Purnachandrao Kakkera

Experience

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  Computech

  Jan 2005 - Apr 2007

  Server Support Specialist

  Responsibilities: • Here tasks are assigned to me through Issue Tracking System Request, and we need to complete the same within the specified SLAs in the Request. • Developers and Application Owners contact us for any issues and problem faced in applications, webservers, and application servers for which we troubleshoot and resolve them.Projects Undertaken• Deployment of Scripts to automate code pushing from different environments.• Automating various administrative tasks (Bouncing JVMs, rotating logs, etc) through Scripts,• Reduced outages by monitoring, taking proactive steps & taking lesser time to resolve issues. Show less

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  Infosys

  Apr 2007 - Apr 2008

  Consultant(Websphere Admin)

  • Handing applications on different OS platforms like Linux, Unix (Sun Solaris) and Windows.• Handling and Managing applications on WebSphere, WebLogic and JBOSS and also ASP applications.• Handling different Webservers like IBM HTTP Server, Apache, and IIS.• Troubleshooting and debugging errors and problems for all applications by going through the JVM logs and Application logs and handling system performance and application performances.• Also deploying different applications through Open Deployment Tools and synchronizing them.• Good knowledge of Deployment Manager, WebSphere clusters.• Installing Big Brother clients and configuring them for each application so that the same can be monitored.• Have a very good knowledge of databases like Oracle on different areas like SQL queries and Database Administration like installing Oracle Database, Backup and Recovery and many more.• Worked for client side named DaimlerChrysler as Senior WebSphere Admin in the department called E-APPLICATION team and handling around 50 applications under a project called AFTER SALES. Show less

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  Charter Communications

  May 2008 - Jun 2017

  Product Solutions Manager /Middleware Architect

  • Worked as a Middleware Administrator in the Enterprise Application Admin Team. Handling 100+ applications like SOM, Phantom, SOA, EGW, ELI, Tidal & BAU Support. • Playing key role in designing the Infrastructure in Cloud and on-premises according to Application and Business requirements.• Design and implement DevOps pipelines, Continuous Integration and Continuous Delivery processes using Jenkins.• Implemented resiliencies for all hosted applications which enables zero downtime deployments using docker, rancher and Jenkins.• Designed and Implemented deployments using “Crash-only and recovery-oriented software design “• Handing applications on different Unix platforms like Linux, Sun Solaris, AIX• Strong experience in IBM WebSphere Application Server ND and XD administration.• Good knowledge of Administration of WebSphere MQ & SiteMinder.• Implemented Active /Active Gem fire Cache Server setup with datacenter Affinity to keep API response time within SLA.• Expertise on IBM Http Server, Apache, IIS, Sun One/iPlanet web server’s administration.• Strong working experience on several platforms like IBM AIX, Sun Solaris, Linux• Good hands-on experience with Wily Intrascope & site scope performance monitoring/alert tools.• Working experience with different ticketing/change/incident management tools.• Worked for very big Middleware Operations teams spread across globe.• Provided support for production and 24X7 environments.• Very good experience with clustered and enterprise on production environments.• Handling and Managing applications on WAS, Portal.• Troubleshooting and debugging errors and problems for all applications by going through the JVM logs and Application logs and handling system performance and application performances.• Good knowledge of Deployment Manager, WebSphere clusters.• Expert in installation and configuration WebLogic domains and clusters and SSL certificates Show less

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  Capital Group

  Jul 2017 - Apr 2019

  Team Lead/Middleware and Dev ops Engineer

  • Digital Operations supports all digital applications and hosting offering for Capital Group.• Responsible for Administration and Configuration of WebSphere, Tomcat, AEM.• Provided operational support for WebSphere Application Server, IBM HTTP Server and AEM• Supported all AEM Admin tasks such as installing packages, troubleshooting with cache, Queue Stuck,• Replication and Scene 7 Issues• Monitoring and troubleshooting the schedule batch jobs• Worked with Remedy and ServiceNow tools for Incidents management.• Worked and Supported on all Admin tasks during WCM Releases.• Worked as a Release co Ordinator between Enterprise Release team and development teams to schedule Stageand Production deployments using XL Deploy and XL Release.• Configuring, Automating and Deploying Ansible for configuration management to existing Infrastructure.• Facilitated, Coordinated, and resolved Major Incidents (MIM) with different teams. Interpreted log files to locate and solve problems using Tracing and Debugging facilities.• Work closely with Development, Applications Support, QA team, Release management team. and DBA teams• to resolve all outstanding issues• Coordinate and have daily calls with offshore team to assign and resolve the Incidents.• Worked with development teams and different vendors to improve production applications performance.• Worked with AppDynamics, Dynatrace Tools. mPulse, Rigor Monitoring tools to instrument Production• Digital Applications.• Worked with Akamai CDN on Digital Applications cache issues.• Experienced in configuring and maintain the SSL (HTTPS) sites by using third party and self-signed SSL cert.• on various application Servers.• Provided 24x7 on call support during weekends and nonbusiness hours Show less

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  Smart ERP Solutions Inc.

  Apr 2019 - now

  Product Solutions Manager and AWS & kubernetes Administrator

  • Provision, configure, and maintain AWS cloud resources such as EC2 instances, EFS, EBS, VPCS,Route53, RDS, Cloudwatch and ECS/EKS containerization services.• Configured site-stie vpn between On-premises and AWS/OCI.• Configured VPN peering as part of authentication during the provision of AWS VDI solutions.• Create S3 buckets and also managing the policies for S3 bucket.• Investigate and troubleshoot issues related to AWS services, network, and infrastructure. Provide timely resolution and root cause analysis.• Working on decommissioning the resources as per the process• Maintain documentation for cloud services that are being used.• Migrated legacy middleware applications(Tomcat,WAS,weblogic) into micro services using containers.• Responsible for implementation of Tagging and cost optimization in AWS and OCI• Experience in managing and maintaining IAM policies for organizations in AWS to define groups, create users, assign roles and define rules for role-based access to AWS resources. • Create snapshots and Amazon machine images(AMI) of the instances for backup and creating clone instances.• Use AWS CloudTrail for compliance audits by recording and storing event logs for actions made within AWS accounts. Evaluate new cloud solutions based on the business needs and standards.• Research and provide feedback on new AWS services and solutions.• Involving day to day application Support and Level 2/3 production support.• Configure and automate applications in AWS.• Establish configuration, compliance, and audit program to effectively manage AWS accounts and resources.• Designed and implemented highly scalable and available Kubernetes cluster on AWS resulting in 50 % reduction in deployment time. • Good Experience with kubectl deployments/Administration and monitoring the PODS/containers and troubleshooting the day-to-day issues.• Experience on configmaps,replication controllers,Replicationset,Demonset.• Experience in upgrading the Kubernetes. Show less