Vaibhav Saini
Next.js | TypeScript | React | Node.js | REST APIs | Databases
Product ideas turned into working software across interface, API, data, and AI layers. Each project here documents its architecture decisions, tradeoffs, and source code so the work speaks for itself.
Vaibhav Saini
Delhi, India
Value snapshot
About
Focus areas
Connecting product intent with implementation details: clear user flows, secure access, maintainable APIs, practical data models, and AI-assisted behavior.
Each project here is built with Next.js, TypeScript, Node.js, databases, authentication, and AI API integrations — with documented decisions behind every technical choice.
The work demonstrates how data is modeled, routes are protected, APIs are shaped, fallbacks are handled, and features are made understandable to both users and engineers.
Product-minded engineering, shown in code
A focused set of builds covering AI workflows, backend/API depth, authentication, data modeling, and user-facing product behavior.
An AI-powered notes workspace featuring authenticated product workflows, user-owned data, public sharing, analytics, and AI-assisted editing.
Notiq
AI-Powered Notes Workspace
- Delivered a Markdown notes workspace with live preview, autosave, public sharing, tag filters, search, and dashboard analytics.
- Engineered 3 Gemini-powered endpoints for summaries, action items, and title suggestions with traceable per-user usage logging.
- Implemented credential authentication, protected routes, and user-scoped data isolation across 10+ API routes.
- Designed normalized note, tag, sharing, and AI usage schemas with Prisma migrations and many-to-many relationships.
An audit tool that turns AI tool inventories into traceable optimization recommendations, combining deterministic rules with resilient LLM-generated summaries.
StackAudit
AI Spend Audit Platform
- Built a rules-based audit engine that generates 12-15 optimization recommendations from AI tool inventories.
- Designed a fallback LLM summary pipeline using Claude, OpenAI, and template-based generation for resilient output.
- Implemented Supabase-backed persistence, public report URLs, OpenGraph previews, and lead capture via REST endpoints.
- Added honeypot spam prevention, request throttling, responsive UI, and SEO metadata to support credible public-facing workflows.
A backend-focused platform covering API contract design, route protection, input validation, endpoint documentation, and frontend consumption.
NexaAPI
REST API Platform with Auth and RBAC
- Developed versioned REST APIs with controller-service-model separation, global error handling, pagination, and task filtering.
- Implemented JWT authentication, password hashing, protected routes, and role-based access for user/admin workflows.
- Hardened APIs with Helmet, CORS allowlisting, request validation, rate limiting, and Swagger/OpenAPI documentation.
- Built a React frontend with auth context, protected routes, toast feedback, and Axios authorization interceptors.
Other Projects
Additional builds that show breadth across collaboration, commerce, auth, and testing workflows.
Orbit
Real-time collaboration and RBAC patterns
VibePerfume
Product browsing and commerce UI flows
StackAuth
Auth-first API design with PostgreSQL
CRM QA Automation
Automated testing and API contract coverage