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Unix/linux Systems Administrator Resume

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Chicago, IL

SUMMARY

  • 7+ years of UNIX System and Network administration in Sun Solaris (9/10), HP - UX (10.x,11.x), IBM AIX (5.x), Linux (RedHat 4/5/6).
  • Server Installations, configurations, upgrades and migrations on Solaris, HP- UX, Linux.
  • Configure and manage Middleware and web tools such as Apache, Tomcat, WebSphere, JBoss.
  • Storage Provisioning, Volume and Filesystem Management using Veritas Volume Manager and VeritasFilesystem (Veritas Storage Foundation), Configuring ZFS filesystems.
  • Customized patching and maintenance of HPUX, Solaris, Linux servers on regular schedule.
  • Worked on different platform on SUSE Linux which includes 10.x,11.x
  • Regular work involving building new Linux Physical and Virtual servers using kickstart and PXE.
  • Experience in building the Solaris servers using wanboot.
  • Good working knowledge of network & UNIX security procedures.
  • Administrating and troubleshooting Red Hat Cluster Suites.
  • Participate in installing and configuring of UNIX/Linux based Oracle 10g products
  • Strong knowledge of large-scale Linux deployment methodologies, kernel configuration, performance monitoring, and tuning
  • Experienced in working with Network Engineers to install, manage, and configure NAS based storage and insure overall system and network security.
  • Worked with WebSphere team in order to configure WAS instances for BMC patrol.
  • Hitachi, EMC SAN installation and tuning of NetBackup server environment.
  • Provide 24x7 on call server support for UNIX environment and Sun Solaris.

TECHNICAL SKILLS

OS: Linux (RHEL4/5/6), IBM AIX 3.2.x, 4.x, 5.x, HP-UX 9.x, 10.x, 11.x, Sun Solaris 2.x, 8, 9, 10

Hardware: HP, DELL, IBM, PSeries, SUN Enterprise.

Servers: Web Sphere Application Server 3.5/4.0, Netscape/iPlanet Server, MQSeries, Web Logic Server, IBM HTTP Server, HTML, DHTML, XML, Java Script, JSP, Servlets, EJB, Apache 2.2, Tomcat 5.5, Active MQ

Networking: TCP/IP, RPC, UDP, NIS, NFS, DNS, DHCP, Cisco Routers/Switches, LAN.

RDBMS: IBM UDB2, Oracle 7.x/8.0/9i, MS-SQL Server 7.0/6.5 and MS-Access 97/95.

Languages: UNIX Shell Programming (ksh,csh,sh),Verilog HDL, Matlab with toolboxes, SQL.

Applications: Sensage/Hawkeye. Samba, Tivoli (TSM), VERITAS Volume Manager.

PROFESSIONAL EXPERIENCE

Confidential, Chicago, IL

Unix/Linux Systems Administrator

Responsibilities:

  • Troubleshooting all kinds of UNIX problems and assisting users.
  • User and Group administration in Linux and Solaris environment.
  • Day to day resolving ticket issues.
  • Responsible for migration of Microsoft Virtual Servers and VMware GSX servers to ESX platform.
  • Diagnosing and resolving systems related tasks in accordance with priorities setup in dealing with trouble tickets.
  • Hands on experience using the VI editor.
  • Automation of jobs through crontab and autosys
  • Install, configure and administer MQ 5.3/6.0 on AIX, Linux and Windows environments.
  • Configuring and maintaining virtual server environment using VMWARE ESX/ GSX, VSphere 4.x, Xen, HP-UX nPars/vPars.
  • Hand on experience in data center, work with architecture team to design test, build and support Cloud infrastructure.
  • Perform day to day LVM operations and System Admin tasks
  • Create virtual media repository and LPAR dedicated virtual optical drives in the VIO servers to make new installations, cloning and migrations faster and easier
  • Set up and troubleshoot issues with Secure Shell in the environment to accommodate script automation and password changes
  • Experience with installing and configuring sudo, proposed and implemented the idea of building a master sudoers file, and worked on a script to push the file to client LPAR’s on a weekly basis to lock down sudo access as a part of security audit.
  • Good knowledge of HDFS, Hadoop.
  • Installed and automated config 2 html scripts on client LPAR’s and documented the RGA AIX environment by designing a webpage to access the cfg2html and ganglia output
  • GSD331 troubleshooting, find any incompliant servers are Remediate GSD331.
  • Installed WebSphere Portal Server 5.1/6.0/6.1 and enabled Web Content management.
  • Migrated WAS 5.0 Network Deployment and Base on AIX/Windows platforms to WAS 6.0 ND.
  • Experience in NetApp storage devices, setup, configuration, operations and connecting to pSeries hardware.
  • Hands on experience with Jenkins, Ant, GIT, ACL, NAT, Openstack, Chef and puppet.
  • Solid understanding of Keon theory, being able to make directory architectural recommendations such as additions to DIT, schema extensions and indexing, Analyze and implements ACLs
  • Worked on AIX 5.3 and 6.1 running on ten P5s (P550 and P560), two P6s (P6 550), and six P7s (P700, P702 and P750) attached to EMC storage subsystems
  • Experience with Power VM 2.2 (VIO), HMC Version 6 and 7, EMC CLARiiON subsystem device configuration (Power path)
  • Power VM Virtualization (SEA, vSCSI, NPIV), Dynamic LPAR (DLAPR)
  • Experience with Integrated Virtualization Manager (IVM)
  • Experience in installing configuring and administering MQ 5.3/6.0 on AIX, Linux and Windows environments.
  • Installation and configuration of LPARs with AIX 5.3 on P5 servers. Manage LPARs and provide virtual memory management and memory optimization.
  • Experienced in SAN Zones and creating LUN for the Servers as requested
  • Experienced with working with Systems Engineers to implement storage solutions which provide high performance, data protection and cost effective use of available storage.
  • Installation, Configuration and Troubleshooting of Tivoli Storage Manager (TSM) and License Manager (TLM). Upgrade TSM from 5.1.x to 5.3.x.
  • Management of all SAN storage systems, Hitachi, EMC, SUN capacity planning and performance tuning.
  • Work with IBM DS8000, DS4700, DS6800, FAStT /DS4800, DS4500 (FAStT 900), USP600, AMS500, IBM nSeries storage hardware and SAN Fiber director series. Configure and administer Fiber card Adapter’s and handling AIX part of SAN.
  • Configuration of VIO server and VIO clients from Hardware Management Console.
  • Administration of multiple AIX machines, AIX clusters, and SP nodes from any client platform through WebSM.
  • Experience with Scripting languages Shell, Python, Perl and PowerShell
  • Installation of operation system patches, updating the maintenance levels when required, when server went down coordinated with IBM-Data center to Bring up the server within the time period.
  • 2+ years of experience in IBMWebSphereCommerce Server with expertise in Requirement Analysis, Design, Development, Testing, Maintenance and Troubleshooting of high transaction eCommerce applications.
  • Installed WebSphere Portal Server 5.1/6.0/6.1 and enabled Web Content management.
  • Configure and manage Middleware and web tools like WebSphere.

