Manager Management
Resume:
Santosh Phone Number: 214-***-****
Devops/Linux Engineer Email:*******.********@*****.***
Summary:
Around 8 years of experience in UNIX/ Linux, systems administration, systems maintenance, systems security, software upgrade, and Server patching using RHEL satellite server.
Experience in administration of UNIX operating systems such as Redhat Linux 5.x and 6.x, SuSe EL 2.2.x, 2.4.x, 2.6.x.
Worked on blade systems which include HP 7000c with BL460c and Dell M1000e servers for the installation of Redhat Linux 4.x, 5.x and on VMware ESX 3.5 & 4.0.
Worked on configuration management in Puppet environment with 500+ servers and involved in developing manifests.
Experience in installing Redhat Linux from scratch on Gen8 HP ProLiant servers.
Configuration and implementation of High Availability applications using Veritas Cluster Server 4.1, and 5.
Disk space and File system management using Veritas Volume Manager 4.x, 5, and Logical Volume Manager.
Experience with installation and support of applications which include Apache 2.2.x, WebLogic 9, 10, JBoss 4.2, TIBCO, Oracle, etc.
Experience with SAN solutions which included McData, Brocade FC switches and Hitachi, EMC arrays.
Experience with backup technologies like Tivoli Storage Manager 5.x and Veritas Netbackup 3.x, 4.x, 6.5.
Proficient in configuring the Data Communication Devices such as Routers, Switches, Hubs, Terminal servers and Troubleshooting LAN and First Level WAN Related Problems.
Experience with high-end enterprise servers HP ProLiant DL 380, 385, 580 Servers.
Implementation of backup solutions using Veritas Net backup 4.5, 6.5.
Experience in Shell scripting using sh, ksh, bash and PERL.
Experience in Performance tuning of CPU, Memory, and Disks, using server monitoring tools such as TOP, VMSTAT, SAR, and IOSTAT.
Extensive experience with Troubleshooting of issues related to applications, network, user hardware, and naming services etc.
Experience in configuration of naming services such as NIS, DNS etc. on servers running RHEL Linux.
Experience in architecting, setting up data centers and migration of servers to a new datacenters.
Strong analytical, diagnostics, troubleshooting skills to consistently deliver productive technological solutions.
A good team player with strong communication skills and an inquisitive mind to learn more.
Technical Skills:
Operating System: Redhat Linux 4.x,5.x,6.x, Suse 2.2.x, 2.4.x and CentOS
Hardware: HP ProLiant servers, Cisco UCS C200, C250.
Scripting Languages: bash,perl,ksh
Web Servers: Apache HTTP Server 1.3.x, 2.2.x, iPlanet 6.x
Application Servers: WebLogic 8.x, 9
Disk Management: LVM, VCS 3.x/4.5,
Databases: MySQL, Oracle 9i
Designing tools: Microsoft PowerPoint
Configuration Management tools: puppet
File Systems: VxFS, ext, ext2, ext 3,ext4
Networking: TCP/IP, NFS, DNS, NIS, Switches, Hubs, and Routers
Backup: TSM 6.x
Professional Experience:
American Electric power (AEP) January 2015 Till Date
Columbus, Ohio
Devops/Linux Engineer
Participated in migration of HP ProLiant servers running Linux 5.x, 6.x to a new data center.
Building Linux servers from scratch for Production, Development and Test Environments and supported those ones under production.
Applied patches on servers running RHEL Linux to the latest available version using RHEL satellite server.
Experience in performing SAN provisioning to Linux and ESX servers from EMC SAN arrays.
Perform physical to virtual (P2V), Virtual to Virtual (V2V) migration of servers to support the Data center migration project.
Experience installing Puppet agents and pushing Manifests/Modules to 500+ Puppet clients.
Ensured that assigned systems were engineered, configured and optimized for maximum functionality and availability. Implemented solutions that reduced single points of failure and improved system uptime to 99.9% availability.
Experience in creating files systems using Logical Volume Manager (LVM).
Involved in building of VM servers using VM templates on VMware Esx client.
Deployed Puppet, PuppetDashboard and PuppetDB for configuration management to existing infrastructure.
