I build and lead the development of enterprise SaaS platforms that serve over 1 million users — owning everything from React frontends to NestJS backends, database design to CI/CD. Currently Senior Frontend Engineer & Technical Lead at BlueBricks Technologies, where I'm the sole technical lead for a multi-tenant Partner Relationship Management platform: 60+ backend modules, 40+ frontend pages, a team of 3 engineers, and direct stakeholder ownership. What I've shipped: → E-signature platform rebuild: 60% faster PDF rendering, real-time video signing with live cursor tracking (WebSocket + Jitsi), serving 5+ enterprise clients → Universal in-browser document renderer (PDF/DOCX/PPTX/XLSX) — cut load times 50%, eliminated third-party viewer dependencies → No-code chatbot flow builder (React Flow) on a platform serving 1M+ users across WhatsApp, Messenger & Telegram — 40% UI performance gain → FIDO2/WebAuthn passwordless auth platform: owned the frontend across 8+ protocols and independently built the LDAP/Active Directory backend in Node.js → Published a WordPress auth plugin to the official WordPress Plugin Directory → CI/CD automation that cut deployment time from 45 minutes to under 10 Stack I work in daily: React.js | Next.js | TypeScript | Node.js | NestJS | Express.js | MongoDB | Redis | RabbitMQ | Docker | GitHub Actions | AWS S3 | REST APIs | WebSocket | Jest | Cypress I care about performance budgets, clean architecture, and mentoring engineers into owners. Also hands-on with LLM API integration (LangChain, RAG, MCP) for AI-powered product features.