KARUNAKAR GADDAPATI

AWS DevOps SRE Fusion Middleware – Consultant

Email: ad3hbb@r.postjobfree.com Mobile: +1-469-***-****

Location: Texas, United States LinkedIn: linkedin.com/in/karunakar-gaddapati

Summary:

Oracle certified WebLogic administrator and AWS certified professional with Over 12+ years of experience in fusion middleware technologies like WebLogic, SOA, OSB, EDQ, Oracle HTTP, OTD, Apache, Tomcat, Jenkins, Docker, Kubernetes and AWS services.

Expertise in developing customer satisfaction driven culture within IT Service Operations by automating daily operations tasks through various tools.

Playing a significant role in establishing operational process of applications from on-premises to AWS cloud platform

Experienced in provisioning AWS cloud-based environments.

Good hands-on knowledge of Configuration Management and Deployment tools such as Terraform and Ansible

Planning and executing business continuity testing, security assessment and infrastructure capabilities.

Expertise in developing and implementing CI/CD using Jenkins.

Good understanding of Service Level of Indicators (SLIs), Service Level Objectives (SLOs) and error budgets for Product offerings

Extensive hands-on experience in installation and configuration of middleware technologies like weblogic, fusion middleware products, tomcat and webservers.

Experience in designing and building middleware platforms to deploy J2EE applications.

Expertise in deploying java applications in webservers and application servers.

Experienced in fusion middleware technologies and performance tuning.

Experienced in oracle database.

Experienced in docker & Kubernetes.

Experienced in shell, python & ansible scripting.

Employment History:

Organization

Duration

Designation

Datanormus LLC

June 2023 – Till Date

Software Engineer

Denmac Solutions

April 2023 – June 2023

Software Engineer

OpenText Technologies

Apr 2022 – Mar 2023

Lead Cloud Application Engineer

Manhattan Associates

Aug 2020 – Apr 2022

Principal Systems Engineer

Oracle Financial Services

Dec 2014 – Aug 2020

Senior Consultant

Capgemini India Pvt Ltd

Jan 2013 – Dec 2014

Consultant

Wipro Technologies

Nov 2011 – Jan 2013

Senior Systems Engineer

Artech Infosystems Pvt Ltd

Feb 2011 – Nov 2011

Software Engineer

Certifications:

AWS Certified Solutions Architect – Associate

1Z0-133 - Oracle WebLogic Server 12c: Administration

Education Qualifications:

Bachelor’s in Electrical & Electronics Engineering in 2008 - Batchelor of Technology from Jawaharlal Nehru Technological University, Hyderabad, India.

Projects Summary:

1. Datanormus llc, USA April 2023 to Till Date

Project 1: Ulta Beauty Work Location: Texas, USA

Role : Software Engineer

Duration: June 2023 to Till date

Responsibilities / Deliverables:

Create multiple environments with middleware technologies and fine-tuned performance issues.

Install and configure weblogic application servers, HTTP web servers

Configure SSL certificates and troubleshoot SSL handshake issues.

Develop deployment scripts to reduce efforts in deploying multiple environments and multiple application releases.

Automate post deployment activities including custom changes and restarts.

Maintain the infrastructure and solutions on cloud and on-prem.

Analyze and Identify issues using monitoring systems like Splunk, Kibana & Grafana

Using JIRA & ServiceNow ticketing tool for tracking progress of the development activities and issues.

Configure Jenkins jobs for Building, Testing and Continuous Deployment.

Preform RHEL Linux upgrades and applied patches.

Work on docker images, containers, and Kubernetes environments.

Improve the performance of the Service Level of Indicators (SLIs), Service Level Objectives (SLOs) and error budgets for Product offerings

Good exposure in toil like Anomaly error detection and error budgeting.

Install WMOS production in different environments.

Deploy SDNs released by Manhattan.

Knowledge on WMOS product installation and configuration.

Involve in multiple stages of performance testing, identified and resolved issues in test phase.

Develop ansible script to maintain configuration changes across all the environments.

Working with docker environment, deploying services in docker swarm cluster.

2. Denmac Solutions LLC, USA April 2023 to May 2023

Project 1: American Airlines Work Location: Texas, USA

Role : Site Reliability Engineer

Duration: April 2023 to May 2023

Responsibilities / Deliverables:

Part of DevOps Engineer/SREs, and implemented process and strategies to improve infrastructure scalability, reliability, and security

Configured monitoring for observability of the environment and created alert policies to proactively monitor all environments to improve availability of the applications.

