SUMMARY

• Nine years of IT work experience and more than 10 years of involvement in Linux and networking area.
• Proficiency in System/Network Administration, Monitoring, Security and Troubleshooting
• Automation using REST Web API, Perl API, Korn Shell, and shell scripting on Red Hat Linux, Solaris and Infoblox appliances
• Supported massive DDI (DNS, DHCP, IPAM) network environment
• Maintained secured batch processing jobs of highly sensitive financial data transfers with PGP key encrypted data through SFTP/FTP - TLS/SSL secured channels
• Involved in complete Administration tasks on RHEL, AIX and Solaris, and documentation tasks for the projects executed
• Tools/Packages installation, configuration and updates
• Worked on Version Control system or Change Integration; CI tools like Subversion and GIT.
• Request/incidents/ticketing record tools like HP Service Manager and HP Quality Center
• Established Client/Server information exchange service for P-to-P and automated environment
• Project work in REST API, Perl API, network programming, embedded programming projects using C and C++
• Experienced in maintaining file systems and creating ZFS
• Installed, monitored and supported Apache Web application Servers on AIX, Linux environments
• Good knowledge on operating systems architectures
• Strong technical background in Storage, Disk Management, Logical Volume Management (LVM) and logical partitioning

TECHNICAL SKILLS

Operating Systems: Red Hat Linux 6.x, 5.x, 4.x, Infoblox NIOS 6.x, Solaris 5/9/10, AIX 6.x, Apple Mac OS X, Ubuntu 14.x, 12.x, Windows 2008 Server.

Hardware: Infoblox (4010/4020, 2210, 1410/1420), Dell iDRAC PE T series, Sun Servers (E4500, E3500 and E450), IBM RS/6000, p520, p550, p570, p590, p595, p670, p690, Cisco routers 2800/3800, Cisco Switches SFE2000.

Tools: Subversion (SVN), Tivoli (TSM, ITM), Red Hat Cluster manager, LVM, Ufsdump, VERITAS Storage Foundation Suite, Solaris Volume Manager, File manager, send mail, PGP, HP service manager, HP Quality center.

Languages/Scripts: Perl, KShell, Shell, C, C++, SQL, and HTML.

Databases: MySQL

Networking: DDI (DNS/DHCP/IPAM), FTP, SFTP, FTPS/FTP-TLS, HTTP, HTTPS, TCP/IP, NIS, NFS, ALE, and BAPI.

Storage and Backup: IBM Tivoli (TSM), VERITAS Net Backup, Ufsdump, tape backup.

Web and Application: Apache, WebSphere Application Server 5.0.

Network/System monitoring tools: SPLUNK, Nagios, Wireshark, Zenoss, MRTG, tcpdump, and Iperf.

Routing/ Switching: OSPF, RIP, BGP, EIGRP, STP, VLANs, VPN, Ether-Channel bundling.

Other Programming Tools: SPNP (Stochastic Petri Net Package), ARIA

PROFESSIONAL EXPERIENCE

Confidential, Bloomington, IL

Network Engineer, DDI/Infoblox/Linux Support

Responsibilities:

• Worked in IP Services team (team size=6) to support one of the biggest network environment in the USA.
• Supported Infoblox appliances grid environment for DNS, DHCP and IP Address Management tools (IPv4), for the State Farm enterprise network.
• Worked on creating and maintaining new subnets, host with several record entries like CNAME, PTR, A, etc) with DHCP scopes using Graphical User Interface as well as IBCLI (Infoblox command line interface).
• Managing the changes through export/import of CSV spreadsheets on Infoblox web interface.
• Automation: Programming in REST (Web) API and Perl API to create several jobs for automation purpose like creating/deleting hosts/subnets, collecting network data information, monitoring status of a particular static IP/host/subnet, etc.
• System level monitoring on Linux and Infoblox Appliances to watch process and service statuses, like Performance Monitoring & Tuning - iostat, vmstat & netstat, nfsstat, etc.
• Supporting Apache Web services, HTTP running on Linux appliances.
• Installing, configuring and maintaining IBM TSM (Tivoli Storage Manager) backup agents for scheduled backup and restore jobs for Physical machines and VMWare VEEAM backup/restore for Virtual machines.
• Supporting Dev/Lab and Production environments and documenting the request/incidents on HP Service Manager (HPSM).
• Providing 24/7 on-call support.
• Monitoring system operations using SPLUNK monitoring system.
• Monitoring Network traffic using Wireshark and tcpdump tools.
• Using IPUtilities web tools to check DNS/IP entries, Audit logs, Subnet information, for internal and external zones, etc.
• Coordinate activities with vendors (Infoblox/F5/Cisco) and other State Ram services teams like Network services, Security, Cloud Services, Windows Support, etc inventory management, etc.

