Experience

Aviture

• United States
• IT System Custom Software Development
• 1 - 100 Employee

• DevOps manager

  • Nov 2014 - Present

  DevOps Engineer with Technical expertise in the areas of Build/Release/Deployment management with over 4 years with emphasis on designing, Implementing, and managing Continuous Integration build systems for Financials and Networking companies. Responsible for Planning, building, deploying and releasing high quality products to end customers as well as respond quickly to changing applications requirements. This are also my responsibilities not the only ones: • Deployed and configured Chef Server and Chef Solo including bootstrapping of chef client nodes for provisioning; Created roles, cookbooks, recipes, and data bags for server configuration, deployment, and app stack build outs. • Maintained the user accounts (IAM), RDS, Route 53, VPC, RDB, Dynamo DB, SES, SQS and SNS services in AWS cloud. • Implemented zero downtime deployment process in WebLogic using python and shell script and automated it using Jenkins. • Triggering the SIT environment build of client remotely through Jenkins. • Deployed and configured Git repositories with branching, forks, tagging, and notifications. Highly efficient in understanding the requirements of the clients and providing them the best output. Good team leader not a commander. Show less



Hitachi Pentaho+

• United States
• Software Development
• 1 - 100 Employee

• DevOps manager

  • Aug 2013 - Sep 2014

  Project Description: Data integration and handling large volumes of diverse data by using AWS Cloud Based Hadoop Solutions like Amazon Elastic Map Reduce (EMR) & Amazon RedShift. Responsibilities: • Played a role in Migration of Existing Application to AWS cloud. • Worked in EC2, S3, ELB, AutoScaling Servers, Glacier, Storage Lifecycle rules, Amazon EMR, Elastic Beanstalk, Cloud Formation, AWS Direct Connect, Cloud Front, RDS, VPC, Route 53, Cloudwatch, IAM & Roles, SNS subscription service, Amazon Redshift. • Worked at optimizing volumes and EC2 instances and created multiple VPC's. • Utilize Amazon Glacier for archiving data. • Experience with Docker. • Hands on Experience with automation deployment framework like uDeploy. • Automated Regular AWS tasks like snapshots creation using python scripts. • Management of continuous integration servers using AnthillPro. • Monitoring AWS Instances regularly using ops view and New Relic tools. • Automated using Chef, Puppet, Ansible, and Jenkins • Automated deployment using Chef-solo and setup auto-scaling EC2 instances in multiple availability zones. • Used NginX to serve the static content. • Experienced in designing VPCs to isolate databases by configuring private subnets, NAT instances, bastion servers in public subnets and password-less SSH inside subnets ( Securely Connecting to the Linux instances running inside a private VPC ). • Used Amazon RDS Multi-AZ for automatic failover and high availability at the database tier for heavy MySQL workloads. • Configured S3 versioning and life-cycle policies to backup files and archive files to Glacier. Show less



CDPHP

• United States
• Insurance
• 700 & Above Employee

• Architect

  • Mar 2011 - Jul 2013

  ➢ Design, architect, orchestrating DevOps to worker bees across multiple environment and 100 + applications. ➢ Implemented seamless rapid infrastructure provisioning and configuration automation (Chef, Vagrant and Terraform). ➢ Worked on wide range platforms (Oracle, Microsoft, Storage, Networking, Data Center & Open Source) ➢ Create AWS solution architecture for hosting dev, test/staging and production workloads. Map current on premise software to AWS IaaS and PaaS components where applicable, migrate applications from on premise data center to AWS infrastructure environment, create and implement testing plans post migration, implement changes to architecture (If any) to meet performance requirements, Setup DR and BCP on AWS to meet customer SLA's. Create VPC's and deploy servers, setup and deploy servers on multiple AWS zones, implement and run test scripts to test server migration success, architecting a Cloud platform, which calls for solid Cloud Infrastructure skills, leveraging Open Source for the Cloud Infrastructure Linux, Cassandra, MySQL, Docker etc. These projects are end to end life cycle projects that host critical production workloads for customers. Gathering application workload requirements for on premise applications and create an assessment to migrate them to AWS environment. ➢ Working with all the stakeholders and responsible for reporting out to C level executives and perform trend analysis within our complex environment. Implement the solutions on AWS and Azure cloud. Show less



Ingram Micro Commerce & Lifecycle Services

• United States
• Transportation, Logistics, Supply Chain and Storage
• 700 & Above Employee

