SUMMARY

• Accomplished Linux/Devops system administrator with 8 years of experience managing server infrastructures and involving administration of mission critical, high availability environments.
• Proven ability to create and deliver solutions tied to business growth, organizational development and systems/network optimization. Skilled problem identifier and troubleshooter comfortable managing systems, projects and teams in a range of IT environments.
• Qualified Professional with 8 years of experience administrating, configuring, managing Red Hat Linux distributions and Virtualization with VMware ESX 5.5 and Virtual Centre server .
• Experience in AWS using EC2 , AWS Dynamo DB , AWS S3 , AWS VPC , and IAM services.
• Worked on Amazon Web Services for deploying EC2 instances consisting of various flavours viz., OEL, RHEL, CentOS and Ubuntu in Linux and Windows 2008 and 2012.
• Managing Amazon instances by taking AMIs and performing administration and monitoring of Amazon instances using Amazon Cloud Watch.
• Experience setting up instances behind Elastic Load Balancer in AWS for high availability.
• Worked on DevOps tool Chef in provisioning AWS machines.
• Installed and configured an automated tool Puppet that included installation and configuration of Puppet master, agent nodes and an admin control workstation.
• Experience in writing modules for Puppet and good understanding analysing manifests.
• Installing, configuring and administering Jenkins CI tool on Linux machines.
• Configure several Raid Levels (Raid1, Raid 5, Raid 6 and Raid 10)
• Coordinate/assist developers with establishing and applying appropriate branching, labelling/naming conventions using GIT and Subversion(SVN) source control.
• Experience with Linux systems, virtualization in a large - scale environment, experience with Linux Containers (LXC) and Docker .
• Experience in configuring Kickstart Servers in Red hat Linux.
• Experience using Cobbler for building multiple servers.
• Manage deployment, maintenance, support and upgrade of servers, hardware, software, operating systems in server environment.
• Created Golden boot Images for Linux servers.
• Experience on user administration using Active Directory on Windows and LDAP on Linux servers.
• Experience in configuring Jumpstart Servers for Solaris servers.
• Build and troubleshooting experience in Windows Server 2008 & 2012 with VMware ESX Server, ESXi Server and Vcentre 5.0/5.1.
• Knowledge on Storage Area Network .
• Configuring and Administering NIS+, NFS, DNS
• Experience on storage allocation using Logical Volume Manager .
• Good working knowledge of Git Hub Repositories .
• Experience on Redhat Packet Management .
• Managed VMware Infrastructure/vSphere5 clusters on Test/Development environments.
• Have ample experience in load balancing and monitoring with Nagios and Splunk .
• Experience with TCP/IP networking .
• Good scripting knowledge on Pearl, Bash, Shell & Python.
• Extensive experience in hosting applications over Jenkins .
• Excellent understanding of Network topologies such as LAN, WAN, VPN and Firewalls.
• Knowledge on hosting and deploying applications using WebSphere Application Servers.

TECHNICAL SKILLS

Operating System: Sun Solaris 8/9/10/11, RHEL 3.x/4.x/5.x/6.x, Windows Server 2000, 2003,2008 and 2012,OEL 4,5 &6, Ubuntu, VMware ESX/ESXi 3.5/4.1/5.HPUX 10.x/11.x

Web Server: Apache 1.3.x, Apache 2.0.x,JBoss4.x and Enzinex

Application Servers: Web Logic Application Server 9.x, 10.x, Apache Tomcat 5.x/7.x, Red Hat JBOSS 4.22.GA, WebSphere 6.x/7.x/8.x

Hardware: SPARC,FireV440,V480,V490,V880FireX4440,X4140,X4170,X4500,X4540,X4600, IBM Netfinity 3000, EMC Symmetrix 3000,Symantec Netbackup6.X, HP Proliant blades (DL360,580 G4,G7), EMC -DMX 2000, Clarion FC4700, EMC- VNX 5500/5700, Dell PE 2600,PE 2900, PE 2950, Cisco UCS 200, 250, 300, IBM Blade center, Netapp Storage FS6080.

Naming Services: NIS, NFS, and DNS

Clusters: VERITAS Clusters, HACMP (High Availability)

Volume Manager: VERITAS Volume Manager, Solaris Volume Manager, LVM with Linux, AIX-LVM

Storage: EMC Clarion CX series, NetApp

Backup Tools: Symantec NetBackup, EMC - Replication Manager,

Cloud Environments: Amazon EC2 & S3

Automation Tools: Chef, Puppet, Kickstart, Jumpstart.

