SUMMARY

• Having 5 +years of IT experience in Linux System Administration under heterogensseous environment of Redhat at Linux 5.x/6.x/7.x, CentOS6, Ubuntu 14, VMware4/5/6 and Windows 2003/2008/2012 R2.
• Expertise in Installation, Configuration and file system management and Logical volume Manager (LVM) with multiple RAID (0,1,5,6) Levels
• Extensively worked on administering NFS, DNS, DHCP, and Mail Servers.
• Experience with file/disk encryption technology/products on servers, worked on File System Encryption.
• Extensive experience on patching up Unix/Linux servers & decommissioning unwanted old servers using virtualization techniques to make the client environment more reliable & profitable.
• Experience with Microsoft Server Operating Systems 2008 and 2012.
• Proficient in creating new Weblogic servers, clusters, JMS queues, messaging bridges and destinations, trouble shooting various Weblogic issues and licensing issues and fine tuning the server performance.
• Experience in RPM Package Administration for installing, upgrading and checking dependencies in RedHat.
• Experience in building servers using Kickstart for Linux, Jumpstart for Solaris.
• A MongoDB query selector is like the where clause of an SQL statement.
• Expertise in DevOps, Release Engineering, Configuration Management, Cloud Infrastructure Automation, it includes Amazon Web Services (AWS), Ant, Maven, Jenkins, Chef, SVN, and GitHub.
• Worked with product teams to improve documentation of Ansible playbooks.
• Strong experience in writing Bash and Perl scripts to automate business process.
• Experience in Performance Monitoring of Kernel parameters, Memory, Disks, Network.
• Developing Docker images to support Development and Testing Teams and their pipelines; distributed
• Worked on installing and configuring VMware/Esx Servers for virtualizations.
• Skilled at optimizing large complicated SQL statements.
• Strong proficiency in TCP/IP protocols.
• Hands on experience in implementing Hitachi Universal Replicator .
• Managed infrastructure projects assigned to the data center team by making sure that new server racks were properly cabled and PDUs installed, adhering to company standard.
• Good Knowledg about Splunk architecture and various components (indexer, forwarder, search, deployment server)
• Analyzing and reporting upon JIRA usage and activity.
• Devise strategies for Disaster Recovery Management (DR), including planning and designing servers for back up, recovery and archival of server / database information.
• Work support to all Linux system problems 24x7 On - call Support and resolving them in timely basis and ensuring high availability.

TECHNICAL SKILLS

Operating Systems: Windows, Mac OS X, UNIX, LINUX (RHEL), REDHAT, Linux Mint, Fedora, Ubuntu 14.04,Citrix 4.x,5.x,VMware ESX .

Cloud Computing: AWS (EC2, ELB, S3)

Networking Protocols: TCP/IP protocol stack, UDP, IPv4-IPv6.

Scheduling Tools: Autosys, Crontab, Cronjobs.

Monitoring tools: Splunk 6.0, Splunk 6.2.

Identity & Access Management (IAM): Centrify 5.1.1, Identity management, Centrify, Windows Active Directory, NIS,NIS+

Source Code Management: Gitlab,GitHub

Configuration Management tools: Jenkins, Chef, Puppet, Ansible, Docker.

Languages/Scripting: C, C++, Perl scripting,Power Shell scripting, SQL, Java/J2EE, Python, Bash.

Project management Tool: JIRA, Remedy, HP Quality Center.

Web servers: Web logic, WebSphere, Apache Tomcat, JBOSS.

Database: Oracle 12 c, SQL SERVER,RAC MYSQL, DB2,Oracle.

Packages: Ms Office Products

Windows Server: Windows Server 2008R2 /2012R2

Others: MS Outlook, Agile, SCRUM, Load Balancing. Centrify

PROFESSIONAL EXPERIENCE

Confidential, Omaha, Nebraska

Linux/Middle ware Administrator

Responsibilities:

