VishnuTeja Kakustham.

Mobile: 682-***-**** acwzqb@r.postjobfree.com .

Objective

A global exposure in a global leading company which provides the opportunity to extend my knowledge and my experience as a System Engineer and my strong scripting skills ensure that I will make a positive contribution to your origination.

Linux Systems Engineer

Administered, maintained Red Hat 3.0, 4.0, 5.0, 6.0 AS, ES, Troubleshooting Hardware, Operating System Application & Network problems and performance issues; Deployed latest patches for, Linux and Application servers, Performed Red Hat Linux Kernel Tuning.

Experience configuring, monitoring, upgrading and maintaining systems hardware, software and related infrastructure.

Installed and monitored VMware Virtual environments with ESX4 ESX 3.x, ESX iservers & Virtual Center 2.X.

Installed, configured and administration of Linux services like DHCP, DNS (BIND, MS, TCP/IP,SNMP, SNS), web (Apache, IIS),FTP (NFS), mail (SMTP, IMAP, POP3), and file servers on Linux servers.

Troubleshooting Linux network, security related isuues, capturing packets using tools such as IP tables, firewall, TCP wrappers, NMAP.

Work Experience

System Engineer (Aug 2011 – Feb 2014 ).

Prach Innovative Design pvt ltd. – Hyderabad.

I have 2 years 6 mnths of experience as System Engineer in Prach Innovative Design Pvt. Ltd.

Installation, Maintenance, Administration, troubleshooting, Testing, Tuning, Upgrading and loading patches of Red Hat Enterprise Linux 5/6 and Solaris 9/10 systems on both physical and virtual servers.

Performed automated installations of Operating System using kickstart for Red Hat Enterprise Linux 5/6 and Jumpstart for Solaris 9/10 Linux.

Creating Zones, containers, LDOMs on Solaris servers, creating zpools, ZFS file system installing Oracle, Java based applications on them.

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

Installation of packages RPM, YUM and configured SAMBA server for Windows and Linux connectivity.

Managing systems routine backup, scheduling jobs like disabling and enabling cronjobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.

Remote system administration using tools like SSH, Telnet, and Rlogin.

Installation, configuration and administration Linux servers and services (Tomcat, DHCP, DNS, TFTP, NFS, Apache)

Extensive use of Veritas Volume Manager for Disk management, file system management on Sun Solaris environment.

Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager & Solaris Volume Manager. File system Tuning and growing using VERITAS File System (VxFS), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.

Setting up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy

Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota.

Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring.

Creation of Logical volumes (LVM) for Linux operating systems and Configuring, adding Oracle ASM disks to database server.

Installed and configured VNC server/client

Experience in Configuring and Managing SAN Disks, Disk Mirrors &RAID 0, 1 & 5 Levels.

Involved in development, user acceptance, and performance testing, production & disaster recovery server.

Experience in Creating and modifying users and groups with SUDO permission.

Administered Linux servers for several functions including managing WebSphere, Apace/Tomcat server, mail server, MySQL database, SVN, build and firewalls in both development and production.

Job automation using Blade Logic, Puppet Tools and Troubleshooting servers &application related issues.

Perl and shell scripts to collection and summarize server information for server monitoring improvement project.

Maintained and documented all the errors and logs that were new to the environment shared it with the team. Experience in Disaster Recovery and Planning.

Server Consolidation and Migration of Applications on Oracle and Java Applications.

Installed and monitored VMware Virtual environments withESX4ESX 3.x, ESXi servers & Virtual Center 2.X.

Log file was managed for troubleshooting and probable errors.

Responsible for reviewing all open tickets, resolve and close any existing tickets.

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 on 2,3,4 node clusters.

Worked on E-commerce based application products related to internet marketing, credit card transactions.

Trouble shooting of day to day system and user problems including resolving issue tickets and documentation of the issues and their fixes

Support hotline call, Global on-call and 24X7 pager duties, Database Backup and Recovery, Performance Monitoring and Tuning.

Environment:Sun Solaris (8,9,10), RHEL Linux (Red Hat 3,4,5), Logical Volume Manager, Veritas Volume Manager, VM ware, SVN, Blade Logic, VNC, RAID, Tomcat,Apache,MYSQL, Oracle, Java, Shell, Pearl, SUDO, YUM, SAMBA, RHEL, Web logic servers, TCP/IP, NIS, NFS, DNS, SNMP, 24X7

Education

Masters in Computer Science. ( Aug 2014 – Dec 2015 )

UNIVERSITY OF CENTRAL MISSOURI

Masters GPA – 3.0.

Related courses : Advanced Operating systems, Adv Networking and security, Adv Databases, Sas programming, BigData.

Bachelors in Computer Science. (JUL 2007 – APR 2011 )

JNTU – Sreedatta – Hyderabad.

Related Courses : Unix, Neworking, Databases, Algorithms.

Technical Knowledge

Operating System : Linux, Unix, Windows 8/7/Vista/XP/2003/2000/NT/98.

Programming Languages : Java, C, C++,

Scripting languages : Bash, Shell, Python, Ruby,Perl.

Source Version Control : GIT, GitHub, SVN.

CI/ CD : Jenkins, Hudson.

Build Tools : Ant, Maven

Monitoring Tools : Nagios, Zabbix.

Databases : Oracle, My SQL Server.

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