SUMMARY

• About 7 years of experience in IT industry in various roles as Unix/Linux System Administrator, Build and Release Engineer, DevOps Engineer with excellent experience in Software Integration, Configuration, packaging, building, automating, managing and releasing code in various environments.
• Expertise in Design/Plan, Installation and Configuration of various Linux Flavors (CentOS, RHEL, Ubuntu, Fedora, Solaris and Debian), Windows Server 2008 - R2/2012-R2.
• Experience on AWS (Amazon Web Services) cloud services such as EC2, S3, RDS, VPC, Route 53, ELB, IAM, EBS, Cloud watch, Autoscaling, Dynamo DB, AWS SNS, AWS SQS, AWS Direct Connect for security etc.
• Performed server consolidation and virtualization using VMware ESXi 5.x/6.0,vCenter for running RedHat Linux, windows Servers on Production and Development and created VM’s on VirtualCenter server and installed guest OS using Virtual Infrastructure client.
• Experience working on severalDockercomponents likeDocker engine, Hub, Machine, Compose and Docker registry. Worked on creation of custom Dockercontainer images, tagging and pushing the images to DockerHub.
• Experience on Docker tools like Docker swarm and compose. Docker Swarm provides native clustering functionality for Docker containers, Docker Compose used to run the multi-Docker container applications.
• Managed a PaaS for deployments using Docker, Mesos and Marathonwhich reduced considerably deployment risks.
• Experienced in Installing, Configuring and Managing NoSQL technologies like MongoDB, Cassandra and relational databases like Oracle, SQLite, PostgreSQL, Dynamo DB and MySQL databases.
• Ability in development and execution of XML, Shell Scripts, Perl Scripts, Ruby, Python and PHP.
• Used Cheffor server provisioning and infrastructure automation in a SaaS (Software as a Service) environment.
• Experience with setting up ChefInfrastructure, Bootstrapping nodes, creating and uploading Chefrecipes, Chefnode convergence in ChefSCM.
• Wrote Chef recipes to automate build/deployment process and do an overall process improvement to any manual processes.
• Experience on Ansible as Configuration management tool, to automate repetitive tasks, quickly deploys critical applications, Environments configuration Files, Users, Mount points, Packages and proactively manage changes.
• Worked with Ansibleplaybooks forvirtual and physical instanceprovisioning, patchingand software deployment.
• Experience in Puppet configuration management tool to perform automated CI Builds and Deployments.Created various modules and manifests in Puppet to manage client configurations.
• Experience in Installing Puppetmaster and puppet agents on multiple nodes. Added all the nodes to master and managed various node groups.
• Experience on AWS in a DevOps Culture through Continuous Integration (CI) & Continuous Deployment/Delivery (CD) as an iterative process and Automation of Infrastructure as Code.
• Implemented Continuous Integration and Continuous deployment using various CI Tools like Hudson, Jenkins, and Nexus and have experience in setting up Upstream and Downstream Jobs Jenkins and Hudson. Worked with Jenkins Pipelines.
• Developed build and deployment scripts using MAVEN and ANT as build tools in Jenkins to move from one environment to other environments and also create new jobs and branches through Jenkins.
• Automated Weekly releases with ANT/Maven scripting for Compiling Java Code, Debugging and Placing Builds into Maven Repository.
• Well Experienced in working on Source Control Management Systems like Subversion (SVN), GIT, Bit Bucket, GitHub. Integrated GIT into Jenkins to automate the code check-out process.
• Experience in Installation and configuration of tracking tools such as JIRA, Remedy, and Bugzilla for bug tracking, issue tracking and agile methodology.
• Responsible for configuring Volume Group using LVM, Logical and Physical Partitions andImporting New Physical Volumes and Managed file system, created swap, monitored and extended volume groups
• Experience in Installing and setting up of RAID hardware/software for data backup and storage. Highly experienced in creating new file systems, mounting file systems and unmounting file systems.
• Expertise in Installation and Configuration on Networking concepts such as TCP/IP, DNS, DHCP, NIS, NFS,LDAP and web hosting administration such as HTTP, SSH, Send Mail, Remote Access servers, Security Management & Security trouble shooting skills.
• Experience in using FTP, Samba protocol to transfer data between servers (Production and Development) for code drops.
• Experience in configuring Nagios, Splunk for monitoring Infrastructure resources. Automated Nagios alerts and email notifications using python script and executed them through Chef.
• Team player with good management, analytical, communication and interpersonal skills.

