PROFESSIONAL SUMMARY:

• Seasoned IT professional with eight years of experience in System Administration/Engineer with specialization in Installation, Configuration and Administration of Red Hat Enterprise Linux 4.x/5.x/6.x, Sun Solaris 9/10/11, CentOS 5/6, Windows NT 2000, 2003 and AIX 6.1
• 4 years of hands on experience as a DevOps Engineer, proficient in AWS, Chef, Puppet, Ansible, Jenkins, Salt, Vagrant, Cobbler, Cfengine, Git, Github, Subversion, Tomcat, Nginx and JBoss
• Highly skilled in automating Operating System installation and setup utilizing Jumpstart Servers for provisioning of Solaris 9/10 servers and Kickstart servers for provisioning of RHEL 4.x/5.x/6.x.
• Proficient in installation and configuration of various Packages and Patches in Linux utilizing Red Hat Satellite Server.
• Experienced in creating and managing different kinds of file systems like Ext 3, Ext 4, ZFS, VxFS and UFS.
• Firm grasp of managing various filesystem using Logical Volume Manager (LVM), Veritas Volume Manager (VxVM), Veritas File System (VFS) and Solaris Volume Manager (SVM).
• Experienced in managing and configuring Zones and Containers in Solaris 9/10 environment.
• Efficient with User Administration, Management, Disk Space and Process Monitoring in a dynamic work environment.
• Extensively used Veritas Cluster Server 4.x/5.x for High Availability Environment.
• Working knowledge in installing, configuring, implementing and managing RAID 0, RAID 1 and RAID 5 technologies.
• Hands on experience of installation, configuration and administration of virtual machines on VMware ESX/ESXi 4.x/5.x servers.
• Proficient in various storage technologies such as Storage Area Network (SAN) and Network Attached Storage (NAS)
• Efficient in working with system performance configuration and monitoring tools like Nagios, BMC, Tivoli, Cacti and Splunk
• Expertise in configuring network devices like Routers, Switches, Hubs, Terminal servers and troubleshooting LAN and WAN Related Problems.
• Working knowledge of network administration, deploying and troubleshooting of DNS, LDAP, NIS, NFS, DHCP, Samba and TCP/IP.
• Hands on experience in IP multipathing and NIC Bonding in Linux servers.
• Working knowledge of designing and implementing backup procedures using Veritas NetBackup and performing Disaster Recovery planning.
• Proficient in Automation of various day to day administration task by developing Shell Ksh, Csh, Bash, Ruby, Perl and Python Scripts.
• Hands - on experience with configuration and automation tools such as Puppet and Chef.
• Experienced in installation and configuration of Apache Webserver, WebLogic, Tomcat, Nginx and JBOSS.
• Firm grasp of Jenkins/Maven deployment and build management system.
• Proficient in Amazon AWS components such as EC2 instances setup, Elastic LB and Elastic Storage.
• Expertise in utilizing GIT and Subversion as Version Control System.
• Working knowledge of CFengine.
• Good understanding of Ansible , for configuring and managing computers, combining multi-node software deployment, ad hoc task execution , and configuration management .
• Good understanding of Salt Stack, OpenStack and Docker platform
• Familiarity with NoSQL technologies, MongoDB, Redis
• Excellent analytical, problem solving communication and interpersonal skills.
• Quick learning capability, delivering solutions as an individual and a good team player.
• Having a zeal for automation, out of the box thinking competence.
• Good understanding and exposure to Software Development Life Cycle.

TECHNICAL SKILLS:

Operating Systems: Red Hat 4.x/5.x/6.x, Solaris 9/10/11, CentOS 5/6, AIX 6.1, Ubuntu, Windows NT 2000, 2003, VMware ESXi 4.0/5.0/5.1/5.5.

Hardware: SunFireV100/V120/V240/V440/V480/V490/V1280/V880/ V890, Sun Enterprise 250/220R/420R/2900, HP ProLiant DL 585/360/385/585 G2, rx8640, rp7420, rp8420, N-Class, L-Class, D-Class, K-Class, T-Series, M-Series, IBM e-Server Regatta P690, P570, RS6000, Work Group Servers E450, E420, E250, E220, Netra 1405, Netra X1

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

Programming Language and Database: C/C++, JavaScript, SQL, Bash, Shell Scripting, Ruby, Perl, Python, MySQL, MongoDB

Build and Automation Tools: Puppet, Chef, Jenkins, Ansible, Salt, Cfengine, Maven, ANT

Disk Management: Logical Volume Manager, Sun Volume Manager, Veritas Volume Manager 4x, 5.x, 6.0.

