NARESH KODURU

Experience Summary

Over *+ years’ Experience in IT industry comprising of Linux Systems Administration and Software Configuration Management (SCM).

Experience in Linux Administration (Installation, Configuration, Tuning and Upgrades of Linux (Red Hat and Oracle).

In-depth understanding of the principles and best practices of Software Configuration Management (SCM) .

Experience with Linux/UNIX environments.

Strong knowledge of DNS, DHCP and IP Addressing. Installation and configuration of various services like DNS, DHCP, NFS, Send mail, Apache Web Server, SSH, HTTP, RPM package management.

Experience in administering Active Directory and group policies.

Experience is using Tomcat, Microsoft Azure, JBOSS, Web logic and WebSphere Application servers for deployment.

In-depth knowledge of Linux operating system functionality, kernel tunable, file systems, and server hardware.

Comprehensive knowledge of DNS, scripting and Windows environment.

Strong understanding of networking concepts and implementation of Linux-based infrastructure solutions.

Advance knowledge of Java based application Server architectures like MYSQL, Tomcat, NF, NTP, SSH, DNS, and SNMP.

Knowledge of TCP/IP protocols, scripting and software development.

Familiar with Windows server platform and Windows, Linux systems.

Involved in writing shell scripts for compilation and deployment process.

Good Interpersonal Skills, team-working attitude, takes initiatives and very proactive in solving problems and providing best solutions.

Contribute to the development and implementation of technology standards.

Provide input to system and database performance and management.

Participate in project development as required providing project plans, documentation and training material as necessary.

Contribute to team activities and complete assigned tasks within prescribed deadlines

Keep abreast of IT industry trends and developments by updating Industry qualifications and reading appropriate literature.

Undertake appropriate IT technical research and investigation as needed

Experience in installing, integrating, tuning, and troubleshooting Tomcat WebSphere and Web logic application server.

Installation and configuration of MySQL on RedHat Linux cluster nodes.

STRENGTHS:

Strong analytical skills in both the technical and business arenas.

Quick learner, excellent problem solving skills, highly motivated and adaptable.

Strong Analytic ability and Capable of working in a large project Team.

Hardworking, honest towards the duties and responsibilities.

Technical Summary:

Operating Systems

RHEL 4/5/6/7 SUSE,CentOS IBM AIX 5.2/5.3 and Solaris 8/9/10

Scripting

Bash and Shell Scripting

Networks

NIS,NIS+,DNS,DHCP,TELNET,FTP,Rlogin

Network Protocols

TCP/IP,PPP,SNMP,SMTP,DNS,NFSv2,NFSv3

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

Tools

Smit,Linuxconf,Vmstat,Esxi,IOstat,top,traceroute,SAR

PROFESSIONAL EXPERIENCE:

CHASE BANK, COLOMBUS OHIO. Feb 2016 – Present

Linux Admin

Chase Bank serve nearly half of America’s households with a broad range of financial services, including personal banking, credit cards, mortgages, auto financing, investment advice, small business loans and payment processing.

Responsibilities:

Involved in user interactions, requirement analysis and design for the interfaces.

Installed, configured, and maintained WebLogic 10.x and Oracle 10g on AIX & Redhat Linux.

Configuring multipath, adding SAN and creating physical volumes, volume groups, logical volumes.

Good knowledge of Chef, Puppet, Perl, Python, Apache, Big Data, AWS, HTML, LDAP, DNS.

Installing and configuring Apache and supporting them on Linux production servers.

Troubleshooting Linux network, security related issues, capturing packets using tools such as IPtables, firewall, TCP wrappers, NMAP.

Preparing servers for Oracle RAC installation which includes tuning the kernel, agent installation, adding NAS storage.

Worked on resolving production issues and documenting Root Cause Analysis and updating the tickets using BMC Patrol.

Monitored server and application performance & tuning via various stat commands top, vmstat, nfsstat, iostat, tuned I/O, memory, etc.

Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM)

Prepared the design document for Document Management Module and User Management Module.

Followed waterfall methodology for application development.

Identified the Business Requirements of the project.

Preparing the Design document by reviewing the Solution Requirement Specifications.

Working on the Change requests and involved in Construction phase.

Managing Machines with/without passwords.

Writing Test Cases from Function Specifications.

Handling Status Calls to explain the progress of defects.

Providing reports and performing Cleanups requested by client.

Planned, scheduled and Implemented OS patches on Linux boxes as a part of proactive maintenance.

