SUMMARY

• 8+ years of comprehensive IT experience in Build/Release Engineering, Development/Operations DevOps engineering with in - depth knowledge of Linux/Unix Administration including System & Network Administration, Cloud Operations Engineering in AWS, Virtualization process using VMware, Vagrant along with the best use of Scripting languages such as Bash, Python, and Ruby to consolidate the workflow within organization with Agile, ITIL best practices.
• Extensive experience in Automation, Configuring and Deploying instances on Amazon web services AWS including EC2, ELB, Auto Scaling, S3, Lambda, VPC, Route53, Cloud watch, Cloud trail, AMI, IAM, Security groups, SNS and Roles.
• Experienced in setting up Amazon EC2 instances, virtual private cloud (VPC), and security groups. Setting up databases in AWS using RDS, storage using S3 bucket and configuring instance backups to S3 bucket.
• Experience in using configuration management tools like Chef, Puppet and Ansible.
• Experience in writing Chef cookbooks in all aspects of chef concepts like Chef Server, Chef Automate, Chef workstations, Chef Nodes, Chef Client and various chef components like push jobs, super market etc.
• Experience configuring and managing Puppet master server, updating, and creating modules, pushing them to Puppet Client. Worked on Puppet Dashboard and Puppet DB for configuration management.
• Worked on Ansible and Ansible Tower as Configuration management tool, to automate repetitive tasks, quickly deploys critical applications, spin-up nodes in AWS and proactively managing changes using Ansible Playbooks.
• Good knowledge over CI/CD Methodologies. Worked on Jenkins including installations, Configuration, for CI and End to End automation for all builds and deployments.
• Deployment to AWS with Chef, Ansible and Terraform towards AWS, and using Terraform for building, updating, and versioning infrastructure safely and efficiently, as well as creating custom in-house solutions with Chef or Puppet configurations.
• Expertise in scripting playbooks to create networks, routers, VMs using OpenStack REST APIs. Deployed various services of OpenStack in Linux Containers.
• Configured Cloud Compute systems using OpenStack on Ubuntu, collaboration using Orchestration with Keystone, Kubernetes within OpenStack.
• Experienced in Build automation using Ant/ Maven and implementation of Continuous Integration through Jenkins. Experienced in creating jobs, pipelines in Jenkins with different Jenkins plugins to integrate with different services/tools.
• Experienced in administering and supporting the code versioning tools like GIT (GITHUB), Subversion SVN and CVS on UNIX/LINUX environments. Experience in using tools like Foreman for complete lifecycle management of both physical and Virtual servers.
• Hands on Experience using Microsoft Azure and Application Deployments using Terraform and Puppet in Azure.
• Experienced in various service models from cloud computing providers such as IaaS, PaaS, and SaaS.
• Worked on Vagrant for provision of Virtual Machines via Shell scripts and configuration management tools.
• Experienced using Docker for Application Isolation, Rapid Deployment, Build management and configuration simplification. Used Docker Hub public registry/repository to download Images and build new Containers.
• Experience in creating Docker containers and Docker consoles for managing the application life cycle. Good knowledge on Docker components like Swarm manager for Docker swarm clusters, Prometheus server and Grafana for machine-centric monitoring as well as monitoring of highly dynamic service-oriented architectures.
• Familiarity Mesos and Kubernetes for orchestration and management of containers across multiple server hosts.
• Experienced using Open source reverse proxy Web server nginx, cross platform Web server Apache HTTP, HAproxy and Citrix NetScaler for Web Monitoring and IP Filtering using SSL/TLS, Load Balancing, Web Acceleration, and Security.
• Experience in Bash, Python, and Ruby scripting for setting up the Baseline, Branching, Job Automation, Merging processes and Administrative tasks.
• Experienced in Performance tuning of various Application Servers, such as IBM WebSphere 7/8, WebLogic (11gR1,12cR1, 12cR2), Apache Tomcat (7/8), JBoss AS 7 Oracle, and DB2.
• Extensive experience in Installing, upgrading, and configuring CentOS 5.x 6.x 7.x on X86-64, RHEL 5.x, 6.x, 7.x, Ubuntu 14.04.x (Trusty) 16.04.x (Xenial), Solaris 10, 11.2, Open SUSE 10.2 (Basilisk Lizard) 12.1 (Asparagus), HP-UX 11i V2, IBM-AIX V7.1, Debian 6.0 (Squeeze).
• Experienced in installations and configuration of various Linux services like LAMP, DHCP, NFS, send mail, Apache Web Server, Samba, SSH, HTTP and administering Active Directory, LDAP, group policies.
• Install, upgrade and manages packages via RPM and YUM package management. Extensive experience on Kickstart installations in Linux, Jumpstart installations in Solaris.
• Extensive exposure towards creating and managing user accounts, system security, performance tuning, scheduling the jobs, change management, Documents, and procedures on Linux.
• Experience working in RAID Configuration, Veritas Cluster Server, Veritas Volume manager, Logical Volume Manager LVM, and Veritas Net Backup.
• Extensively used Infrastructure monitoring tools like Nagios for monitoring network and severs, Splunk for Enterprise Log Management and Application management. Experience in using tools like JIRA and Service Now for consolidated workflow within various teams with ITIL best practices.

