SUMMARY:

DevOps Engineer with over 10 years of experience in Linux/UNIX system administration seeking an opportunity to utilize skills in a professional capacity, employing comprehensive knowledge and professional experience with a proven record of motivated self - starter and teamwork skills, with abilities to multitask, meet deadlines and achieve desired results.

TECHNICAL SKILLS:

Operating System: Server 2003/2008/2012, Mac OS, VMware ESX, ESXi, Linux (RedHat, CentOS, Fedora etc.)

Application/Software: Apache, AWS, Jenkins, Puppet, Puppetlab, Ansible, Docker, ZooKeeper, Git, Gitolite, Gitlab, Tomcat,Jboss, Netback up, SSH, MobaXterm, Nagios, WinSCP, FileZilla, NFS, Sudo, VMware, Linux, UNIX, Squid, DNS, DHCP, Kickstart, LAMP server, and Remote Desktop. Proficient in loading/configuring/upgrading/managing Windows 95, Windows 98, Windows 2000 Professional, Windows XP Home, Windows XP Professional, and MS Office 2000, 2003, and 2007

PROFESSIONAL EXPERIENCE:

Confidential

Sr System Administrator

Responsibilities:

• Resolving Puppet issues for the environment (Redhat & Windows)
• Writing/Modification of puppet manifests
• Management of configuration files, services, packages using puppet
• Git repository management for continuous integration and delivery
• R10k for code management to manage our environment configurations in our source control repository (Git)
• Moving from Puppet 3 to Puppet 4
• Developing Puppet modules using Puppet 4
• Hiera to work with PuppetMaster as a value lookup tool for configuration data
• Exposure to Iaas (AWS)
• Using Vagrant and Bunsen to manage, configure and provisioning
• Using Cloudtrail to track user activity through AWS API calls
• Using CloudWatch to monitor Web applications running on AWS
• Set up and manage developers work flow from development, test to production using Jenkins and Git for a continuous Integration (CI) method
• Migration to AWS, setup and configuration of VPC, security groups, launching instances, databases and configuration of storage in AWS using EC2, RDS, S3, glacier and Route 53
• Configuration of Elastic Load Balancer for EC2 instances in AWS
• Using CloudFormation in provisioning AWS infrastructure deployments
• Configured Ansible to manage AWS environments and automate application deployments.
• Performed configuration and system management using Ansible.
• Built Playbooks and Roles to perform zero downtime rolling software deployment across clusters of web nodes.
• Performing file system security on Red Hat Linux Servers
• Performing in an Agile-based Continuous Integration environments
• Performing patch administration.
• Performing log administration to detect system errors
• Installing and managing Kafka with ZooKeeper
• Integrated Apache Kafka for data ingestion
• Managing Couchbase
• Implemented Docker containers for isolating the execution of customer code
• Install, upgrade and manages packages via RPM and YUM package management
• More than 5years experience using python, bash and ruby as a scripting language
• Responsible for the deployment of Vista Js in Veterans Affairs (VA) Datacenters.
• Performing Patching for Vista Js
• Troubleshooting of Federator & Vista services in VA sites

Confidential

DevOps/Puppet Developer

Responsibilities:

• Resolving Puppet issues for the environment (Redhat & Windows)
• Writing/Modification of puppet manifests
• Management of configuration files, services, packages using puppet
• Git repository management for continuous integration and delivery
• R10k for code management to manage our environment configurations in our source control repository (Git)
• Using puppet for automation of application such as Tomcat, Apache, Forge rock Modules (Openam, Openidm, Opendj) etc
• Moving from Puppet 3 to Puppet 4
• Developing Puppet modules using Puppet 4
• Configured all epc cache and gateway modules using epcTag function to add OPIDs.
• Hiera to work with PuppetMaster as a value lookup tool for configuration data
• Exposure to Iaas (AWS)
• Using Vagrant and Bunsen to manage, configure and provisioning

Confidential, Chantilly, Virginia

DevOps/Puppet Engineer

Responsibilities:

• Groundup setup and support of Opensource Puppetlabs architecture
• Writing/Modification of puppet manifest (Manually/forge)
• Management of configuration files, services, packages using puppet
• Git repository management for continuous integration and delivery
• R10k setup for code management to manage our environment configurations in our source control repository (Git)
• Using puppet for automation of application such as Tomcat, Apache, Weblogic & OEM client
• 100 percent automation in AWS by using ec2tags for puppet agents in installing puppet modules
• Configuration of Hiera to work with PuppetMaster as a value lookup tool for configuration data
• Exposure to Iaas (AWS)
• Using Multi-Factor Authentication (MFA) in AWS
• Configuration of VPC, security groups, launching instances, databases and configuration of storage in AWS using EC2, S3, Route 53
• Configuration of Route 53 for high availability cloud DNS
• Using Cloudtrail to track user activity through AWS API calls
• Using CloudWatch to monitor Web applications running on AWS

Confidential, Greenbelt, Maryland

DevOps/Linux System Engineer

Responsibilities:

