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Sameer Singh — AI Engineer — RAG & Agentic Systems. I build AI that ships, not just demos

Sameer Singh

AI Engineer — RAG & Agentic Systems

M.Sc. Data Science candidate at IIIT Lucknow, currently a Data Analyst intern at Obel Systems. I build retrieval-augmented and agentic AI systems — grounded RAG pipelines, MCP-connected agents, and fine-tuned deep learning models — that stay honest about what they actually know.

About me Get in touch

Work
Experience

what i've
done
  1. 2026-Present

    Obel Systems Pvt. Ltd.

    Remote

    Data Analyst Intern

    Climate AI pipelines
    Data pipelines for structured/unstructured climate data powering LLM-assisted reporting and semantic search.

  2. 2026-Present

    IIIT Lucknow

    Lucknow, India

    Teaching Assistant

    Data Science & AI
    Assists students with coursework, assignments, and technical problem solving.

  3. 2018-22

    NCC Air Wing

    India

    Flight Cadet

    Leadership and discipline through structured cadet training.

Technical
Skills

things i can do
  • RAG & Retrieval 9
  • Agentic AI / LangGraph 8
  • Deep Learning (PyTorch) 8
  • Prompt Engineering 9
  • MCP / Tool Use 8

Tech
Stack

  • Python
  • FastAPI
  • LangChain
  • Gemini
  • ChromaDB
  • Docker
still mastering
the craft

Hobbies &
Interest

  • Aviation
  • 🍵Tea
  • 📚Reading ML Papers
  • 🎓Teaching
  • 🧩Problem Solving

Random
Facts

  • 121+

    Automated tests passing across shipped projects

  • 90%

    Peak model accuracy (fine-tuned ResNet50 X-ray classifier)

  • 4

    AI/agentic systems designed and shipped

  • 3+

    Hackathon & challenge builds (Google Cloud, Redrob, and more)

Selected

Projects

01

Saarthi AI

Agentic AI

A proactive commute-planning agent for Lucknow. It simulates future departure windows, fuses traffic, weather, festival, and event risk into a deterministic score, and uses MongoDB MCP as agent memory over commute history. Built for the Google Cloud Rapid Agent Hackathon, MongoDB Partner Track.

  • Google ADK
  • Gemini
  • MongoDB Atlas
  • MongoDB MCP
  • FastAPI
  • TomTom API
  • 121 tests passing
  • Deterministic 0-100 risk score
  • MCP tools: find, aggregate, list-collections
02

Scholar_Mate AI

RAG System

An end-to-end RAG system for document-grounded Q&A over typed, scanned, and handwritten PDF notes. OCR fallback covers messy scans; strict grounded prompting keeps answers faithful to the uploaded material instead of hallucinating.

  • FastAPI
  • ChromaDB
  • SentenceTransformers
  • LangChain
  • PaddleOCR
  • Gemini / OpenAI
  • OCR fallback for handwritten notes
  • Grounded, hallucination-resistant answers
  • Auto-generates summaries, MCQs, viva Qs
03

RecruitRank AI

Ranking Engine

A hybrid candidate-ranking engine built for the Redrob Data & AI Challenge. Scores candidates on semantic match, career evidence, and behavioral signals instead of keyword matching, producing an auditable top-100 shortlist.

  • Python
  • TF-IDF + SVD
  • pandas
  • SentenceTransformers
  • Weighted 6-factor scoring model
  • Deterministic, CPU-only, no external APIs
  • Ranked top-100 shortlist output
04

Chest X-Ray Classifier

Computer Vision

A pneumonia classifier fine-tuned from ResNet50 with transfer learning, differential learning rates, and data augmentation, with Grad-CAM visualizations for interpretability.

  • PyTorch
  • ResNet50
  • Transfer Learning
  • Grad-CAM
  • 90.1% accuracy (up from 66.7%)
  • 96% recall / 89% precision
  • 0.9647 ROC-AUC