SUMMARY

• Over 8+ years of IT industry experience as a System Administratorand Production Support of various applications onSunSolaris, Red Hat Enterprise Linux,andWindows environment.
• Experience configuring and managing Puppet master server and also experience in updating and creating modules and pushing them to puppet clients.
• Proficiency in writing automation scripts using Chef, Puppet, Shell, PowerShellcto support infrastructure as code and continuous deployment.
• Experience in Installing, configuring and maintaining Samba,Web Sphere & Web Logic Application Servers, Nagois and Chef.
• Strong proficiency in supporting Production Cloud environments (AWS, Azure, VMWare) as well as traditional managed hosted environments.
• Experience in manage cloud software deployments, with a focus on continuous integration and deployment using GitHub, Jenkins, Bamboo, SVN and Maven
• Supported AWS Cloud environment with 200+ AWS instances and configured Elastic IP & Elastic Storage and also experience working on implemented security groups.
• Knowledge of Big data and Hadoop ecosystem and its components like HDFS, Hive, Pig, Scoop and Hbase.
• Efficiency in installing, configuring and implementing the LVM, andRAIDTechnologies using various tools likeVeritas volume manager,Solarisvolume manager.
• Experience in Installed and configured Apache/Tomcat/Java/MySQL.
• Experienced in Amazon EC2 setting up instances, virtual private cloud (VPCs), and security groups.
• Configuring and AdministeringDNS, NIS, NIS+, LAMP and LDAPonSunSolarisserver environment.
• Experience in Install and configuration of Web hosting administrationHTTP, FTP, SSH, & RSH
• Experience in Installing, upgrading and configuringSUNSolaris9 and 10 onSunServers Using Jumpstart Servers, Manual installation as when required.
• Experience in Installation of VMware ESX server and creation ofVMs and install different guest OS.
• Experience in Installation and configuration of Zonesand ContainersinSolaris10 environment.
• Experience in Creating and maintaininguser accounts, profiles,security, rights, disk spaceandprocess monitoring.
• Experience inVeritas Volume manager (VxVM), Mirroring, and striping,Parity,New File Systems,MountingandUnmountingFile Systems.
• Resolving system errors and crashes, huge file sizes, file system full errors.
• Experience in Package management using RPM, YUM and UP2DATE in Red Hat Linux.
• Worked on Firewall implementation &Load balancer between various Windows servers.
• Ability to write Shell&Perl scripting and worked on Splunk for generating various metrics
• Excellent analytical, problem solving, communication and interpersonal skills.

TECHNICAL SKILLS

Operating Systems: Linux (RedHat, CENTOS ), Solaris 10/9/8, HP - UX 11.0, 11.11, IBM AIX (4.3/5.x), HPUX11i V1, V2 & V3,VMware ESX,SLES 8,9,10 & 11, Windows NT /2000/2003, MAC OSX 8/9.x/10.x.

Hardware: M5000, M8000, T5220, T5240 Sun E15K, E25K, Sun Fire 6800/4900/3800 , Sun Fire 490/280, v880/v890, Sun Enterprise Servers E6500, E4500, E3500, Work Group Servers E450, E420, E250, E220, Netra 1405, Netra X1, Ultra 80, 60, 30, 10, 5, 2, 1, Intel Servers

Networking: TCP/IP, NIS, NFS, FTP, DNS, DHCP, Samba, Apache, SMTP, SSH, IP-Tables

WEB Technologies: Tomcat, APACHE 2.x, 3.x, Web Logic (8/9/10) & Web Sphere 4.0/5.0

Programming, Scripting Language & Databases: RDBMS,MySQL, Oracle, Sybase, MSSQL, C, UNIX Shell Scripting, Perl Scripting, Python, Ruby, HTML, VB

Backup Management: Veritas Net backup 4.x/5.x/6.x, Ufsdump, Ufsrestore, TAR, cpio, dd, Tivoli, Symantec Netbackup 7.x

Third Party Software: VERITAS Volume Manager, VERITAS Cluster Service (VCS), HP Service Guard, Sun Cluster, EMC Storage, RAID Technologies, SSL, Splunk,Chef,Puppet, GitHub, Jenkins, Bamboo