Created Dashboards in Splunk, Grafana and good exposure in Prometheus installation and configuration.

Involved in resolving Java code troubleshooting issues/fixes and updated Jira tickets which were reported by Support teams.

Troubleshooted various environments’ deployment and run time issues and documented resolutions for future reference.

Converted various components deployed manually in the past into infrastructure code to minimize technical debt.

Configured SSL certificates and troubleshoot SSL handshake issue.

Identified connectivity issues in network, database, and load balancing mechanism.

Written python scripts to manage resources to simplify administration.

3. OpenText, Hyderabad April 2022 to Mar 2023

Project 1: Alloy Lens & Fulcrum Lens (Product support, Global) Work Location: Hyderabad, IN

Role : Lead Cloud Application Engineer

Duration: April 2022 to March 2023

Responsibilities / Deliverables:

Supported critical OpenText B2B central applications which are used by multiple clients globally.

Deployed LENS applications in US and EU regions using Jenkins pipeline.

Upgraded applications and software periodically.

Preformed RHEL Linux upgrades and applied patches

Worked on docker images, containers, and Kubernetes environments.

Configured Jenkins jobs for Building, Testing and Continuous Deployment to accomplish the complete CI/CD

Configured and monitored infrastructure, application alerts in new Relic & Zabbix platform.

Deployed applications in Kubernetes clusters and maintained pods & applications.

Automated infrastructure and deployment activities

Created multiple environments with middleware technologies and fine-tuned performance issues.

Deployed java-based applications in webservers and application servers

Maintained the infrastructure and solutions on cloud and on-prem.

Supported global customers and handled critical issues.

Analyzed and Identified issues using monitoring systems, Kibana & Grafana

4. Manhattan Associates August 2020 – Apr 2022

Project : Nike, Inc. USA Work Location: Bangalore, IN

Role: Principal Systems Engineer

Duration: August 2020 to April 2022

Responsibilities / Deliverables:

The Scope of the project is, perform capacity planning, create new environments to host WMOS application, perform pre-go live audits and support.

Designed, configured, implemented, and managed a fully automated workflow for provisioning and maintaining a complex, highly available cloud environment using infrastructure as code.

Maintained a library of deployable and documented automation design scripts, process, and procedure for deploying services to the AWS cloud production systems.

Created and Managed Docker environments and container management system

Used terraform code for provisioning AWS environments.

Participated in cloud computing environment builds, software installation, maintenance, and support, including but not limited to, patches, fixes, end of life preparation and upgrades.

Created AWS services like Amazon EC2, S3, ELB, Auto Scaling, RDS, VPC, Amazon Cloud watch, ACM, EFS, ALB, SNS & IAM

Monitored applications using tools such as New Relic, AppDynamics, Logz.io

Used configuration management technology - Ansible to apply patches, update configurations and install software’s on the EC2 instances.

Assess and plan for capacity needs within cloud platform and forecast accordingly.

WebLogic application server Installation, Configuration, Application components deployment, performance tuning including troubleshooting and maintenance.

Automated NMON analysis, Garbage collection analysis using python to reduced efforts from weeks to hours.

Automated infrastructure audits to reduce manual efforts from days to hours.

Resolved performance issues by analyzing thread dump, JVM parameters, and heap dump.

Configured SSL certificates in application layer and load balancer layer.

Created and manage clusters, performance tuning, load balancing, connection pool, multi pool, JMS message Queue and Monitoring

Deployed java-based applications in webservers and application servers

Managed and participated in the implementation of production changes during defined maintenance windows and support on call rotation.

Served as a point of contact of escalation within the team for support issues.

5. Oracle Financial Services December 2014 – August 2020

Project 1: KeyBank, USA Work Location: Cleveland, USA & Bangalore, IN

Role: Senior Consultant

Duration: May 2018 to August 2020

Responsibilities / Deliverables:

The scope of the project is to create new environments and deploy Flexcube application and provide end to end support

Created VPC, NACL, EC2 services to deploy Flexcube application using terraform.

Configured NAT Instances and NAT gateways for the Internet traffic for secured network.

Created VPN solutions for AWS.

S3 bucket integration for web application and development projects

Configured storage management life cycle.

