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medlouaynjima/README.md

Hi, I'm Mohamed Louay Njima

profile avatar

AI Engineer building production-oriented LLM, RAG, agentic AI, ML, and data systems.

I build end-to-end AI products from experimentation to deployment, with a focus on reliable LLM applications, retrieval systems, and data-driven decision tools.

Connect

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Skills

Python SQL Machine Learning NLP LangChain LangGraph LlamaIndex FastAPI Docker MySQL


GitHub Stats

streak stats


Featured Projects

PFE-Project

Multi-agent insurance claims assistant combining LLMs, RAG, and NL2SQL to provide accurate, context-aware answers from business data.

Focus: Multi-agent AI • RAG • SQL generation • Customer support automation

Risk_Management_Recommender

AI-powered recommendation system for risk assessment using graph-based reasoning and semantic retrieval to support decision-making.

Focus: Graph AI • Recommendation systems • Knowledge graphs • Risk analytics

Living-Sentiment-Engine-pipeline

Financial sentiment analysis pipeline with model tracking, retraining workflows, monitoring, and API serving for production use.

Focus: NLP • MLOps • Fintech AI • Deployment

Intrusion-Detection

Machine learning system for detecting abnormal network traffic and suspicious activity patterns.

Focus: Anomaly detection • Cybersecurity • ML


Open Source

I contribute to projects at the intersection of Python, AI, LLMs, retrieval systems, and data engineering.

  • LlamaIndex — contributed to document update behavior and safer async reference handling.
  • VaultRAG — contributed an embedding-dimension validation fix to avoid incompatible embeddings reaching vector storage.

I’m especially interested in open-source work around LLM applications, RAG, agent frameworks, and practical ML tooling.


Experience

AI Engineer Intern — GHM Consulting

Claim management multi-agent system

  • Built a conversational multi-agent assistant for health insurance claim handling, enabling natural-language access to policy and reimbursement data.
  • Developed a reliable SQL-generation layer for structured, secure querying over business data.
  • Improved system responsiveness and observability through embedding caching and dynamic model routing.
  • Integrated the solution in a web interface for end-user interaction and business use.

02/2025 – 08/2025

Data Scientist Intern — PwC

Fraud detection and anomaly monitoring

  • Developed anomaly detection models for payment transactions to flag suspicious activity and reduce merchant fraud.
  • Served the model through a FastAPI application in Docker for continuous transaction scoring.
  • Prioritized alerts using SHAP-based interpretation and recall-focused business evaluation.

07/2024 – 08/2024

AI Research Intern — TenStep

Document intelligence and risk prioritization agent

  • Built a document-search agent for internal project-risk prioritization using semantic retrieval and knowledge-graph techniques.
  • Compared traditional RAG and GraphRAG patterns to improve answer quality and reliability.

Education

ESPRIT — École Supérieure Privée d’Ingénierie et de Technologies

Engineering Degree in Computer Science

Specialization: Data Science
Graduated with very good mention


Building AI systems, contributing to open source, and learning by solving real problems.

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  1. Risk_Management_Recommender Risk_Management_Recommender Public

    Risk Management Recommendation System An AI-powered recommendation system for risk management using GNN and LLM. It features a knowledge graph of risk concepts and a semantic similarity search to g…

    Jupyter Notebook 2 1

  2. Living-Sentiment-Engine-pipeline Living-Sentiment-Engine-pipeline Public

    Production-grade MLOps pipeline for financial news sentiment analysis using FinBERT, featuring automated retraining, drift monitoring, MLflow tracking, DVC pipelines, FastAPI serving, and Dockerize…

    Python

  3. PFE-Project PFE-Project Public

    Intelligent multi-agent chatbot for insurance claims and customer support, built with LangGraph and LangChain. Combines NL2SQL and RAG for accurate, context-aware responses, with robust memory mana…

    Python

  4. modern-data-platform modern-data-platform Public

    Python

  5. Intrusion-Detection Intrusion-Detection Public

    The Network Intrusion Detection System (IDS) project aims to develop an efficient, scalable solution for detecting and mitigating security threats in network traffic. By applying machine learning t…

    Jupyter Notebook

  6. Tunisia-Electricity-Analysis Tunisia-Electricity-Analysis Public

    Why did Tunisia's grid collapse under a 47°C heatwave? A full data science pipeline analyzing 22,000 hours of synthetic grid data to forecast demand, predict blackouts, and model intervention ROI.

    Jupyter Notebook