Owns three tier-1 backend components — Onboarding, Dispute Management, and Compliance — within PayPal's consumer stack, integrating with 6+ downstream services in a high-throughput fintech ecosystem.

• Architected and delivered onboarding APIs (signup, checkpoint, KYC document scan, address verification, OTP, legal agreements) in Java & Spring Boot — enabling 1M+ annual user enrollments while reducing drop-off by 20%

• Engineered modular compliance and KYC flows integrating 6+ downstream services (Wallet, Identity, Risk, Compliance, Contact Verification, Credentials) with OAuth 2.0, encrypted PII handling, and granular access controls — cutting verification failures by 25% and meeting PCI and regulatory standards

• Led end-to-end development, testing, documentation, and production releases for PayPal's legacy dispute management system — zero major incidents; 100% of high-priority defects resolved within SLA

• Built comprehensive test suites (Rest Assured, TestNG, Cucumber BDD) achieving 95–100% code coverage and sub-2% post-release defect rate across all owned systems

• Partnered with product, frontend, and compliance teams to define clear API contracts from ambiguous requirements — reduced integration errors by 30% and accelerated partner onboarding cycles

• Mentored 4 engineers through weekly code reviews, design walkthroughs, and 1:1 coaching; grew 2 into independent feature owners and improved team code review turnaround by 15%

• On-call for production systems; monitors service health via Splunk and Datadog, resolves critical incidents within SLA, and leads post-mortem analysis to eliminate recurring failures

• Built and optimized backend APIs for Walmart's Sellers Chargeback feature (Java, Spring Boot) — improved transaction processing efficiency by 25% and compliance accuracy by 15%

• Integrated 3+ third-party services including payment gateway, fraud detection API, and tax calculation service — resolved cross-vendor compatibility issues and reduced future integration ramp-up time by 40%

• Achieved 98% code coverage and cut deployment errors by 20% through rigorous test automation and CI/CD discipline using Jenkins and GitHub Actions

• Managed and led a back-end team of five members on the Green Cloud project, boosting team productivity by 30% through efficient coordination and collaboration.

• Developed a cloud-based backend for the Green Cloud web application, focusing on scalability and security which led to a 20% reduction in resource usage.

Carrier-grade backend for a 4G/5G subscriber management platform serving Tier-1 mobile operators across Asia, Europe, and the Middle East — one of Ericsson's flagship products.

• Engineered and deployed scalable microservices (Java, Spring Boot, Kubernetes) supporting 11M+ mobile subscribers at 99.9% uptime; reduced production defect rate by 25%

• Designed and implemented a CI/CD framework covering 20+ microservices and 5+ deployment pipelines — achieved 95% deployment success rate and 20% faster change lead times; onboarded 8+ engineers to the framework

• Implemented Apache Kafka as high-volume, low-latency messaging infrastructure — reduced message processing time by 40% and enabled 50% more concurrent transactions

• Served as primary incident triage contact; resolved 150+ recurring code issues driving a 60% reduction in production defects

• As a Microsoft Student Partner, spearheaded organization of technical events, webinars, workshops, and hackathons, resulting in a 40% increase in event attendance and a 25% rise in active community participation, successfully fostering collaboration and knowledge sharing within the Microsoft community.

• Leveraged technical and management skills to guide individuals in emerging technology trends, resulting in a 30% improvement in technical competency and a 20% increase in professional development opportunities.

• Collaborated with the Microsoft partner community, driving a 25% increase in the adoption of Microsoft technologies, enhancing productivity for partner organizations.