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Jérémie GuilhermeJG

Jérémie Guilherme

Data Scientist

€400/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Jérémie

Passionate about Machine Learning and sports, I assist companies, startups, and sports clubs in data exploitation and the creation of AI-based solutions. My expertise primarily focuses on Natural Language Processing (LLMs, chatbots, AI assistants) and Computer Vision, but my passion for sports has also led me to develop advanced skills in sports data analysis.

Machine Learning:
- Training of supervised and unsupervised models
- Optimization of ML pipelines for real-world use cases (NLP, vision, sports)
- Evaluation, deployment, and performance monitoring of models

AI Development:
- Design of personalized chatbots
- Development of tailor-made AI solutions (AI assistants, planners, etc.)
- Training and deployment of Computer Vision models (Detection, Classification, Tracking).

Data Science applied to Football:
- Creation of detailed scouting reports
- Development of xG (expected goals) models
- Implementation of advanced KPIs for tactical analysis.

Data Engineering & Cloud:
- Database management (MongoDB, MySQL, PostgreSQL, Redis, SQLite)
- Deployment on AWS
- Development of scalable backends and APIs (FastAPI)

Languages: Python, JavaScript

Data Manipulation & Analysis: Pandas, NumPy
Data Visualization: Matplotlib, Seaborn
Machine Learning Modeling: Scikit-Learn
Databases: PostgreSQL, MySQL, SQLite, MongoDB, Redis

Fine-tuning and Training: PyTorch, TensorFlow, Keras

NLP: Hugging Face Transformers, LangChain, CrewAI, OpenAI, LLaMA, Mistral, Anthropic

Image Detection and Segmentation: YOLOv10, DINOv2, U-Net
Image Processing: OpenCV
Object Tracking: DeepSORT, SORT, ByteTrack

Football Data Sources: StatsBomb, Opta, Wyscout

Cloud Platforms: AWS (S3, Lambda, SageMaker, EC2)

Frontend: React.js, Next.js
Backend: FastAPI, Django
  • French

    Native or bilingual

  • English

    Fluent

  • Spanish

    Conversational

  • Portuguese

    Conversational

Remote only
Primarily works remotely

Experience

  • Bravour
    AI Tools / LLM Developer
    E-COMMERCE
    May 2025 - Today (1 year and 1 month)
    Eindhoven, Netherlands
    Responsibilities:
    - Development of tools based on language models (LLMs) to automate business tasks such as generating product descriptions, blog posts, or personalized conversational assistants.
    - Design of a centralized platform integrating these tools, including frontend, backend, and deployment infrastructure development.
    - Integration and orchestration of LLM models with proprietary data, while ensuring the robustness, security, and scalability of services.

    Skills:
    - Mastery of backend and frontend technologies (Python, FastAPI, Next.js) for developing complete systems.
    - Expertise in using language models (LLMs) and prompt engineering for concrete use cases.
    - Experience in cloud computing and deploying services via AWS (Lambda, API Gateway, etc.).
    Python Langchain FastAPI LLM AWS
  • Aztec DH
    Data Scientist
    SPORTS
    February 2024 - April 2025 (1 year and 2 months)
    Eindhoven, Netherlands
    Responsibilities:
    - Creation of detailed scouting reports for player performance analysis.
    - Development and training of xG (expected goals) models to evaluate scoring probabilities in various game situations.
    - Creation of KPIs (Key Performance Indicators) to analyze and improve specific tactical scenarios.

    Skills:
    - Expertise in data science and statistical modeling.
    - Advanced knowledge in sports performance analysis.
    - Ability to create and interpret complex metrics.
    Data science Python wyscout statsbomb Machine learning
  • Free Mobile
    Radio Engineer
    TELECOMMUNICATIONS
    November 2017 - December 2021 (4 years and 1 month)
    Paris, France
    Responsibilities:
    - Design of radio networks for indoor and outdoor environments, planning and coverage modeling.
    - Performing initial settings to ensure optimal performance of radio systems.
    - Continuous optimization of radio networks to improve signal quality using data analysis and specialized tools.

    Skills:
    - Expertise in radio engineering.
    - Experience in network optimization.
    - Analytical and problem-solving skills.

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Education

  • Engineering degree in Electronics
    Bordeaux National Higher School of Electronics, Computer Science and Radio Communications
    2015

Certifications

Skill set

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