Feb 2022 – Sep 2024 · 2 yrs 7 mos

Oct 2020 – Feb 2022 · 1 yr 4 mos · Chennai, Tamil Nadu, India

• Tech Stack: Java, JAX-RS, Spring-Boot, Maven, SQL, NoSQL(Elastic Search)
• ● Handled and designed payments flow with 3D-secure authentication for the Uk region, it helped to improve recurring transactions and bank transactions by reducing the transaction failure by 4%
• ● Transformed and Improved Add card service by storing and updating transaction id that helped to monitor the activities of long time Paypal users accounts, which resulted in a better customer experience in card validation during payment processing
• ● Designed and developed batch components that resubmit the cancelled transactions and also extended this design for handling cancelled split transactions and it helped to avoid processing fees for 30% of refund transactions and reduced the processing
• cost by 10%
• ● Created batch components for decommissioning unused Paypal accounts by sending prenotes to banks from Paypal that helped improve the site performance and reduced the maintenance cost by 2%.

May 2019 – Sep 2020 · 1 yr 4 mos · Chennai Area, India

• Tech Stack: Java, Scala, Spring-Boot, Gradle, SQL, IBM Websphere queue, JMS, Linux.
• ● Designed and developed batch components that perform After-trade stock calculations and checks for Settlements and clearance processes to get approval from ASX(Australian Stock exchange) and that enhanced the settlement process by 40% for Bank of America customers.
• ● Improved the efficiency and performance of After-trade services by using IBM Websphere queue for exchanging transaction messages. Implemented multi-threading that enhanced our service performance from 1500 milliseconds to 800 milliseconds per transaction.
• ● Improved the performance(10%) of various After-trade batch components by migrating from C# to Scala Spring batches
• ● Handled development to testing using Junit(Mockito framework) and writing BDD cucumber scenario tests for API testing and moving code to production using continuous Integration using Jenkins and then deployment in Linux server

May 2016 – Apr 2019 · 2 yrs 11 mos

• Tech Stack: Java, JAX-RS, Spring, Maven, MainFrame, Groovy script
• ● Designed and developed scalable web services in a cloud platform(Stackato-Paas) and balanced the load on servers using a zookeeper that helped increase the availability of our services and decreased the failures by 3% during peak load.
• ● Played a key role in developing /maintaining web services for distributed data centres. Built distributed, scalable, lightweight microservices that helped improve the performance and efficiency of web services.
• ● Designed and Developed build config UI with the help of Jenkins and wrote an automated CI/CD pipeline using Groovy scripts that allowed us to build and deploy our projects efficiently and reduced manual work.
• ● Performed NFR test using Apache Jmeter to check for scalability, availability, and consistency of web services during peak load that helped design and develop highly scalable services.
• ● Migrated the Airline's ticket booking functionalities from monolithic Mainframe services to Java microservices
• ● Developed new features for an eCommerce site(Tatacliq.com) using hybris technology(java, Spring with NoSQL). Monitored the deployed changes that helped us to improve the site performance and availability.

May 2015 – May 2016 · 1 yr

• Project: TATA eCommerce
• Worked as a developer for eCommerce site using hybris technology(Spring and
• java), and also worked on hybris tools like HMC,Backoffice.Have experience in
• analytical and monitoring tools which we have used to analyse the ecommerce
• website(tatacliq.com)