• Expanded Vault into a full customer info platform (shipping, billing, attributes) with merchant-level isolation and roadmap for cross-merchant sharing.

• Designed usage-based billing on GCP (MCP server), enabling merchants to bill hourly, weekly, monthly — powering AWS, GCP, SaaS models.

• Launched Agentic AI Checkout, using LLMs GPT4o model for product discovery, categorization & conversational shopping across 10K+ merchants. Added real-time card/shipping updates & gifting.

• Integrated with Honey, Checkout Service, Identity, Perplexity, Copilot to power shoppable ads & AI-driven checkout on partner platforms.

• Enabled Fastlane for BYOP (Adyen) with real-time token issuance; expanded globally (EU, AU) with 3DS & local compliance.

• Restructured Vaulting (multi-SOR + JunoCache), cutting recurring detokenization latency by 90% (1000ms→100ms). Now live for Apple Pay & ACH, expanding to cards, wallets, banks, gift cards.

• Led & managed 16 engineers across time zones, driving delivery from design → production on SEPA/ACH vaulting, Shopify & eBay integrations, and Fastlane features.

• Drove PayPal’s Quantum Leap initiative, reducing checkout latency by ~150ms, launching a Session API, and improving branded checkout.

• Partnered with Product, APAC, Braintree, Security to balance performance, scalability & resilience.

• Elevated API security & observability (Datadog dashboards, async vaulting, token lifecycle), enabling zero-downtime rollouts.

• Mentored interns, improved sprint planning, and shaped hiring — building a high-performing distributed team culture.

• Owned the design and launch of ACH payment source integration, improving system performance and expanding merchant payment options.

• Delivered Fastlane enhancements, including one-time-use tokenization (NONCE) to strengthen fraud prevention and checkout reliability.

• Designed and implemented the Vault Metadata DB architecture, evolving from proof-of-concept to a full-scale production model.

• Took on cross-team leadership, collaborating with Braintree and internal teams on design decisions and process improvements.

• Redesigned Customer API search by introducing Apache Lucene, enabling flexible, scalable, and high-performance customer search.

• Made critical GraphQL vs REST architectural decisions, shaping the future design of PayPal’s customer APIs.

• Acted as a key problem solver, resolving live production issues, leading on-call support, and stepping up to own Customer API after the project lead’s departure.

• Built credibility early by demonstrating collaboration, adaptability, and technical depth, quickly becoming a trusted contributor.

Skills:- Reactive REST Framework, System Architecture, Product Development, Oracle, Splunk, Kibana, Linux, Python, Kibana, Splunk, DataTrek

• Working in agile methodology along with managing an offshore team and collaborating with different teams along with client meetings for implementation and requirements to deliver high-quality applications.

• With Software Development Life Cycle (SDLC) knowledge introducing new features and solving production defects and doing code reviews.

• Solving complexity issues and developing the most configurable application with maximum automation to reduce human mistakes.

• Increasing application productivity and optimizing application by query optimization or reducing time complexity resulting in a significant increase in processing leading to millions of dollars in revenue.

• Lead the development of electronic prior authorization (EPA) as a standalone continuous running batch job processing more than 10000 transactions in a day tending toward more than 1000 of case processing generating more than ~7.5 or more million dollars.

• Developing several different spring boot batch jobs and microservices on different container platform

• Integrations with more than 7 different types of PBM / Claims vendors such as CVS, OPTUM, MEDIMPACT, etc. with JUnit test cases.

• Developing stand-alone batch jobs using Spring boot. Developing alerts using AWS services to monitor batch jobs failure.

• Integration with AWS services like SQS, SNS, EC2, Aurora MySQL, Route 53, Sonar Cube, Telephony, etc.

• Participated in SVN to GIT migration and gathered knowledge on Cloud technologies.

• Developing Web Application using Java , Spring hibernate, Mysql , GWT, Java Servlet .

• Creating Rest Web Service and Soap Web Service.

• Decreased application load time speed by 10% after optimizing queries and using pagination.

• Modularization of code improving readability ,manageability and re-usage of code. Helped fixing the bugs easily and reducing development efforts.

• Developing JUnit for testing.

• Working in sprint environment with use of tools like JIRA for ticket management and Jenkins for deployment and also set up build for CI/CD. Code version managed using SVN.

• Developing externally and internally web Services using SOAP. Solving design gap using technical skill.

• Using schema design called NIEM (National Information Exchange Model) to design web service interfaces with external partners and to design internal executable Business Process

• Developing different component like Pages, Interface, Batch and Using Portlet over Servlet.

• Developing JUnit for testing each services and their implementation including DAO layer using EasyMock.

• Fixing defects raised in Integration and System Testing.

• Using version control tool like SVN.