Devarsh Prajapati.

Computer Science @ York University · AI Engineer

I build AI agents that actually ship.

I build multi-agent systems, custom MCP servers, and RAG pipelines — and put them in front of real users, not just in notebooks.

Toronto, ON Automators Lab · AI/ML Intern May 2025 – Sep 2025

What I work with

Systems, retrieval, and what runs them.

Multi-Agent Systems

LangGraph and LangChain orchestration across specialized agents for call analysis, proposal generation, and task routing — over GPT, Claude, Gemini, and LLaMA.

RAG & Retrieval

Tree-sitter AST chunking into ChromaDB for cited, hallucination-resistant Q&A over codebases of up to 10,000 files.

Backend & Deployment

A 5-service backend on Railway with async SQLAlchemy and Celery, atomic Redis rate limiting, and 230+ automated tests behind it.

Selected work

Things I built & shipped.

SixRise homepage: ‘Gets Shopify merchants recommended by AI shopping assistants’, above a preview of the app running inside the Shopify admin

SixRise

PythonFastAPITypeScriptShopify Admin APIpgvectorRedis

A live Shopify embedded app that lifts merchant visibility inside AI shopping assistants — auditing catalog data, publishing grounded fixes, and measuring share-of-model against named competitors.

  • Eight-node async agent pipeline fans buyer-intent queries across Perplexity Sonar and OpenAI, parses cited brands, and computes per-engine share-of-model.
  • Grounded Optimizer with a negative-grounding guard and two-layer staleness gate — never fabricates attributes, and routes every Shopify Admin API write through preview/approval.
  • TypeScript/Python monorepo on Northflank, Neon, and Upstash Redis with split-schema ownership; fixed a connection-pool advisory-lock deadlock via transaction-bound session storage.
ContextCode dependency graph of the encode/databases repository, with files coloured by how many other files import them

ContextCode

FastAPICeleryChromaDBPostgreSQLRedisNext.js

A full-stack RAG system that indexes GitHub repositories for cited, hallucination-resistant Q&A across codebases of up to 10,000 files.

  • Tree-sitter AST parsing for function- and class-level chunking across Python, JavaScript, and TypeScript.
  • Cloudflare Turnstile plus atomic Redis dual rate limiting, per-session and global — a public zero-signup demo with bounded API spend and bot protection.
  • 5-service backend on Railway with async SQLAlchemy and SSE progress streaming, a Next.js frontend on Vercel, and 230+ automated tests.

AI Stock Insights

StreamlitTechnical IndicatorsEnsemble Models

ML-powered stock analysis with technical indicators and ensemble prediction models, served through a Streamlit dashboard.

RateFlix

Java SwingMySQLTMDB

A movie-review platform with authentication, watchlists, and TMDB integration, built in Java Swing over MySQL.

Experience

Where I’ve worked so far.

Automators Lab

AI/ML Intern

May 2025 – Sep 2025

  • Built multi-agent AI systems using LangGraph and LangChain for automated call analysis, proposal generation, and task orchestration across specialized agents, integrating GPT, Claude, Gemini, and LLaMA models.
  • Developed 10+ custom MCP servers connecting AI agents to external APIs, databases, and business applications, including tool design, authentication, and deployment.
  • Engineered Retrieval-Augmented Generation (RAG) pipelines for context-aware AI assistants and document-intelligence workflows, enabling knowledge retrieval over business data.
  • Created event-driven lead-generation automation with n8n, integrating LLMs, CRM platforms, and web scrapers to streamline prospect identification and reduce manual outreach effort.

About

A little more about me.

I’m a Computer Science student at York University, finishing in Dec 2026. Most of what I build sits where LLMs meet real infrastructure — agent pipelines that hold up in production, retrieval systems that cite their sources, and the unglamorous backend work that keeps both honest.

Education

York University — BSc. Honours in Computer Science

Toronto, ON · Expected Dec 2026

Coursework

Machine Learning, Artificial Intelligence, Data Structures & Algorithms, Databases, Operating Systems, Computer Networks, Software Design.

CS Hub — Computing Students’ Hub

Events & Academics Team, Toronto, ON

Contact

Get in touch — let’s build something.

The fastest way to reach me is email. I’m also on LinkedIn and GitHub.