TECHNICAL SKILLS

Operating Systems: RHEL/CentOS 5.x/6.x/7, Ubuntu/Debian/Fedora, Sun Solaris 7/8/9/10, Windows Server 2008-R2/2012-R2

Network Services: TCP/IP, LDAP, NFS, NIS, DNS, DHCP, SSH, SAMBA and FTP

Protocols: HTTP, TCP/IP, SMTP, DNS, DHCP, FTP.

Database: MySql, MongoDB, Dynamo DB, Casandra, PostgreSQL, SQL Server

Web/Application Server: Apache Tomcat, WebSphere Application Server, JBoss

Scripting Tools: Shell Script, Bash, Perl Script, PHP, Python, Ruby

Ticketing: JIRA, Remedy, Request Tracker, Bugzilla

Programming Languages: C, C++, Java/J2EE, PHP, Python, HTML

Build/Automation Tools: Puppet, Chef, Ant, Maven, Ansible, Jenkins, Hudson & Docker

PROFESSIONAL EXPERIENCE

Confidential - Vancouver, WA

Jira Admin/Cloud Engineer

Responsibilities:

• Involved in Launching and configuring of Amazon EC2 (AWS) Cloud Servers using AMI's (Linux/Ubuntu), configuring security groups, setting up Elastic IP's, Elastic Load Balancer, Auto-scaling config, Cloud Formation templates and deployed AWS resources using it.
• Involved in creating S3 buckets and also managing policies for S3 buckets and Utilized S3 bucket and Glacier for storage and backup on AWS.
• Configured AWS Identity and Access Management (IAM) Groups and Users for improved login authentication, allowing access permissions and policies for all AWS services.
• Used AWS Cloud Watch in order to monitor resources and applications by creating alarms to monitor metrics such as EBS, EC2, ELB, RDS, IAM, S3, SNS and configured notifications for the alarms generated based on events defined.
• Defined AWS Security Groups which acted as virtual firewalls by allowing inbound and outbound rules as per the need of applications that controlled the traffic and to reach one or more AWS EC2 instances.
• Involved in automating the software and dependency package installation process from source following configure, make, and make install steps using shell scripts.
• Involved in writing bash scripts and setting up cron jobs in order to automate the process of log rotation. Maintaining Multi zone data backup on Amazon EC2, S3 and locally maintaining data archives using daily/weekly/monthly log rotate scheme
• Involved in Installation and configuration of Oracle DB, MySQL, Mongo DB, PostgreSQL database on EC2 instances of RedHat servers
• Monitored the various database activities by developing shell scripts and used crontab to schedule backups based on business requirements.
• Worked on Installation and Implementation of Ansibleconfiguration management system and usedto manage Web applications, Environments configuration Files including database administration and scaling an application and support load changes, Users, Mount points and Packages.
• Managed Ansible Playbooks with Ansible roles. Used file module in Ansible playbook to copy and remove files on remote systems. Created inventory in Ansible for automating the continuous deployment and wrote playbooks using YAML scripting.
• Created and Maintained Chef Recipes and Chef Cookbooks to simplify and expedite deployment of applications and mitigate user errors.
• Implemented Chef Recipes for Deployment on build for on internal data servers. Also re-used and modified same Chef Recipes to create a Deployment directly into Amazon EC2 instances.
• Created and maintained Subversion (SVN) repositories, branches and tags across environments and continually build the check-ins from the developer.
• Worked on Installing, configuring and upgrading apache Tomcat application server and used to build and deploy Java/J2EE applications to Tomcat Application servers in an agile continuous integration process and automating the whole process. Involved in periodic archiving and storage of the source code for disaster recovery.
• Configured Jenkins to implement nightly builds on daily basis and generated change log that includes changes happened over the previous day.
• Used Maven as a build tool and required settings are configured to deploy the artifacts to Nexus repository manager and further deploy on to Tomcat servers
• Updated organization’s Confluence by documenting the automation procedure of Ansible playbooks and other application installation process.
• Used to manage tickets using JIRA ticketing tool, created projects, assigning permissions to users and groups for the projects & created mail handlers and notification schemes for JIRA.
• Create complex JIRA workflows including project workflows, field configurations, screen schemes, permission schemes and notification schemes.
• Installed and configured monitoring tools Nagios for monitoring the network bandwidth and the Disk status.
• Involved in the installation and configuration of Nginx as a web server and used to configure network services such as DNS, NFS, SMTP, NTP, DHCP, LDAP, FTP, SSH protocols.
• Configured yum repository server for installing latest required packages from a centralized server. And also created local repository in yum.repos.d to run packages using yum, rpm and update them regularly.

