Rajat Kumar Dabas

• • Owned backend architecture for Full Swipe Offer, designing high-throughput data pipelines consuming [20000+ Kafka events/sec] and powering real-time merchant analytics via Elasticsearch, MySQL (Aurora), and TimescaleDB

• • Improved system performance of 10+ high-traffic APIs by migrating from JSON to Protobuf, achieving 35% reduction in payload size, 15% lower latency, and 20% increase in throughput

• • Led development of AI-powered MCP servers and internal chatbot, automating cross-functional workflows and merchant queries and reducing external API dependency by ~99%, leveraging Python, Vercel SDK, Nextjs, , and OpenAI APIs.

• • Integrated session-based authentication system with automated security testing and continuous deployment securing 100,000+ user sessions with zero security breaches and 99.9% session persistence rate for the Homeland Group

• • Delivered real-time monitoring dashboard with ReactFlow visualization and automated CI/CD deployment workflows managing 10,000+ business workflows, reducing workflow errors by 45% through visual debugging

• • Developed resource distribution platform serving 15,000+ active users across four colleges using React, Next.js, Tailwind CSS, MongoDB, and PostgreSQL achieving 4M+ page views with 30-minute average session length

• • Implemented scalable full-stack architecture with automated deployment workflows supporting high-traffic educational content distribution and real-time user engagement