Strengthened system and network security and business-continuity planning as a member of company’s security incident response team.
Performance monitoring on DISK, memory, and CPU using commands such as iostat, netstat, vmstat, sar, and top.
Performed Package administration on Linux using rpm, and yum.
User and Group management on all the servers running Linux Operating system.
Experience in installing configuration and support of backup technologies such as Tivoli storage manager and storix.
Worked with security team to remediate the vulnerabilities on Linux servers.
Experience in turning of DM multipath and configuration of power path on HP ProLiant servers.
Planned for, tested, and then managed the upgrade of our puppet infrastructure from 0.25.4 to 2.6.6.
Experience in installation and troubleshooting of high availability applications such as Veritas cluster Manager (VCS).
Experience in writing shell scripts and perl scripts to automate the backup jobs and scheduled those using cron.
TIAA-CREF, Charlotte January 2014-January2015
Devops/Linux Engineer
Worked as L2 patching and operations SA in an organization consisting of 8000 Physical servers.
Configured kick-start server and updating/applying patches to the servers using Redhat Satellite server.
Configured Kick start servers to install Red Hat Linux and VMWare ESX on multiple machines.
Worked in an Operation support team, who works on tickets raised by users and other support teams in the organization.
Installed Puppet client software on RHEL 6.x servers and established a communication between master and client through SSL certification.
Performing configuration management tasks on 500+ clients with the aid of Puppet Master Server and involved in writing Puppet manifests for customized configuration management.
Participated in the patching of Linux servers using Redhat Satellite server also supported Orcale DB and Oracle RAC on Redhat environments.
Manage file systems using Software RAID and recover an array, Manage file systems using Logical Volume Management, Resize file systems and protect them with LVM Snapshots.
Performed disk administration using LVM, Linux Volume Manager (LVM), Solaris Volume Manager (SVM) and Veritas Volume Manager 4.x/5.x.
Experience in troubleshooting issues related to high availability applications like VCS.
Configured NFS and Open LDAP services in Red Hat Linux.
Worked on installation of Ubuntu Linux, configuration and administration of Ubuntu.
Worked on OS level patching on the servers running Ubuntu Operating system.
Performed package, file system, and user administration on Ubuntu systems.
Involved in support and upgrade of Puppet master server from 2.x to 3.x version on servers and clients.
Experience in working on tickets related to TSM configuration and related backup issues.
Involved in Change Control Management and documentation of the procedures.
Participated in upgrading the firmware on Linux and Solaris servers and also patched the servers to the latest available patchset.
Participated in the building of new Linux servers and fixing issues after the build process as per the organization plan.
Involved in Performing Package administration on Linux using rpm, yum and on Solaris using pkgadd.
Involved in configuration and troubleshooting of issues related to NFS.
Deutsche Bank, New Jersey Sep 2012-January2014
Sr. UNIX administrator
Responsibilities:
Worked as L2/L3 operations SA in an organization consisting of 20000 physical servers globally, running Linux/ Solaris operating System.
Installation of RHEL Linux operating systems on HP & Cisco UCS HW.
Rebuild of the both Linux OS when the server is crashed, using the established profile settings.
Build servers, configured, installed tools, installed patches and transitioned servers to production support.
Involved in Change Control Management and documentation of the procedures.
Annual Participation in Disaster Recovery (DR) and power down Activities.
Experience in working and troubleshooting on samba related issues.
Installed VERITAS Volume Manager and Powerpath and TSM on Red hat Linux servers.
Performance monitoring on Linux &Solaris servers using iostat, netstat, vmstat, sar, top & prstat
Performed disk administration using LVM, Linux Volume Manager (LVM), and Veritas Volume Manager 4.x/5.x.
Installed VMWare ESX4.1 to perform virtualization of RHEL x86 servers.
Involved in decommission of the servers which reached end of life and performed SAN migrations using LVM and EMC tools.
Performance monitoring on Linux servers using iostat, netstat, vmstat, sar, top & prstat.
Have experience in troubleshooting TSM related backup issues.
Installed and configured database like MySQL, Mongo server.
Installed and configured DHCP, DNS, NFS on HP proliant servers running RHEL linux.
Configured iptables, firewall filters on Linux servers.
