SUMMARY

• Around 9 years of IT experience in Unix/LinuxSystems Administration and Server Virtualization, worked closely with Software development, application and database teams to meet business and technical demands.
• Professionally sound within installation, configuration, backup, recovery, maintenance, and support of RedHat Enterprise Linux, Oracle Enterprise Linux, SUSE CentOS and AIX on Virtual (VMware) and Physical (HP, Dell and IBM) environments.
• Around 2+ Years’ Experience in Deploying and Administrating Splunk Across the Organization.
• Experience in Splunk 5.x and 6.x product, Distributed Splunk architecture and components including search heads, indexers, forwarders, etc.
• Prepared, arranged and tested Splunk search strings and operational strings.
• Troubleshooting and resolve theSplunk - Performance, Log Monitoring Issues; Role Mapping, Dashboard creation, Data models etc.
• Experience in building Red Hat Network Satellite Server for automated installation of Linux boxes and creating image of Linux system with System Imager that automates Linux installs.
• Experience with high-end enterprise servers like HP ProLiant DL 380, 385, 580, BL400c, BL480c, IBM HS22, HS12 Blade center Servers and Sun T2000, T5240, M4000.
• Experience working on Oracle Real Application Cluster (RAC) database, which provides highly available database solutions and supported MS SQL Server and DB2 teams.
• Experience on Live Upgrade, migrating from UFS root file system to ZFS file root system in Solaris.
• Expert in installing, upgrading and configuring RedHat Linux 4.x, 5.x, 6.x using Kickstart Servers and Interactive Installation.
• Experience in Installation, Configuration, Implementation, up-gradation, Maintenance and Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring.
• Experience with Veritas Volume Manager (VxVM), Veritas File System (VxFS), Veritas Net Backup, Veritas Clustering with SAN, NAS environment.
• Experience in configuring Zettabyte File System (ZFS) pools, file systems, snapshots and clones in Solaris and Global File System (GFS) in Linux.
• Experience in User & Security administration, multiple backup & recovery technologies (Snapshots, Disaster Recovery plan) and maintenance of various activities.
• Involved in preparing Root Cause Analysis (RCA) document for unexpected critical issue’s for RedHat, AIX, WebSphere and Jboss.
• Experience in server monitoring, capacity planning, application monitoring with the help of Nagios, Cacti, Zabbix.
• Experience using cloud providers and API’s for Amazon (AWS) with CloudSigma(EU).
• Expertise with creating and managing user accounts, security, rights, disk space and process monitoring Red Hat Linux.
• Solid working knowledge of VMware, NFS, NIS, NAS/SAN’s,Puppet, Jenkins, Kickstart and APT/Yum.
• Experience in configuration ofNIS, NIS+, DNS, DHCP, NFS, LDAP, SAMBA, SQUID, postfix, sendmail, FTP, remote access, security management and security trouble shooting skills.
• Very good understanding in the concepts and implementation of high availability, fault tolerance, fail over, replication, backup, recovery, Service Oriented Architecture(SOA) and various Software Development Life Cycle (SDLC) methods.
• Experienced with RedHat Satellite Server with custom repositories to provide a stable patch management solution for the Linux environment.
• Extensive experience withLinux, Unix, and WinCEdevelopment,LinuxKernel module,Device Driverdevelopment, Multiple Task/Thread Development,IPC communications, IP/TCP/UDP Socket programs;POSIXAPI,Shell Scripts,Bash,Python, and version control in GIT&SVN, File System and Low level System I/O.
• Proficient in Linux Utilities such as KICKSTART, SSH, FTP, TCP wrappers, Process Management, Memory Management, and Text processing tools, Log Management, Package Management, Disk Management and Swap Partition/Files Management.
• Worked on Configuration Mangement tools such as Puppet, Chef and Ansible.
• Sudo administration and Redhat Linux package administration using RPM and YUM.
• Involved in Data Center Migration for P2P, V2V and P2V environments.
• Expertise in scripting for automation, and monitoring using Shell, PHP, Python & Perl scripts.
• Experience working in SAN environment like EMC Symmetrix DMX3, DMX4 and Clariion CX3 series arrays as well as HP EVA 8400.
• Creating Linux Virtual Machines using VMware Virtual Center and AIX LPARs on P550 and P570.
• Excellent Interpersonal and Customer Relational Skills. Proven Communication, Presentation Skills and Leadership Qualities. Good Team player with proficiency at time management, multitasking, able to meet deadlines and handle priorities.
• Experience with 24x7 availability to support the production computing environments, providing on-call and weekend support.

