Raju Deb Nath

Collaborate with international engineering teams to develop and maintain large scale production applications used by 250K+ end users. Leading a multi-track modernization effort across a 500K+ line legacy codebase, upgrading to modern React, TypeScript, Material UI, and Redux, and raising test coverage from 20% to over 99.60%.

Developed the Bangladesh National Portal, a cloud-hosted government platform serving 20M+ citizens nationwide. Designed scalable backend services with NestJS and MongoDB, built secure REST APIs handling 1M+ requests per day, and improved system observability using Elasticsearch, cutting incident detection time by roughly 40%.

Developed scalable React.js and Next.js applications focused on performance, accessibility, and SEO for a US senior-living referral platform. Led migration from React.js to Next.js, improving average page load speed by roughly 40% and organic search traffic by around 20%.

Architected a multi-tenant SaaS platform automating customer engagement, lead qualification, and sales workflows, onboarding 20+ early pilot customers. Built a RAG system enabling AI agents to answer questions from company-specific knowledge bases, achieving ~90% answer relevance in internal testing.

Pursued a Bachelor of Science in Computer Science and Engineering, completing a thesis on a clinical Retrieval-Augmented Generation framework with a novel context-label schema and Shapley-based source tracking.