TECHNICAL SKILLS

Operating Systems: Redhat-5/6/7, Ubuntu 14/16, CentOS 5/6/7, Sun Solaris 10/11.2, HP-UX 11i V2, IBM-AIX V7.1, Debian 6.0.

Configuration Management: Ansible, Chef, Puppet, Kickstart

Build Tools: Ant, Maven, Gradle

Cloud Environment: Amazon Web Services, OpenStack

CI/CD Tools: Jenkins, Bamboo

Scripting Languages: Shell, Python, Perl, YAML, RUBY, JSON, JAVA

Monitoring Tools: Nagios, Splunk, Zabbix, CloudWatch, New Relic, Elasticsearch, Logstash, Kibana

Source Code Management: Subversion, GIT, SVN, Bitbucket, and CVS

Databases: SQL Server, Oracle, MySQL

DevOps Tools: Docker, Jira, Bugzilla, Kubernetes, Terraform

Networking/Protocol: TCP/IP, NIS, NFS, DNS, DHCP, WAN, SMTP, LAN, FTP/TFTP

Web/Application Servers: Apache Tomcat, Web Logic, Oracle, Application Server, Ngnix

PROFESSIONAL EXPERIENCE

Confidential, New York, NY

Sr. Systems Engineer (DevOps)

Responsibilities:

• Created AWS Cloud Formation templates to create custom-sized VPC, subnets, EC2 instances, ELB, security groups. Managed other AWS Services like S3, Cloud Front, Cloud Watch, RDS, Kinesis, Redshift Cluster, Route53, SNS, SQS, and Cloud Trail.
• Created S3 buckets and managed policies for S3 buckets and utilized S3 Buckets and Glacier for storage, backup and archived in AWS and worked on setting up and maintenance of Auto-Scaling AWS stacks.
• Developed Cloud Formation script to automate the EC2 instances with JSON templates.
• Deploy OpenStack environments through automated tools, Ansible / custom pipeline and Terraform for Infrastructure Automation.
• Experience working with Jenkins to build and deploy java code from Github to the production servers using Continuous Integration and Continuous Delivery (CI/CD) pipeline.
• Worked on Ansible and Ansible Tower as Configuration management tool, to automate repetitive tasks, quickly deploys critical applications, and proactively manages change.
• Implementation of horizontal auto-scaling use cases using OpenStack components - Heat, Ceilometer, Lbaas.
• Worked on Atlassian Tools (Bamboo, Bitbucket, JIRA, Confluence, etc) and integrated all of them to set OAuth Impersonation and provided Server-Side support to provide access to all Applications Teams.
• Configuring and Networking of Virtual Private Cloud (VPC) Written Cloud Formation templates and deployed AWS resources using it.
• Installed and administered Docker and worked with Docker for convenient environment setup for development and testing.
• Creation and maintenance of fully automated CI/CD pipelines for code deployment using Octopus Deploy.
• Used Docker container clusters to clone the production servers and implementing Kubernetes orchestration for clones production servers.
• Implemented a production ready, load balanced, highly available, fault tolerant, auto scaling, Kubernetes AWS infrastructure and micro service container orchestration.
• Developed Docker images to support Development and Testing Teams and their pipelines and distributed Jenkins, JMeter images, and Elastic search, Logstash, and Kibana (ELK).
• Configured Kubernetes Replication controllers to allow multiple pods such as Jenkins master server in multiple minions.
• Built and managed a large deployment of Red Hat Linux instances systems with Ansible, Terraform Automation and provision virtual servers using vagrant and kitchen in Oracle VM virtual box, provisioned servers in Amazon EC2.
• Provisioned the highly available EC2 instances using Terraform and Cloud Formation templates, wrote new plugins to support new functionality in Terraform and involved in using Terraform migrate legacy and monolithic systems to Amazon Web Services.
• Management of deviations regarding Continuous Integration, identifying improvements to enhance CI/CD.
• Used Ansible as a configuration management tool to deploy consistent infrastructure code across multiple environments and Wrote playbooks for automating the infrastructure for test and production.
• Worked on integrating application logs with Splunk and wrote several custom Splunk queries for monitoring and alerting.
• Designed and worked with team to implement ELK (Elastic search, Log stash and Kibana) Stack on AWS.
• Integrate automated build with Deployment Pipeline to pick up the Build from Jenkins repository and deployed in target environments (Integration, QA, and Production).
• Extensive worked on MAVEN as build tool for the building of deployable artifacts (jar, war & ear) from source code.
• Setting up the build and deployment automation for Java base project by using JENKINS and Maven.
• Implemented Continuous Delivery pipeline with GIT Hub, Jenkins, Docker and AWS AMI's (Linux), whenever a new GIT Hub branch gets created Jenkins attempts to build a new Docker container from it, the Docker container has the AMI baked in and leverages Linux containers.
• Implementation of a Continuous Delivery CD framework using Jenkins, Ansible, and Maven in Linux environment.
• Installed configured Managed Monitoring tools, such as Nagios for Resource Monitoring/Network Monitoring/log Trace Monitoring.
• Created Inventory for automation in Ansible and wrote Playbooks with Python SSH wrapper to manage configurations of AWS nodes and test Playbooks on AWS instances using Python.
• The Docker container leverages Linux containers and has the AMI baked in. Converted our staging and Production environment from a handful AMI's to a single bare metal host running Docker.
• Implemented Blue/Green Deployments with AWS Code Deploy where new version of application is tested in deployment other than in-place deployment and then traffic is diverted into the latest deployment.
• Designed, wrote and maintained systems (Python) for administering GIT, by using Jenkins as a full cycle continuous delivery tool involving package creation, distribution and deployment onto tomcat application servers via shell scripts embedded into Jenkins jobs.
• Performed daily administration of RedHat Satellite servers to prevent outage and plans for optimized system resource utilization.
• Involved in setting up JIRA as defect tracking system and configured various workflows, customizations and plugins for the JIRA bug/issue tracker.
• Responsible for upgrades to Red Hat Linux with Software packages, patches and maintained them in accordance with established PCI policies, procedures and service level agreements.
• Working on variety of Unix platforms RHEL 5.x/6.x/7, Solaris 10/11 which includes installation, configuring and maintenance of applications for prod/stage/dev environments.
• Configuration and administration of LDAP, NFS in Linux and implemented Samba for sharing of resources between Linux environments.
• Created setup of full networking services and protocols including NIS/NFS, DNS, SSH, DHCP, TCP/IP to insure optimal networking application.
• Deployments and involved in working for a high scalability and high availability environment running Linux and Windows.

Environment: AWS, OpenStack, Ansible, ANT, MAVEN, Jenkins, Bamboo, RedHat Satellite Server, Splunk, Confluence, Bitbucket, GIT, JIRA, Python, SSH, Shell Scripting, Docker, JSON, JAVA/J2EE, Kubernetes, Solaris, Nagios, Red Hat Enterprise Linux, Terraform, Kibana.

Confidential, Los Angeles, CA

DevOps/Cloud Engineer

Responsibilities:

• Worked as DevOps engineer/Build and release engineer in field of release automation for java application to achieve continuous integration (CI) and continuous delivery (CD).
• Review/Merge/Remove Git Pull Requests to Bitbucket. Hands on with GitAdd/ GitHub for code version control using Branching, Tagging, Release Activities.
• Configuration of various plug-ins for Jenkins for automation of the workflow. Configuration and maintenance of Jenkins to implement the CI process and integrated the tool with Maven to schedule the builds.
• Implementation of Ansible to deploy the builds for Dev, QA, and production. Installation of Ansible Tower on premise and on AWS nodes and automated the infrastructure using Ansible playbooks.
• Responsible for the Continuous Delivery pipeline given to all application teams as they on-board to Jenkins as a part of migration team.
• Written Chef Cookbooks for various DB configurations to modularize and optimize product configuration, converting production support scripts to Chef Recipes and AWS server provisioning using Chef Recipes.
• Involved installing and managing different automation and monitoring tools on Red Hat Linux like Nagios and Chef.
• Managed, configured servers to automate tasks and deploy apps on Virtual Machines, Bare-Metal and Cloud Instances using Foreman along with Chef.
• Maintenance and development of infrastructure using Ansible, Jenkins, and multiple AWS tools.
• Worked with Nexus repository manager to proxy, collect, and manage the dependencies on the collection of JARs.
• Excellent hands on experience in installation, configuration and troubleshooting the issues and performance tuning of WebLogic, Apache and Tomcat.
• Deployed JAVA/J2EE applications through Tomcat Application servers.
• Established Chef Best practices approaches to system deployment with tools with vagrant and managing Chef Cookbook as a unit of software deployment and independently version controlled.
• Worked on Open source development tools like Docker Containers and installation of Docker using YUM, RPM package management service and used Docker Swarm to manage Docker clusters using swarm manager.
• Managed Instances on the Amazon Web Services (AWS) platform using Ansible Configuration management and Terraform, CFT (Cloud Formation Templates).
• Experienced in Setting up Chef Server/Workstation and Bootstrapping Nodes. Wrote Wrapper cookbooks, recipes and utilized community cookbooks as well.
• Migrated frequently unused data from EC2 and S3 to Glaciers depending on life cycle management policy of organizations and implemented server less concepts in cloud like Lambda for application build.
• Migrated the VMWARE VMs to AWS using AWS CLI by uploading data to S3 and EC2-import-image and created a disaster recovery repo for VM’s in AWS using EBS. Managed Services like EC2, S3 Bucket, Route, ELB, EBS.
• Participated in the building of tools and processes to support the infrastructure performance and capacity.
• Experienced in deployment of applications on Application Servers such as Tomcat, JBoss. Installed and configured them as needed.
• Implemented Python scripts for active monitoring of applications and to raise automated tickets. Monitoring system performances using Nagios and managing network issues.
• Administrated DHCP, DNS, and NFS services in Linux. Created and maintained user's accounts, profiles, security, rights disk space and process monitoring.
• Provided technical support by troubleshooting Day-to-Day issues with various Servers on different platforms.

Environment: Git, Jenkins, Ansible, Chef, Ant, Red Hat 6.x/7.x, VMware ESXi, CentOS 6.x/7.x, Python, Ruby, Maven, Amazon Web Services (AWS), Docker, WebLogic Server, Artifactory, Ubuntu, SVN, UNIX, Nagios, Shell Scripts, ServiceNow, JBoss, Tomcat.

Confidential

Build & Release Engineer

Responsibilities:

• Implemented a Continuous Integration and Continuous Delivery (CI/CD) pipeline with Jenkins and GitHub.
• Configured and maintained Jenkins to implement the CI process and integrated the tool with ANT and Apache Maven to schedule the builds. Took the sole responsibility to maintain the CI server.
• Performed 24/7 assistance and on call deployments of application codes to production environments.
• Worked in all areas of Jenkins setting up CI for new branches, build automation, plug-in management and securing Jenkins and setting up master.
• Automated the bundling process and reduced all the manual intervention needed and merged that to the Jenkins job.
• Installed and configured configuration tool such as Puppet to create PFS (package, file, service) using puppet master in puppet nodes by using modules.
• Integrated Puppet with Foreman for complete lifecycle management of both physical and Virtual servers.
• Worked on MAVEN as a build tools on java projects for the development of build artifacts on the source code and Maintained build related scripts developed in shell for Maven builds, Created and modified build configuration files including POM.xml
• Used Puppet for Configuration management spanning several environments and Created Puppet manifests to provision Apache Web servers, Tomcat servers, Nginx and other applications.
• Used Puppet to setup Continuous Delivery pipeline. This primarily consists of a Bamboo, Sonar server and Vagrant the infrastructure to run these packages and various supporting software components such as Maven etc.
• Developed Ant and Maven scripts to automate the compilation, deployment and testing of Web and J2EE applications.
• Resizing volumes to meet customer requirement, dealing with logical Volume Manager (LVM) performance issues.
• Implemented Kickstart/PXE Boot Servers that Rsync between multiple locations.
• Managed Maven project dependencies by creating parent-child relationships between projects.
• Worked on setting up the new repos, managing the permissions for various GIT branches.
• Integration of Puppet with Apache and developed load testing and monitoring suites in Python.
• Involved in setting up JIRA as defect tracking system and configured various workflows, Customizations and plugins for the JIRA bug/issue tracker Expertise in deployment of Routers, Switches, Hubs, Firewalls, IDS, load balancers, VPN Concentrators.
• Troubleshooting, Security, Backup, Disaster Recovery, Performance Monitoring on Red Hat Linux Systems.

Environment: Chef, Ruby, Puppet, IAC, TDD, Red Hat Enterprise Linux, Jenkins, SVN, Nagios, ANT, MAVEN, Nginx, JAVA, J2EE, MySQL, Oracle WebLogic, LDAP, ACL, NIS, DNS, DHCP, FTP.