Worked with other IT teams, customers (users), and other managers in helping build and implement systems and standards.

Created and Configured Virtual Machines,DHCP,DNS on ESXI and Binding all Vm’s to Active Directory.

Capable of Creating new database instances & managing table Spaces, users & roles.

Conversant in XML related technologies.

Experience in developing dynamic web based user interfaces using HTML and Java Script.

Environment: ESXI,Active Directory, DNS, Struts 1.0, XML, XSLT, JUnit, Eclipse, ANT, Web logic server 9.2, Oracle 9I, CVS.

Hyundai, New Rochelle Aug 2014 – Dec 2015

UNIX/Linux Administrator

Responsibilities:

Installed RedHat Linux using kickstart.

Created, cloned Linux Virtual Machines, templates using VMware Virtual Client 3.5 and migrating servers between ESX hosts.

Managed systems routine backup, scheduling jobs, enabling Cron jobs, enabling system logging and network logging of servers for maintenance.

Performed RPM and YUM package installations, patch and other server management.

Installed and Configured Active Directory service on Windows 2012 R2 server

Installed and Configured DNS service on windows 2012 R2 server

Documented all setup procedures and System related Policies (SOP's).

Provided 24/7 technical support to Production and development environments.

Administrated Active Directory,DHCP, DNS, and NFS services in Linux.

Created and maintained user's accounts, profiles, security, rights disk space and process monitoring.

Provided technical support by troubleshooting Day-to-Day issues with various Servers on different platforms.

Diagnose, solve and provide root cause analysis for hardware and O/S issues

Run prtdiag -v to make sure all memory and boards are online, check for failure

Supported Linux and Sun Solaris Veritas clusters.

Notify server owner if there was a failover or crash. Also notify Unix Linux Server Support L3

Check for core files, if exist send to Unix Linux Server Support for core file analysis.

Monitor CPU loads, restart processes, check for file systems.

Installing, Upgrading and applying patches for UNIX, Red Hat/ Linux, and Windows Servers in a clustered and non-clustered environment.

Helped and installed system using kickstart

Installation & maintenance of Windows 2000 & XP Professional, DNS and DHCP and WINS for the Bear Stearns DOMAIN.

Use LDAP to authenticate users in Apache and other user applications

Remote Administration using terminal service, VNC and PCanywhere.

Create/remove windows accounts using Active Directory

Provided end-user technical support for applications

Maintain/Create and update documentation

Attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment.

Provide remote support for Linux servers and maintaining SLAs, Performance tuning and enhancing.

Environment: Linux, Unix, Windows 2000, Tomcat/Apache, Active Directory, LDAP, Kickstart

HSBC Bridgewater, NJ May 2012 – July 2014

UNIX Administrator

HSBC, one of the world’s largest banking and financial services organizations, has been connecting Americans to global opportunities since 1865. It serves customers from offices and branches in cities across the United States including New York, Los Angeles, Chicago, Atlanta, Houston, Seattle, Miami, San Francisco, and Washington, DC.

Responsibilities

Provided on-call support by rotation to provide 24x7x365 support within a 3000 server environment.

Administration of RHEL 5, 6 and IBM AIX which includes installation, configuration, testing on both physical and virtual machines.

Setting up cron schedules for backups and monitoring processes.

Automated server building using System Imager, PXE, Kickstart and Jumpstart RHEL Servers.

Excellent in patches and packages installation on Linux & AIX Environment

Setup and configure failover load balancing using IP bonding for network cards.

Experience in iptables commands including those used to add, append, delete, insert, or replace rules within a particular chain, parameters are required to construct a packet filtering rule.

Perform system installs and performance tuning, configure and administer Unix.

Perform day to day LVM operations and System Admin tasks

Set up and troubleshoot issues with Secure Shell in the environment to accommodate script automation and password changes

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 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 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.

Configuration of VIO server and VIO clients from Hardware Management Console.

Knowledge of ITIL and Business Continuity processes, experience with tape technologies, Information Life Cycle Management.

Installation and configuration of Redhat Device Multi pathing.

Configuring RAID and build the new server using the image on system imager server with PXE boot.

Monitored Linux server for CPU Utilization, Memory Utilization, and Disk Utilization for performance monitoring.

Environment: Linux, RHEL, Esxi, AIX, SAN, Redhat

Systems Administrator Oct 2010 - May 2012

Expedia Inc., Bellevue, WA

Expedia.com is a travel website owned by Expedia Inc. It enables the users to book airline tickets, hotel reservations, car rentals, cruises, vacation packages etc., Worked as a part of the eCP BI operations and solutions team. Worked on building the dashboards, reports and data feeds that have visibility at the highest level.

