Professional Experience
Software Engineer II
PayPal
Feb 2025 – Present | Chennai, India
Leading global payment processing in the Bank Processing team, handling NACHA, SEPA, and international banking integrations. Previously contributed to card payment projects.
- Instant Deposit System: Led development of debit leg for Instant Random Deposit, serving 8M+ users annually (700K+ monthly), enabling instant bank account linking and payouts, reducing onboarding drop-offs.
- AI Chatbot: Conceptualized and launched a domain-specific AI chatbot for the European payments ecosystem (EBA, SEPA) using GPT-4o mini and PayPal’s AI Gateway, with RAG-based architecture for contextual insights.
Java 17
Python
AWS
Gen AI
RAG
LLD
System Design
Agentic AI
Software Engineer I
PayPal
Jul 2023 – Feb 2025 | Chennai, India
Promoted to SE-II
Developed high-impact solutions for payment processing systems, focusing on performance optimization and automation.
- API Optimization: Built API resolving n+1 problem, reducing latency from 6.5s to 650ms (90% improvement).
- Data Processing: Designed multithreaded script updating 1.4B+ records, averting $350K in yearly losses via fallback matching logic.
- Automation: Created scripts for mock file generation (Amex, BNPP, MasterCard, FDMS), cutting QA effort by 90% and speeding test cycles by 5×.
- Incident Response: Led recovery of €500M across three incidents, ensuring zero customer impact and implementing permanent fixes.
Java 17
Spring Boot
Kafka
Docker
Splunk
BigQuery
SQL
DataDog
Research Intern (Android Dev)
Carleton University
Jul 2022 – Oct 2022 | Ottawa, Canada
Offered $15k Graduate Fellowship
Sole Android developer for a GIS-integrated mobile app visualizing pandemic simulation results.
- System Design: Led end-to-end architecture (HLD/LLD) for scalable implementation.
- GIS Integration: Built app using ArcGIS Cloud for real-time spatial data visualization.
- Research Impact: Applied DEVS formalism for interactive geographic data analysis.
Android
Kotlin
ArcGIS SDK
System Design (HLD/LLD)
GIS
Student Developer
Google Summer of Code (Castor Software Research Center)
Jun 2021 – Aug 2021 | Remote
Contributed to open-source software testing initiatives at Castor Software Research Center.
- Mutation Testing: Developed unit tests for 41 methods, achieving 20% mutant kill rate.
- Code Stability: Resolved test anomalies, improving codebase maintainability.
- Software Quality: Enhanced fault detection and resilience against edge cases.
Java
OOP
Git
Software Testing
Mutation Testing
Software Engineering
Web Developer & Technical Writer
Google Season of Docs (Global Wordnet Association)
Aug 2020 – Nov 2020 | Remote
Enhanced Open Multilingual Wordnet (OMW) for NLP applications.
- Technical Documentation: Authored guides for developers and researchers.
- Web Development: Built interactive web pages using Flask, JS, and HTML/CSS.
- Backend Utility: Created module for versioned metadata, aiding reproducibility.
Flask
Python
NLP
JavaScript
HTML/CSS
Full Stack Web Development