Environment: AWS, Jenkins, Maven, Apache, Nexus, Chef, Ansible, Nagios, JIRA, SVN, NFS, DNS, DHCP, SMTP, FTP, SSH, Shell, Bash Scripting, Tomcat, Nginx.

Confidential - Madison, WI

Jira Admin/ System Engineer

Responsibilities:

• Installed, Deployed Red Hat Enterprise Linux 6.x/7.x, CentOS and installation of packages and patches for Red Hat Linux Servers.
• Worked on AWS Cloud platform and its features which include EC2, VPC, ELB, AMI, SNS, RDS, EBS, Cloud Watch, Cloud Trail, Cloud Formation AWS Config, Autoscaling, CloudFront, IAM, S3.
• Designed AWS Cloud Formationtemplates to create custom sized VPC, subnets, NAT to ensure successful deployment of Web applications and database templates.
• Defined AWS Security Groups which acted as virtual firewalls that controlled the traffic allowed reaching one or more AWS EC2 instances.
• Implemented and maintained the monitoring and alerting of production and corporate servers such as EC2 and storage such as S3 buckets using AWS Cloud Watch.
• Configured AWS Identity and Access Management (IAM) Groups and Users for improved login authentication.Provided policies to groups using policy generator and set different permissions based on the requirement along with providing Amazon Resource Name (ARN).
• Worked on Installation/Configuration/Administration of VMware ESXi 5.5 & 6.0 and migrated existing servers into VMware Infrastructure.
• Worked on installation of Docker using Docker toolbox and creating the Docker containers, Docker consoles and Docker container images for managing the application life cycle by tagging and pushing the images.
• Worked on Docker engine and Docker Machine environments, to deploy the micro services-oriented environments for scalable applications, Docker swarm to host cluster and container scheduling, Docker compose to define multiple container applications.
• Implemented several Tomcat Instances by using the Docker engine for running several Containerized AppServers.
• Involved in architecture changes from single server large software system to a distributed system with Docker and Kubernetes orchestration.
• Developed an opensource project with Kubernetes to manage a cluster of Linux containers, running Docker containers across multiple hosts.
• Highly involved in Configuring, monitoring and multi-platform servers by defining Chef server from workstation to manage and configure Chefnodes.
• Development of Chef recipes through Knife command-line tool to create Chef cookbooks to manage systems configuration.
• Used Chef to manage Web Applications, Configuration Files, Database, Users, Mount Points, and Packages.Deployed and configured Chef Server and Chef Solo including bootstrapping of chef client nodes for provisioning.
• Designed and implemented internal best practices, cookbooks, and automated cookbook with CI and CD system. Made use of Jenkins for Chef CI.
• Experience in Installing, Configuring and Managing MySQL databases, Tomcat, JBOSS, Weblogic and WebSphere Application servers for deployments.
• Created and wrote shell scripts (Bash), Ruby, Python, and PowerShell for automating tasks.
• Good hands on experience in using build tools like MAVEN and ANT for the building of deployable Artifacts such as War & Ear from Source Code.
• Responsible for installing Jenkins master and slave nodes. Configured Git with Jenkins and schedule jobs using POLL SCM option.
• Configured local Maven repositories and multi-component Ant projects with Nexus repositories and scheduled projects in Jenkins for continuous integration.
• Experienced in branching, tagging and maintaining the version across the environments using SCM tools like GIT, Subversion (SVN) and TFS on Linux and windows platforms.
• Experience in configuring Nagios, Splunk monitoring tool for monitoring the server/app status, disk space issues, and log parsing.
• Used Nagiosas a monitoring tool to identify and resolve infrastructure problems before they affect critical processes and worked on NagiosEvent handlers in case of automatic restart of failed applications and services.
• Worked with different Bug Tracking Tools like Remedy, JIRA in tracking the issues, workflows, pulling reports from dashboard.
• Customized both JIRAand Confluence to integrate into the pre-existing systems with an eye towards making the programs extensions of their systems, and not hindrances to their systems
• Involved in Installing, configuring and maintaining various network services including DNS, DHCP, FTP, NFS, SSH, SMTP.
• Experience in Installation, Configuration, Implementation, up-gradation, Maintenance and Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring.

Environment: AWS, Jenkins, Chef, Ansible, Docker, Nagios, JIRA, Remedy, VMware ESXi, 5.5, 6.0, Git, NFS, DNS, DHCP, SMTP,FTP, SSH, Ruby, Python, Scripting, JBoss, Nginx.

