SUMMARY:

• Around 10+ years of IT professional experience as a Linux System Administrator and DevOps Engineer which include Build Management, Continuous Integration and Continuous Delivery using different tools.
• Proficient in writing Chef recipes for installing, configuration, and upgrading different applications on the Servers.
• Worked with Chef Enterprise, Bootstrapped Nodes, Wrote Recipes, and uploaded them to Chef - server.
• Developed Chef Recipes to configure software components of the existing infrastructure.
• Proficient in writing different Ansible playbooks and maintaining different Ansible roles.
• Experience in Designing, Installing and Implementing Ansible configuration management system and in writing playbooks for Ansible and deploying applications
• Experience in working with different build tools like Ant and Maven to achieve End-to-End Automation.
• Expertise in using Jenkins as CI tool to creating new jobs, managing required plugins, configuring the jobs.
• Extensively worked on Jenkins and Hudson by installing, configuring and maintaining Continuous Integration(CI) and for End to End automation for all build and deployments.
• Responsible for Continuous Integration (CI) and Continuous Delivery (CD) process implementation using Jenkins along with Shell scripts to automate routine jobs.
• Experience in bug tracking tool such as Jira.
• Familiar with designing and deploying container-based production clusters using Docker.
• Experienced with Docker container service. Creating Docker files, Docker Images & Containers
• Performed Splunk administration tasks such as installing, configuring, monitoring and tuning.
• Experience in Amazon Web Services(AWS) such as VPC, EC2, ELB, RDS, S3.
• Experience with Amazon AWS cloud creating EC2 instances, security groups, EC2 container services and Amazon elastic block store.
• Experience in System Administration on various platforms which includes RedHat Linux, Solaris and VMWARE.
• Extensive experience in creating and managing users & groups, permission settings, roles and responsible assignments.
• Experience in scheduling jobs at a specific time and/or day on an on-going basis by using Crontab.
• Worked on Linux Package installation using RPM and YUM, provisioned system with LVM.
• Expertise in automating builds and deployment process using Bash, Python and Shell scripts.
• Remote system administration via services like SSH and Telnet.
• Managed user accounts and groups on Linux Servers.
• Experience in administering Web Logic, Solaris &Linux.
• Experience in Installation, Configuration, Backup, Recovery, Maintenance, and Support of Solaris & Linux servers.
• Experience in RAID solutions, Disk and volume management.
• Used to perform day to day administrative task using UNIX shell scripting and Python scripts used to automate day to day administrative tasks.
• Experience in Operating System maintenance activities like upgrading the OS, updating the services.
• Administered Linux servers for several functions including managing Apache/Tomcat server, mail server, MySQL database, and firewalls in both development and production.
• In-depth knowledge of NFS, DHCP, FTP.
• Proficient in using Version Control tools such as GIT & SVN.

TECHNICAL SKILLS:

Operating System: RHEL, Ubuntu, Cent OS, Solaris

Automation Tools: Chef, puppet, Ansible, Vagrant, Docker

Build Tools: Ant, Maven

Integration Tool: Jenkins

Bug Tracking: JIRA

Monitoring Tools: Nagios

Scripting Languages: Shell, Python, Bash

Version Control Systems: GIT, GITHUB, SVN

Web Servers: Web Sphere, Apache Tomcat

Cloud Platforms: Amazon Web Services (AWS)

PROFESSIONAL EXPERIENCE:

Confidential,Herndon, VA

Sr. DevOps Engineer/Linux Administrator

• Proficient in Writing Chef Recipes to automate our build/deployment process and do an overall process improvement to any manual processes.
• Managed multiple cookbooks in Chef and Implemented environments, roles, and templates in Chef for better configuration management.
• Designed, Installed and Implemented Ansible configuration management system.
• Implementing new project builds using build tools such as Ant& Maven.
• Implementing a Continuous Delivery framework using Jenkins, Chef and Maven in Linux environment.
• Installing, configuring and administering Jenkins Continuous Integration tool on Linux machines.
• Installing and configuring Jenkins master and slave nodes. Built CI/CD pipeline and managed the infrastructure.
• Configured and maintained Jenkins to implement the CI process and integrated the tool with Ant and Maven to schedule the builds.
• Automated deployment of builds to different environments using Jenkins/Hudson CI tools.
• Performed Splunk administration tasks such as installing, configuring, monitoring and tuning.
• Experience with container based deployments using Docker, working with Docker images, DockerHub, Docker registries.
• Worked on Integrated JIRA with subversion and Jenkins to automate the weekly build process. Used JIRA workflows to automate deployment and issue tracking.
• Used Amazon cloud modules like EC2, S3.
• Launching Amazon EC2 Cloud Instances using Amazon Web Services (Linux/ Ubuntu) and Configuring launched instances with respect to specific applications.
• Created and maintained several build definitions and publish profiles to handle automated builds in an Agile / SCRUM environment.
• Integrated GIT into Jenkins to automate the code check-out process.
• Responsible for the day to day administration of RHEL 6.x which includes installation, testing, upgrading and troubleshooting server issues.
• Strong and progressive experience in the server installation of Red Hat Linux, Cent OS,VM Ware.
• Worked on Yum, RPMs, LVM, Boot from SAN, file system configuration.
• Proficient in RPM and YUM package installations.
• Responsible for design and maintenance of the Subversion/GIT Repositories, views, and the access control strategies.
• Performed all necessary day-to-day Git support, implemented, maintained the Branching, Build/Release strategies utilizing Git repositories.

Environment: RHEL6.x, VM Ware, Chef, Ansible, Jenkins, ANT, Maven, Splunk, Docker, Jira, EC2, S3, GIT, Sub Version (SVN).

Confidential,Auburn Hills, MI

DevOps Engineer/Linux Administrator

• Developed Chef recipes for Tomcat, MySQL and versioned them on Git repositories and Chef Server.
• Written Chef recipes for various DB configurations to modularize and optimized product configuration.
• Bootstrapping instances using Chef and integrating with auto scaling.
• Configuration Management using Chef and maintaining admin related files.
• Worked on Ansible for configuration management and infrastructure automation.
• Used Ansible to manage Web applications, Configuration Files, Users, Mount points and Packages.
• Carried automated Deployments and builds on various environments using continuous integration(CI) tool Jenkins.
• Used Git for source code version control and integrated with Jenkins for CI/CD pipeline and code quality tracking.
• Experience in Virtualization technologies like VMWare, Vagrant and worked with containerizing applications like Docker.
• Created and implemented chef cookbooks for deployment and used Chef Recipes to create a deployment directly into Amazon EC2 instances.
• Responsible for Installation, configuration, Maintenance, Deployments, Update & Performance monitoring on Linux (RHEL).
• Responsible for Build and Install Schedules using Unix CRON jobs.
• Expertise in using scripting like Bash Shell scripts.
• Configured Firewall and security using IP tables.
• Expertise in Linux backup/restore with tar including disk partitioning and formatting.
• Designed and implemented internal Linux Infrastructure, performed software installations, upgrades, troubleshooting and maintenance of Linux system.
• Involved in installing and configuring GIT distributed version control tool.
• Responsible for design and maintenance of the Git repositories, views, and the access control strategies.
• Managed Git repositories for branching, merging, and tagging.
• Incident management reports, including initial problem analysis, management status, resolution, and follow up defect reporting in an automated fashion.
• Experienced in deployment of applications on Apache Web server, and Application Servers such as Tomcat.

Environment: RHEL 5.x,6.x, Ansible, Chef, Jenkins, VMWare, GIT, Sub Version, Apache Web Server, Tomcat, MySQL, Vagrant, EC2, Bash, Docker.

Confidential,Dearborn, MI

Build & Release Engineer/Linux Administrator

• Installed and configured operating system RedHat Enterprise Linux.
• Configured Linux Firewall with IPTABLES.
• Package management with the use of YUM & RPM on Red Hat Linux.
• Performed account administration, created users and groups, also added users to the appropriate group.
• Involved in Storage management, LVM, File system management, User account management &data backups.
• Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Experience in Virtualization technologies like VMWare &Vagrant.
• Wrote Shell scripts to automate several routing tasks, system performance etc.
• Maintained source code in GIT and handled branching, tagging & merging process.
• Performed all necessary day-to-day Subversion/GIT support for different projects.
• Used Chef to manage Web Applications, Config Files, Data Base and Packages.
• Utilized Configuration Management Tool Chef and wrote Chef Cookbooks to automate system operations using recipes in Chef supermarket.
• Used Jenkins/Hudson to automate builds and deployments.
• Worked on integrating GIT into the continuous Integration (CI) environment along with Jenkins.
• Experience in working with different build tools like Ant and Maven to achieve End-to-End Automation.