Networking/Protocol: TCP/IP, HTTP/HTTPS, NDS, DHCP, NFS, Cisco Routers, LAN

Virtual Servers: VMware ESX Servers, vSphere 5.x, Solaris Zones

Scripting: Perl, Python, Ruby, Borune, Korn and Bash Shell scripting

PROFESSIONAL EXPERIENCE

Confidential, LEXINGTON, MA

Sr.Devops/Cloud Engineer

• Responsible for upgrades to RedHat Linux with Software packages, patches and maintained them in accordance with established policies, procedures and service level agreements.
• Working on variety of Unix platforms RHEL 5.x/6.x, Solaris 10/11 which includes installation, configuring and maintenance of applications for prod/stage/dev environments
• Build Servers using kickstart and Jumpstart
• Involved in on-going RHEL 5 to 6 upgrade project
• Deployment and management of many servers via script and Chef, utilizing cloud providers as a direct substrate for implementation
• Deploying application using Jenkins server and Troubleshoot build and release job failures, resolve, work with engineers on resolution.
• Research and development on scalable Linux deployments on AWS via Docker
• Developing and deploying best practices for production and development environments
• Implemented cloud infrastructure using Chef
• Planned, implemented, and managed Splunk for log management and analytics
• Automating the creation of WebLogic Application servers instances, providing processes to automate configuration/restoration and backup
• Education on best practices using Docker
• Worked closely with EC2 infrastructure teams to troubleshoot complex issues
• Created Chef cookbooks for sudoers and network configurations using Chef Server
• Maintaining automated environment using Chef recipes and cookbooks
• Used Chef to manage VM configuration within AWS
• Implemented and managed Splunkmonitoring and reporting infrastructure
• Responsible for Designing, Building, installation, configuration, tuning, security, backup, recovery and upgrades of RedHatLinux .
• Managed and supported AWS Security related issues, such IAM and S3 policies for user access
• System administration including user, system & group management, system updates, performance monitoring, backup/recovery, disk & storage management.
• Worked on AWS Cloud Watch, Cloud Formation and Cloud Trail services
• Wrote JUnit test cases for unit, integration, and functional tests, run automatically by Hudson/Jenkins in the builds triggered by each push to Git
• Primarily used Ruby to write GIT applications and chef Recipes
• Created monitors, alarms and notifications for EC2 hosts using Cloud watch Monitored System Performance managed Disk Space (Logical Volume Manger) and performed system Backup and Recovery.
• Creation, Management and Configuration of Virtual Machines, Clone and Templates.
• Customizing guest operating system on Virtual Machines.

Confidential, Phoenix, AZ

DevOps/Unix Administrator

• Administration of RHEl 4.x/5.x/6.x and Solaris 9/10/11 includes installation, testing, tuning upgrading, patching and Troubleshooting day-to-day issues
• Launching and configuring of Amazon EC2 Cloud Servers using AMI’s (Linux) and configuring servers for specific applications
• Automation of configuration and management through Puppet
• Setting up of private networks and Sub-networks using Virtual Private Cloud (VPC) and creating security groups to associate with the networks
• Worked on AWS CloudWatch, CloudFormation and CloudTrail services
• Performed weekly and on-call deployments of application codes onto different environments like DEV, QA, UAT and PROD
• Coordinate/assist developers with establishing and applying appropriate branching, labeling/naming conventions using Subversion (SVN) and Git source control.
• Developing best practices for different monitoring scenarios
• Design and implement maintenance, monitoring and support solutions for all EC2 servers, including High Availability and Disaster Recovery plans where needed
• Integrating Nagios with other monitoring/alert solutions
• Worked on User administration setup, maintaining account, Monitor system performance using Nagios
• Involved installing and managing different automation and monitoring tools on Redhat Linux like Nagios and Puppet
• Researched and implemented an Agile work flow for continuous integration and testing of applications using Jenkins. Experience with apache, PUPPET for automation of repetitive processes
• Installed Puppet client software on RHEL 6.x servers and established a communication between master and client through SSL certification.
• Worked on Jenkins to build and test the applications
• Adding patches to keep the servers updated against bugs present in the operating system as well as other applications like VERITAS Storage Foundation, Web Sphere and Oracle
• Worked on VERITAS NetBackup 6.5 which includes installation, creating policies, configuration and upgrading servers
• Creating, cloning Linux Virtual Machines, templates using VMware Virtual Client 3.5 and migrating servers across ESX hosts
• Built server deployment on Cloud (EC2) servers with help of DevOps tools like Puppet
• Used Maven dependency management system to deploy snapshot and release artifacts to Nexus to share artifacts across projects and environments.
• Managed Git repository, code merging, and production deployments.
• Installed, configured, and maintained services such as JBoss, Apache, Tomcat and OS level services.
• Worked on configuring NIS, NFS, DNS, DHCP, FTP, FSTP, Telnet and RAID levels
• Maintained SVN repository of self-written and modified code of Powershell, PowerCLI, PERL and Bash scripts for deployment and setup of system
• Implemented rapid provisioning and life cycle management for Redhat Linux using kickstart.