TECHNICAL SKILLS

Operating Systems: RHEL 5.x/6.x, SUSE 10.x/11.x, Solaris 8/9/10,11, Fedora 22/23, IBM-AIX 5.X, zVM, IBM power7/6/5 p520s, p550s, p570s, p595s, p760s, p770s, Windows 98/2000/NT.

Hardware: HP Proliant, Blade servers, Sun Sparc Enterprise M3000/ M4000/ M5000/ T2000/ T4-2, Sun Servers E450/ E3500/ E4500/ E5000/ E6500, Sun Fire V210/ V280/ V490/ V890, Sun Blade T6300, HP Proliant BL 460c Gen6,8/DL 360p Gen8/DL 380 Gen 9, SUN Desktops (SPARC 10, 5), DMX3 and DMX4 Storage Arrays

Software: Veritas Storage Foundation High Availability 5.1/6.2, Veritas Volume Manager 3.5/4/5, Veritas File System,Veritas Cluster Server, Veritas Netbackup 6.0, SolarWinds &Ground works monitoring, MS-Office/MS-Project, Puppet, Chef, Cacti, Nagios, App Dynamics, Splunk 5.x/Splunk 6.x

Web/ Application Server: Tomcat, Apache DB2, Oracle Database

Network Protocols: DHCP, DIG, DNS, SNMP, SMTP, Ethernet, IOS, netstart, NFS, NIS, RIP, OSPF, BGP, TCP/IP, and TCP dump, FTP, TFTP.

Cluster Environment: VERITAS Cluster Servers 4.1, 5.1, 6.2 and Sun Cluster Servers 2.2, 3.1, 3.2

Programming Languages: C, C++, SQL, HTML, PHP, Bash, Perl and Shell Programming, JSP, Python

PROFESSIONAL EXPERIENCE

Confidential, Herdon, VA

Sr. System Admin/Splunk Admin

Responsibilities:

• Building, administering, monitoring and troubleshooting RHEL4.x/5.x/6.x, AIX 6.1, HP BL460, DL 380 Dell and IBM X Series, Solaris (Solaris 9,10,11) and OEL (5.x, 6.x)
• Extensively Worked on RHEL Provisioning, Upgrades, Patching, Configuration and Performance Tuning in Linux environment using satellite server.
• Configured Kickstart server and updating/applying patches to the servers using RedHat Satellite server.
• Installation, configuration, administration of RHEL 5, 6 & Solaris 10, 11 using Kickstart, Jumpstart, custom configuration like package management, volume management of servers.
• Providing production support for multiples applications residing on Linux and Windows environments. Making sure Zero-Down time for enterprise critical applications by raising outages, escalations whenever necessary.
• Troubleshooting and resolve theSplunk- Performance, Log Monitoring Issues; Role Mapping, Dashboard creation, Data models etc.
• Experience developing Splunk queries and dashboards targeted at understanding application performance and capacity analysis.
• Worked as Splunk developer to setup Splunk app for a critical new launch.
• Worked on setup of various dashboards, reports and alerts in Splunk.
• Experience in Installation and configuration of Solaris 10, 11 with virtualization Zones, clusters.
• Raised, handled and closed multiple Change Management and Trouble Management tickets accordingly with Standards.
• Experience in migrating a production infrastructure into an Amazon Web ServicesVPC utilizing AWS Cloud Formation, Chef/Ops Works etc.
• Leveraged AWS cloud services such as EC2, auto-scaling and VPC to build secure, highly scalable and flexible systems that handled expected and unexpected load bursts.
• Designed and implementedChef, including the internal best practices,cookbooks, automatedcookbookCI and CD system.
• Installed Chef-Server Enterprise On-Premise and established WorkStation.
• Built new servers using chef cookbooks on premise cloud, modified cookbooks in ruby and rails.
• Debugged the cookbooks using Kitchen to rectify the errors.
• Working with JIRA for creating Projects, assigning permissions to users and groups for the projects & Created Mail handlers and notification Schemes for JIRA.
• Scanning the newly assigned LUNs to the serves and assigning them to volume group and increasing the file system using Red Hat volume manager
• Mounting & un-mounting the LUNs to the Red Hat Linux servers and troubleshooting the issues encountered.
• Processing the work request like build and deploying the codes on UAT, Staging, and Production environments.
• Worked with Storage Area Networks (SAN) which consisted of Hitachi and EMC storage.
• Add, remove and resizing Logical volumes using LVM in Linux and implementing software RAID at installation time.
• Define/setup network protocols, Network File Services (NFS), and Network Information Services (NIS) in Linux Environments.
• Worked with troubleshooting and tickets related to Amazon Web Services (AWS) with vendor.
• Testing and upgrading production, development and test Linux and Solaris servers.
• Creation & maintenance of user accounts, passwords and profiles, home directories, initialization of files, groups’ creation and management, setting file permissions, customizing shell environment setup for users.
• Created LVMs on the Linux servers for disk management and configuration of email protocols like sendmail and postfix.
• Installation, setup and configuration of Apache Kafka and Apache Zookeeper.
• Troubleshooting various problems related to VxVM in initializing, replacing, mirroring, encapsulating and removing disk devices on various Production Boxes.
• Maintaining production critical servers running Solaris, UNIX, Linux supporting Oracle database and web services while providing 24x7 support.
• Writing Shell Scripts for managing day-to-day transactions & for automation of routine tasks and troubleshootingCassandraissues.

Environment: RHEL4.x/5.x/6.x, AIX 6.1, HP BL460, DL 380 Dell and IBM X Series, SAN, LVM, RPM, Tivoli endpoint, BMC patrol, WebSphere, VERITAS Net Backup, Shell and Perl Scripting, BMC Remedy 8.1, 8.1.0x, ColdFusion 9, 11, AppDynamics, Splunk 5.x,6.x

Confidential, Bellevue, WA

Sr. RedHat Linux/Unix Systems Administrator

Responsibilities:

• Worked as Administrative support for 2200 odd Linux running Weblogic Suite applications, variety of business applications.
• Performed Installation, configuration of RHEL 4/5/6, Centos 5/6, and Solaris operating systems.
• Performed live as well as manual OS upgrade from red hat 4 to red hat 5 and 6.
• Creating and managing shared disk groups in clustering environment.
• Installation of local yum repository and package administration using yum and rpm.
• User, Group management for all the Linux Servers.
• Setup and management of SFTP server for file transfer services.
• Installed/configured/maintained the Linux servers NIS, DNS, NFS, Sendmail, apache, ftp, sshd
• Installed host firewall Iptables for RedHat Linux
• Implemented chroot jailing for users to have restricted access to the SFTP server.
• Setup LDAP Client services on Linux Servers.
• Configured Linux Kickstart on multiple servers for network installation.
• Creating and cloning virtual machines in VMware environment using Virtual Infrastructure client 3.5 and Vsphere 4.0.
• Installed Oracle Database 10g and 11g, Oracle Application server 10.x and E- Business Suite 11.5.10 application. Assisted the DBA team with various tasks like creating database instances, cloning of databases, monitoring oracle services and performing RMAN backups.
• Installed and configured Veritas Enterprise Netbackup (NB 5.1.3, 6.5.1) and setup policies and schedules for backups and restores. Created RMAN templates for Oracle backups using Netbackup.
• Performed OS hardening to make UNIX environments more secure. Installed Center of Internet Security (CIS) benchmark tool to gauge security loopholes and hardened the systems accordingly
• Involved in administration of Content Management systems.
• Set up test labs for testing hardware and software compatibility with new releases of OS, application software.
• Monitoring CPU, memory, iSCSI disks, disk controllers, physical disk, HW and SW RAID, multipath, file systems, network using the tool NAGIOS.
• Extensive experience in installing, integrating, tuning and troubleshooting Apache, Tomcat, and WebSphere servers.
• Implemented SUDO, SSH and other security tools and implemented SOX (Sarbanes Oxley) security compliance.
• Developed scripts for automation and monitoring purpose in PERL and Python.
• Monitored and troubleshot different performance related issues using performance monitoring utilities like IOSTAT, VMSTAT, TOP, NETSTAT and SAR.
• Linux backup/restore with tar including disk partitioning and formatting.
• Performed Volume Management using Logical volume management (LVM).
• 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.
• Configured and installed apache web servers on the different Linux and UNIX servers.
• Monitored system logs and important messages for errors and warnings of the hardware and software failure.
• Created file systems on LUNs from SAN environments, which included EMC Symmetrix / Clariion series.
• Configured and troubleshot Symantec Enterprise Security Monitoring Tool.
• Provided Shell scripts to automate to support setup, configuration and operational tasks.
• Provided 24x7 production support for 200+ Linux and Solaris OS.

