Devops Engineer

Available immediately/ Can Relocate

References Available on Request

Profile

Over 8 years of experience in IT field as System Administration, specialization in Installation, Configuration and Administration of Red Hat Enterprise Linux, Sun Solaris, CentOS, and Windows.

Expertise working in a dynamic environment: Installing, Upgrading, Patching, Configuring and Performance Tuning on UNIX system software and hardware.

Highly skilled in automating Operating System installation and setup utilizing Jumpstart Servers for provisioning of Solaris 9/10 servers and Kickstart servers for provisioning of RHEL.

Proficient in installation and configuration of various Packages and Patches in Linux utilizing Red Hat Satellite Server.

Experienced in creating and managing different kinds of file systems like Ext 3, Ext 4, ZFS, VxFS and UFS.

Firm grasp of managing various filesystem using Logical Volume Manager (LVM), Veritas Volume Manager (VxVM), Veritas File System (VFS) and Solaris Volume Manager (SVM).

Experienced in managing and configuring Zones and Containers in Solaris 9/10 environment.

Efficient with User Administration, Management, Disk Space and Process Monitoring in a dynamic work environment.

Extensively used Veritas Cluster Server 4.x/5.x for High Availability Environment.

Working knowledge in installing, configuring, implementing and managing RAID 0, RAID 1 and RAID 5 technologies.

Working knowledge of network administration, deploying and troubleshooting of DNS, LDAP, NIS, NFS, DHCP, Samba and TCP/IP.

Hands on experience in IP multi pathing and NIC Bonding in Linux servers.

Expertise in system performance configuration and monitoring tools like Nagios and Splunk.

Experience in with Virtualization technologies like installing, configuring, VMware vSphere. Creation, management, administration and maintenance of virtual servers and clients.

Experience in shell scripting and python.

Experience in Networking configuration & Security Configuration on ESX Host.

Experience in salt stack and Docker.

Hands-on experience with configuration and automation tools such as Puppet, chef and Ansible.

Good Knowledge on windows active directory.

Experienced in installation and configuration of Apache Webserver, WebLogic, and Tomcat.

Firm grasp of Jenkins/Maven deployment and build management system.

Proficient in Amazon AWS components such as EC2 instances setup, Elastic LB and Elastic Storage.

Expertise in utilizing GIT and Subversion as Version Control System.

Excellent analytical, problem solving communication and interpersonal skills.

Quick learning capability, delivering solutions as an individual and a good team player.

Good understanding and exposure to Software Development Life Cycle.

EDUCATION and CERTFICATIONS :

–Bachelors in Technology with Major in Computer science

Experience/Project Work

DollarTree Inc - Virginia july 2015 – Present

DollarTree, Inc is a customer-oriented, value-driven variety store operating at a one dollar price point. We will operate profitably, empower our associates to share in its opportunities, rewards and successes; and deal with others in an honest and considerate way. The companies mission will be consistent with measured and profitable growth.

Role: DevOps / Linux Administrator

Responsibilities:

Working for DevOps Platform team responsible for specialization areas related to Puppet for Cloud Automation.

Excellent configuration management using Puppet.

Implemented Puppet modules to automate configuration of a broad range of services

Worked with Nagios x1 installation and configuration.

Worked with Nagios dashboard to monitor servers and monitor applications,

Actively involved in architecture of DevOps platform and cloud solutions.

Build Automation and Build Pipe Development using Jenkins and Maven

Integration of Automated Build with Deployment Pipeline. Currently installed Puppet Server and clients to pick up the Build from Jenkins repository and deploy in target environments (Integration, QA, and Production).

Implemented scheduled downtime for non-prod servers for optimizing AWS pricing.

Created proper documentation for new server setups and existing servers.

Maintaining a farm of EC2 instances, ELB’s and RDS.

Migrate on premise database to AWS Cloud and also designed, built, and deployed a multitude applications utilizing the AWS stack (Including EC2, R53, S3, RDS, SNS, and IAM), by focusing on high-availability, fault tolerance, and auto-scaling.

Configure EC2 Instances, VPC, Route 53, ELB, Subnets, etc.

Configure and administer Apache and Application layers

Configure HTTP caching properties for static caching.

Experience with shell scripting.

Worked on SIEM for security and audit compliance configuration

Worked on version control using GitHub.

Worked on automating builds using Jenkins.

Experience with AWS SDK and AWS API.

Automate infrastructure in AWS using amazon web services.

Installing and configuring Tomcat and JBOSS.

Deploy puppet to completely provision and manage AWS EC2 instances, volumes, DNS, and S3.

Performed installation, configuration and tuning of Red hat, CentOS, Solaris.

Environment: Red hat Linux,Solaris,CentOs,Puppet,Tomcat, Apache, Nagios, Jenkins, Maven, Git, AWS ELB, AWS S3, AWS Cloud Formation Templates,AWS RDS, AWS Cloud Watch.

Medco Health Solutions, Franklin Lakes, NJ August 2013 – JuneS 2015

Devops/ Unix Administrator

Responsibilities: -

Worked on migrating Solaris 10/ AIX 6.1 to redhat 6.

Worked on creating new LPARS on AIX IBM frame

Worked on Creating new EC2 instances on AWS (Amazon web services)

Worked on creating puppet manifests and modules.

