• Led the end-to-end technical design and delivery of a new simplified receipt lookup system for RFID stores by expanding the existing microservices architecture, eliminating the dependency on credit card or bank statements

• Redesigned customer-facing post-purchase systems to improve reliability and reduce lookup times by up to 80% and significantly improving reliability for 20-30k daily users across time-sensitive environments (stadiums, event venues).

• Collaborated with cross-functional teams (product, legal, security, operations) to deliver region-specific invoicing and credit note features for the US, UK, Canada, and Australia, ensuring compliance across complex international requirements.

• Developed and deployed AWS-native solutions (SQS, Lambda, CloudWatch, S3, DynamoDB) for secure API integrations, token validation, and enhanced monitoring, improving platform resilience.

• Owned migration and onboarding for multiple post-purchase systems across Amazon Go, Fresh, third-party Just Walk Out stores, mentoring new developers and leading cross-team knowledge sharing.

• Built and deployed compliance dashboards and behavior analysis tools, reducing operational cost by $1.6M through self-service capabilities and improved spend tracking.

• Developed full-stack features across backend (Java/Spring) and frontend (React) systems, supporting enterprise-scale US operations.

• Established by a group of 20 CMU students and is running an independent web application project of a platform for CMU students and organizations

• Led a team of five front-end engineers by coordinating weekly meeting schedules and planning sprints.

• Developed an event component for calendars in an internal calendar of BleuDot using Next.js

• Designed and developed a stimuli-testing website for collecting data and creating algorithmic models concerning donor activities

• Created 3 python applications for benchmarking the accuracy of algorithmic models