Protocols: TCP/IP, UDP RIP, OSPF, EIGRP, IGRP, SNMP, SMTP, TELNET

PROFESSIONAL EXPERIENCE

Confidential, Des Moines, IA

Sr. Linux Administrator / DevOps Engineer

Responsibilities:

• Installed, configured and Administrated of all UNIX/LINUX servers, includes the design and selection of relevant hardware to Support the installation/upgrades of Red Hat (5/6), CentOS 5/6, Ubuntu operating systems.
• Responsible for managing the Chef client nodes and upload the cookbooks to chef-server from Workstation
• Used Agile/scrum Environment and used Jenkins, GitHub for Continuous Integration and Deployment
• Used pearl, Python and Ruby as scripting language to automate the tasks
• Used chef to configure/install web servers, database servers etc
• Configured Red Hat Cluster Nodes for any legacy applications and verified the daily health check on the Cluster Nodes.
• Creating and modifying the manifest as per the requirement on puppet.
• Media based installs on several hundred Cisco UCS B 0 and BM Blade Centers asrequired for UAT/Production Oracle Web logic. Red hat JBoss, Oracle Enterprise Database and MySQL Database Server requirements.
• Installing and updating packages using YUM (custom YUM servers/repositories) and Red Hat Satellite Server.
• Configured and Administered Apache, VSFTPD services, MYSQL and Tomcat.
• Participating in 24x7 production on-call support of Linux and provided technical support to users.
• Implemented rapid provisioning and life cycle management for Redhat LINUX using kickstart.
• Expertise in security hardening (iptables/selinux) major Production Servers, and compiling, building and installing web server based Linux tools.
• Experience in performing, uploading and upgrading new firmware on the Interconnects and Chassis
• Implement and maintain internal systems key to DevOps operations such as database servers, continuous integration, and QA/Test servers
• Proficient in providing support on the deployed Red Hat Enterprise Linux & Sun Solaris servers from both operating system level and application Level.
• Expertise in configuring Red Hat Cluster Nodes for any legacy applications and verified the daily health check on the Cluster Nodes utilizing clusters.
• Expertise in creating VM Templates, cloning and managing Snapshots.
• Troubleshooting performance or configuration issues with MySQL and Oracle.
• Expertise in hardening, Linux Server and Compiling, Building and installing Apache Server from sources with minimum modules.
• Monitoring and troubleshoot backups and schedule Cron jobs.
• Experience in scripting using BASH & PERL, Mail Server, Samba Server, Apache Server.
• Worked on configuringNIS, NFS, DNS, DHCP, FTP, FSTP, Telnet and RAIDlevels.
• Experience in database replication using OCFS2 file system with oracle 10g and 11g database
• Experience in deploying several sets of Linux guest builds from VMware templates using PowerCLI as well as Red Hat Satellite Server.
• Patch management of servers and maintaining server's environment in Development/QA/Staging/Production.
• Resolving assigned remedy tickets and remedy tools in Development/QA/Staging/Production.

Environment: RHEL 4.x/5/6, Solaris 9,10&11, HPUX, Centos, SUSE 10, 11, VERITAS Volume Manager 3.x/ 4.x, VERITAS Storage Foundation 5, Redhat Cluster, VERITAS Cluster Server 4.1, Tripwire, NFS, DNS, SAN/NAS, puppet,chef,splunk.

Confidential, Mequon, WI

Linux Admin / (Chef & puppet) Developer.

Responsibilities:

