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Quentin VajouQV

Quentin Vajou

Data Engineer & Backend Developer

€750/day
Bayonne, FR
8-15 years

Average response time: 1 hour

About Quentin

I worked as a data scientist at Reezocar. I developed skills to lead projects from ideas to production. Data analysis, machine learning and when necessary deep learning. The last few years I moved onto data engineering and data architecture in general.

Recently I've had an interest in the AI capacity to generalize the understanding of a problem and the ARC (Abstraction and Reasoning Corpus) challenge specifically.
  • French

    Native or bilingual

  • English

    Fluent

  • Spanish

    Basic

Remote only
Primarily works remotely

Experience

  • SAS Check&Visit
    R&D / Data Engineer
    REAL ESTATE
    September 2020 - Today (5 years and 9 months)
    Data Engineer

    Machine Learning - Deep Learning - Mobile integration of DL models - REST API - Serverless - Data Architecture
    Machine learning Deep Learning API REST FastAPI GraphQL Serverless Docker docker-compose
  • Reezocar
    Data Scientist
    AUTOMOBILE
    July 2017 - July 2020 (3 years)
    Paris, France
    Machine Learning - Deep Learning - Image Processing - Natural Language Processing - Data Analysis - Recommender System - Lambda Architecture - Azure Datalake

    The mission of Reezocar is to facilitate the research and to secure the purchase of second-hand cars in Europe. To that end, Reezocar gathers millions of second-hand cars ads.

    The Data Science team has multiple missions :
    - Ensure data quality and availability
    - Design solutions to business issues based on data modelling
    - Develop, deploy and maintain these solution

    Examples of projects deployed include :
    - NLP matching algorithm (based on Microsoft publication) to extract information from unstructured products.
    - Recommender system to match the best products based on a client project
    - Prediction of market value variation
    - Image processing for classification and filtering
    - Design and implementation of an Hadoop-based Datalake with 500M+ documents to meet the Data Science Team needs


    Technologies : Python, Numpy, Pandas, Scikit, Graphql, Hadoop, Hive, Spark, Data Factory, ElasticSearch, SQL, MongoDB, Redis, Azure, Jenkins, Git, Docker, Kubernetes, etc
    Python Kubernetes GraphQL Jenkins Microsoft Azure MongoDB Redis Docker Elasticsearch Scikit-learn Pandas Numpy Hadoop Hive MySQL
  • Pumpkin App
    Data Scientist
    BANKING AND INSURANCE
    September 2016 - June 2017 (9 months)
    Paris, France
    The FinTech world is on the edge of revolution. These fast growing companies aim at a better quality of service along with a more stable financial landscape. Built on the merging of financial services and communications technology, these companies go from payments to wealth management, crowdfunding to peer-to-peer lending.

    Pumpkin is one of the main actors in the french FinTech with fast growing community. Pumpkin app is a simple and secure mean of payment among friends. Pumpkin is drove by the conviction that paying a friend should be as simple as sending a text. I was in charge of developing a deeper knowledge of the database to improve decision making.


    • Multi-scale reports
    • Data dashboards & templates for specialized team
    • Activation & retention strategy
    • Automate data refresh & standalone reports
    • Mini-Websites development


    --- Technical skills ---
    • DAX, powerBI (Microsoft)
    • Python Scientific & Analytic packages (Pandas, NumPy)
    • Web development (HTML, CSS, Javascript, PHP)
    • Matlab


    --- Human skills ---
    • Efficiency & Productivity
    • Synthetic thinking
    Python Microsoft Power BI HTML5 JavaScript PHP

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