Confidential

Linux Admin

Responsibilities:

• Installation, configuration and troubleshooting of Red Hat 4.x, 5.x, Ubuntu 10.x on various hardware platforms.
• Managed AIX server's backups, restores and general system administration.
• Handled user and client security and access on AIX and Linux servers for remote access.
• Maintained multiple Oracle databases with an Apache/Tomcat web front end.
• Install and configure RHEL 4.x and 5.x on virtual machines as well as physical server.
• Configured Kick-start for RHEL (4, and 5), Jumpstart for Solaris and NIM for AIX to perform image installation through network.
• Installation and Administration of Red Hat Enterprise Linux 4/5 using Kick start including performance monitoring, scaling and capacity planning and hardware maintenance of Sun fire servers.
• Configuring NFS, NIS, DNS, Auto Mount & Disk Space Management on SUN Servers.
• Experience in Configuring and Managing Virtual Disks, Disk Mirrors & RAID Levels.
• Configuring and maintaining network services such as LDAP, DNS, NIS, NFS, Web, Mail, and FTP.
• Monitor standard IP services, network traffic and server health. Utilizing standard UNIX utilities and custom BASH scripts for automating event driven actions and responses.
• Installation, Configuration and Maintenance of Samba, Apache Tomcat, Web Sphere servers in Sun Solaris and Linux environment.
• Written different bash shell scripts, as per the needs for monitoring, automation of installs and configurations for different Linux environments. Worked on Shell scripts for automation of daily tasks and created cron jobs & at jobs.
• Managed Network troubleshooting applications TCP/IP including Ethernet, IP addressing & Sub netting, routing.
• Supporting Veritas NetBackup 4.5 environment by working in co-ordination with the backup team to install NetBackup clients and troubleshooting any issues with backups.
• Worked on creating user accounts, user administration, local and global groups on Solaris platform.
• Installation and configuration of Veritas Storage Foundation Suite, Volume Manager, Cluster Servers &Veritas File systems (Vxfs).
• Shell scripting to automate the regular tasks like removing temp files, taking backups of files, file transfers among servers.
• Developed shell scripts for installation of patches in various servers and generating the information about various Linux servers using shell scripts.
• Collaborated with backup team to maintain and recover enterprise wide backup servers using VERITAS Net Backup.
• Troubleshooting the network issues and response problems using ping, netstat, telnet utilities.
• Created User Accounts and Network Shares. Configured SUN Workstations as Domain Clients.
• Administrated NFS, NIS, DHCP and DNS Samba services running on AIX, Sun Solaris and Red Hat Linux.
• Worked with Storage team to configure SAN and NAS configuration.
• Responsible for installation and upgrade of patches and packages on RHEL 4/5 using RPM & YUM.

Environment: Linux-RHEL 4.x, Solaris 10, UNIX, Veritas, Shell (bash), Apache Tomcat Application Server, DNS, DHCP, LDAP, Apache Tomcat, NFS, RPM, YUM, and RAID.

Confidential

System Administrator

Responsibilities:

• Installing, tuning, troubleshooting and patching of Red Hat Enterprise Linux servers.
• Monitoring server performance and troubleshooting server related problems to SNMP.
• Handling the day-to-day Operations, Install software, apply patches, manage file systems, monitoring performance and troubleshoot alerts, Solve Server Problems in LINUX.
• Installation, integration and management of data backup/recovery solutions. Management and configuration of VMware virtual machines running Oracle/Sun Solaris X86/64, Red Hat Enterprise Linux and Oracle Linux server.
• Performed server updates, patching, upgrade and package installations using RPM and YUM.
• Managed patches configuration, version control, service pack and reviews connectivity issues regarding security problems.
• Configured volume groups, and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands.
• Managing systems routine backup, scheduling jobs like disabling and enabling cronjobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Jumpstart & Kick-start OS integration, DNS, DHCP, SMTP, Samba, NFS, FTP, SSH, LDAP integration.
• Performed daily system administration tasks like managing system resources, writing scripts, LVM management and end users support, manage operations and security issues.
• Monitored servers, switches, ports etc with Nagios monitoring tool. Made changes to the configuration files on client servers and host server.
• Troubleshooting of day-to-day operational problems, client-side issues, and hardware problems in the systems.

Environment: Red Hat Linux 6.x, OEL 6.x, Nagios, Solaris 10, Squid, DNS, FTP, DHCP, VNC, LVM, SSH.