Worked on creating build jobs using Jenkins.

Worked on Git as a source code repo for version control.

Provided Administrative support for 450 odd Linux/Solaris/AIX servers running Weblogic Suite applications, variety of business applications, and Ab-initio ETL.

Worked on windows 2003 and 2008 servers and installed OS on them.

Worked on creating Chef recepies.

Worked on configuring CFengine and Jenkins.

Performed Installation, configuration of RHEL 5, Solaris and AIX operating systems.

Performed live as well as manual OS upgrade from red hat 3, 4 to red hat 5 and 6.

Actively Involved in Building and configuring of red hat Linux and Solaris 9/10 servers remotely using Jump Start /Kick Start Servers.

Handled Content Management systems.

Analyzed the hardware and software requirements of Active Directory.

Installed, configured, and provide troubleshooting for Server 2003.

Migrated Windows Server 2003 from test environment to the production environment.

Implemented and managed IP Addressing; configured TCP/IP addressing on a server.

Created the Forest Root domain, and a Child domain in a production environment.

Installed and configured an Active Directory Domain Controller

Worked with Ruby scripting, Rails, Adobe Cq5.

Also worked with Angular JS to create java framework and java code for Jenkins deployment and node.js

Maintained a secure hosting environment with latest certified Prism-CMS software, security patches, and software updates and upgrades to database, and application tiers.

Troubleshooting OS / Hardware related issues and monitor server health on a day-to-day basis. Maintained maximum uptime and high performance for Enterprise Production, Development, and QA environment servers.

Worked on application server like Jboss and web server like Apache and Tomcat.

Monitored the systems CPU, memory, IDE/SCSI disks, disk controllers, RAID, RAID controllers, file systems, and network parameters using the tools NAGIOS system-monitoring tool and BMC performance management tools.

Allocate/manage disk quotas on Development servers for applications running on Linux.

Installed, configured, and maintained TCP/IP based services like NFS, NIS, NIS+, DNS, LDAP, Print servers, and SMPT. Also performed troubleshooting issues on these services.

Configured auto mounting setup on NFS clients.

Install/troubleshoot AUTOSYS to schedule application jobs.

Performed installation, configuring, tuning, and troubleshooting of Apache web server, Tomcat and WebSphere application servers.

Performed file system management and disk management using Veritas Volume Manager.

Worked with SAN team for Zoning of storage area for various applications. Configured servers for high availability through Dynamic MultiPathing using Veritas DMP.

Installed and configured Veritas NetBackup on client servers and performed periodical backups of server data files.

Actively involved in planning, configuring and administering High Availability and High Performance clusters using Veritas cluster server and Sun HPC software.

Providing Level 1 and Level 2 Support on various production systems.

Scheduling jobs through cron - frequent modification to crontab.

Fixing the failed and missed backups using (TSM).

Develop scripts to perform weekend checkouts after reboots occurring every weekend.

Prioritize and resolve critical issues and coordinate the escalated activities through ACTT Ticketing system.

Generated detailed documents and reports on issues and solutions for future reference.

Working with SOX Team in auditing of critical production functions and preparation of audit documents as per the audit specifications specified by Sarbanes-Oxley legislation.

Environment: Red hat Linux 3,4 and 5 ES 4.0/5.0,Hp Unix 5.1, Sun Solaris 9/10, AIX 5.1/5.3 Veritas Volume Manager, SAN, Samba, NFS, VMware ESX, Apache, Tomcat and Joboss Veritas Volume Manager 4.0, Veritas Cluster 4.x, Tivoli Storage management and Websphere servers, and SAN storage.

Deft Consulting services, May 2009 – Jul 2013

Hyderabad, India.

Linux System Administrator – Multiple Projects

Administration of RHEL 5/6 that includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues.

Worked on creating, cloning Linux virtual Machines, templates using VMware Virtual Client 3.5 and migrating servers between ESX hosts.

Installed and managed Red Hat Linux using Kickstart and applying security policies for hardening the server based on the company policies.

Administered package installation, configuration of CentOS 5/6.

Created disk groups, volume groups and RAIDs using Veritas Volume Manager.

Installed and configured MySQL on Linux Server for test and development environment.

RPM and YUM package installations, patch and other server management.

Created new file systems, monitoring disk usage, checking and backup of log files administration and monitoring the disk based file system.

Configured multipath, adding SAN and creating physical volumes, volume groups and logical volumes.

Installed and configured Apache and supporting them on Linux production servers.

Performed Kernel compilation and patch upgradation on Linux servers.

Worked on troubleshooting Linux network, security related issues, capturing packets using tools such as iptables, firewall, TCP wrappers and NMAP.

Developed automated processes that run daily to check disk usage and perform cleanup of file systems using shell scripting and Crontabs.

Hands on experience on creating and managing Users / Group accounts and setup a user's work environment.

Monitored the File System, CPU load for better Performance and system performance parameters using iostat, vmstat and prstat.

Monitored system performance, tune-up kernel parameter, adding/ removing/ administering hosts, users, disks on DNS / NIS domain.

Performed the configuration and administration of DNS, NFS, SAN, NIS and database files.

Involved on making DNS entries to establish connection from server to DB2 database.

Created VM snapshots for test and deployment as well as in production change controlled release environment.

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