Environment: Red-Hat Linux Enterprise servers (HP Proliant DL 585, BL 465/485, ML Series), HP-UX,AIX Solaris 8,9, 10, AIX 5.3, 6.1, SAN(NetApp), BladeLogic, Veritas Cluster Server 5.0/6.0, Windows 2003/2012 server, Shell programming, GIT, SVN, JBoss 4.2, JDK 1.5,1.6, VMware Virtual Client 5.1, VMware Infrastructure 5.1, Splunk 5.x.

Confidential, Manhattan, NY

Sr. Linux/Solaris System Administrator

Responsibilities:

• Supporting Linux System Administrator customers with RHEL/SUSE a combination of systems architecture, systems development.
• SAN support from a directory standpoint, technology scaling, server builds, migration and/or transition planning, project planning, and standards validation/development, troubleshooting and problem resolution.
• Installed OAS (Oracle Application Server) on Solaris 9 and its configuration with oracle database.
• Installed and configured of hardware and OS (Solaris 10 and RHEL 4/5) on x86 servers.
• To provide ongoing support in systems management and administration of LINUX/UNIX in global-scale environment.
• Installed and Configured both Kickstart and Jumpstart Servers for the Infrastructure Server Deployments.
• Solaris OS Hardening as per company security standards.
• Installation and use of different Business packages on Solaris Platform.
• Applying OS and security patches for Solaris Operating Environment.
• Administered multiple IBM power7/6/5 p520s, p550s, p570s, p595s, p760s, p770s runningAIX 5.3/6.1/7.1.
• Co-ordinated application team to UpgradeAIX5.2 toAIX5.3,AIX5.3 to 6.1,AIX6.1 to 7.1
• Design, build, install and configure Red Hat Enterprise Linux servers and workstations.
• Administrating and managing windows servers including configuration and troubleshooting of Active Directory, DNS, DHCP, IIS.
• Installation and support of various applications like Web logic server 10, WebSphere 6.1 JBoss 4.x, Apache 2.x, Oracle 9i, 10g, MySQL on Solaris 10.
• Configured Microsoft Active Directory domains and managed Active Directory users on Windows Server 2003 along with LDAP user management with sendmail email configuration.
• Worked on Linux x86, Windows 2003 Advance Server, Samba, Squid, Active Directory Create and administer RedHat Enterprise Linux operating systems to implement on the existing network.
• Responsible for the operation, maintenance and integrity of a distributed, networkedAIXbased environment.
• Migrated Linux based machines and Power off Machines to virtual machines using VMware converter boot CD.PowerHA 6.1 and 7.1 or Cluster Node or later - HACMP.
• Creating and buildingAIXLPAR by PowerVM Tool and VIO mapping.
• Used shell scripting (Including Korn, Bash and Perl) for system/application in automating server task, installing and monitoring applications and data feeding file transfer and log files.
• Good knowledge on BMCBlade Logic Console, worked on IBM Frames p740, p750, p770.
• Started working on POWER 8 Frames - see difference between P7 and P8.
• Creating and buildingAIXLPAR Manually via NIM servers.
• Data migration at Host level using Red Hat LVM, Veritas Volume Manager and Solaris LVM
• Performed 6.1, 7.1AIXOS Installation manually and through Blade-logic Console.

