SUMMARY

• Red Hat Certified System Administrator with years of experience in installing, configuring, monitoring, upgrading, troubleshooting complex systems, applications and network issues.
• Highly motivated in Application Support. Determine root cause, take proactive measure and remediate issues to prevent future occurrences.
• Comfortable working independently or on a team with ability to understand, executes, and provides enterprise solutions.
• Excellent client relation skills and drive to complete work in highest quality assurances.

TECHNICAL SKILLS

Operating System: Red Hat Linux 4.x, 5.x, 6.x and 7, IBM AIX, Sun Solaris, Windows server 2000, 2008 and 2012.

Hardware: HP ProLiant servers DL 360, 380, and 580 (G4, G5, G6, G7, G8) servers and also Blade Centers C3000 and C7000, Dell Drac, Cisco Blades, EMC Symmetric, Hitachi arrays, Backup Devices, Ethernet Hubs, Routers. SUN Enterprise 450, Sun Fire 4500, V880, V480, E420R, E450, E250.

Web/Application Server: Apache, Tomcat, LAMP, WebSphere, WebLogic, Web - Method, MQSeries, IBM HTTP Server.

DevOps Tools: Jira, GIT, BitBucket, SourceTree, Eclipse, Jenkins

Networking: TCP/IP, NIS, NFS, DNS, DHCP, Cisco Routers/Switches, WAN, SMTP, LAN, FTP/TFTP.

RDBMS: Oracle Database 7.x/8.0/9i/10g/11g, IBM DB2, MS-SQL Server 7.0/6.5, Sybase and MySQL, Mongo DB.

Application: Symmetric VERITAS cluster, Veritas NetBackup, Veritas Volume Manager, LVM, ESXi, VMware vCentere, Red hat Cluster Suites, OpenStack, Cloud Stack, Ganglia, Munin, Splunk, Genoes, Cfengine, Puppet.

Programming Language: Java Scripts, XML, HTML, Bash Shell.

PROFESSIONAL EXPERIENCE

Confidential, Houston, TX

Tech Ops Analyst

Responsibilities:

• Supported thousands of Red Hat servers; deployed Kernel Patches and Rollback plan on RHEL 4, 5 and 6 on a day to day basis.
• Configured YUM repositories to install and update packages on Red Hat Linux
• Performed day to day administration and troubleshooting Network, Disk space, and file system related issue on Red Hat Linux.
• Create, maintain and supported various file systems such as EXT4, GPFS, and Vxfs on RHEL servers.
• Performed upgrade and managed VERITAS Cluster Service 5.0 and 5.1, VERITAS File Systems and VERITAS Volume Manager.
• Manage systems using remote consoles HP ILO, Dell Drack, and Cisco Blade.
• Involved in planning, documenting, and supporting high availability, data replication, business persistence failover, fail-back using VERITAS Cluster Resources on Red Hat Cluster in Linux.
• Work with team members for access issues and test for solutions.
• Day to Day execution on Authentication tool such as KEON/BOKS and Implementation and re-trusting SEOS through GSO Security.
• Implemented startup and shutdown scripts, crontab and backup scripting and automation using shell scripting.
• Worked and Supported Multiple Web services such as Tomcat, Apache, WebSphere 7 and 8, WebLogic, web-method and MQM.
• Performed Ad-Hoc task on Glibc remediation and ESM break fix.
• Worked on HP Service Center to create, manage and resolve the tickets.
• Worked with DBA’s and Middleware Team to resolve the issues as they arise.
• Supported Oracle RAC 10 and 11g, Sybase, Vertica, and Db2 Database servers on a Regular Basis.
• Performed ASM and OCFS upgrade on Oracle Database servers on Red hat boxes.
• Performed Firmware upgrade on Cisco and HP ProLiant Blades.
• Analyzed problems and implemented solutions, ensured solutions were captured in Knowledge-base SharePoint.
• Worked Extensively on VMware ESxi Host and VM migration project; end to end VM migration planning and execution.
• Responsible for capacity planning and allocation, IP and DNS reconfigurations; coordinating with other team, resources and LOBs.
• Responsible for LDAP and KEON security manipulation on the firms 120000 window and Linux server farms, prepping the OS for the move along with VMware administrations to accomplish migration and overcome software/application obstacles encountered.
• Troubleshoot issues, determine root cause and remediate application, system, infrastructure issues and take proactive measures to prevent future occurrences.
• Established a professional Relationship between different Line of Business (LOB) to resolve the issue in a timely Manner.
• Provided 24/7 on call support on a rotational basis during the weekend and at night.

Environment: Red Hat Enterprise Linux, Oracle Rac 10g and 11g, WebSphere, WebLogic, Apache, Tomcat, VERITAS Cluster Services, VERITAS File Systems, Mule, Sybase, Db2, Vertica, NFS, BASH, SHELL, WebUI, NetBackup, Netcool, VMWARE ESXi, HP ProLiant DL 360, 380, and 580, G4, G5, and G6, G7 servers and also Blade Centers like C3000 and C7000, Dell Drac and Cisco Blades.

Confidential, Charlotte, NC

Linux Administrator

Responsibilities:

• Installed Linux operating systems, apply patches, manage file systems and monitor performance on Physical and Virtual environment.
• Installed and Configured DHCP, FTP, TFTP, NIS, and NFS in Red Hat Linux and Oracle Linux environment.
• Provided support for successful deployment of Web logic, Apache and Tomcat
• Write script for automation and expedite the daily tasks.
• Created profiles, users, roles and maintained security.
• Develop data back-up systems, processes, and procedures.
• Provided Production support. Coordinated internal LOBs and external vendors to resolve the issue in timely manner.
• Manage systems using remote consoles like HP ILP, Dell Drack, and Cisco Blade.
• Disaster Recovery Planning and Implementation.
• Responsible for operational support and incident management of Linux server.
• Responsible for Investigating and troubleshoot issues by determining root cause and remediate application, system, infrastructure issues and take proactive measures to prevent future occurrences.
• Implemented DR fail over testing from PROD to DR environments and vise-versa by documenting the procedure to perform activity both switching DNS for Application and Database Replication.
• Worked with team to identify and address systems problems and solutions.
• Setup Repositories for the Linux Prod and Non Prod Servers.
• Performed Kick Start Installation on Multiple Red Hat Servers.
• Performed Kernel Upgrades and Kernel Patching.
• Analyzed existing infrastructure and recommends modifications that will enhance system reliability, availability, serviceability and scalability on Linux.
• Worked on Group/User administration, Startup & Shutdown Scripts, Crontabs, File System Maintenance, Backup Scripts and Automation.
• Installed, monitored and support on monitoring tools such as Webmin and Nagios.
• Worked, Maintained and supported Oracle RAC 10g and 11g database servers.

Environment: Red hat Linux 5.x, 6.x, Oracle Linux 5.x, Exalogic, Weblogic, Kickstart, Apache, TomCat, DNS, DHCP, NFS, NIS,SAN, EMC, Ldap, Active Directory, Hadoop, VMware, Vblock, HP ProLiant servers DL 360, 380, and 580, G4, G5, and G6, G7 servers and also Blade Centers like C3000 and C7000, Dell Drac and Cisco Blades.