•Enhanced Braintree’s merchant onboarding services using .NET 7 and Kafka, reducing account-verification delays and increasing successful onboarding completions by 14%.
•Reworked the checkout authorization pipeline with gRPC and Redis caching, improving peak-load response times by ~35 ms and increasing system stability under heavy traffic.
•Integrated AI-assisted features into the UI, including LLM-powered input validation hints, automatic field suggestions, and ML-driven risk context modules embedded directly within React components.
•Built Python/FastAPI fraud-scoring microservices leveraging embeddings to reduce false positives and accelerate analyst decision-making by 20–25%.
•Developed Next.js + GraphQL compliance dashboards that reduced KYC/AML investigation turnaround time from hours to minutes.
•Containerized and migrated legacy .NET Framework components to Kubernetes, reducing deployment failures by 40%+ and simplifying infrastructure operations.
•Led architecture reviews and mentored junior developers across React, .NET, and Angular projects, improving code quality and reducing PR cycle time by ~30%.