Julien -heiduk

Senior Data Scientist | Recommender systems

Salary / Daily rate

59134 Fournes-en-Weppes, France

Freelance, open to permanent contract

Remote only

Skills

Data ScienceDeep LearningMachine LearningAIBig DataGitLLMs / Large language modelsData MiningDockerGitHub

Languages

French (Native)English

About me

Intro

Expert in recommender system

Links

Work experience

Senior Data Scientist

ADEO

Aug 2023 - Present

3 years 3 months

Remote

- Cold Start problem - Multi-modal similarity between items - Recommendations personalized - A/B tests - LLM for compatibility between items - GNN apply to recommendation system

Mentor Data Scientist & ML Engineer

OpenClassrooms

Feb 2017 - Jun 2023

6 years 5 months

Remote, OR 97458, USA

I help aspiring Data Scientist & ML Engineer to achieve their goals. The satisfaction rate of the 32 learners who have rated me and whom I have already coached is 4.94/5.

Lead Data Scientist

Jagger & Lewis

Aug 2022 - May 2023

10 months

Lille, France

Time Series Classification & API

Co-Founder - Lead Data Scientist

Labs on Mars

Oct 2019 - May 2022

2 years 8 months

Lille, France

- End-to-end ML-project with Dataiku for Predicitve SEO - Text generation for products description, FAQ, article generation - Integration of Data Sources (From API & scraping) and creation of Datamarts - Data technical referent - Cloud Management (Google Cloud Platform)

Senior Data Scientist

Jagger & Lewis

Aug 2018 - May 2019

10 months

Nord - Pas-De-Calais, France

- Developed an AI system for Dog's Activity Recognition. - Concurrently spearheaded the research and development division to investigate alternative deep learning methods. - Collaborated with a Machine Learning Engineer to handle project-related data. - Executed an end-to-end machine learning project. - Established tools to enhance project management, data visualization, and workflow. - Ensured all implemented tools were open source for transparency and collaboration.

Data Scientist

OVH

Dec 2016 - Jul 2018

1 year 8 months

59100 Roubaix, France

- Implemented a product-based recommender system to enhance CRM development. - Utilized Association Rules, interest scoring, and segmentation techniques in CRM development. - Deployed time series forecasting using RNN to predict call center activity and effectively scale teams. - Contributed to the development of a Speech-to-Text Proof of Concept using the WaveNet algorithm from DeepMind. - Applied NLP algorithms to examine and analyze survey data.

Senior Data Analyst

Sopra Steria

Jan 2015 - Dec 2016

2 years

La Madeleine, France

- Implementation of the Data Management Platform (DMP) - Data Muggling with the platform Cloudera (Hive, Spark...) - Implementation of ML's algorithm -Build Datalake

Data Analyst

Créatis (Groupe Cofidis Participation)

Mar 2012 - May 2014

2 years 3 months

Villeneuve-d'Ascq, France

- Reporting to monitor the activity - Production of KPI to pilot the activity - Setting up the calculation of bonuses for employees


Education

Université d'Artois

Licence, Mathématiques et informatique

2010 - Present

16 years 10 months

University of Lille 1 Sciences and Technology

Master ISN - Ingénieur Statistique et Numérique, Mathématiques et statistiques

2010 - 2012

3 years


Licenses & certifications

Engineering data with Azure Databricks

Issued: May 2023

Certified by Microsoft

Microsoft Azure AI Basics: Exploring Visual Tools for Machine Learning

Issued: May 2023

Certified by Microsoft

Modernizing Data Lakes and Data Warehouses with Google Cloud

Issued: Jul 2022

Certified by Coursera

Introduction to Recommender Systems: Non-Personalized and Content-Based

Issued: May 2019

Certified by Coursera

TOEIC - 805/990 (B2)

Issued: May 2018

Certified by TOEIC® Program

Structuring Machine Learning Projects

Issued: Oct 2017

Certified by Coursera

Neural Networks and Deeplearning

Issued: Oct 2017

Certified by Coursera

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