• Installing, Configuring and OS Upgrades of Server systems such as Red Hat enterprise servers (version 5, 6 & 7), CentOS, Microsoft Server 2008 & 2012 etc.
• Experience in using Puppet & Chef for OS configuration & automation.
• Responsible for managing System Support Department, administration for Suse Linux, AIX (5.3), Solaris (9&10).
• Installing and configuring services like DNS, DHCP, NFS, Send mail, Apache Web Server, NIS, Samba, SSH, Telnet, Yum, RPM package management.
• Worked with redhat Enterprise Linux 6 Security Technical Implementation Guide(STIG) to publish as a tool to improve the security of Department of Defense(DOD) information system.
• Experiences in Server build using Kick-start, Jumpstart .
• Responsible for administration, development, and support of web-based application running PHP and Perl on Apache with Informix and MySQL databases.
• Instituted Ansible for configuration management and automation across four environments
• Experience working with Salt or Ansible for orchestration.
• Wrote Perl Scripts that connected to Informix databases using Perl DBI.
• Improve Perl deployment at the Firm.
• I additional orgnizedand delived multip internal technical training for Hitachi and its business partners to enable broader field execution.
• Experience in Hitachi Tuning manager for identifying the underlying the issues in SAN.
• Using Docker, Jenkins, VMWare, RHEL, Satellite, OpenShift, Kubernetes, Artifactory, Ansible & GitLab.
• Worked on Version control systems like Subversion, GIT, CVS, ClearCase and Perforce.
• Maintenance and documentation of Enterprise applications in Python, Java, and PHP
• UsedPythonscripts to update the content in database and manipulate files.
• Nagios architecture is simple enough that write new plugins is fairly easy in the language of your choice.
• Administered network workstations using TCP/IP protocols in UNIX-based operating system.
• Work experience for protocols in Layer 2 and up in the OSI stack including work in LTE (Long Term Evolution) networks,TCP/IP protocol stack.
• Working knowledge of Data Center Operations hardware, software and processes as well as supporting JES2 and MVS commands in a large scale Data Center environment.
• Maintain an optimal physical Data Center environment.
• Installed and ConfiguredRedHat LinuxKickstartusing Cobbler and configuredYUM repositoriesfor different Minor Versions of Linux.
• Work with VMware Infrastructure Client in supporting our Windows 2008 & 2012, Linux Enterprise 5 Server environment.
• Creating and configuring the logical and physical Active Directory structures.
• Creating and configuring Active Directory sites and site-links.
• Develop solutions/tools for product upgrades and patching.
• Domain Controllers running Windows Server 2012 R2 block the creation of duplicate service principal names (SPNs) and user principal names (UPNs).
• Knowledge in AD architecture and infrastructure (LDAP, Directory Replication, group policy, security, schema changes, etc.)
• Executed daily production and development administration and changes in an end-to-end VMware virtualization stack with zero customer impact.
• CI/CD software can help teams advance new changes through a series of stages automatically to reduce the time to feedback and remove friction from the process.
• Maintaining Hitachi AMS, Thunder and IBM DS and XIV storage systems.
• Installation and monitoring Virtual environments with ESXi 4.0 5.0/5.5/6.0 Servers and Virtual Center
• Evaluated the functionality and usability of Symantec Endpoint Virtualization, Citrix XenApp .
• Day-to-day maintenance, user account creation, troubleshooting and administration of the NIPR and SIPR Remedy
• Provide guidance on best practices for server configuration, Patching and system management
• Working with IT automation and DevOps approaches using tools such as Puppet, Chef, etc.
• Working on different business times and supported 24x7 on call rotation to resolve application issues.
• Worked with Cisco Jabber deployments for all supported platforms and customizations, Cisco Jabber Guest solution implementation and support in an Expressway
• Performing Post Build activities like Setting up Backup interface/ NIC bonding/ Loading additional packages/ joining the server to Active Directory etc. supports RAID0, 1, 5, and 6 via its software implementation, named RAIDframe.
• Working as a team member, supporting to team and client.
• Develop and manage middleware performance tuning tools Regards.

Environment: Red Hat Linux (RHEL 5/6/7), Python,AWS,GIT, SAN,Splunk 6.2. MySQL, EMC7,TCP,Citrix4.x,5.x TCP/IP, BMC Remedy,Ubuntu 14.0.,Cisco Jabber,Centrify5.1,Logical Volume Management (LVM), Hitachi, Weblogic, Remedy 9.0,LDAP, Oracle 12c, AWS, VmwareESXi, windows server 2008 & 2012. Python,Red Hat Satellite Server, Oracle RAC, Veritas Cluster Server, Ubuntu 14.04

Confidential, Baltimore, Maryland

Linux system Administrator

Responsibilities:

• Maintaining Redhat (RHEL) enterprise servers (version 6 and 7).
• Troubleshooting account lock outs, fixing low disk space and assisting with anything related to the operating system and server.
• Installed, configured and administered WebLogic Server 9.2/10.3 on Red hat Linux 5/6, and Sun Solaris 9/10 in various environment including dev, QA, Stage (UAT), and prod environments.
• Supported on call schedule for Production support 24x7 SLAs (service level agreement)
• Exceptional ability to work independently with a team of Python coders
• Assisted in designing and programming of object oriented databases with Python and other languages.
• Experience with VMware Virtualization using ESX hypervisor of Vsphere.
• Managing Laureate’s Red Hat Enterprise Linux Environment.
• 24x7 on-call support.
• Installing/configuring message/file transfer protocols: FTP, SFTP, SSH, SSL.
• EM7 lets you group these by importance and then rank them by escalation priority.This helps ignore what is not important and focus .
• Worked closely with data center management to determine workload and resource commitments.
• Involved in migration and re-engineering of MySQL database from 4.1 to MySQL 5.1.
• Proficient in developing and maintaining of functions, procedures, triggers, indexes using MYSQL database programming language.
• Automated Data Import Script using shell scripting, PHP, MySQL and regular expressions.
• MySQL database backup and recovery strategies and Replication and synchronization.
• Provided technical support to teams for development and administration of BMC Remedy applications as per business requirements.
• Experienced in Database optimization and developing stored procedures, Triggers, Cursors, Joins, Views, Cursors and SQL on databases:MySQL, Oracle10g,OMWB tool.
• Installed and configured MySQL on Linux and Windows environments.
• Managing/Troubleshooting MySQL 5.0.22 and 5.1.24 in production and developer environments on both Linux (5.0, 5.1) and Mac OS X.
• Effectively configured MySQL Replication as part of HA solution.
• Performance Tuning on a daily basis for preventing issues and providing capacity planning using MySQL Enterprise Monitor.
• Installed and configured Hudson/Jenkins for Automating Deployments and providing an automation solution.
• Integrated GitLab into Jenkins to automate the code checkout process.
• Strong understanding of TCP/IP networking environments.
• Expert level understanding of vendor and non-proprietary implementations of TCP/IP.
• Network protocols (TCP/IP) and communication protocols in LAN/WAN environment.
• Nagios Plugins release are very basic, developing from the Git repository requires additional software to be installed.
• Nagios documentation for information on how to configure such processing. add it to the official 3rd party plugin repository,Nagios Exchange
• Managed VDI assignments and user sessions using VMware Vsphere and Citrix XenCenter
• Upgrade, monitor and maintain remote access Citrix farm running on Presentation Server 4.5.
• Created application packages (.msi files) in Citrix for installation on multiple servers
• Installation of VMware PowerCLI 10.1.1.
• PowerCLI is compatible with multiple versions of Windows PowerShell.
• Esx patching& VMware tools upgradation and Installing the Esx version in physical servers
• Server down & kernel panic issues and scanning the storage if required.
• Involving with backup team when backup fails between clients and master servers.
• Effectively working with patching like kernel patching.
• Well versed with patching tools (Redhat satellite, Ubuntu Landscape, Landesk).
• Migrating the VMs from old hardware to new hardware by using VMware replication.
• Server builds based on customer requirement and server decommissioning and adding new disk & creating the file system.
• Removing the instances which power off state by taking confirmation from server owner.
• Create and maintain documentation on Linux server builds, policies and procedures, ensuring they are accurate and current.

Environment: RHEL 6/7, RedHat Satellite Server, AXI 5.2 & 6.1, Python,SAN, MySQL, EMC7,Splunk, Citrix4.x,5.x GIT, AWS, Ubutu,Vmware vSphere 6.0, Logical Volume, Centrify 5.1.1, Centrify,Management,NetApp(LVM), Weblogic,, Enterprise application Platform, HP Bladesystem, NoSQL,Oracle RAC,AWS, Python, Veritas Netbackup, VMware power cell 10.1.1Apache, LDAP.

Confidential, Dallas, Texas

Linux System Administrator

Responsibilities:

