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Experience, background, and current focus.
I'm Jay Rajshakha, a full stack engineer based in Gujarat, India. I build products at the intersection of software engineering and financial intelligence. I don't just write code, I understand the business layer most engineers skip.
Building core product UI and backend services for an expert marketplace, discovery flows, booking interfaces, expert profiles, and escrow-style payment processing via Paypal. Built a shared component library that cut per-feature build time significantly. Working full-stack across Next.js, TypeScript, Node.js, and PostgreSQL. Direct collaboration with the founder and CTO.
Built and shipped Finovian a US semiconductor stock analysis platform with a falsifiable prediction schema and public Track Record system. Built WealthifyX with 8 production financial calculators and a live AI agent (wealthifyx.com/ai) that executes tool-calling via RAG pipeline with structured output. Both fully deployed and monetized.
AI-driven web app with streaming API responses, GCP + AWS cloud storage, and OAuth authentication. Built the full frontend in Next.js with Styled Components — real-time streaming UI, file uploads to cloud storage, and session-based auth flows.
Architected a vertical OTT platform for short-form entertainment. Built the React Native app (iOS + Android) and backend infrastructure with Express, Node.js, Prisma, and Supabase. Implemented secure MP4 chunk streaming integrated with AWS and GCP buckets.
Rebuilt the stock platform UI from scratch, modern design overhaul, deep performance tuning, and complex auth flows. Maintained frontends for multiple client web apps using React and Next.js.
Yes, I am currently open to senior frontend or full-stack engineering roles, especially those involving AI integration, Next.js, and complex financial or data-heavy products.
I take on select freelance contracts depending on my current bandwidth. If you have an interesting product problem, feel free to reach out.
I specialize in React, Next.js, and TypeScript on the frontend, with Node.js and PostgreSQL on the backend. I also have deep experience building AI pipelines and RAG architectures.
The best way to reach me is via email. You can also find me on: