# Prathmesh Vhatkar

> Full Stack & AI Engineer in Pune, India. Builds production AI SaaS,
> LLM tools, and web platforms with Next.js, TypeScript, Python,
> PostgreSQL, and AWS. Open to freelance projects and full-time roles.

## About

I love designing systems, building features especially for AI enabled products. I'm a Full Stack
Engineer who can ship across Frontend/Backend/Cloud/AI. I've operated an AI SaaS serving 10,000+
users and 2,000+ paid subscribers, shipped serverless video infrastructure powering 18,000+ AI
renders. I have created pixel-perfect UIs working with a design team at Proofofskill as a Frontend
Engineer before, and contributed four merged PRs to Roo Code. I studied computer engineering at COEP
Technological University.

## Contact

- Email: psv2522@gmail.com
- Phone: +91 9579733879
- Book a call: https://cal.com/psv2522/15min
- Resume: https://drive.google.com/file/d/18XrsPBJRa2Q7mJ1KPTecsp7tJKeAYsQQ/view?usp=sharing

## Profiles

- GitHub: https://github.com/psv2522
- LinkedIn: https://linkedin.com/in/psv2522
- X: https://x.com/psv2522

## Experience

### Clonio — Full Stack Engineer

Remote · September 2025 - June 2026

Sole Full Stack Engineer on a production AI SaaS platform built with TypeScript, React, Next.js,
tRPC, Drizzle ORM, and PostgreSQL — serving 10,000+ users and 2,000+ paid subscribers.

- Reduced active CPU time by 95% by replacing polling with signed Replicate and RunPod webhooks, using TanStack Query for asynchronous generation-job tracking.
- Built serverless video infrastructure with AWS Lambda, Remotion, Amazon S3, and CloudFront, powering 18,000+ AI video renders with private assets and signed CDN delivery.

### Proof of Skill — Frontend Engineer

Mumbai, India · On-site · May 2025 - September 2025

Built candidate recording and recruiter screening workflows for a skills-based hiring platform.

- Migrated candidate screen and camera recording from direct Amazon S3 uploads to Amazon IVS using TypeScript, AWS SDK, IVS Web Broadcast SDK, and Zustand — adding per-assignment channels and upload retries.
- Built a swipe-based recruiter application with Next.js 15, React 19, Framer Motion, and TanStack Query — delivering responsive candidate screening, comparison, and contact workflows from Figma designs.

### Freelance AI & GovTech — Full Stack Engineer

Remote · January 2025 - May 2025

Delivered an AI-first productivity client and a government event operations platform.

- Built an AI-first email and calendar client with Next.js, TypeScript, Gmail API, Google Calendar and Meet APIs, Gemini, PostgreSQL, Drizzle ORM, and pgvector — enabling inbox RAG, AI replies, and integrated scheduling.
- Delivered a role-based FIFA accreditation platform with React, Prisma, Better Auth, S3-compatible storage, Canvas, and Sharp — generating 1,500+ printable IDs for Government of Meghalaya event operations.

## Education

- Bachelor of Technology in Computer Engineering, COEP Technological University (2020 - 2024) — https://www.coeptech.ac.in/

## Projects

### ChatUI (2024 to Present)

URL: https://chat.psv2522.com

Built and operated a production BYOK AI chat application using Next.js 15, React, TypeScript,
OpenAI, Anthropic, Gemini, and Serwist, serving 800+ users with streaming responses and PWA support.
Implemented 5-member team workspaces using Auth.js, Prisma ORM, Supabase PostgreSQL, TanStack Query,
Zustand, and Server-Sent Events, enforcing authorization and synchronizing conversations across
browser tabs.

Technologies: Next.js 15, React, TypeScript, OpenAI, Anthropic, Gemini, Serwist, Auth.js, Prisma, Supabase PostgreSQL, TanStack Query, Zustand, Server-Sent Events, PWA

### StockGPT (2025)

URL: https://github.com/psv2522/StockGPT/

Built an AI-assisted stock-analysis CLI using Python, LangChain, Gemini 3 Flash, yfinance, Plotly,
and OpenAI-compatible APIs, enabling tool-driven exploration and visualization of 125+ stock
metrics.

Technologies: Python, LangChain, Gemini 3 Flash, yfinance, Plotly, OpenAI-compatible APIs

## Open Source

### Roo Code (4 merged PRs)

URL: https://github.com/RooCodeInc/Roo-Code

Contributed 4 merged React and TypeScript PRs to Roo Code, eliminating settings overflow and
standardizing dropdown and chat-input states for a theme-consistent VS Code AI assistant with 24k+
GitHub stars and 1 million+ downloads.

## Skills

React, Next.js, TypeScript, JavaScript, TailwindCSS, Node.js, Python, Java, PostgreSQL, Redis, Prisma, Drizzle, tRPC, Stripe, LangChain, Vercel AI SDK, OpenAI, Anthropic, Replicate, MCP, AWS, Docker, Vercel