Configured predefined monitoring and baseline situations using cloud watch monitoring tools

Installed and federated active directory with AWS resources.

Generated utilization reports for the service utilization

Configured high Availability, load balancing and autoscaling options in EC2.

Installed, configured, maintain Continuous Integration, Automation and Configuration Management tools.

Deployed java-based applications in webservers and application servers

Installed fusion middleware software, weblogic, SOA, OHS, OSB

Configured environment with resources like managed server, jdbc connections, jms resources using manual and automation.

Integrated application with application based on solutioning provided.

Deployed applications and troubleshot issues.

Troubleshoot environment issues and application issues.

Cutover & Go-live Preparation.

Coordinated Vendor Teams and Worked with them based on demand.

Project 2: Metro & PS Bank, Philippines Work Location: Manila, Philippines & Bangalore, IN

Role: Senior Consultant

Duration: January 2016 to May 2018

Responsibilities / Deliverables

The scope of the project is to build and deploy Flexcube applications and provide end to end support.

Built multiple dev, test, pre-prod, and production environments and tune the environment as per the best practices identified in flexcube application continuous testing.

Created flexcube application related resources and ear files, deployed on application servers.

Worked on operations & Production Support with large critical systems in multiple technologies and platforms including WebLogic, Apache tomcat, OBIEE, SOA, OTD and OSB

Worked on WebLogic Server, Apache http Server as administrator for Server Installations, Configuration, Application components deployment, performance tuning including troubleshooting and maintenance.

Created multiple scripts to reduce manual efforts using WLST, python and shell script.

Created performance monitoring dashboards to monitor applications and middleware products.

Configured multiple clusters and implemented Load Balancing, High Availability and Failover functionality.

Analyzed the logs using Kibana, Splunk and Dynatrace

Project 3: National Australian Bank, Australia Work Location: Melbourne, Australia & Bangalore, IN

Role: Senior Consultant

Duration: December 2014 to January 2016

Responsibilities / Deliverables

The scope of the project is to create new environments and deploy Flexcube application and provide end to end support.

Worked on WebLogic Server, Apache http Server as administrator for Server Installations, Configuration, Application components deployment, performance tuning including troubleshooting and maintenance.

Created WLST scripts for application deployment in WebLogic environments.

Applied quarterly patches based on the schedules.

Participated in CAB meeting for deployment schedules and management meeting to report issues, updates.

Provided support during the testing phases and maintained application to be online.

Involved in application and platform migration, go-live activity.

Handled critical issues, system outages during hyper care window.

6. Capgemini India Pvt Ltd January 2013 to December 2014

Projects: General Motors, USA & Direct Line Group, UK Work Location: London, UK & Bangalore, IN

Role: Consultant

Duration: January 2013 to December 2014

Responsibilities / Deliverables:

The Scope of the project is to install fusion middleware products and deploy application and provide end-to-end infrastructure support.

WebLogic Application server administration under heterogeneous environments like UNIX, RHEL, sun Solaris, Windows, Exalogic and Super cluster

Installed and created new environments as per the design.

Installed, extended, and configured domains with managed servers, clusters, and machines.

Created clusters, JDBC resources and JMS servers.

Deployed applications as per the CAB schedule and provided go live support.

Installed WebSphere MQ software products in different environments.

Coordinated with multiple teams during build and run phase.

Provided daily updates to the management and discuss on pending issues and enhancements.

7. Wipro Technologies November 2011 – January 2013

8. Artech Info systems Pvt. Ltd (contract) – (Client : Wipro Technologies) February 2011 to November 2011

Project: Hutchison 3G, UK Work Location: Bangalore, IN

Role: Senior Software Engineer

Duration: February 2011 to January 2013

Responsibilities / Deliverables:

Participated in new environment builds.

Installation and configuration of middleware products like WebLogic, JBoss and WebSphere

Application deployment as per the schedule

Monitored the tickets, provided the solutions, and updated the issues tracker on daily basis.

Monitored the application status and report generation on daily basis.

Reported to management on performance improvements and bug fixes.

Achievements:

Awarded “High Five” for automating and simplifying complex tasks from OpenText.

Awarded “Raising Star” for quickly learning and handling the production issues from Manhattan Associates

Awarded “we applaud” for the best performance from Oracle Financial services.

Awarded “Feather in my cap” for the best performance from Wipro technologies.

Contact this candidate