• Worked on variety of Linux platforms Red Hat Linux,Solaris which includes installation, configuring and maintenance of applications on this environment.
• Works with Symantec and BSC team to setup the Symantec O3 IDLINK Open VPN Servers.
• Build servers using Kick Start, Red Hat Satellite Server, and VSphereClient.
• Implemented automations tools chef, puppet, splunk, DevOps
• Migrated to Red hat satellite server 6 version.
• Implemented Bash, Perl, Python scripting.
• Updating patches to keep servers updated against bugs present in the operating system using Red Hat Satellite Server, yum, etc.
• Worked exclusively on VMware virtual environment.
• Experience in using VMware vMotion to move VM’s from One Datacenter to another datacenter.
• Involved in installation and configuration of various Third party software onto servers.
• Installed, configured and provided support for Tivoli Monitoring software across various OS platforms like RHEL, AIX and Solaris.
• Installed packages using YUM and Red hat Package Manager (RPM) on various servers.
• Troubleshooting network administration, IIS configuration, DNS setup and modifications, firewall rule sets, local and distributed director, connectivity, and supporting applications.
• Performed the daily system administration tasks like managing system resources and end users support operations and security.
• Responsible for independent support of Tier 2 issues: reboots, start/stop services, reset Terminal Service and pc anywhere connections, and administrative server maintenance. Daily follow up with clients to ensure resolution of all issues.
• Provide support to Account Managers, UNIX and Windows technicians, and other departments.
• Involved in ILMT Agent Deployments and Oracle/SQL Upgrade project which includes various UNIX builds of different OS platforms across various data centers.
• Used Logical Volume Manager for the management of Volumes including creation of physical and logical volumes on Linux.
• Coordinated with various cross functional teams across IT operations to make sure smooth functioning of projects.
• Worked closely with DBA Team in order to adjust kernel parameters as per requirements.
• Day to day resolution on Linux based issued though SMS ticketing system in compliance to SLA cycles.
• Performed application installation and management on IBM AIX and Linux servers for applications like Web Sphere Application Server (WAS) 7, JBoss 4.2.x, 5.x, Sun JES Web Server 6.1, Oracle 10g, Sybase 12.5 etc.
• Automating many day to day tasks through Bash scripting.

Environment: Red hat Enterprise Linux 4.x/5.x/6.1, AIX 6.x, Solaris 8/ 9/10, Tivoli Storage Manager, VMware ESX5, Tivoli Net backup, and Web sphere. Windows 2012 servers, Windows 2008, IIS 7.0 & 7.5.

Confidential, Bristol, PA

Sr. Linux System Administrator / Puppet Developer

Responsibilities:

• SupportedSolaris/Linux servers in production / stage / development environment.
• Used splunk to monitoring/metric collection for applications in a cloud based environment.
• Deployed Puppet, Puppet Dashboard, and Puppet DB for configuration management to existing infrastructure.
• Used Python and Pearl as scripting language
• Involved in managing Cloud platforms such as AWS
• Configure and administrate database cluster using VERITAS cluster.
• VERITAS Volume Manager 3.x/4.x and Solstice Disk suite (SVM) RAID configuration, troubleshooting, maintenance, disk management & space allocation etc.
• MigratedSunServer (Around 1000) and HP Servers (Around 300) Lift and Shift from Old Data Center to New Data Center on a Weekly Basis.
• Installation Configuration troubleshooting & maintenance ofVERITAS cluster.
• Solaris7, 8 & 9, 10 OS configuration, performance tuning, patching and maintenance.
• SunServers Hardware, OBP configuration & troubleshooting
• REDHAT Enterprise Linux 3, 4 Installation on various servers using Kick start and configuration & support for various applications run on Linux environment.
• Performed Mechanization Puppet and Chef.
• Exclusively done Oracle Migration from 4 Node Cluster to 4 Cluster and also 6 Node to 2 Node.
• Performed SRT testing before bring the Cluster into the Production.
• MigratedVERITAS Disk Groups using Deport and Import Techniques.
• Day to day duties for UNIX/Linux server Maintenance and Support to developer's team for their issues with application, tuning, troubleshooting, software running on UNIX/Linux Servers.
• Disaster Recovery operation setup & checkup at contracting facility
• Performed e in installing, configuring and trouble-Shooting web servers like IBM HTTP Web Server, Apache Web Server, Websphere Application Servers, and Samba Server on Linux (Redhat & CentOS).
• Automation scripts for weekly and monthly backups in perl and shell
• UNIX Server monitoring for maximum availability using BMC patrol and other monitoring tools and taking steps to keep servers up and running under 24x7 environment for maximum uptime.
• 24x7 support for the UNIX servers. Rotating on call pager responsibilities for Production environment.

Environment: Solaris8/9 with NFS and NIS, Linux RHRL3,4,SunUltra Sparc 60,SunE220,E250,E450,E3500, E4500, VMware, SolsticeDisk Suites, Volume Manager (VxVm) 4.1,Veritas Cluster server (VCS), VMware.