File Systems: Ext, Ext2, Ext3, Ext4, ZFS, UFS, VxFS.

Virtualization: VMware VSphere, vCenter Server, Xen Server.

Web Application Server: WebSphere, WebLogic, Apache Tomcat, Nginx, Amazon Web Service (AWS), JBOSS

WORK EXPERIENCE:

Confidential, Boston, MA

DevOps Engineer/ System Administrator

Responsibilities:

• Administration of RHEL 5,6,7 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting on both Pseries and vmware virtualization systems
• Creating, cloning Linux Virtual Machines, templates using VMware vsphere client 5 and migrating servers between ESXi hosts.
• Installing RedHat Linux using kickstart and applying security polices for hardening the server based on the company policies.
• Performed package administration on Linux using rpm and yum thru RHN Satellite and subscription manager.
• Worked on Azure on Microsoft.
• Build and configure a virtual data center in the Amazon Web Services cloud to support Enterprise Data Warehouse hosting including Virtual Private Cloud (VPC), Public and Private Subnets, Security Groups, Route Tables, Elastic Load Balancer, CloudWatch, CloudTrail, and Security Management VPC.
• Build application and database servers using AWS EC2 and create AMIs as well as use RDS for Oracle DB.
• Worked on Docker and created virtual instances with Docker.
• Worked on Creating API’s on nodejS and AngularJS
• Worked on AWS opswork, AWS Lambda, AWS code deploy, AWS cloudformation and cloud foundry.
• Install new / rebuild existing servers and configure hardware, peripherals, services, settings, directories, storage, etc. in accordance with standards and project/operational requirements.
• Install, configure and administer log analyzer tool CloudWatch.
• Worked with ANT, maven and JIRA.
• Configure and administer Apache and Application layers
• Configure HTTP caching properties for static caching.
• Automate site configuration using Puppet.
• Experience with shell scripting ( sh, bash, csh, ksh)
• Worked on SIEM for security and audit compliance configuration
• Worked on Docker and have done deployments on Ubuntu.
• Worked with puppet /Chef for configuration management.
• Worked on version control using Github.
• Worked on automating builds using Jenkins.
• Experience with AWS SDK and AWS API.
• Worked on automating tasks using puppet
• Worked on tomcat, jboss install and configuration.
• Worked on mongodb and mysql.
• Worked on migrating Solaris 10/ AIX 6.1 to redhat 6.
• Worked on creating new LPARS on AIX IBM frame
• Worked on ruby and python scripting.
• Automate infrastructure in AWS using amazon web services.
• Installing and configuring Tomcat and JBOSS.
• Deploy puppet to completely provision and manage AWS EC2 instances, volumes, DNS, and S3.
• Performed installation, configuration and tuning of Redhat, CentOS, Solaris servers and AIX.
• Installed and configured Windows 2003/2008 servers and splunk.
• Implemented administration, maintenance, upgrading and monitoring of IT System and networks.
• Installed PXE servers, KickStart configurations for automatic Linux Installation.
• Performed Installation, configuration and administration of Weblogic application servers and Oracle System Bus (OSB).
• Involved in RPM package building according to the requirement using fpm and deploying the package using puppet enterprises to puppet agent.
• Worked on creating queues for new data center and reporting on console for finalization.
• Worked on Amazon web services to create AWS instances with S3 storage and EBS storage.
• Performed Installation, configuration and Administration of VERITAS Volume Manager (VCS).
• Configured and deployed of DynaTrace Monitoring system for managing all the Linux warehouse systems.
• Worked on Siteminder WAM UI on configuration of policy and LDAP.
• Implemented migration from Redhat to CentOS environment. Also Worked on provisioning and optimizing infrastructure resources for Oracle EBS applications on Red Hat Linux
• Implemented virtualization using VMware in Redhat and CentOS on HP-DL585 and IBM-z/VM series.
• Provided support for break/fix incidents.
• Involved in corporate level auditing compliances like system security, network security and installation of recommended patches.
• Performed Data Center migration from AIX to Linux and 5.x to 6.4 Linux upgrade.
• Involved in troubleshooting any reported problems, analyzing heap/thread dumps and network packets taking tcpdump, snoop using wireshark.
• Performed Migration of HACMP 4.3.1/4.5 to HACMP 5.1 using Node-by-Node migration without changing the cluster setup
• Involved in Veritas NetBackup LOB Media server conversion to SAN Clients, installation, configuration and administration of NetBackup and TSM (Tivoli Storage Manager) for backups/recovery.
• Implemented day-to-day tasks in Red Hat Linux and CentOS that include upgrading kernel, HBA driver, configuring SAN Disks, Multipathing, NAS Mount and Unmounts.
• Worked on Tivoli Workload Scheduler for batch jobs scheduling, fixed or cleared jobs that encountered error.
• Managed batch jobs processes using Korn, shell and PERL scripts (Cron and Tivoli workload scheduler).
• Deployed applications on Jboss (4.2.1, 4.3, 5.1) servers. Worked on creating and scheduling jobs using autosys.
• Configured and maintained webservers, file servers and directory servers.
• Worked on administering VMware Infrastructure Client 3.5 and vSphere 4.0.  
• Designed and implemented fully automated server build management, monitoring and deployment by utilizing Puppet.  
• Installed and configured Puppet Master and Puppet Client, created manifests to install packages, cron jobs and start services.
• Worked with Docker containers
• Worked on maintaining Docker repositories and images
• Worked on Nginx and Apache web servers
• Worked on Ansible tower and deploying software using Ansible tower.
• Automated Linux production server setup using Puppet scripts. Used these scripts to replicate production build environments on a local dev boxes using Vagrant and Virtual Box.
• Created, configured and managed AWS EC2 instances utilizing Elastic Load Balancing and Elastic Beanstalk for our QA and UAT environments as well as infrastructure servers for GIT and Puppet.
• Involved in maintaining, executing, and scheduling build scripts to automate DEV /QA/UAT builds. 
• Utilized GIT and SVN for source code management.
• Built scripts using Maven build tools in Jenkins to deploy J2EE applications to Application servers from one environment to other environments. 
• Developed Shell/Python/Perl/Ruby scripts for automation of the build and release process. 
• Jenkins was used as a continuous integration tool for automation of daily process. 

