Where AI engineering meets real product delivery

Vaishnavi Jaiswal portrait

I'm an AI/ML engineer with production experience building LLM systems, RAG pipelines, and autonomous agents. At Difmo I shipped AI-assisted features end-to-end — prompt engineering, vector integration, QA, and deployment — on PressHop, a live platform serving 200K+ monthly active users, and delivered domain-grounded RAG assistants for legal and infrastructure clients. I work across the full AI engineering stack: retrieval optimization, vector databases, and LLM integration with OpenAI, Gemini, LangChain, and self-hosted local models. Currently pursuing my B.Tech in Computer Science at Uttaranchal University, Dehradun.

AI / LLM

RAG Architecture LangChain LangGraph OpenAI API Gemini API Qdrant Vector Search Prompt Engineering AI Agents mem0 · Neo4j FastAPI Ollama

Programming

Python JavaScript React Flutter / Dart HTML / CSS Java

Dev Tools

Git / GitHub Firebase Vercel Figma REST APIs Linux
  • Expected 2029
    B.Tech, Computer Science
    Uttaranchal University, Dehradun
  • 2024 – 25
    Class XII (Science)
    Lucknow Public School · 81.2%
  • 2022 – 23
    Class X
    Lucknow Public School · 87.8%

Languages

English — Fluent Hindi — Fluent

Selected work — AI & LLM systems

Retrieval pipelines, agents, and production apps I've built and shipped — each link opens the live repo or project.

AI Engineering

RAG Document Q&A Pipeline

Ingests PDFs, chunks them, generates OpenAI embeddings, and retrieves grounded answers via a Qdrant vector database.

PythonLangChainOpenAIQdrant
View on GitHub
AI Engineering

Tool-Calling AI Agent

An agent that follows a start → plan → action → observe loop, selecting and executing tools with strict structured JSON output.

PythonOpenAIPydantic
View on GitHub
AI Engineering

Memory-Aware Chatbot

Remembers facts across sessions using mem0 for memory, Neo4j as a graph store, and Qdrant for vector search — personalized, context-aware replies.

mem0Neo4jQdrantOpenAI
View on GitHub
AI Engineering

Stateful LLM Agent

Graph-based query routing with MongoDB-backed conversation state and multi-step orchestration across tools and sub-chains.

LangGraphLangChainMongoDB
View on GitHub
AI Engineering

Local LLM API Server

FastAPI wrapper around a self-hosted Ollama / Gemma 3 model, enabling private on-device LLM inference behind a clean REST interface.

FastAPIOllamaGemma 3
View on GitHub
Web App

Code Journey — Learning Tracker

Multi-user learning tracker built on Firebase with PIN-separated profiles and progress that persists across sessions. Live in production.

JavaScriptFirebaseVercel
View on GitHub
PressHop app preview
Production · Difmo

PressHop — AI Features in Production

Domain-grounded RAG for content discovery plus AI-assisted features shipped end-to-end on a platform with 55K+ users and 200K+ monthly actives across 19 cities.

RAGPrompt EngineeringDifmo Pvt. Ltd.
Visit PressHop
See more on GitHub

On-the-ground impact

AI & Product Engineer

Jan 2026 – Jun 2026

Difmo Pvt. Ltd. · Lucknow, India

PressHop 55K+ users · 200K+ monthly active · 19 cities (UK, USA, India)
  • Built domain-grounded RAG systems for content discovery, grounding LLM responses in PressHop's knowledge base and reducing hallucination on live product queries.
  • Shipped AI-assisted product features end-to-end — prompt engineering, vector integration, QA, and deployment on a live, scaling platform.
  • Led technical troubleshooting, regression testing, bug triage, and build validation during rapid feature releases.
  • Owned the full product lifecycle — requirements gathering → architecture → implementation → stakeholder reporting.

Additional client deployments (via Difmo)

Sajjad Husain Law Associates

LegalTech RAG platform for case law, judgments and multilingual legal discovery — 50K+ monthly visitors, 10K+ legal professionals.

Algoritham Infrastructure

Enterprise RAG assistant over a 1,200+ delivered-project knowledge base spanning cloud, cybersecurity, networking and telecom documentation.

Tylax Construction Chemicals

Designed and deployed a responsive product website covering 6 categories: waterproofing, adhesives, admixtures, grout, decoratives, and tile & stone care.

Let's build something great together

Got an LLM feature to ship, a RAG pipeline to build, or an AI product that needs to reach production? I'm open to freelance work, collaborations, and full-time roles.

vaishnavijaiswal.work@gmail.com +91 8353945347 Lucknow, India