Confidential, FT.MILL, SC

DevOps/Unix Administrator

• Being a part of implementation team, worked with several teams like Network, Storage, Data Center team.
• Understanding the Project requirement and submit the request to the respective teams and procure the resources and build and as per standard, hand over the server to the Application / DBA team for further configuration at their end.
• RHEL 5.x/6.x and Solaris 9/10/11 servers administering and monitoring the performance of all systems.
• Storage Provisioning, Volume and File system Management using LVM/Veritas on HPUX/Linux/Sun Solaris OS in a SAN environment
• Created a deployment procedure utilizing Jenkins CI to run the unit tests, build documentation using NaturalDocs, and create RPM packages for installation and setup the application and its dependencies
• Working on Linux LVM troubleshooting.
• Support of Applications like Apache Tomcat and Java based applications running on Linux machines for multiple clients.
• Involving and working with other team on Data Base / Application Refresh based on software life cycles.
• Researched and implemented an Agile work flow for continuous integration and testing of applications using Jenkins and Subversion
• Manage user accounts for the team access for Red Hat Satellite Server
• Build channels and pull the packages from Red Hat Satellite Server (patch and package management)
• Involved in preparation of functional and system specifications. Estimated storage requirements for applications
• Functional & non-functional requirements analysis, work estimation and prioritization.
• Installed and configured Apache/Tomcat/Java for the e-learning projects
• Deployed Puppet, Puppet Dashboard, and PuppetDB for configuration management to existing infrastructure
• Redesigned and redeployed the Nagios implementation. Nodes automatically added/removed themselves via Puppet.
• Involved in 24*7 Production support, Build and Migration Assignments

Confidential

UNIX Administrator

• RHEL 5.x/6.x and Solaris 9/10/11 servers administering and monitoring the performance of all systems.
• Configured and managed Jump Start Server on Solaris and Kick Start Server on Linux
• Working on Linux LVM troubleshooting.
• Played a Key role in Managing, Installing, and Supporting Windows 2003/2008 Servers, and VMware ESX Servers
• Working with Apache Web servers and managing Apache
• Understanding the Project requirement and submit the request to the respective teams and procure the resources and build and as per standard, hand over the server to the Application / DBA team for further configuration at their end.
• Manage user accounts for the team access for Red Hat Satellite Server
• Creating & mounting new File Systems.
• Being a part of implementation team, worked with several teams like Network, Storage, Data Center team
• Configured RAID Level 1
• Reconfiguring Kernel & applying patches.
• Performed troubleshooting of DNS, DHCP and Active directory
• Worked on HP Open View Service Desk (OVSD) tickets
• Troubleshooting of day-to-day operational problems, client side issues, and hardware problems in the systems.
• File system management.
• Build channels and pull the packages from Red Hat Satellite Server (patch and package management)
• Involved in preparation of functional and system specifications. Estimated storage requirements for applications
• Managing the VERITAS Volume Manager and LVM on RHEL 4.x/5.x
• RHEL Upgrade
• Installed and configured Apache/Tomcat/Java for the e-learning projects
• Provided 24*7 on-call support on rotation basis

Confidential

UNIX Administrator

• Configured and managed Jump Start Server on Solaris and Kick Start Server on Linux
• Configured and Managed Solaris 10 Containers and ZFS Files systems
• Upgraded from Solaris 8 to Solaris 10
• Upgraded the RHEL 3 to RHEL 4.3 and RHEL 4.4 to RHEL 5.0
• Configured Kernel parameters on request of Application tam on Solaris, Linux and HP-UX
• Configured RAID Level 1 on OS drives with Sun Solstice Disk suite and VERITAS Volume Manager 5. 0
• Managing the VERITAS Volume Manager and LVM on RHEL 4.x/5.x
• Configured IPMP on Solaris, Bonding on Linux, NTP Time server and Client.
• Package administration, Patch administration and RPM Administration
• Installed configured and managing VMware ESX server
• Working with Apache Web servers and managing JBOSS, Apache Tomcat and Websphere Application servers
• Working with storage team on EMC Storage issues and getting the EMC storage devices for new file systems
• Supporting Application Team, Storage Team, DBA Team at OS system level