As a Systems Administrator at Expedia inc, I performed the following tasks:

Supported various High Performance Benchmark activities from Pharmaceuticals, Automobile, and Manufacturing industries, worked with various project managers during these benchmark activities.

Implemented Puppet modules to automate configuration of a broad range of services.

Provided 24/7 support coverage, pager support and weekend support.

Created a PXE Boot environment with all the necessary services such as DHCP, TFTP, PXE, OS image sources for four different OS versions.

Build and managed Red Hat Enterprise Linux Satellite version 5.5 provisioning system for consistent OS builds and patch management

Configured Red Hat Satellite for clustered configuration.

Configured the Remote Console service to the servers.

Created Kick start scripts as per the user requirement and performed few test deployments.

Modified the Kick starts to reflect the kernel parameters, file system needs for various server environments such as for web servers, Database servers, App servers.

Implemented automated server provisioning using kick start and puppet

Assigned the Server Build Tasks, DHCP Management, Kick start Modifications and OS image Management to each team member.

Successfully deployed all the servers as per the customer need

Validated the servers to check they meet the customer requirements.

Configured VERITAS Cluster Servers on the Database servers and App servers

File system tuning, growing and shrinking with VERITAS File system 4.x/5.x (Vxfs)

Implementation of High availability using Veritas Cluster Server 5.0 and 5.1

Installation, Configuration and Administration of VERITAS Storage Foundation Suite, VxVM, VxCS and Vxfs for Solaris and Linux Servers.

Worked on VMware ESX and deployed VMware and virtual center and templates.

Installing and setting up Oracle and Websphere on Linux for the development team.

Worked with Database administrators to tune kernel for Oracle installations on Linux.

Created, deployed and managed BigIP F5 load balancer nodes and pools

Configuration of root and customer volume groups.

Implementation of SSH for secure transfers and implementation of PKI between servers to enable password less logins between servers.

Configured and administered Lpar’s/DLpar’s.

Management of pre-installation steps to include location, power and network setup.

Handling internal trouble tickets and assigning to proper departments for resolution.

Installed Remote connection and Terminal Services. Managed server authentication using centrify tools

Installed and configured IIS Web server on Windows 2003 Servers.

Involved in Installing and configuring of NFS.

Organizing DR (Disaster Recovery) server tests to make sure the infrastructure is correct and the DR servers are working as expected as in production servers.

Worked with storage teams to split the R1 and R2 disk groups to enable the SAN disks to read/ write mode on DR servers and worked with DBA’s and software system analyst to troubleshoot and testing the functionality of their applications for both Prod and DR servers.

Package and patch management on Sun servers.

Kernel tuning, Writing Shell scripts for system maintenance and file management.

Environment: ESXI,Active Directory, DNS, Struts 1.0, XML, XSLT, JUnit, Eclipse, ANT, Web logic server 9.2, Oracle 9I, CVS.

Jr. LinuxAdministrator July 2009-August 2010

D.V.Polymers India

D. V. Polymers India Private Limited, have been engaged in manufacturing, supplying and exporting an exclusive array of PTFE Lined Products comprising of Valves, Vessels, Pipes & Fittings and PTFE Products. These products are highly acclaimed by the clients for their sturdy construction, corrosion resistant and optimum performance.

Responsibilites

• Created user accounts, groups, files, and directories within Linux Server.

• Managed user accounts, granted permissions, and applied new patches.

• Installed, updated and configured Apache applications when needed .

• Experience deploying web/application servers like Apache and Tomcat .

• Installed and Configured Nagios system, performed regular and networking monitoring .

• Experience with Cloud watch for system monitoring .

• Created and Administered Cronjob and Bash Shell Scripts .

• Used partition tools to create local filesystem .

• Configured Elastic IP .

•Performed remote server administration through SSH .

•Administer SeLinux on Linux Servers .

• Participated in projects that involved imaging and deployment of computers.

• Configured Firewall to allow Applications to run .

• Installed virtual machines and patched latest versions of Operating Systems.

• Tested, Maintained, Diagnosed, and resolved trouble shooting tickets, hardware, software, or other network and system problems, and replaced defective components.

Environment : Linux, Webserver, (Tomcat/Apache), Esxi, Operating systems

EDUCATION

Masters in Software Engineering – India.

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