# Prathmesh Vhatkar — Full Stack & AI Engineer

> Full Stack & AI Engineer in Pune, India, building production AI SaaS, LLM tools, and web platforms with Next.js, TypeScript, Python, PostgreSQL, and AWS.

## Quick Links
- [About](https://psv2522.com/about): Engineering background, technical philosophy, and experience
- [Contact](https://psv2522.com/contact): Verified contact channels, meeting scheduling, and location
- [Privacy Policy](https://psv2522.com/privacy): Privacy practices and analytics disclosures
- [Resume (PDF)](https://drive.google.com/file/d/18XrsPBJRa2Q7mJ1KPTecsp7tJKeAYsQQ/view?usp=sharing): Up-to-date resume
- [Schedule a Call](https://cal.com/psv2522/15min): Free 15-minute intro meeting
- [LLMs.txt](https://psv2522.com/llms.txt): Plain-text index for AI agents
- [Sitemap](https://psv2522.com/sitemap.xml): XML sitemap

## 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](/#work-clonio), [shipped serverless video infrastructure powering 18,000+ AI renders](/#work-clonio). I have created [pixel-perfect UIs working with a design team at Proofofskill as a Frontend Engineer](/#work-proof-of-skill) before, and [contributed four merged PRs to Roo Code](/#open-source). I studied computer engineering at [COEP Technological University](/#education).

## Work Experience

### Clonio — Full Stack Engineer
**Period:** September 2025 - June 2026 (Remote)

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
**Period:** May 2025 - September 2025 (Mumbai, India · On-site)

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
**Period:** January 2025 - May 2025 (Remote)

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.

## Featured Projects

### ChatUI (2024 to Present)
**URL:** [https://chat.psv2522.com](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/](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 Contributions

### Roo Code (4 merged PRs)
**Repository:** [https://github.com/RooCodeInc/Roo-Code](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.

## Technical Skills

### Frontend
React, Next.js, TypeScript, JavaScript, TailwindCSS

### Backend & Data
Node.js, Python, Java, PostgreSQL, Redis, Prisma, Drizzle, tRPC, Stripe

### AI & LLM
LangChain, Vercel AI SDK, OpenAI, Anthropic, Replicate, MCP

### Cloud & DevOps
AWS, Docker, Vercel

## Education

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

## Contact & Social Profiles

- **Email:** [psv2522@gmail.com](mailto:psv2522@gmail.com)
- **Phone:** +91 9579733879
- **Location:** Pune, India (https://www.google.com/maps/place/pune)
- **GitHub:** [https://github.com/psv2522](https://github.com/psv2522)
- **LinkedIn:** [https://linkedin.com/in/psv2522](https://linkedin.com/in/psv2522)
- **X / Twitter:** [https://x.com/psv2522](https://x.com/psv2522)