Environment: RedHat Linux 3,4,5,6 Sun Solaris 8,9,10 Sun V440, V890, T5220, T5240 Sparc M4000, Switches, VMware ESX 5.1, oracle 11g, Veritas Cluster Server 5, VMware Virtual Client 5.1, VMware Infrastructure 5.1.

Confidential, Scottdale, AZ

Sr. Linux/Unix System Administrator

Responsibilities:

• The company seeks to continually develop and sell new, high-quality, innovative pharmaceutical preparations, which together with clinical data and medical education create new value for patients and thehealthcaresystem.
• I worked as a technical developer in the PeopleSoft HRMS division of the company to support various PeopleSoft applications.
• Major part of support is dedicated to Production Application Environment.
• Analysis, Troubleshooting and Problem Resolution.
• Provided 24X7 support for large number Production, Development and Test systems.
• Involved in Reviews and Meetings & Teleconferences with clients.
• Data Centers support contains 500 + servers.
• Created, Modified and deleted user accounts using REMEDY AR system tool.
• Supporting various applications on UNIX environment.
• Managing Task plans and uploading into database
• Software Deployments on request basis for production environment.
• Building Task Plans for all S/W deployments and review with Application teams.
• Involved in applying patches and Bundles using Tivoli.
• Backup Monitoring Using Control-M Tool.
• Coordination with offshore team to implement any changes in production Environment.
• Installation of SSH and configuration of keys bases authentication.
• Install and configure Jumpstart Servers.
• Integrating UNIX Directories and file systems using packages like SAMBA. Setting up printers on UNIX / NT machines to work seamlessly across platforms.
• Assisting Development team to provide the information and troubleshooting.
• Working with Development team to troubleshoot Web logic issues.
• Troubleshooting the problems related to Apache web server.
• Working closely with Vendors on Hardware Problems, software fixes.
• Installed and Configured EMC SAN Power path.
• Expertise in use VMware virtual infrastructure.
• Co-coordinating with HP-Unix engineers to resolve high priority issues.
• Setup, maintain and management of user accounts and groups according to the security needs and adding the packages and patches when needed.
• Initiating Backups on daily basis and monitoring the scheduled Jobs backups.
• Clarify Ticket based problem management.

Environment: Red hat 4,5,6 Solaris 7, 8, 9,10, HP-UX 11i, Windows Server 2000 and 2003, Sun Enterprise 10000, 15000, Apache Web Server 1.3.x, 2.x Oracle 8i,9i2, Perl, KSH, Sun v480, v880, E220, IBM p630, p550, power 4 Dell POWEREDGE 700,2650,6650.

Confidential, Little Rock, Arkansas

UNIX/ RedHat Linux Systems Administrator

Responsibilities:

• Categorize all incidents and alerts and preparing knowledge articles following ITIL best procedure.
• Installation Red hat Linux Enterprise Server 5/6 on Dell and HP x86 HW.
• Monitoring system logs and root's email for important messages such as errors and warnings or hardware failure errors.
• Window Administration & UNIX/Linux User ID Administration.
• Installation and configuration of database like Oracle 10g and MySQL
• Security implementation by using ACL's & special file permissions.
• Creating File system and configure to available network through NFS.
• Managing disk file Systems, Server Performance, Users creation and granting file access permissions. Creation of groups, adding Used ID to a group as a primary or secondary group, removing Used ID from a group.
• Trouble shooting User's login & home directory related issues. Managing (adding/removing) disks and partitions (LVM).
• Installation of Web logic, upgraded to service pack updates, installed BEA patches, configuring and creation new domain & services starting & stopping.
• Planned and implementing backup and restores
• Installed and configured the Red Hat Linux 5.1 on HP-Dl585 servers using Kick Start.
• Monitored day-to-day administration and maintenance operations of the company network and systems working on Linux and Solaris Systems.
• Installed and configured the RPM packages using the YUM Software manager.
• Configured logical volumes using logical volume manager (LVM) and also configured mirroring.
• Involved in developing custom scripts using Shell (bash, ksh) to automate jobs.
• Merged the generated reports as per request. Formatted data into required format using UNIX Shell Scripts, SED and Awk.
• Implemented Networking communication skills and protocols such as TCP/IP, Telnet, FTP, NDM, SSH, rlogin.
• Configured Logical Storage Manager (LSM) for root disk encapsulation and implemented root disk mirroring for fault tolerance.
• Configured and administrated NIS, NFS, AUTOFS, NTP
• Extensive experience in Security Patching.
• Also coordinating with storage team and networking teams

Environment: Red Hat Linux (RHEL 4/5), Logical Volume Manager, Veritas Cluster Server, Global File System, Red Hat Cluster Servers, Oracle, MySQL, Sun Solaris 8/9, AIX 5.3L, Windows, Sun Fire 3800/4800/6800 , V890, V880V490, V480 and V210, VCS, Veritas Volume Manager, Veritas Net backup, Ksh/Perl programming, DNS, NIS, NFS, Apache, Tomcat.

Confidential

UNIX/LINUX Administrator

Responsibilities:

• AIX 5.x, Red Hat Linux, RHEL and Solaris servers’ administration.
• UNIX Administration- maintaining around 1000 Production environment including IBM AIX & RHEL 4.x and 5.x servers. Managing their memory/CPU load, Disk Space, swap space, processes etc. running on them.
• Installation, configuration and administration of RHEL 4.x,5.x, AIX 5.1/5.2 and Solaris 8/9 servers.
• Extensive experience on installation, configuration and maintenance of Squid proxy.
• Manage servers using HMC/WebSM and create LPARS and building servers using NIM.
• Configure servers to use HTTP, DNS, NFS, NetBackup, and Storage Disk configuration.
• Experience in deploying and upgrading software packages.
• Controlled the access to users by adding or removing the user from the groups as per the requirements by using LDAP.
• Troubleshoot LDAP server if there is any login issues for the users.
• Used LDAP to setPermissions,as an administrator to allow only certain people to access the LDAP database.
• Network traffic control, IPSec, Quos, VLAN, Proxy, Radius integration on Cisco Hardware via RedHat Linux Software.
• Managed file systems and disk management using Solstice Disk suite.
• Creating andadministering user accounts, SUDO access, etc.
• Managing file systems and modify them on the fly using LVM on AIX and Linux.
• Installed and maintained Puppet-based configuration management system. Designed and deployed the Nagios implementation, implemented Puppet modules to automate configuration of a broad range of services.
• Responsible for installation, configuration, administration, performance tuning, troubleshooting, and maintenance of RHEL 4.x and 5.x systems, Red Hat Enterprise Linux Satellite Servers.
• Use ILO/HMC for remote access of servers on Linux/AIX respectively.
• Maintain & troubleshoot SAN and Fiber card related errors on AIX and storage disks from IBM, HITACHI, and EMC Disk arrays.
• Installed Multiple Pathing (MPIO) software such as EMC Powerpath, HDLM.
• Configured Bonding in Linux and Ether-channel in AIX.

Environment: IBM AIX 4.3.3, 5.1, 5.2, Solaris 8/9, RHEL 3.X, 4.X, Oracle 8i, 9i,MySQL, Apache 2.x, LPARS, VMware ESX Server, Veritas Volume Manager, NIM, Kickstart, HACMP, HMC, WebSphere, IBM P510, P670, P690, P550, P570, P590, HP DL320, HP DL330, HP DL 380s, EMC Symmetrix, Hitachi, IBM arrays, Linux Satellite Servers, Informix 7.x, 11.x, Nagios.