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Rexon-Pambujya/README.md

Hi πŸ‘‹, I'm Rexon Pambujya

AI / ML Engineer β€’ ML Models β€’ LLM Systems β€’ Python β€’ Agentic AI β€’

🌐 Portfolio β€’ LinkedIn β€’ GitHub


πŸ‘¨β€πŸ’» About Me

I'm an AI/ML Engineer focused on building and deploying practical AI systems.

  • πŸ€– Agentic AI, LLMs & RAG
  • 🧠 Machine Learning & NLP
  • ⚑ FastAPI, Python & SQL
  • πŸ”— LangChain & LangGraph
  • πŸ› οΈ AI APIs, automation & backend systems
  • ☁️ Docker, AWS & deployment
  • πŸ“Š LLM evaluation, reliability & observability

πŸš€ Featured Projects

TalentLens AI

AI-assisted candidate intelligence for recruiters: upload resumes, extract structured candidate profiles, score them against a job's requirements across five weighted dimensions (skills, semantic relevance, experience, education, projects), and get a recruiter-readable explanation of why a candidate is fit.

🩺 CareDocAI

Medical document & consultation intelligence using Faster-Whisper, Groq, Pydantic, FastAPI and Docker.

🌦️ RagLangWeather

Agentic weather assistant built with LangGraph, tools, retrieval and LangSmith.

Expertise Fraud Detection System

proof-of-concept for detecting potential expertise fraud in candidate profiles using machine learning, reinforcement learning, and workflow orchestration. This system analyzes profile histories, screening answers, and web signals to identify suspicious claims, providing explainable decisions for hiring processes.

πŸ›‘οΈ AI Fraud & Risk Agent

Multi-agent fraud/risk analysis system using CrewAI, FastAPI, PostgreSQL, Redis and Celery.

πŸ“„ Enterprise RAG

Production-oriented document QA with vector search, RBAC, retrieval evaluation and grounded generation.


πŸ› οΈ Tech Stack

Languages: Python β€’ SQL β€’ JavaScript

AI/ML: PyTorch β€’ Scikit-learn β€’ Pandas β€’ NumPy

GenAI: LangChain β€’ LangGraph β€’ RAG β€’ LLMs β€’ Agentic AI β€’ LoRA/PEFT

Backend: FastAPI β€’ Flask β€’ Pydantic

Databases: PostgreSQL β€’ MySQL β€’ Qdrant β€’ FAISS β€’ pgvector

DevOps: Docker β€’ AWS β€’ GitHub Actions β€’ Git

Automation: n8n β€’ Streamlit β€’ LangSmith


✍️ Writing

Mental Model for Designing Production-Ready Agentic AI Systems Medium

Exploring agent orchestration, tools, memory, evaluation, reliability, monitoring and governance.


Building intelligent systems that are useful, reliable and production-ready.

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  1. Diabetes_Prediction_Streamlit Diabetes_Prediction_Streamlit Public

    A machine learning webapp created using Streamlit to predict the onset of diabetes based on diagnostic measures

    Jupyter Notebook 2

  2. PlaceVisitPicker PlaceVisitPicker Public

    Place Picker project provides a UI that displays an interactive web app to get the place details and Autocomplete functionality, that displays place predictions based on users' current location input.

    JavaScript

  3. projectManagementApp projectManagementApp Public

    A simple user-friendly Project Management application using React that allows users to create and manage projects and tasks efficiently.

    JavaScript

  4. OTP-LOGIN-SYSTEM-SHA256 OTP-LOGIN-SYSTEM-SHA256 Public

    An OTP-based login system developed using Java and Swing.

    Java

  5. reactEssentials reactEssentials Public

    Simple react web app which makes use of Component, State, props.

    JavaScript