• Groundup setup and support of Puppetlabs enterprise architecture
• Writing/Modification of puppet manifest (Manually/forge)
• Management of configuration files, services, packages using puppet
• Set up and manage developers work flow from development, test to production using Jenkins and Git for a continuous Integration (CI) method.
• Setup and management of Git/Gitolite/Gitlab for repository management and good understanding of Git workflow.
• Exposure to PaaS (openshift and Elastic Beanstalk)
• Exposure to Iaas (Openstack & AWS)
• Migration to AWS, setup and configuration of VPC, security groups, launching instances, databases and configuration of storage in AWS using EC2, RDS, S3, glacier and Route 53
• Configuration of Elastic Load Balancer for EC2 instances in AWS
• Configured Ansible to manage AWS environments and automate application deployments.
• Performed configuration and system management using Ansible.
• Built Playbooks and Roles to perform zero downtime rolling software deployment across clusters of web nodes.
• Planning and Designing VMware VI3/vSphere (ESX3.5/ESXi 4.0/ESXi 4.1 and VMware VirtualCenter)
• Performing file system security on Red Hat Linux Servers
• Performing in an Agile-based Continuous Integration environments
• Performing patch administration.
• Performing log administration to detect system errors
• Perform TCP/IP and Network configuration on the servers.
• Customize user environment for users.
• Creating and/or maintaining file systems.
• Performing file system migrations
• Provide support for both physical and virtual environments
• Respond to all Linux systems problems and resolving them on a timely basis.
• Manage systems routine scheduling jobs and enabling cron jobs.
• Reset password and unlock locked user account
• Monitor CPU and hard disk temperature
• Configure and perform TCP/IP trouble shooting on servers
• Monitor system logs and activity on all servers
• Implement password aging on Red Hat and Centos servers
• Manage Red Hat Storage using Linux logical Volume Manager
• Install, upgrade and manages packages via RPM and YUM package management
• Apache HTTP administration
• Storage Area Network Management
• Monitor system hardware and software performance
• Provided on call support by rotation 24x7x365
• Installation, setup and configuration of RHEL and Centos
• Run, maintain, setup schedule work (Cron), protect and rescue file systems
• User Account Management with NIS/LDAP
• Extensively worked on administering and configuring DNS and LDAP services
• Creating, and administering Logical Volumes and mounting them
• Setup of NFS and Samba file sharing services on Linux and Windows environments
• Install Firmware Upgrades, kernel patches, systems configuration, performance tuning
• Monitor System Performance (Virtual memory, Disk and CPU utilization)
• Install, configure and support of Apache on Linux production servers.

Confidential, Essex, Maryland

System Administrator

Responsibilities:

• Coordinates testing, upgrades and configuration of system files and services. Ensures changes are in accordance with appropriate operating procedures; recommends revisions or changes based upon results. Prepares for and prescribes approaches to possible downstream implications.
• Utilizes standard corporate tools to record change and problem activities for tracking purposes.
• Provide and supervise set-up, configure, and load system software and hardware architecture, design, install, configure VMware ESX, ESXi, within vSphere 4 and vSphere 5 environments with VirtualCenter management
• Provide system administration support of computers, servers, racks of equipment and figure/manage LAN interfaces
• Provide support for web development, testing, system integration, installation scripts and other duties to support systems and network infrastructure
• Analyze system logs and identify potential issues with computer systems
• Created and deleted user accounts enforce security and compliance rules to regarding passwords and access to computer systems.
• Introduce and integrate new technologies into existing production environments
• Perform routine audits of systems and software
• Perform backups and backup maintenance checking
• Tune system performance ensuring that the system connected network infrastructure is up and running
• Conduct software runtime analysis, debugging, and security testing techniques
• Provide support for implementation, troubleshooting and maintenance of IT systems
• Manage the daily activities of configuration and operation of IT systems
• Provide End to End Linux Administration including installation, configuration, upgrades, and maintenance and troubleshooting of Linux systems.
• Day-to-day, hands on work building, patching, and maintaining Linux systems in a highly virtualized (VMware) environment.
• Build automation into daily processes, including server builds, patching, and configuration analysis
• Perform User Management, File System Management, Performance Monitoring (Storage Capacity), Log Files Management and Security Management
• Backup Administration duties include: monitoring backups across a variety of technologies, implementing new backup policies, restore of data, and remediation of backup issues
• Provide thorough Documentation of the various issues handled along with the resolution provided

Confidential, Baltimore, Maryland

System Administrator

Responsibilities:

• Utilizes standard corporate tools to record change and problem activities for tracking purposes.
• Installation and configuration of ESX server
• System software and hardware installation and Linux operational tasks.
• Provide system administration support of computers, servers, racks of equipment and figure/manage LAN interfaces
• Analyze system logs and identify potential issues with computer systems
• Created and deleted user accounts enforce security and compliance rules to regarding passwords and access to computer systems.
• User Account Management with NIS/LDAP
• Perform routine audits of systems and software
• Perform backups and backup maintenance checking
• Provide support for implementation, troubleshooting and maintenance of IT systems
• Manage the daily activities of configuration and operation of IT systems
• Provide End to End Linux Administration including installation, configuration, upgrades, and maintenance and troubleshooting of Linux systems.
• Day-to-day, hands on work building, patching, and maintaining Linux systems in a highly virtualized (VMware) environment.
• Provide thorough Documentation of the various issues handled along with the resolution provided