Environment: DDI, Infoblox 6.x, REST API, Perl API, Red Hat Linux 6.x, Tivoli (TSM), VMware ESX, NFS share, Perl Scripting, Korn shell Scripting, HP Service Manager, Technical writing.

Confidential, Raymond, OH

System Administrator (Red Hat Linux/IBM AIX)

Responsibilities:

• As a member of a Managed Services Team (team size 15) at Confidential, supported a huge Data Center of mixed OS (RHEL/AIX) and mixed storage (Hitachi/IBM/NetApp) infrastructure predominantly for CATIA Design Graphics application, DB2, Data Transfer and network services.
• Configuration and maintenance of critical infrastructure of Linux servers in AIX and Red Hat Linux cluster environment.
• Setting up secured infrastructure with DMZ, securing Data transfer channel, following Legal Authentication processes for secured Data Transfer, creating jailed user accounts.
• Supporting Red Hat Linux OS for patches and fixes.
• Supporting Linux servers in a SAN attached and NFS attached Infrastructure with NetApp, IBM and Hitachi storage devices.
• Installing, configuring and maintaining IBM TSM (Tivoli Storage Manager) backup agents for scheduled backup and restore jobs for Physical machines and VMWare VEEAM backup/restore for Virtual machines.
• Monitoring Servers health and performances using ITM (IBM Tivoli Monitoring) agents for Linux and AIX systems.
• Performed Performance Monitoring & Tuning - iostat, vmstat & netstat, nfsstat, etc.
• Monitoring system and applications operations and provide utilization reports on with a scheduled processes for daily/weekly/monthly jobs.
• Support a mixed infrastructure of both physical and virtual machines with predominantly Red Hat Linux OS and a few Ubuntu and CentOS machines.
• Provide on-going support for all Linux OS installs with process automation and overall changes.
• Answering Helpdesk calls, end users for new requests and trouble shoot server/application related issues. Documentation of such requests are maintained in ChangeGear change manager tool.
• Maintain NIS and AD environments for Linux servers.
• Configuring and supporting Apachi HTTPs Web environment, PHPMyAdmin tool.
• Installing and configuring Oracle client, IBM DB2 client processes on AIX and RHEL servers.
• Creating infrastructure for Atlassian Project with GIT repositories, STASH and JIRA tools on Ubuntu and RHEL systems.
• Work with Application user groups for tuning system parameters (SELinux, ulimit, mtu, firewall, etc, parameters) in order to run applications smoothly.
• Coordinate activities with vendors, suppliers, Confidential users to support operations like system/software licensing, legal authentications, NDA/Confidentiality Agreements between suppliers and Confidential, Data transfer, inventory management, etc.

Environment: Red Hat Linux 6.x, AIX 6.x, VMware ESX, RHCM(Cman), SFTP and FTP-TLS secure File transfer, ChangeGear, IBM TSM, IBM ITM, Dell PowerEdge iDRAC, Hitachi HDLM, NetApp, SNMP, NFS share, Perl Scripting, Korn shell Scripting, Technical writing.