Confidential, Tempe, AZ

Unix/Linux Admin / ChefDeveloper

Responsibilities:

• Supported Solaris/Linux servers in production/QA/ Development Environment, includingSolarisZone and RHEL VM's.
• Created several cookbooks, recipes using Ruby as scripting language
• Involving in installing chefnode, workstation and server
• Installed andConfiguredSolariszones: whole, sparse, branded onSunHw (x4140,x4170,T5240.T3-1,T3-2)
• Installed ESXi 4.1Hypervisor on HP Servers.
• Installing, configuring and maintainingapache, samba,Web Sphere& Web Logic Application Servers and Nagois
• Worked on VMware, VMware View, vSphere 4.0. Dealt with ESX, ESXi servers.
• Enhanced and simplified vCenter server 4.0.
• Installation of systems using Jumpstart forSunServers and Kickstart for RHEL on HP Hw.
• Configure, support and perform routine maintenance of hardware and software for Linux andSolarisservers.
• Involved in Hardware and software evaluation, recommendation and vendor management.
• Resolved config issues and problems related to OS, NFS mounts, LDAP user ids DNSand issues.
• Experience in creation and maintenance of ZFS file systems / set quotas.
• Regularly applying patches for Redhat Linux,Sunand HP systems.
• Develop Unix Shell scripts for regular and periodic jobs and also for sysadmin jobs.
• Extensively worked with Business, Application, Database, Network and SAN Team for project requirement.
• Manage and co-ordinate Unix and Linux administration tasks
• Ensure Data Center operation meets required service levels
• 24x7 support for the UNIX servers. Rotating on call pager responsibilities for Production environment.

Environment: Solaris 9 & 10, RHEL 4.X,5.x,6.x:SunUltra SparcT5220,T5240, T3-1,2,M5000,X4140,x4170; HP DL360, 380 & 580; VMware, SolsticeDisk Suites, ZFS; Volume Manager (VxVm) 4.1, Veritas Cluster server (VCS), VMware.

Confidential

Linux Admin

Responsibilities:

• Managing UNIX Infrastructure and EMC storage involving maintenance of the servers and troubleshooting problems in the environment.
• Installing operating systemsSolaris, Linux and HP according to business requirements.
• Trouble shooting the issues ranging fromSolaris, Linux and SAN environments.
• Created and MaintainedSolaris10 zones/containers.
• Experience in creation and maintenance of ZFS file systems.
• Regularly applying patches both forSUNand Linux systems.
• Installed and Configured Jumpstart and Kickstart Server.
• Working with VERITAS Volume Manager for creating volumes and file systems for various applications and databases.
• Experience with Java Enterprise Application Servers such as IBM Web Sphere, Oracle Application Server (OC4J), BEA Web Logic, JBOSS, and Tomcat.
• Creating and maintenance of Virtual machines in VMware ESX.
• Worked on different VMware products like VMware workstation, GSX/VMware server, VMware player, VMware Converter and ESX server 3.X.
• InstalledWeb Logic 8.1with SP5 Server and configured domains,Adminand managed servers for Applications to be deployed.
• Configured, Installed LDAPSolarisand Linux server.
• Connecting to ESX server by using VIC, putty andWeb access.
• Installed and configured Send mail onSolarisLinux and AIX servers.
• Experience in working with Hitachi Storage navigator.
• Migrated central send mail server to Postfix and Installed and Migrated SAP from Linux toSunservers.
• Involved in SAN migration project to migrate the data across the storage arrays.
• Established end-to-end software development process using shell on top of BO, including automated builds of Rhapsody models.
• Implemented security policy and managed firewalls/IDS. Managed DNS, send mail, IP space, and co-location facility transition.
• Providing 24/7 on-call support on rotation basis.
• Assembled, Replaced and HandledSun, Linux and AIX Hardware problems inData Center.
• Developed Korn and Bash shell-scripts to automate routine activities
• Installation and Configuration of Windows Active directory server 2000 and citrix servers. Administration of applications via Citrix MetaFrame.

Enivornment:SUNE10K, M4000/M500, E4500/5000, E35000, Hitachi 9980v. Solaris8/9/10, RHEL 3, ESX 3. solstice disk suite (SDS),SUNUCE, Jboss, Veritas Volume Manager (VxVm),VMware, Veritas Cluster server (VCS).