Environment: RedHat Enterprise Linux 5.x/6.x, Solaris 10/11, Volume Manager, Veritas Cluster Server, VMware ESX 4.x/5.x, Puppet, Jenkins, Nagios, Tomcat, Nginx, Apache, Amazon EC2, Elastic Load Balancer, Elastic Beanstalk, Docker, GIT, SVN.

Confidential, Austin TX

DevOps Engineer/ System Administrator

Responsibilities:

• Worked closely with the development and operations organizations to implement the necessary tools and process to support the automation of builds, deployments, testing and infrastructure (infrastructure as code) using Chef.
• Developed Chef recipes to configure, deploy and maintain software components of the existing infrastructure
• Setting up & trouble shooting the nightly/on-demand builds for all Patches/Hot-fixes and for all releases
• Setting up Jenkins Continuous Integration builds for all releases on windows and Linux.
• Involved in meetings with Dev managers to Create, manage and maintain the SCM Plan, standards, and procedures
• Integrated Maven with Subversion to manage and deploy project related tags.
• Worked with TCP/IP network configuration. 
• Administered and Configured Logical Volume Manager which involved create and modify file system, logical volume, Physical volume, Volume groups, mirroring and un-mirroring of volume groups, hot spare physical volume. 
• Performed hardware and software installations, upgrades, and maintenance, patch administration , kernel modification/upgrades, file system management, performance and security analysis and network configuration/tuning . 
• Involved in backend solution, day to day Administration & Monitoring, File System Management and Disk Management.
• Worked on implementation and troubleshooting of network services like NFS, FTP, NTP, Telnet, SSH. 
• Worked in setting up Chef Infrastructure , Chef-repo and Boot strapping chef nodes.
• Used Jenkins, Chef, shell scripts to automate the code deployment & automation of continuous integration infrastructure (GIT and Nexus were also used in this process)
• Documented release, builds and source control processes and plans.
• Worked on building and deploying Java code through Jenkins and Chef.
• Worked closely with development team and SQA team for product releases. 
• Supported small to medium sized projects using GIT . 
• Worked on integrating GIT into the continuous Integration (CI) environment along with Jenkins and Subversion.
• Worked on cloud solution architecture on open stack Amazon Web Services (AWS).
• Created and deployed a tool to automate branch and project creation in subversion using Perl and Chef Scripts.  

