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Raj Chhapariya

@rajchhapariya

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I build reliable AI, data, and full-stack products, from RAG systems to transactional platforms.

India

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What I'm looking for

I'm looking to build reliable AI and data products, especially RAG systems, analytical tools, and full-stack applications with measurable guardrails for accuracy and safety.

I've built Agentic RAG Knowledge Assistant, a retrieval-augmented system that plans queries, checks evidence quality, retries weak retrieval, and cites every supported answer. I also created an evaluation framework for retrieval accuracy, citation quality, hallucination rate, and cost, backed by 87 automated tests.

For an AI Data Analyst Agent, I built fixed SQL, charting, statistics, and clarification tools to answer dataset questions safely. I added read-only SQL, deterministic numerical-claim verification, CSV profiling, interactive charts, and report export through Streamlit.

I'm also building Truly, an intentional social video platform, and Resume Roaster, an AI-powered resume tool. My work spans Python, SQL, TypeScript, PostgreSQL, DuckDB, Next.js, and OpenAI-powered systems.

Experience

Work history, roles, and key accomplishments

Current

Founder & Developer

Current

Resume Roaster

Jul 2026 - Present (3 months)

Built and launched an AI-powered resume tool using Next.js, TypeScript, Supabase with Row Level Security, and OpenAI API, featuring a spatial ATS parser, zero-duplicate action verb rewriter, and ATS-safe PDF export.

Next.js TypeScript Supabase PostgreSQL Row level security OpenAI API ATS Parser PDF Export

Current

Founder & Full-Stack Engineer

Current

Truly

Apr 2026 - Present (6 months)

Architected an intentional social video platform for young urban Indians with structured 60-min circles, double-blind matching, and Neon PostgreSQL with Drizzle ORM. Implemented pessimistic row-locking to eliminate overbooking and Transactional Outbox event processing.

Panda CSS Neon PostgreSQL Drizzle ORM UUIDv7 Transactional Outboxes Row Level Locking

Restaurant Owner & Operator

Independent Restaurant

Jan 2025 - Jul 2025 (6 months)

Owned and operated an independent restaurant for six months, managing staff operations, budgeting, menu pricing, supplier negotiations, and vendor relationships.