Environment: Unix/RedHat Linux, Vi Editor, Unix/Linux, Shell Scripts & SQL Scripting.

Confidential, Lakeland, FL

UNIX-Linux / AIX Admin

Responsibilities:

  • Involved in complete Administration tasks on UNIX, Red Hat Linux and Solaris and documentation for the projects executed.
  • Linux (RedHat 3/4/5/6) UNIX System and Network administration in Sun Solaris (9/10) (SPARC,X86), HP-UX (10.x,11.x), IBM AIX (5.x), Server Installations, configurations, upgrades and migrations on Solaris, HP- UX, Linux and AIX.
  • Involved in installing infrastructure and maintaining the performance of server, availability. Storage system software and functionality and interface components.
  • Handful of experience in Solaris 9 (SPARC and x86)
  • Troubleshooting all kinds of UNIX problems and assisting users.
  • Experience in Web and Application Servers Web logic 10.3.x or 9.x and iPlanet.
  • Responsible for set up of BMC Patrol Agents V3.6.50.11i and 3.6.60i environment on UNIX Servers.
  • Experienced working script in shell.
  • Involved in troubleshooting shell scripts.
  • Wrote & automated security audit scripts in the environment.
  • Involved in installing the Solaris Operating system from DVD and from a JumpStart/AI server
  • Knowledge of Kickstart and PXE administration
  • Experience with IBM Power4, Power5, Power6 and Power7 virtualization.
  • Administering and troubleshooting of Redhat Clusters.
  • Hands on experience using the VI editor.
  • Linux (RedHat 3/4/5/6) UNIX System and Network administration in Sun Solaris (9/10), HP-UX (10.x,11.x), IBM AIX (5.x), Server Installations, configurations, upgrades and migrations on Solaris, HP- UX, Linux and AIX.
  • Created RAID volumes using RAID Controllers and LSI Hardware
  • Configuring and maintaining virtual server environment using VMWARE ESX/ GSX, VSphere 4.x, Xen, HP-UX nPars/vPars, Solaris 10 Zones.

Environment: AIX, Unix/RedHat Linux, Vi Editor, Unix/Linux, Shell Scripts.

Confidential, Chicago IL

UNIX Administrator

Responsibilities:

  • Perform system installs and performance tuning, configure and administer AIX 5.3, 6.1 LPAR’s
  • Perform day to day LVM operations and System Admin tasks
  • Create virtual media repository and LPAR dedicated virtual optical drives in the VIO servers to make new installations, cloning and migrations faster and easier
  • Set up and troubleshoot issues with Secure Shell in the environment to accommodate script automation and password changes.
  • Installed and automated config 2 html scripts on client LPAR’s and documented the RGA AIX environment by designing a webpage to access the cfg2html and ganglia output
  • GSD331 troubleshooting, find any incompliant servers are Remediate GSD331.
  • Migrated WAS 5.0 Network Deployment and Base on AIX/Windows platforms to WAS 6.0 ND.
  • Experience in NetApp storage devices, setup, configuration, operations and connecting to pSeries hardware.
  • Solid understanding of Keon theory, being able to make directory architectural recommendations such as additions to DIT, schema extensions and indexing, Analyze and implements ACLs.
  • Involved in complete Administration tasks on UNIX, Red Hat Linux and Solaris and documentation for the projects executed.
  • Linux (RedHat 3/4/5/6) UNIX System and Network administration in Sun Solaris (9/10)(SPARC,X86), HP-UX (10.x,11.x), IBM AIX (5.x), Server Installations, configurations, upgrades and migrations on Solaris, HP- UX, Linux and AIX.
  • Configuring and maintaining virtual server environment using VMWARE ESX/ GSX, VSphere 4.x, Xen, HP-UX nPars/vPars, Solaris 10 Zones.
  • Experienced in working with Network Engineers to install, manage, and configure NAS based storage and insure overall system and network security.
  • Hands on experience working with Shell.
  • Involved creating RAID volumes using RAID Controllers and LSI Hardware
  • Experience with storage networking, with vendors/technologies such as iSCSI, SAN/NAS, data center storage consolidation, EMC, NetApp, HDS, HP, or Supported and Good Knowledge of designing IT architectures for storage and backup in the enterprise.
  • Hands on experience working with VI editor.
  • Developed web service integration layer for Web Sphere Portal. Install and configure Web Sphere Portal 5.1/6.0 on AIX, UNIX and Windows.
  • Troubleshooting all kinds of UNIX problems and assisting users.
  • Involved in installing infrastructure and maintaining the performance of server, availability. Storage system software and functionality and interface components.
  • Experience in Web and Application Servers like Tom Cat, Web logic 10.3.x or 9.x and iPlanet.
  • Responsible for building and migrating different versions of RHEL.
  • Responsible for migrating and updating RHEL, SUSE, Fedora.
  • Responsible for patching and upgrading all SUSE Linux Servers.
  • Experienced with working with Systems Engineers to implement storage solutions which provide high performance, data protection and cost effective use of available storage.
  • Experience in troubleshooting hardware and software problems and resolving it.
  • Kernel upgrade on RHEL and SUSE.
  • Create virtual media repository and LPAR dedicated virtual optical drives in the VIO servers to make new installations, cloning and migrations faster and easier.
  • Responsible for set up of BMC Patrol Agents V3.6.50.11i and 3.6.60i environment on UNIX Servers.
  • Worked with WebSphere team in order to configure WAS instances for BMC patrol.
  • Experience in Setup and Configuration of IBM AIX HACMP and GPFS on pseries servers.
  • Involved in supporting HP Open VMS Systems
  • Experience in using VERITAS Volume manager and VERITAS Cluster server products.
  • Experienced in leading a team for the built process and represent Change control meeting for the ongoing process.
  • Experience with Integrated Virtualization Manager (IVM)
  • Responsible for installation and maintenance of VFSX in a clustered environment
  • Experience in installing configuring and administering MQ 5.3/6.0 on AIX, Linux and Windows environments.
Environment: Unix/RedHat Linux, Vi Editor, Unix/Linux, Shell Scripts, VMWARE.

Confidential, Mooresville, NC

Unix/Linux Administrator

Responsibilities:

  • Installation, Configuration, Maintenance and Administration of Red Hat Enterprise Linux 4/5/6 and SUSE Enterprise Linux.
  • Knowledge of system security, system integration principles and technologies of multiple operating systems.
  • Gathering & Understanding the functional specification from the functional document.
  • Administrated DHCP, DNS and Samba services in Linux System.
  • Troubleshooting Day - to-Day issues with various Servers on different platforms.
  • Configuring Backup solutions on SAN/NAS storage.
  • Configuration, Administration and Maintenance of NFS, DNS, NIS & NIS+ on Linux Servers.
  • Installation, configuration, and administration of VMware, Solaris Zones, Containers, and Ldoms
  • Responsible for Patches for the operating system, building startup shell scripts, managing the automation of Cron jobs and managing file systems.
  • File system Administration, Setting up Disk Quota.
  • Implementing & troubleshooting NFS in Prod/ QA/ Dev environment.
  • Setup virtual host for new application setup and creating documents.
  • Working on evaluating new hardware and software.
  • Installed/setup and maintained Splunk app for various platform of Operating system.
  • Experience in System Administration Driver Configuration.
  • Familiarity with message brokers such as ActiveMQ and/or RabbitMQ.
  • Understanding of common data structures (arrays, hash tables, trees, and linked lists).
  • Hashing and cryptographic techniques.
  • Configuring different systems such as: Oracle ASM (RAC), VCS and CFS, and middleware applications.
  • Provide remote support for Linux servers and maintaining SLAs, Performance tuning and enhancing.
  • Production Support for 600+Linux Servers
  • Customizing the applications according to the business requirements.
  • Involved in troubleshooting the performance issues related to web application running on virtual machines
  • Responsible for Connectivity Issues among various Servers and Switches and also responsible for installation of various hardware components on various servers.
  • Work with Onsite and Offshore development teams for application development and delivery.
  • Provide management reporting on daily/weekly/monthly basis.

Environment: Unix/RedHat Linux, Vi Editor, Unix/Linux, Shell Scripts, VMWARE.

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