Environment: RedHat Enterprise Linux , CentOS, AWS, Chef, Jenkins, Vagrant, Docker, GIT, Nexus, VMware, Shell-Scripting, Perl, Python, LDAP, LVM, Apache Webserver.

Confidential, Fargo, ND

System Administrator/ Puppet Developer

Responsibilities:

• Administration of RHEL 5/6 and CentOS 5/6 that includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues. 
• Worked in AWS Cloud Environment like EC2 & EBS . 
• Worked with API's like AWS API for Creating and Managing Amazon Cloud Instances using Puppet Code and used Puppet for provisioning. 
• Configured services to replicate data to the disaster recovery data center in Puppet . This includes OpenLDAP master/slave configuration, primary/secondary DNS and SVN replication. 
• Built Puppet modules for every conceivable software component installed on servers, including, but not limited to Apache , Cacti , Cobbler , Dell hardware utilities, DHCP , iptables, Jboss , Tomcat , LDAP , MYSQL, Nagios , NTP , SNMP, and Yum
• Implemented PXE boot and Kickstart install of server systems with Cobbler and puppet. 
• Performed software upgrades to customer instances running JBoss and Tomcat using aforementioned deployment process. 
• Created disk groups, volume groups and RAIDs using Veritas Volume Manager.  
• Installed and configured PHP and MySQL on Linux Server for test and development environment.
• Worked on RPM and YUM package installations, patch and other server management. 
• Created new file systems , monitoring disk usage, checking and backup of log files administration and monitoring the disk based file system. 
• Configured multipath, adding SAN and creating physical volumes, volume groups and logical volumes. 
• Installed and configured Apache and supporting them on Linux production servers. 
• Worked on troubleshooting Linux network, security related issues, capturing packets using tools such as iptables, firewall, TCP wrappers and NMAP . 
• Developed automated processes that run daily to check disk usage and perform cleanup of file systems using shell scripting and Crontabs . 
• Monitored the File System, CPU load for better Performance and system performance parameters using iostat, vmstat and prstat.  
• Performed the configuration and administration of DNS, NFS, SAN, NIS and database files. 
• Worked extensively in managing Source control systems GIT and SVN . 
• Worked on a very robust and dynamic environment with the Development and QA team finding quick and feasible solution. 

Environment: RedHat 5.x/6.x, CentOS 5/6, Ubuntu, WebLogic server, Kickstart, vmstat, iostat, MySQL, VMware, AWS, EC2, EBS, Puppet, Apache, Nagios, Tomcat, Jboss, Cacti, Cobbler, GIT, SVN

Confidential, Detroit, MI

Solaris/ Linux Administrator

Responsibilities:

• Administration and Maintenance of around 120 Solaris and Linux development and production servers.
• As a system administrator, was responsible for provisioning, building and administering UNIX servers consisting of different flavors like Sun Solaris 9, 10, Red Hat 6.x, 7.x, 8, 9, AIX 6.1 and Microsoft Windows 2000 Advanced Server, Windows NT4.0. Used automated installation technologies like Jumpstart and Kickstart for provisioning of the servers.
• Configured and managing User accounts, File systems, Disk quotas, Network and system monitoring, end user connectivity and deploying hardware, DR and HA planning and implementation.
• Created file systems like Ext3, ZFS, VxFS using Veritas Foundation Suite, SVM and LVM.
• Written and implemented Perl script to modify LDAP database
• Created VMs for Solaris x86 and Linux on VMware and maintained them using VMware vSphere Client.
• Installed various applications such as Oracle 9i, 10g, Clearcase 6.x, Informatica 8, and DB2 on multiple platforms like Sun Solaris, Red Hat Linux and Microsoft Windows.
• Performed administration of WebLogic 8.x instances which included installation, deployment, clustering and troubleshooting
• Monitored and administered fine tuning system and network performance for Red Hat Linux and Sun Solaris systems
• Administered Disks and File systems using Veritas Volume Manager 4.x on Sun Solaris. In the process created Disk Groups, Volumes, Plexes, Imported and Deported disk groups, created alternate boot disks etc.
• Managed performance tuning of applications like Oracle 9i, WebLogic 8.x and Operating System
• Implemented naming services like DNS, NIS, and Active Directory in multi OS environments.
• Monitored all the systems for latest Virus definitions and System and Security patch updates.
• Worked on configuration of Cisco 3640 Routers, 2900, 3350 Switches and PIX 520, 501 Firewalls
• Implemented and monitored the environment and took corrective action with tools like Big Brother and BMC Patrol.
• Involved in setting up Storage Area Network (SAN) and Network Attached Storage (NAS) and file system backup and restore.

