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Christian NoumsiCN

Christian Noumsi

Lead Data Scientist - Machine Learning Engineer

€790/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Christian

Holder of an Engineering degree in Statistics, I started my career as a Data Scientist 9 years ago; first as a consultant in various sectors, before turning to banking and insurance. I have acquired solid expertise, covering all stages of a Data project: from scoping to monitoring the solution in production.

My goal is to support clients in an agile manner in their projects, by solving concrete business challenges and bringing value from data. I also attach importance to knowledge transfer through mentoring and training junior staff.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 50km), Lyon (up to 20km), Lille (up to 15km), Rennes (up to 10km), Niort (up to 10km)

Experience

  • IRCEM
    Lead Data Scientist
    BANKING AND INSURANCE
    March 2023 - Today (3 years and 4 months)
    Lille, France
    I joined the IRCEM team as a consultant with the objective of optimizing the performance of existing analytical solutions. The mission began with a thorough evaluation of the complementary product recommendation engine. It continued with the design and implementation of an innovative methodology, better adapted to the company's specific needs.

    ✔️ Audit of a complementary product recommendation engine.

    ✔️ Design and implementation of a new methodological approach.

    ✔️ Management of the Scoring algorithms redesign.

    ✔️ Industrialization of models.
    Machine learning Scoring data Azure Databricks Spark Azure Atlassian Confluence Atlassian JIRA XGBoost Random Forest SVM Smote
  • Groupe BPCE
    Lead Data Scientist - Groupe BPCE General Inspection
    BANKING AND INSURANCE
    October 2020 - February 2023 (2 years and 5 months)
    Paris, France
    I joined the general inspection department to support the scaling up of data exploitation for auditing. My objective was to structure the Data Science department, and to provide Data expertise for missions on various topics such as business development, commitments and risks, compliance, governance, and human resources.


    ✔️ Structuring of the Data Science department including the implementation of tools and processes, participation in recruitment, mentoring and project management, understanding business challenges and translating them into technical requirements, developing innovative solutions for auditing, documenting and popularizing results, as well as technological watch. (Code review, technical point, project management, Qualimetry process)

    ✔️ Design and implementation of an automated document analysis solution to optimize efficiency and processing speed during an audit mission: searching for passages related to a given theme, sentiment analysis, keyword search, names, as well as their variations.

    ✔️ Implementation of a tool for collecting and analyzing customer feedback on Google: Web Scraping; categorization of reviews; identification of pain points, reasons for complaints, and sources of satisfaction; visualization of indicators and comparison of network establishments.

    ✔️ Implementation of unsupervised algorithms for detecting anomalies in banking transactions, pricing, and for analyzing the consistency between employee performance evaluations and their training needs.

    ✔️ Evaluation and optimization of the AML/CFT (Anti-Money Laundering/Combating the Financing of Terrorism) framework.
    NLP OCR Data visualization Git Google Cloud Platform (GCP) Microsoft Azure Code Review Bitbucket VSCode Pycharm JIRA Atlassian Confluence Technical Project Management Project Management Bert Text mining Scoring Regex Clustering Topic modeling LDA Spacy Data science Random Forest XGBoost Power BI Python SAS Data analysis
  • RCI Bank and Services
    Senior Data Scientist
    BANKING AND INSURANCE
    October 2017 - September 2020 (2 years and 11 months)
    Paris, France
    By joining the Data Lab, the AI service center for the Group, I contributed to accelerating data exploitation at RCI. I built demonstrators, and I demonstrated pedagogical skills in Data Science to engage business sponsors and identify new needs.

    In close collaboration with other team members: Data Engineer, DevOps, Business, and Project Management; I implemented end-to-end solutions to improve customer experience, or to automate and optimize certain processes.


    ✔️ Implementation of an automated email categorization and sorting engine, to relieve the operational teams of RCI Italy's CRM department. With automated responses for certain topics, the solution reduced the average response time by 44%.

    ✔️ Fraud detection: automation of the credit application file validation process, by recognizing images of proven fraudsters.

    ✔️ Building several predictive scores for optimizing marketing campaigns in France and Italy. These models helped optimize targeting for insurance renewal, reactivation, or churn prevention campaigns.

    ✔️ Life event prediction: more accurately estimating the residual value of vehicles under leasing, to identify the opportune moment to settle the financing.

    ✔️ R&D - Speech-to-Text: implementation of a Deep Learning algorithm for transcribing Call Center audio.

    ✔️ Automation of a reporting on margins generated from maintenance and extended warranty services. Collection of monthly files received from 19 countries; consolidation; data quality control; storage; reprocessing and visualization of indicators.
    NLP Machine learning Deep Learning Spark Hive Python Git Gitlab CI/CD Text mining Text processing Random Forest XGBoost OCR JIRA SVM Power BI Hadoop R Shiny R CNN Image processing Data visualization Dashboard Regression

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Education

  • Engineering degree in Statistics, Data Science for customer intelligence and revenue management
    ENSAI
    2014
    Ingénieur Statisticien, Data Science pour la connaissance client et le revenue management
  • Data Scientist for customer intelligence
    SAS Spring Campus 2014
    2014
    Data Scientist for customer intelligence

Certifications

Skill set (60)

Categories