• Built a high-performance MCP server to accelerate development workflows by wrapping around JAWS APIs (for secure DB access), Authentication and Authorization APIs (to replace Postman login flows), and a custom RAG-based API interface for domain-specific question answering — significantly improving speed, security, and developer productivity.

• Designed and led the implementation of both Primary and Secondary Device Fingerprint (DFP) authentication platforms, creating a layered, fraud-resilient infrastructure. Delivered comprehensive APIs, modeling frameworks, risk assessment pipelines, and production integration across platform services.

• Drove strategic optimization of 2FA for passkey and passive login users, eliminating redundant challenges and accelerating rollout from 0% to 100%, while enhancing UX and preserving security controls.

• Led cross-functional release management and client integration initiatives, improving platform stability, operational efficiency, and adoption across STS, Risk, and downstream partners.

• Recognized for deep technical ownership, strong execution, and collaborative influence across security, platform, and product teams.

• Improved skip 2FA login for remembered device functionality.

• Worked on Push Notification initiative as SMS OTP authentication replacement, improving security, user experience, and cost-efficiency.

• Proactively address authentication and authorization challenges, mitigating policy-related incidents and reducing security risks in both Security Hackathon and production scenarios.

• Led end-to-end design and implementation of Venmo Charity profile, delivering functionality to 85M+ businesses.

• Designed and implemented optimization solutions (caching and async), reducing system latency by 10% to 40% and enhancing overall performance.

• Contributed to enterprise initiatives and successfully delivered Venmo Business Profile, Venmo Entitlement Platform, Visa+ and Venmo Compliance.

• Took ownership of core Identity projects from development to deployment, including Policy Engine prototype for XACML-based authorization, Identity Access Point for database operations, orchestration service with NodeJS and GraphQL APIs for PayPal adjacencies, and Authentication and Authorization platform with OAuth2 and OpenID protocols.

• Managed AMQ message publisher and consumer connecting Identity domain with other PayPal application services, implemented features and tests, and contributed to live support and issue resolution in Agile environment.

• Worked on data migration project from DB2 to Oracle database.

• Implemented Java tools transforming from raw data to XML format.

• Built Java tools decrypting encrypted data which are extracted from database.

• Worked on AparWiz software version control for checking, changing and delivering codes with automation testing function using Java, JavaScript, HTML5, CSS.

• Designed and built web-based for internal DB2 z/OS performance tooling and processing using Java, HTML, CSS, DB2 and IBM WebSphere.

• Worked on TPC-H Java application, which performs SQL statements with high volume of select, insert, update, or delete data using Java and DB2.

• Worked on Java application for generating XML, HTML, and CSV reports from raw input data.

• Utilized IBM Cognos Analytics software to visualize performance reports.

• Worked on Inventory web tool to automate reports and inventory products using C#, ASP.NET, and SQL.

• Designed and implemented iLabel tool, which is used for registering, scanning, and transferring drives using C#, ASP.NET, and SQL.

• Designed and integrated E-shipper and Asset Transfer web site, which support shipping or transferring processes using C#, .NET, CSS, and SQL.

• Built new features for Server Status Switching application using C#, .NET, CSS, and SQL.

• Built new features and fixed bugs for Doplar Daily Program, and Dashboard using C#, .NET, CSS, and SQL.