• Senior Linux Administrator

  • Mar 2010 - Mar 2011

  • Linux / Windows administration dealing with large scale clusters running distributed seismic image processing software in a primarily Linux and Solaris network with NIS as the central management protocol. • Performed network capacity analysis to find bottlenecks and potential points of failure. Developed network and service topology maps to identify dependencies and trouble shoot network issues with minimal downtime. • Used the network and service topology maps to develop an emergency shutdown procedure for the data center to be triggered during HVAC or power failure. • Provided support for linux network integration with Windows corporate network. • Day-to-day administration tasks including keeping YP scripts current, making sure environment variables were up to date, monitoring server and desktop uptime with nagios and ganglia. • Implementing Active Directory authentication for CIFS file shares with samba and nfs to reduce network complexity. • Installation and version control of nVidia drivers for linux to drive high-end displays • Transitioning away from Solaris 8 in favor of Solaris 10 and working with development to be sure that the development tools did not break any old code. • Diagnosed a problem in the cluster that was causing random failure of the nodes, working with support from Appro and Tyan, we diagnosed that there was not enough capacitance in the CPU voltage regulation circuit to compensate for the high load. I assisted in the field upgrade of the 240 nodes affected. • Created a bash script to distribute rsync traffic during PXEboot to allow up to 60 nodes/hour to be re-imaged when new software was deployed. Show less



R1 RCM

• United States
• Hospitals and Health Care
• 700 & Above Employee

• Senior Linux System Administrator

  • May 2008 - Mar 2010

  Used Puppet to manage Web Applications, Configuration Files, Data Base, Packages. • Expertise in using Puppet Dashboard and Puppet DB for configuration management to existing infrastructure. • Involved in installing Puppet client on Red hat & Solaris servers for Automation purpose. • Ensuring availability of Puppet agents across Linux boxes in order to ensure configuration management application via Puppet Master. • Developed automation scripting in Python (core) using Puppet to deploy and manage Java applications across Linux servers. • Set up puppet master, client and wrote scripts to deploy applications on Dev, QA, production environment. • Provided installation & maintenance of Puppet infrastructure and developed Puppet recipe &modules for configuration management. • Performed Server configuration management via Puppet. Transparent Data Encryption (TDE) implementation. • Worked on version control tools like GIT and Perforce and integrated build process with Jenkins. • Configured and maintained Jenkins to implement the CI process and integrated the tool with Ant and Maven to schedule the builds. • Automate the builds and deployment of JAVA projects using ANT and Jenkins. Automated, designed and implemented continuous integration using GIT, Jenkins, puppet. • Implementing a Continuous Delivery framework using Jenkins, Maven in Linux environment. • Involved in Installing Jenkins on a Linux machine and created a master and slave configuration to implement multiple parallel builds through a build farm. • Defined dependencies and plugins in Maven pom.xml for various activities and integrated Maven with GIT to manage and deploy project related tags. • Integrated Maven with Shell scripts created in Bash to automate the deployments for the Java based applications. • Extensively used Ant, Maven, Perl and Bash Scripts for automating build and release tasks. Show less



Wipro

• India
• IT Services and IT Consulting
• 700 & Above Employee

• Linux System Administrator

  • Sep 2002 - Jun 2007

  Expertise in package management using Red Hat RPM. Used RPM in several Linux distributions such as Red Hat Enterprise Linux, SUSE Linux Enterprises and Fedora. • Configuring NFS, NIS, NIS+, DNS, Auto Mount & Disk Space Management on SUN Servers. • Experience in Configuring and Managing Virtual Disks, Disk Mirrors&RAID 0, 1 & 5 Level • Installation and configuration of VERITAS Volume Manager&VERITAS file system. • Installation, configuration and administration on VERITAS Cluster Server, Redhat Cluster Server. • Configured new service group & resources for new application in High Availability environment. • Installation and configuration of SolarisZONESCreated Zeta byte file systems (ZFS) in Solaris 10. • Extensive experience with working on Sun Volume Manager. Creating Meta devices, soft partitions, mirroring the devices and Metasets. • Space allocation to the Metadevices, detaching and clearing the devices if not in use. • Experience in Disaster Recovery and Planning. • Maintaining the CPU and Memory Utilization of SUN Servers reports on the WEB. • Installed and monitored VMwareVirtual environments with ESX 3.x, ESX i servers&Virtual Center 2.X. • SENDMAIL configurations and administrations, testing the mail servers. • Utilized DTrace in Solaris 10 for Performance Tuning of the Operating System and User Programmers. • Experience in adding and configuring devices like hard disks and backup devices etc. • Monitor daily Net Backup activity and reporting to proactively avoid issues. • Improve automation and productivity of backups through scripting enhancements. • Modify and Optimize backup schedules. • Created/maintained GFS (Global File System) in Linux environment. Supported Oracle RAC. • Performed automated installations of Operating systems using Jumpstart, Flash Archive for Solaris and ignite for HP-UX. Show less