Confidential - Foster city, California

Jira Admin

Responsibilities:

• Hands on experience in Amazon Web Services (AWS) environment and good knowledge of AWS services like Elastic Compute Cloud (EC2), Elastic Load-balancers, S3, Elastic Beanstalk, Cloud-Front, RDS, Route53, Cloud-Watch, Cloud-Formation, IAM.
• Defined AWS Security Groups which acted as virtual firewalls that controlled the traffic allowed reaching one or more AWS EC2 instances.
• Involved in setting up scalability for application servers using command line interface and administering DNS system in AWS using Route53.
• Extensive experience in performing SystemAdministration for Red Hat Enterprise Linux (RHEL) 5x/6x, VMware ESXi 5.4/5.5, Windows 2008/ 2012 servers.
• Responsible for creating Puppetmodules and manifest files from scratch and experience in editing existing Puppetmanifests and automated manual installation processes using Puppet.
• Developed Puppet modules to automate deployment, configuration, and lifecycle management of key clusters and various deployments on third party applications.
• Working experience in container based deployments using Docker, working with Docker images, Docker Hub and Docker registries.
• Experience in DevOps essential skills like continuous integration, continuous delivery, continuous deployment, supporting Build Pipelines Release Management, configuration management (Infrastructure as a code) and cloud computing.
• Installed and configured Jenkins master and slave nodes, installed plug-in, configured security, created a master and slaves for implementation of multiple parallel builds. Designed the project pipelinesusing Jenkinsand troubleshoot Jenkinsjob failure issues.
• Managed NexusMaven repositories to upload and download the build artifacts after a successful build and used Build forge for Continuous Integration and deployment into Tomcat Application Server.
• Administered and Engineered Jenkins for managing weekly Build, Test and Deploy chain as a CI/CD process, SVN/GIT with Dev/Test/Prod Branching Model for weekly releases. Expertise in using builds tools like MAVEN and ANT for the building of deployable artifacts such as war & ear from source code.
• Extensive experience in using Version control systems includes Subversion (SVN), GIT and GITHUB, BitBucket
• Worked on configuration and administration of LVM as extending Volume Groups, Logical Volume and Physical Volume Size.
• Installed, configured and maintained web servers like Apache Web Server and WebSphere Application Server on Red Hat Linux.
• Designed, implemented, maintained and troubleshooting of High available critical applications running on Apache and MySQL/PostgreSQL database.Have a good experience on Oracle, DB2 and RDBMS, Couchbase, Cassandraand MongoDB.
• Worked with Splunk and AppDynamics monitoring using custom monitors, maintaining and adjusting existing monitors and responding to generated requests.
• Wrote Bash scripts for at, anacron and cronjob entries, this included in maintaining various log files.
• Followed agile principles and used JIRA and Remedy for maintenance and Bug development tasks.
• Good experience in working with a team together to deliver best outputs in given time frames.

Environment: AWS, Git, Jenkins, Puppet, Docker, Nagios, JIRA, Remedy, AWS, EC2, S3, Route53, IAM, Java/J2EE, ANT, MAVEN, Web Logic, Shell Scripts.

Confidential - Bethesda, MD

Build and Release Engineer

Responsibilities:

• Extensively worked on Installation and configuration of Redhat Linux 5 /6, IBM AIX 5.X and Windows 03/08 Servers on large distributed environment.Primary responsibilities include Build and Deployment of the java applications into different environments like Dev, INT and QA.
• Good understanding of the principles and best practices of Software Configuration Management (SCM) in scrum (Agile Methodology).
• Used MAVEN as build tools on Java projects for the development of build artifacts on the sourcecode.
• Automating the buildprocess by configuring Subversion for Java projects using Maven and tracking the build for defects.
• Experience in configuring and deploying Java and J2EE applications into application servers (Rational WebSphere, Jboss and Apache Tomcat).
• Deployed and implemented NIS, DHCP and DNS environment and implemented and maintained Proxy Server under Linux issues regarding Samba Servers and perform hardware and software installs/upgrades.
• Responsible for design and maintenance of the Subversion/GIT Repositories, views, and the access control strategies.
• Working on deployment procedures using middleware like Web sphere, creating deploy scripts and setting for the Production Release.
• Knowledge on continuous integration process using Jenkins and automating the build by deploying the source code.
• Responsible to perform Build operations with ANT Scripts, while implementing the required modifications in the ANT Script to perform build operations, in accordance with requirements of the project.
• Maintained build related scripts developed in ANT and Shell. Modified build configuration files including Ant's build.xml.
• Updated Maven build configurations and created integration tests and performance tests Managed SVN branching and merging for older projects in multiple simultaneous releases.
• Administered SVN for version control to include branching and merge management, andJIRA to track process defects.
• Executed user administration and maintenance tasks including creating users and groups, reports and queries.
• Coordinated with the Project Management, Development and QA Team in resolving any configuration and deployment issues, and to provide smooth releaseprocess.