Environment: Solaris 9, 10, Red Hat Linux 6.x, 7.x, 8, 9, AIX 6.1, Veritas Volume Manager 3.x, 4.x, Veritas NetBackup 4.5, Oracle 9i, WebLogic 8.x, Sun Fire v480, v880, 4800, 6800

Confidential, Lansing, MI

Linux Administrator

Responsibilities:

• Maintained and administered around 90 Solaris, Linux and AIX Servers
• Carried out administration of hardware clusters and application clusters
• Designed, planned and carried on installation, upgrade, configuration and maintenance of Veritas NetBackup 5.1 and 4.5 for Solaris and Linux
• Worked on Disk / Volume management with Solstice Online Disk Suite and Veritas Volume Manager on Sun Sparc Storage Arrays and Multi-Packs
• Installed and configured of RAID (0,1,0+1,5) File Systems using Solstice Disk Suite
• Setup and implemented system installation and configuration using Jumpstart for Solaris 8 and Kickstart for Red Hat.
• Worked on migrating Solaris 8 to Solaris 10 using JumpStart
• Performed packages and patches management and debugging as needed.
• Created and edited Users, Groups and file permissions as per requirements.
• Used vmstat and iostat to monitor system and performance.
• Worked over managing clusters and fail over technologies
• Implemented NAS for attaching end users home directories over the network
• Resolved problem tickets generated via Remedy ticket tool
• Implemented service requests as generated via Remedy ticket tool or GRS tool, e.g. O/S upgrade, IP changes, Printer configuration, group and net-group access, etc.
• Opened cases with Vendors for analysing of crash data and to make arrangements for Hardware replacements
• Installed HBA cards and worked with storage team for backup and recovery
• Provided expert technical directions to the Application team and external vendors on integration requirements and technical issues related to system rollouts

Environment: Solaris 8,9,10, Red Hat Linux 5.x, AIX 6.1, SUN ENTERPRISE V880, 4500, V240, V480, IBM RS/6000,B150, B450,P550,Blades, SP nodes, HP ProLiant & Blade servers. Veritas Volume Manager and Veritas Cluster Services

Confidential, Galesburg, IL

Linux Administrator

Responsibilities:

• Worked on Installing , tuning , troubleshooting and patching of Red Hat Enterprise Linux   servers. 
• Carried on installation and configuration of WebLogic and WebSphere application server. 
• Performed installation, configuration, and maintenance of web servers, application servers , and database servers on Linux server. 
• Scheduled various regular, periodic, future and queue tasks by using crontab . 
• Utilized NFS management - taking care of user accounts/groups, setting up of NFS environment. 
• Transferred files from one system to other using FTP and SFTP . 
• Monitored server performance and troubleshooting server related problems to SNMP . 
• Performed processes administration and management like monitoring, start/stop/kill various processes/sub processes. 
• Monitored system performance parameters using iostat, vmstat , and fine-tuning . . 
• Created and maintained user accounts, profiles , and security rights . 
• Carried on installation/upgrade, system startup, and system shutdown as needed. 
• Wrote simple bash scripts to ping the servers and add users to the boxes. 
• Resolved system errors and crashes , disk space problems, huge file sizes , and file system full errors. 

Environment: Red Hat Enterprise Linux , Shell Scripting, Apache, WebLogic, WebSphere, Bash, NFS, iostat, vmstat