Installed and configured PHP.
Performed Package administration on Linux using rpm, yum.
Patch and package administration for installation of patches as per the company policy and installation of packaged application.
User, Group management for all the UNIX servers.
Modifying/ Writing scripts in Bash shell for optimizing day to day administration
Editing crontab in post –installation of Unix servers
Did Inventory management, Server decommissioning, new servers installation.
Environment: Redhat EL,4.x 5.x, Centos 5, Solaris 8,910, Apache, PHP, Veritas Volume Manager 4.1, 5, DNS, NFS, PE DELL R410,R610,R910,1650,1950,860, Sun T2000, SunFire v890,E2900, Disk Arrays MD3000, TL2000,TL4000.EMC Ax-4,Clarion,VNX
GAP, SanFrancisco, CA September 2010 – Sep 2012
Linux Administrator
Responsibilities:
Installation of Redhat Linux on x86 HW like HP and Dell & Solaris 9, 10 operating systems on SPARC platforms.
Extensively used SMF for service management for managing services on Solaris 10.
Created Projects on Solaris 10 operating system for installation of applications.
Performed volume management tasks like mirroring using SVM, Veritas Volume Manager 4.x/5.x and HPUX LVM.
Supported Orcale DB and Oracle RAC on Redhat environments.
Experience setting Linux to support RAC, Oracle and Weblogic installations and performed trouble shooting on performance issues.
Administered WebLogic 9 application servers which included installing SSL certificates.
Troubleshooting on Sun Java System Web Server 6.0 and Apache 1.3.x web server on Solaris with experience in installing SSL certificates.
Experience working with SAN environments majorly servers connected to EMC Clariions, DMX and Celerra’s.
Experience working with servers connected to on SAN and NAS environments like EMC and NetApp.
Experience setting up cluster environments like Veritas Clustering for high availability of Business Critical Applications.
Installation of Oracle 9i, 10g on the Sun servers running Solaris 10 and Redhat Linux.
Creating resource pools, zones and containers on Solaris 10 and T2000 to optimize and consolidate the use of the hardware.
Experience working with EMC Powerpath and Redhat and Solaris Native multipathing.
Patch and package administration for installation of patches as per the company policy and installation of packaged application
User, Group management for all the UNIX servers
Modifying/ Writing scripts in Bash and Korn shell for optimizing day to day administration
Editing crontab in post –installation of Unix servers
Environment: Redhat EL 3.x, 4.x 5.x, Solaris 8,9,10,SLES 10,11,Sun Java System Web server 6.0, Verities Volume Manager 4.1 5, Oracle 9i, DNS, NFS, Sun T2000, M5000, v480, v880.
Atos, Mumbai, India Feb2008- March 2010
UNIX/ Linux Administrator
Responsibilities:
Installation of Solaris 9, 10 operating systems on SPARC platforms.
Extensively used SMF for service management for managing services on Solaris10.
Created Projects on Solaris 10 to tune the operating system for installation of applications.
Performed volume management using Veritas Volume Manager 4.0
Administered WebLogic 9 application servers which included installing SSL certificates.
Troubleshooting on Sun Java System Web Server 6.0 and Apache 1.3.x web server on Solaris with experience in installing SSL certificates.
Installation of Oracle 9i, 10g on the Sun servers running Solaris 10
Performed tuning of the kernel parameters for the better performance of the operating system and tuning TCP parameters and analyzed performance of resources like CPU, Memory, Disk and swap using native commands like prstat, vmstat, sar, iostat, swap etc
Patch and package administration for installation of patches as per the company policy and installation of packaged application
Performed tasks on F5 load balancer like installing and renewing SSL certificates and bouncing servers with performance issues after taking them out of the server pools.
User, Group management for all the UNIX servers
Modifying/ Writing scripts in Bash and Korn shell for optimizing day to day administration
Editing crontab in post –installation of Unix servers
Environment: Solaris 10, Redhat EL 3.x, 4.x, Apache Web Server 1.3.x, 2.2.x, Sun Java System Web server 6.0, Veritas Volume Manager 4.1, 5, BigIP F5, Oracle 9i, DNS, NFS, Sun T2000, M5000, v480, v880.
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