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Hippolyte D.HD

Hippolyte D.

Data Engineer

€550/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Hippolyte

Data Engineer with 4 years of experience, I design and industrialize data pipelines.

🎯 What I can bring to you:

→ Design and industrialization of ETL/ELT data pipelines
→ Modeling, quality, governance, and observability of data flows
→ Migration and modernization of data architectures
→ Implementation of DataOps practices (testing, CI/CD, monitoring, documentation)

⚙️ Technical Stack

→ Data ........... Python (Polars, Pandas), Airflow, dbt, Spark
→ Backend .... Python (FastAPI, Pydantic), PostgreSQL, DuckDB
→ Cloud ......... GCP (BigQuery, Cloud Run, Composer, Scheduler)
→ Infra ............ Docker, CI/CD, Linux
  • English

    Fluent

  • French

    Native or bilingual

Can work on-site
Paris (up to 50km), Marseille (up to 50km), Lyon (up to 50km), Toulouse (up to 50km), Nice (up to 50km)

Experience

  • Sightness
    Data Engineer
    LOGISTICS AND SUPPLY CHAIN
    January 2022 - January 2025 (3 years)
    → Industrialization of data pipelines for various carriers. Process automation to reduce manual workload and increase productivity (ingestion, reporting, and monitoring). Design and development of an internal geographic normalization API consumed by several teams, resulting in -99% errors and continuous repository enrichment.

    → Technical scoping for migration to a Data Warehouse, led with the Data Director: documentation writing, user training on new tools, and Python skill development for the team.

    Tools: Microsoft Azure (SQL Database) – Python (Polars, FastAPI) – Power BI – Confluence
    Python SQL Microsoft Azure Microsoft Power BI Data Engineer
  • MSC Software
    Data Engineer
    SOFTWARE PUBLISHING
    January 2021 - January 2022 (1 year)
    → Redesign of architecture and migration of a data visualization application to a modern stack with integration of a machine learning prediction module: development, documentation, and production deployment.

    → Data POCs: development and production deployment of machine learning models (CNN, SVM, XGBoost).

    Tools: Python (Pandas, FastAPI, scikit-learn, PyTorch, Dash Plotly) – PostgreSQL – Spark – Docker
    Python PostgreSQL Spark MLOps Data Engineer
  • QARMA
    Data Scientist
    RESEARCH
    April 2019 - July 2019 (4 months)
    Marseille, France
    → Continuation of research on algorithmic performance in computer vision
    ✅ Improvement of all previous results (+8% overall)
    ✅ Implementation of scientific articles (GradCAM, transfer learning, CNN)

    → Scientific popularization POC: transfer of emotion from a real person to a portrait painting, modified accordingly (GAN)

    Python (Tensorflow, PyTorch, ScikitLearn)
    Data Science Python Scikit-learn

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Education

  • Master Artificial Intelligence and Machine Learning
    Aix-Marseille University / Centrale Marseille
    2020

Certifications

Skill set

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