Hi, I'm Rajat Kotian

Software Development Engineer at Mastercard (Finicity) with 6+ years of experience building scalable full-stack applications, AI-powered systems, and open banking platforms. Specializing in React, Node.js, Python, and AI/ML integration with LangChain, CrewAI, and RAG architectures. Proven track record of accelerating sales processes by 45%, scaling platforms to serve 95% of US financial institutions, and delivering sub-second response times in production.