Dec 2022 – Aug 2023 · 8 mos · Dubai, United Arab Emirates

• Skillfully executed the migration of the global search system from a monolithic architecture utilizing Elasticsearch to a more scalable solution within the horizontal buyer service, integrating Algolia for enhanced performance and efficiency.
• Led the migration effort of authentication flows from the monolithic structure to a specialized authenticator microservice using python-social-auth library for Django
• Played an integral role in developing a Python/Django-based microservice from the ground up, designed specifically for a referral program aimed at enhancing user verification
• Demonstrated expertise in creating comprehensive tech design & architecture specifications for critical programs, including the business verification program and various other features
• Acknowledged as a consistent "code review hero" for several months, upholding code quality and ensuring best practices within the development process
• Led the Backend Guild, playing a pivotal role in shaping technical discussions and influencing design decisions for the tech team

Jul 2018 – Nov 2022 · 4 yrs 4 mos · Chennai, Tamil Nadu, India

• Built the infrastructure to bring Chaos Engineering in PayPal's production systems
• Migrated the VMware's open source platform Mangle from Cassandra and modified the code base for MySQL integration
• Designed and architected the PayPal's Asset attribution platform - Ownership, for 100k+ API hits/day by removing SPOF and horizontal scaling
• Dockerized the application and configured the production deployment model with uWSGI
• Reduced the performance degradation for Ownership by eliminating 90% queries for most of the APIs using Django's prefetch

Mar 2016 – Jun 2018 · 2 yrs 3 mos · Chennai, Tamil Nadu, India

• Designed and architected the PayPal's disaster recovery dashboard - RegionalParity, from scratch using microservices
• Created the database schema design and implemented using JPA and Hibernate
• Devised and incorporated the solution for the backend Java component's job processing in a distributed environment using open source library Shedlock
• Created the data access layer for the PayPal's slackbot using SQLAlchemy

Oct 2014 – Feb 2016 · 1 yr 4 mos · Chennai, Tamil Nadu, India

• Migrated the PayPal's database query assistant platform - Orion, backend to the new Spring boot framework Raptor
• Created the JAX-RS API endpoints and created the bootstrap configuration using the Spring bean scopes
• Exposure to the design patterns like Visitor by working on the features and bug fixes for the Orion's query visitor
• Created the Orion DML project's UI with ReactJS and PayPal's Kraken framework based on NodeJS
• Enhanced the SRE's team dashboard with new features and bug fixes using technologies like Javascript and Elasticsearch

Jun 2012 – Sep 2014 · 2 yrs 3 mos · Chennai, Tamil Nadu, India

• Worked on the features and bug fixes for the log search assistant tool
• Created a backtrace decoder tool using PHP
• Worked for the SRE Payments team to resolve production incidents