• Installation and configured RedHat Linux (6.x), Solaris8/9(X86).
• Performed Linux administration tasks such as installing, configuring, monitoring and performance tuning.
• CreatedAWSS3 buckets, performed folder management in each bucket, managed cloud trail logs and objects within each bucket
• Splunk configuration that involves different web application and batch, create Saved search and summary search.
• Performing Post Build activities like Setting up Backup interface/ NIC bonding/ Loading additional packages/ joining the server to Active Directory etc.
• Knowledge on Configuration files in Splunk (props. conf, Transforms. conf, Output.conf).
• Created Perl Script to Orchestration of Components and server node to monitor detailed about callerApp. Server performance testing on HP blade server Linux. Experienced in Performance Tuning and Query Optimization inAWSRedshift.
• Monitoring platforms monitor containers in addition to other hosting architectures and use Nagios to monitor your Linux environment.
• Performed MySQL Replication setup and administration on Master-Slave and Master-Master.
• Documented all servers and databases.
• MySQL database administration on a large scale MySQL installation.
• MySQL processes, security management and queries optimization.
• Migrated Oracle 9i databases to MySQL using the MySQL Migration Toolkit.
• Provide post-sales phone and email support to Centrify Server Suite customers.
• Working on Perl modules, turning them in to RPM’s, so they can be deployed on new VM’s and Build automatic provisioning system with kickstart and Puppet.
• Majorily worked on the Centrify Creating new groups, users and service accounts in Centrify and User,Group and service Account Creation.
• Instituted configuration and systems management via Ansible; inventoried and standardized system configurations and package installations; trained other team members in the use of Git and Ansible
• Used python library Beautiful Soup for web scrapping
• Trouble connecting to LDAP server ensure below service are running.
• Deployed the applications on multiple Weblogic Servers and maintained Load Balancing, High Availability and Fail over functionality.
• Day to Day activity include with zoning the newly build servers to brocade ( edge and core switches) and allocating SAN to the servers.
• Participated in the development, implementation and testing of a SAN based multi-site Disaster Recovery and Business Continuity with EMC storage arrays using SRDF solution.
• Worked recently on the project for a new application in the existing application as a Lead which involving of building up OS, deploying applications on Weblogic servers, configuring IIS and Sunone webservers. esponsible for creating, configuring and maintaining various Weblogic 9.1, 9.2, Tomcat and Jboss environments on UNIX and Windows platforms.
• Configured LDAP clients on server test and troubleshoot for maintaining network and data security.
• Created automated shell script to check out code, build and deploy with Cron job.
• Good experience in creating SQL server data objects like tables, Views, Procedures, functions and triggers.
• Experience in writing and tuning SQL and PL/SQL stored procedures.
• Linear RAID, the chunks are allocated sequentially from one member drive, going to the next drive only when the first is completely filled.
• Experience in developing distributed software systems using NOSQL technologies such as Cassandra
• Automated daily tasks through korn and Perl scripting.Examples include: reporting invalid login activity, mailing errors from error report, removing old print files.
• Involved in Data Migration from Remedy 6.3 to 7.1.
• Regularly Summarized and sent performance reports to management on Word and Excel formats as requested for security planning.

Environment: RHEL 5/6, RedHat Satellite Server, 10/11,AWS, Logical Volume Management (LVM), MySQL, MonogoDB, SAN,Weblogic AWS, Citrix Centrify, VmwareESXi, HP Proliant DL380/DL580/BL 460c, Splunk Oracle RAC, Apache, LDAP.

Confidential

Jr. System Administrator

Responsibilities:

• Installation ofRedHat Linuxbased servers with in development, test and production environments.
• Performed standard system administration tasks, such as patching, software and hardware upgrades, troubleshooting and problem resolution.
• Linux - Linux installation, configuration, maintenance, and troubleshooting using CentOS, RedHat, Debian, Ubuntu.
• Installing and configuring various services like DNS, DHCP, NFS, Send mail, Apache Web Server, NIS, SSH, Telnet, http, RPM Package Management.
• Develop Linux/UNIX shell scripts to accomplish redundant tasks to simplify in distributed administration.
• Setting up and maintaining Domain Names System (DNS) servers.
• Implementation of advanced partitioning schemes like Software RAID (0,1,5,6) and LVM.
• Creating users with root’s privileges and also users with limited root’s privileges called the sudo users.
• Experience in writing and tuning SQL and PL/SQL stored procedures
• Developed automated scripts/system monitoring tools/ testing tools using shell and Perl Scripting.
• Planned and performed the upgrades to Linux (RHEL 4&5, SuSE9, Centro’s) OS and hardware maintenance like changing memory modules, disk devices & SCSI devices.
• Setting up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy.
• Creation of users, mounting home folders and respond to general user queries regarding mounting issues. perform system monitoring, upgrades, performance tuning and backup and recovery
• Advance level of experience in researching OS Issues, applying Patches and opening the Vendor Tickets like Remedy.
• Performed day-to-day Linux administration such as user accounts, logon scripts, directory services, file system shares, and permissions etc.
• Setup NFS, Samba and FTP File sharing setup on Linux and Windows servers.
• Maintaining VMware ESX servers using VMware Virtual center
• Supporting web development and database teams for day to day operations

Environment: RHEL 5/6, RedHat Satellite Server, VmwareESXi, Logical Volume Manager, Sun & Veritas Cluster Server, Global File System, RedHat Cluster Servers.