Rajarathinam Gunasekaran

About Rajarathinam Gunasekaran

Oracle Certified Java Programmer with 15.5 years of experience in application development and application support.AWS Certified Cloud Practitioner with over 4 years of experience in designing and developing single page applications using Angular, Spring Boot and Microservices architecture.8 years of experience in building high performance XML and REST based web services using Java, Spring and Hibernate frameworks.4 years of experience in writing Python scripts for report generation and process automation.Led an application support team of 8 people for 3 years and was instrumental in reducing the Production tickets count by developing a self-help portal along with the team that eliminated the manual database updates/inserts.2 years of experience in building and maintaining GoAnywhere MFT workflows.5 years of experience in developing and maintaining batch processing jobs using Spring Batch.1.5 years of experience in developing data pipeline components using Apache Beam, Apache Flink, MySQL and ElasticSearch.

Experience

1. Senior Engineer

   Nagarro

   Apr 2023 — Present · Raleigh, NC, US

   As a Technical Lead on the Encounter Processing System project for a state Government Healthcare Services Department, designed and developed new REST APIs while optimizing the existing services to improve performance and scalability of the application.The web portal has been upgraded successfully from Angular 7 to Angular 20.3 ensuring security standards and improved user experience.Developed and maintained GoAnywhere Managed File Transfer projects to enable secure file transfers across multiple systems within the Medicaid Enterprise System.Developed Python scripts to automate data extract generation and systematic delivery to external systems, improving efficiency and reliability.Successfully implemented SAML-based SSO integration with external vendors, enhancing the application security and user authentication.Modified the Regression suite execution process by combining the input files which reduced the execution time by 50%.Provisioned and configured AWS EC2 instances, including installation and setup of IBM WebSphere Application Server (WAS), Operational Decision Manager (ODM), and App Connect Enterprise (ACE).Supported the application maintenance activities, including AWS EC2 patching and successful upgrade of RHEL from version 7.9 to 9.7 to maintain security complianceProvided production support by performing root cause analysis and resolving the issues within the stipulated SLA ensuring system stability.

Education

• Institute of Road and Transport Technology

  B.Tech, Information Technology

Skills

• Core Java
• Testing
• Unix
• Sql
• Hibernate
• Servlets
• Oracle
• Requirements Analysis
• Javascript
• Java
• C++
• C
• Jsp
• Spring Framework
• Software Development
• Javaserver Pages (Jsp)
• Html
• Sdlc
• Java Enterprise Edition
• Web Services
• Pl/Sql
• Spring Batch