I'm Rohit Saini, a Senior Full-Stack Engineer with 9.5+ years of experience building scalable web applications across fintech, QSR, e-commerce, and ed-tech domains. Currently working as Sr. Consultant & Lead Engineer at Capgemini, where I own architecture decisions, lead teams, and deliver enterprise-grade products — including Subway's digital ordering platform (zero-downtime launch across 3 regional markets). My core stack: React.js · Node.js · MongoDB · TypeScript · AWS (EC2, ECS, Lambda, S3, SQS) · Docker · CI/CD I help developers with: ✅ MERN Stack interviews & prep ✅ System Design concepts ✅ AWS deployment & architecture ✅ Career guidance & resume reviews ✅ 1:1 mentorship sessions Book a session — let's level up your career together 🚀