Environment: Subversion, GIT, Maven, ANT, Jenkins, JIRA, JAVA, J2EE, Linux, Web sphere, Jboss, Apache Tomcat.

Confidential

System Administrator

Responsibilities:

• Installed, Upgraded and configured Red Hat Enterprise Linux (5/6) and IBM AIX 6.1 OS, IBM Blade servers and P-Series Servers using Kickstart, NIM and CD media.
• Responsible for installation, configuration, support and performance monitoring of high profile applications running on IBM WebSphere Application Servers, WebSphere Process Server and integrate with different Web Servers and configuration of web apps.
• Troubleshooting WebLogic Application Server connection pools and connection manager with Oracle9i.Working on Web servers; JBoss, Tomcat 7.x & Apache Server 2.2.
• Creation of Logical volumes (LVM) for Red Hat Linux and IBM AIX operating systems.
• Implementing Raid levels and changing Boot PROM values according to the requirement, experience in configuring, monitoring and troubleshooting various file systemslike Ext 3, Ext 2, UFS, NFS and JFS.
• Troubleshooting and resolving of problems related to hardware, operating systems, third party applications and scripts. Written shell scripts to automate the administrative tasks using cron and at in AIX and Linux.
• Configuration and Administration of NFS, NIS, NIS+, LDAP, DNS, Samba and Sendmail Servers.
• Configured yum repository server for installing packages from a centralized server. And also created local repository in yum.repos.d to run packages using yum, rpm and up to date.
• Implemented the monitoring tools like Nagios to monitor services like CPU, Hard Drive, Memory, Users, HTTP and SSH etc.
• Working on VMware environment for creating VM’s and troubleshooting using VMware ESXi 5, 5.5 and Oracle Virtual Box
• Resolving request tickets (RT-Request Tracker Tool) on daily basis related to user access, file systems etc.
• Responsible in managing all aspects of the software configuration management process including code compilation, packaging, deployment,releasemethodology and application configurations.
• Initiating backups on daily basis and monitoring the scheduled backups. .
• Provided Oncall Support for Redhat Linux and IBM AIX server environments.

Environment: RedHat Linux (5/6), IBM AIX 6.1, Apache 1.3.x, 1.2, 2.x,and Oracle 9i, bash/ksh shell, Samba, DNS, APACHE, NFS, DHCP & FTP.

Confidential

Linux/Unix System Administrator

Responsibilities:

• Deployment and maintenance of Redhat Linux, Windows Server 2000, 2003 and ESX/ESXi servers and app software in across the network mostly Dell, Confidential and IBM hardware.
• Involved in design, configuration, installation, implementation, management, maintain and support for the corporate Linux servers RHEL 3, 4, 5, CENTOS 5, Ubuntu.
• Involved in creating new users, groups and setup their home directories and appropriate access restrictions to software and directories & files.
• Updating and upgrading Red Hat Enterprise Linux servers with YUM and RPM repositories.Involved in creating Logical Volume Manager (LVM) for Linux operating systems. Managed Virtual Memory and swap space on RedHat Linux Servers.
• Developed Korn, Bourne and Bash shell-scripts to automate routine activities.
• Configured LAN, WAN and managed Network troubleshooting applications TCP/IP including Ethernet, IP addressing & Sub netting, routing. Configuring modems & network printers.
• Manage user accounts and authentication process by NIS service. Configuration of DNS, NFS, APACHE, MAIL, DHCP& FTP Servers in RedHat Linux 5.x.
• Responsible for configuring and connection to SSH through Putty. And also Password-less setup and agent-forwarding done for SSH login using ssh-keygen tool.
• Maintaining the Linux Firewall for network and implement to the network security, implementation of Samba to help printing and file sharing in the mixed Environment. Written Shell scripts to run Batch Jobs using cron on production servers.
• Provided support by 24x7 shift rotation basis and pager support.
• Monitored trouble ticket queue to attend user and system calls, attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment.

Environment: RedHat Linux 3,4,5.x, Windows 2000/2003, Apache 1.3.x, 1.2, 2.x, IIS 4.0, bash/ksh shell, Samba, DNS, APACHE, NFS, MAIL, DHCP, FTP, SSH