Confidential, Chicago, IL

Linux/Unix Administrator/Perl Application Developer

Responsibilities:

• Application Developer and System Administrator role in different platforms like: the new RHEL 5.x and old Solaris 5.x, and Mainframe AIX.
• Installed Red hat Linux image server, on a physical server which in turn will host a virtual server RHEL version 5.5. This was done separately for Development, QA, and Production server.
• Installed different software tools/softwares such as OpenSSL, SFTP, FTP-TLS, ESP agent, SMTP, TSM Client, PGP, etc integrated it with several user accounts in a Jailed environment.
• Import and Deport disks into a disk group depending on the requirement using the vxassist utility on the Veritas Volume Manager.
• Managed the User and Application Account creations and deletions for the SUN Solaris and Red hat Linux Servers.
• Created disk groups, initialized physical disks, created sub disks, volumes to create a Veritas File System (VxFS).
• Created mount points for Server directories, and mounted directories on the Servers.
• Maintaining network and data security and, Setting up SSH and SCP features between SUN systems and other Red hat Linux hosts.
• 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.
• Installed patches and Packages as needed, installed and configured new hard drives and memory.
• Troubleshooting and analysis of hardware and software failures for various UNIX servers (core dump and script log file, ESP Logs analysis).
• Performed Performance Monitoring & Tuning - iostat, vmstat & netstat, nfsstat.
• Developed Korn shell scripts and Perl Shell scripts for several applications like File Transfers, customizing user environment, performance monitoring and Responsible for cron job management/ESP Scheduling and Performed disaster recovery management procedures.
• Managed file permissions & ownership for important directories & files.
• Administration responsibilities include user, group, disk, and security management, File sharing Permissions.
• Performed Installation, Scripting, Upgrading, Patches, Migration, Configuration, Troubleshooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning on UNIX (SUN Solaris, Red Hat Linux) Systems.
• Major Perl and Korn shell script development experience in the Migration project (Old Sun Solaris to new Red Hat Linux).

Environment: Red Hat Linux 5.x, Old Sun Solaris 5.x, Mainframe AIX., ESP Scheduler, PGP, SFTP and FTP-TLS secure File transfer, SMTP, NFS share, Perl Scripting, Korn shell Scripting, HP Service Manager, HP Quality Center, Technical writing.

Confidential, Chicago, IL

Solaris/UNIX Administrator

Responsibilities:

• System Administrator role in a large team responsible for maintaining of different Unix operating systems such as RHEL 3/4/5, Solaris 8/9/10, AIX 5.1/5.3, Windows servers.
• Installed different VMware products such as VMware server 2.0, ESX 3.5/4.0 on a physical server which in turn will host different virtual servers running different RHEL versions, Solaris, Open Solaris etc. and windows servers.
• Installed different Oracle products such as Oracle BPM, integrated it with Oracle Weblogic server 10.3, Oracle DB 11g and Sun One LDAP 6.1 to allow developers to work on it.
• Installed AIX as LPAR on an IBM P series servers maintained by using HMC set up on a SUSE server.
• Import and Deport disks into a disk group depend ending on the requirement using the vxassist utility on the VERITAS Volume Manager.
• 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 disk groups, initialized physical disks, created sub disks, plexes, volumes to create a VERITAS File System (VxFS).
• Created mount points for Server directories, and mounted directories on the Servers.
• Maintaining network and data security and, Setting up SSH and SCP features between SUN systems and other UNIX hosts.
• Managed shared NFS files system, mounting and un-mounting NFS server, NFS client on remote machine, sharing remote file folder, starting and stopping the NFS services.
• Installed patches and Packages as needed. Installed and configured new hard drives and memory.
• Troubleshooting and analysis of hardware and software failures for various UNIX servers (core dump and log file analysis).
• Performed Performance Monitoring & Tuning - iostat, vmstat & netstat, nfsstat and network monitoring-Nagios
• Experience in working with Clear Case CLI commands such as clear tool and clear make in both single command mode and interactive mode.
• Experience in working with cleartool to display event record, by including the comment strings such as lshistory, lscheckout, lstype etc.
• Performed patching, backups on multiple environments of Solaris and Linux.
• Installed and configured Web Sphere, Apache, I Planet, BEA Weblogic.
• 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.
• Administration responsibilities include user, group, disk, and security management, File sharing Permissions.
• Installed and Configured Apache Web Server. Taking ufsdump for swap gear preparation on the other site for migration
• Performed Installation and Administration of BEA Weblogic 8.1/9.2/10.3
• Installed products like tibco. Responsible for installation, configuration and support of Weblogic 10.3/9.2/8.1 on Sun Solaris 10 Servers.
• Performed administration of Sun Solaris and building high end Sun Servers for production environment. Builded Sun servers with Solaris 10, Jumpstart.
• Performed Installation, Upgrading, Patches, Migration, Configured, Troubleshooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning on UNIX (SUN Solaris 10, Red Hat Linux) Systems.
• Experience in writing monitoring/start up shell scripts for Unix and batch scripts for windows
• Performed Zone Creation on Solaris 10. Configured and Installed Solaris zones (containers) using utilities Zonecfg, Zoneadm etc and also worked on the creating branded zones (creating Solaris 8/9 on a Solaris 10 server).
• Experienced in maintaining file systems and creating ZFS.
• Experience in implementing and maintaining the IBM Net Cool suite in a complex enterprise environment
• Performed design and have a development experience in Perl and Unix shell scripting

