Backup Exec.
• User accounts management, developing korn shell scripts for various system performances monitoring purposes and troubleshooting.
• Installed and Configured Apache Web Server.
• Implemented Bug tracking system using bugzilla and Performed problem determination and restored service using standard procedures.
• Security measures blocking unnecessary ports and restricting user’s remote logins.
• Configuration and troubleshooting - LAN and TCP/IP issues, Weblogic.
• Monitor bad user logins and unauthorized users, frequently changing the root password for security.

Environment: Sun Solaris 9/8,Linux, BEA Web Logic 8.1,Apache web server, Sun E250, E450, Sun E3000, SunFire v440/v480/v490/E6900, Sun Sparc 20/10/5,Legato networker, ORACLE 9, C, EMC CLARiiON, Solstice Disk suite,, Cisco switches & routers, VLAN, Winbind

Confidential, Quincy, MA

Unix Administrator

Responsibilities:

• Administered servers in heterogeneous environments which include Solaris and Linux systems.
• Managed Linux Clusters by integrating NAS, SAN, SCSI, Myrinet and Infiniband into large high performance clusters. Installed, and configured cluster management tools to perform management and job submission to Clusters.
• Authorized Solaris users/groups to access various applications and troubleshot various user problems using management tools.
• Configure and maintain Windows 2000 Server that runs DNS, DHCP and active directory services.
• Used Logical Volume Manager for configuring logical volumes.
• Administered, installed, and supported services including: exim, qmail, BIND, spamassassin, iptables, ipchains, apache, Mailman.
• Installations of all the required Software, documentation and licensing and added new SCSI hard drives to the system.
• Setup dial-up, VPN (Oracle VPN Client), and SSH2 (Van Dyke Software), and firewall applications (MacAfee) for developers to access various domains.
• Deployed NFS environment for applications distribution, software development, and "auto home". This also involved setting up automated backups for the critical systems, and configuring "cachefs" for performance gains on the client side.
• Assisted Scientific Games Incorporated in LAN & WAN design and troubleshooting, and consulted on TCP/IP, and networking. Established and managed Scientific Games Incorporated DNS service with QuickDNS Pro.
• Expertise in setup various Network Printers and troubleshooting Printer problems.
• Shutdown the whole system along with databases and reboot the system.
• Used various commands to check the Performance of the system, load balances on the CPU and memory.
• Used Admin tool to Manage Users, Groups, Software, Hosts and Printers.
• Worked with DBAs on installation of Sybase to achieve restoration and log generation.
• Monitored Sun Solaris Servers running in a 24x7 data centre supporting approximately 400 servers.Solved hardware and software problems over the phone or during walk-in sessions.
• Attended weekly change management meeting and suggested various changes. Implemented all changes by following change management rules.

Environment: Sun Solaris 8/9, Red Hat Linux 4, NFS, NIS, TSM, IBM RS/6000,Veritas Volume manager 3.5, SunE250,E450,SunE3000, SunFire v440/v480/v490.