I'm Kajal Tiwari, a full-stack developer building AI-powered products and interactive web experiences. I work across the interface, APIs, and data layer—from the first screen to the workflows that make an application useful.
My projects bring together React and Next.js, Node.js and Python, and applied AI. I enjoy turning a complicated task into a clear sequence: understand a resume, practice for an exam, prepare for an interview, or explore a product in 3D.
I'm a curious girl who loves painting and learning about cosmology—from our solar system to the universe beyond. There's always another question I want to explore. The curiosity never ends.
Project links & engineering details
- AI & retrieval: Gemini embeddings, Qdrant semantic search, source references, and a database search fallback.
- Backend & data: Python, FastAPI, Pydantic, async SQLAlchemy, PostgreSQL, and Alembic migrations.
- Product workflows: authenticated study sessions, saved practice results, mistake notebooks, progress charts, and backend tests.
Open the app ↗ · Explore code ↗
- Documents & AI: PDF/DOCX parsing, structured Gemini responses, targeted rewrites, job matching, and PDFKit exports.
- Backend & authentication: Express APIs, Mongoose, ownership checks, JWT, rotating refresh tokens, and request limits.
- Billing integration: Stripe Checkout, a billing portal, and signed webhooks.
Browser speech APIs, Gemini interview questions and answer feedback, Clerk authentication, and saved sessions with Drizzle and Neon PostgreSQL.
Open the experience ↗ · Explore code ↗
React Three Fiber scenes, GSAP scroll choreography, responsive layouts, and Prismic content integration.
| Area | Technologies I use |
|---|---|
| Languages & interfaces | TypeScript · JavaScript · Python · React · Next.js · Tailwind CSS · shadcn/ui |
| APIs & authentication | Node.js · Express · FastAPI · Pydantic · JWT · Clerk |
| Data & persistence | PostgreSQL · MongoDB · SQLAlchemy · Alembic · Drizzle · Mongoose |
| AI & retrieval | Gemini API · embeddings · Qdrant · RAG · structured AI responses |
| Motion & visualization | GSAP · Motion · Three.js · React Three Fiber · Recharts |
| Product integrations | Stripe · Prismic · PDFKit · Git · Vercel |
- Useful AI: feedback someone can act on, with source references or fallbacks where the workflow needs them.
- Complete workflows: authentication, saved progress, loading states, and error handling deserve as much attention as the main feature.
- Intentional interaction: motion should explain a transition, guide attention, or add personality to a well-structured interface.
Interested in AI products, learning tools, or a web experience with personality? Let's connect.