Ujjawal Singh

Full-Stack Software Engineer | 3D & Distributed Systems

Building high-performance SaaS platforms, AI workflows, and interactive 3D web experiences.

About Me

Full-stack engineer with expertise in building multi-tenant SaaS products, real-time event-driven systems, AI-powered applications, and interactive 3D web experiences.

SaaS Infrastructure & Distributed Systems
Architecting multi-tenant platforms with account-scoped isolation, 6-level hierarchical RBAC, automated Stripe billing, and Inngest event queues.
Next.js / Nextra / TypeScript / Node.js / Prisma / AWS / MongoDB / Inngest
AI & Intelligent Automations
Building context-aware RAG pipelines, Qdrant vector search engines, custom LLM integrations, and WhatsApp/Slack operations bots.
Python / Qdrant / Cohere / OpenAI / Vercel AI SDK
3D & Creative Web Engineering
Crafting high-performance WebGL graphics, custom GLSL shader effects, interactive camera controllers, and responsive canvas interfaces.
Three.js / React Three Fiber / Unity / TailwindCSS

Featured Projects

Project	Description	Tech Stack
QUASR+	Enterprise multi-tenant SaaS platform featuring account-scoped data isolation, hierarchical RBAC, event-driven backends with Inngest, Stripe billing, and AI workflows.	`Next.js` `TypeScript` `Node.js` `MongoDB` `AWS` `Stripe` `Inngest`
Bandhu	Three-sided platform connecting buyers, vendors, and internal ops. Features WhatsApp-to-DB LLM parsing pipeline, real-time pricing, and Slack AI workflows.	`Flutter` `TypeScript` `Python` `MongoDB` `Cohere` `Qdrant`
3D Interactive Portfolio	Interactive 3D portfolio featuring rotating planet canvas, dynamic starfield, built-in terminal emulator, and glassmorphic UI.	`Next.js` `Three.js` `React Three Fiber` `TypeScript`
Chatbot Builder	Full-stack AI platform enabling users to upload files, index knowledge using Qdrant vector embeddings, and chat with context-aware AI assistants.	`Python` `React` `Qdrant` `Cohere` `MongoDB`
Event Reach	Multi-channel e-invitation platform automating multi-event management, guest lists, and Email & WhatsApp invitations with custom sender identities.	`TypeScript` `AWS Lambda` `MongoDB` `WhatsApp Web.js` `Vercel`