Jan 2026 – Present · 4 mos

Jan 2023 – Apr 2026 · 3 yrs 3 mos

• Spearheaded development of the Financial Deduction Transparency feature for 3M vendors across 21 countries, building scalable backend services on AWS ECS to fetch real-time deduction root causes for ~4M invoice lines and a configurable UI built in React, reducing 24K vendor contacts annually.
• Developed and launched Vendor Invoice Business Service, a Coral-RPC backend hosted on AWS ECS, powering 2nd gen vendor apps for 3M+ users in 23 countries. Handles 181M views yearly, generates 700k invoices monthly.
• Designed and implemented invoice details page for new vendor app using React. Integrated Redux Saga for managing asynchronous tasks, improving data retrieval by 30% and page responsiveness by 25%.
• Engineered an elastic data storage lambda to ingest invoice events from Kinesis, identify duplicates, and store the latest records in OpenSearch. Processed approximately 50 million Kinesis records monthly to ensure seamless system operation.
• Streamlined cross-functional collaboration for feature delivery, enhancing operations and user experience. Fostered communication among product management, UX design, and operations teams, ensuring success.

Aug 2021 – Jan 2023 · 1 yr 5 mos

• Maintained a Spring Boot Java Vendor Invoice Management App with a JSP and JS frontend, serving 3 million vendors for invoicing.
• Migrated application from long-term AWS credentials (Odins) to short-term credentials (Turtle) and registered hosts for credential reception, which reduced operational overhead of maintaining 100+ Odins.
• Implemented fault testing with Gremlin, akin to Chaos Monkey, boosting our resilience score by 20 points, leading our team to top rank in the org.
• Migrated the build system from HappierTrails to Gradle, improving maintainability. Achieved up to 90% faster incremental build speeds and reduced build output verbosity.
• Launched Vendor Invoice Management App in Colombia, allowing vendors to view and create invoices. Addressed UI, architectural, and security issues.

Jan 2021 – Jul 2021 · 6 mos

• Revamped Export All feature in Invoice Management App. Handling 20,000 daily requests. Addressed high latency, proposing multiple solution designs, including low-level design, for long-term mitigation.
• Identified an architecture gap, reducing latency by 80% after resolution. Recommended UI enhancements like a progress bar, earning strong leadership support.
• Spearheaded UI enhancements alongside. Developed dynamic banner designs to educate 400k vendors on global tax variations.
• Architected low-level design for refactoring and revamped the Invoice Management App’s Integration Test package. Reduced execution time by 75% by transitioning to a modular test structure and implementing design patterns like interface, factory, and template.