Environment: RHEL 5.x, Bash, Vagrant, Sub Version (SVN), GIT, Chef, Ant, Maven, Jenkins.

Confidential

Sr. Linux Administrator

• Installation, configuration, backup, recovery, maintenance and support of RedHat Linux and Solaris.
• User account management, worked with Perl, shell scripting (bash) to automate administration tasks.
• Responsible for installing, upgrading and managing packages via RPM and YUM.
• Experience in creating Disk Partitions, Logical Volume Manager (LVM) and RAID.
• Managed user accounts and groups on Linux Servers.
• Configuring SUDO and granting root permission to users for performing certain activities.
• Administered Linux servers for several functions including managing Apache/Tomcat server, mail server, MySQL database, SVN.
• Performed deployment, ongoing maintenance& configuration of systems for maximum availability, security, performance, and documentation in a Linux based production environment.
• Responsible for implementing & managing of RAID levels like RAID 0, RAID 1, RAID 5.
• Installed new servers using kick-start installation, lockdown the servers and perform performance tuning for database installation and configuration.
• Monitored Linux server for CPU Utilization, Memory Utilization, and Disk Utilization for performance monitoring using TOP & SAR.
• Installation, maintenance and regular upgrades of RedHat Linux Servers.
• Resolved several boot related issues such as ensuring that specific kernels are used which integrate well with existing programs.
• Resolved network related problems involving network systems such as DNS and DHCP using TCP/IP related tools.
• Managed storage related issues such as logical volumes on both physical and remote servers.
• Created BASH shell scripts to automate cron jobs and system maintenance. Scheduled cron jobs for job automation.
• Building & configuring RedHat Linux systems over the network, implementing automated tasks through crontab, resolving tickets according to the priority.
• Trouble shooting day-to-day systems issues involving hardware failures and server space issues.
• Supported a large-scale Data Center projects including server installation, hardware maintenance and break/fix activities.

Environment: RedHat Linux4.x, 5.x, Solaris, Bash, Perl, Kickstart, Subversion, Apache Tomcat, MySQL.

Confidential

Linux Administrator

• Responsible for the development and maintenance of the operating system images used on all production Linux servers.
• Installation and administration of RHEL.
• Expertise in Linux backup/restore including disk partitioning and formatting.
• Performed LVM operations in Linux (RHEL) to set up file systems.
• User account management and administration; Troubleshooting User's login & home directory related issues.
• Creating and administering users File System and user accounts on SUN Solaris Servers
• Systems monitoring and administration of SUN Solaris and RedHat Linux Servers for day-to-day problems in production environment and solved tickets on shift basis.
• Monitored Linux server for CPU Utilization, Memory Utilization, and Disk Utilization for performance monitoring.
• Worked with DBA team for database performance issues, network related issues on Linux / Unix Servers and with vendors for hardware related issues.
• Installed and configured SSH for secured access.
• Remote system administration using services like SSH, Telnet, and Rlogin.
• Administered local and remote servers using the SSH service on daily basis
• Providing day-to-day user administration like adding or deleting users.
• Setting password aging and account expiration for the users.
• Performed patching, backups on multiple environments of Solaris, Linux and VMware.
• Restrict access to files and directories using file permissions. Set UID, GID and sticky bit on files as needed.
• Setting up network environments using TCP/IP, NIS, NFS, DNS, DHCP and Proxy.
• Experience in implementing high availability clusters using RedHat Cluster Solution (RHCS) with EXT3 and EXT4 file systems.

Environment: RedHat Linux4.x, Solaris, VMWare, Apache Tomcat, KickStart, WebSphere.