Environment: Sun Solaris 5.x, Red Hat Linux 5.x, IBM Net Cool Suite., Oracle BPM, BEA Weblogic, VMware server SMTP, NFS share, Perl Scripting, Korn shell Scripting, VERITAS.

Confidential, San Mateo, CA

Solaris/UNIX Administrator

Responsibilities:

• Installed and configured hardware and OS on Servers, Workstations and I/O devices on Sun hardware.
• Monitor, troubleshoot and administer of SUN Servers, Linux and HP-UX.
• Performed Jumpstart Installation of Solaris servers for different OS levels (9/10) for different architectures (V- series, M series, T series).
• 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.
• 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 and worked on Tivoli Storage Manager (TSM), VERITAS DMP, Solstice Disk Suite (SVM).
• Involved in disk configuration and disk crash recovery using format and fdisk. Performed fsck on the file systems and bad super blocks were repaired using repair and analyze.
• Created new slices, mounted new file systems and uncounted file systems.
• Created and Maintained ZFS.
• Upgraded Solaris 9 to Solaris 10 and worked with Solaris zones/containers, Used Solaris Cluster to deploy two-node cluster.
• Installed the packages using Enterprise Installation Standards (EIS).
• Performed patching, backups on multiple environments of Solaris, Linux and VMware.
• Installed and configured packages, patches on Windows (2k &2003) environments.
• 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.
• Installed and Configured Sun ONE Webserver.
• Responsible for monitoring system performance and health by using a tool Big Brother or Xymon.
• Responsible for DNS and Configured DNS Servers and Clients, troubleshooting system and DNS issues.
• Configured BIND9 DNS Server to serve an internal network and an external network at the same time with different set of information on Solaris servers.
• 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.
• 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).
• Created disk groups, initialized physical disks, cachreated sub disks, plexes, volumes to create a VERITAS File System (VxFS).
• Import and Deport disks into a disk group depend ending on the requirement using the vxassist utility on the VERITAS Volume Manager.
• Used VERITAS Netback up tool for Backup and recovery, Developed and executed test plans for VERITAS Cluster with Netapp SAN.
• Worked on tripwire, F5 networks in order to develop an effective way to direct traffic running on app servers using the BIG IP application traffic management device.
• Configured LUNs (HDS) using VERITAS Volume Manager.
• Experience in performing RAC, deploy, and support using Oracle RAC on Solaris 9/10.
• 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).
• Experience in working with Clear Case CLI commands such as clear tool and clear make in both single command mode and interactive mode.
• Experience in working with cleartool to display event record, by including the comment strings such as history, l scheckout, lstype etc.
• 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 6.0, Sun Enterprise 4500, Sun Enterprise 450/420R/250, Sun Ultra 250 with RAID, Pentium PCs, Oracle 10g, HACMP, SAN, NIM, NFS, VIO Servers.

Confidential, Plymouth, MI

Solaris 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 / DE allocation 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 corn 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 4, Dell Power Edge 1800/1850/2850 servers, Intel servers, Sun Ultra Enterprise 4500, Sun Enterprise 450, Sun Enterprise 420R, Sun Enterprise 250, Sun Fire V20z servers, Dell PCs & Compaq PCs, SDS 4.1, 4.2 Solstice Disksuite VERITAS Volume Manager, VERITAS Netback up 5.0, Sybase 11.5.1, Perl Scripting, Oracle, NIS, NFS, LDAP server.