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Omar LalmicheOL

Omar Lalmiche

AI Engineer | LLM, RAG Systems, Chatbots

€250/day
Paris, FR
0-2 years

Average response time: 1 hour

About Omar

AI Engineer specialized in LLM applications, Retrieval-Augmented Generation (RAG), and intelligent automation.

I design and deploy AI systems that transform data into actionable insights and scalable products. My expertise includes building LLM-powered applications, AI chatbots, and data pipelines for real-world business use cases.

Currently working as an AI Engineer intern at Institut Pasteur, I develop machine learning solutions applied to biomedical and speech datasets, combining advanced modeling with production-ready engineering.

Core expertise:
• Large Language Models (LLM) integration
• Retrieval-Augmented Generation (RAG)
• Vector Databases (FAISS, Pinecone, Chroma)
• AI Chatbots & Conversational Agents
• Python / Machine Learning / NLP
• Data pipelines & automation
• API integration and backend systems

Tech stack:
Python • PyTorch • TensorFlow • LangChain • OpenAI API • Hugging Face • Docker • Git • SQL

What I can help you build:
• AI chatbots and assistants
• Knowledge-base search systems (RAG)
• AI automation workflows
• Custom ML/NLP solutions
• Data analysis and predictive models

If you're looking to integrate AI into your product or automate complex processes, I can help you design robust and scalable solutions.
  • French

    Native or bilingual

  • English

    Native or bilingual

Can work on-site
Paris (up to 50km)

Experience

  • Institut Pasteur
    AI Engineer – Medical AI Systems
    RESEARCH
    March 2026 - Today (5 months)
    Paris, France
    - ENTIA medical chatbot: developed a conversational assistant for ENT physicians (RAG/LightRAG) with multi-agent orchestration (router + specialized agents), a knowledge graph, and BGE-reranker-v2-m3
    - ORL-Bench — selecting the best model & RAG for ENTIA: full-stack platform (React, NestJS, FastAPI) to train, test, and compare LLMs on 600 clinical cases; goal: choose the optimal configuration to integrate into the ENTIA product
    - Evaluation & POC: RAG pipeline (FAISS, embeddings, jina-reranker); comparison of 3 strategies (direct / RAG / RAG+rerank); automated KPIs (scientific_score), export to JSON/PDF/JSONL; validation on 30 cases (100% pass rate)
    - Multi-LLM integration: connected multiple models (Mistral, Gemini, DeepSeek, Qwen, OpenAI) via LiteLLM; prompt engineering and performance comparison to guide deployment decisions
    - MLOps & industrialization: Docker/Kubernetes, GitLab CI/CD (Kaniko/Harbor), Redis/RQ async jobs, JWT auth, circuit breaker; technical documentation and feedback sessions with domain experts
    Vector DB knowledge base search Langchain Retrieval-Augmented Generation (RAG) Chatbot IA
  • OCP & YouCode
    Full-Stack Developer / Data Analyst
    RETAIL (LARGE RETAILERS)
    May 2024 - September 2024 (4 months)
    Morocco
    • • End-to-end application design using UML, wireframes and system architecture
    • • Web development using React and Node.js
    • • Implementation of REST APIs and MySQL databases
    • • Automation of data pipelines connecting APIs, databases and Power BI
    • • Development of decision dashboards with business KPIs
    • • Collaboration using Git/GitHub in Agile environment
    React.js Node.js Python JavaScript MySQL
  • OCP Group
    AI Data Analysis Pipeline - Predictive Maintenance
    RAW MATERIALS INDUSTRY
    June 2023 - September 2023 (3 months)
    Morocco
    • • Data preprocessing and analysis using Pandas and NumPy for maintenance my purposes.
    • • Feature engineering and predictive modeling in Python
    • • Implementation of Random Forest and Logistic Regression
    • • Model evaluation using statistical performance metrics
    • • Data visualization using Matplotlib
    Microsoft Power BI Random Forest Machine learning Deep Learning ETL (Extract, Transform, Load) Processes

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Education

  • Master M2
    University of Lille
    2026
    Master M2
  • Master M1 –
    ESISA
    2025
    Master M1 –

Skill set

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