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Christian Yamdjieu NgadeuCY

Christian Yamdjieu Ngadeu

Statistician / Data Analyst / Data Scientist

€400/day
Paris, FR
3-7 years

Average response time: 1 hour

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About Christian

I am an experienced statistician methodologist passionate about data science. Throughout my career, I have developed strong expertise in predictive modeling and high-dimensional data analysis, enabling me to solve diverse and complex problems.

I have participated in several large-scale data projects as a statistical study engineer.
I work with multidisciplinary public or private teams to help them leverage their study data, employing advanced quantitative methods and artificial intelligence (AI).

Feel free to contact me if you wish to discuss your data statistical analysis needs.

Programming Languages: R - SAS (Base, STAT, Macro, SQL, IML, GRAPH) - Python
Environments & Software: SAS Enterprise Guide - Notepad++ - Microsoft Office - Zotero
Data Management & Structuring: Relational Databases (SQL, data management) - SQL Queries - Data Structuring and Validation - Spatial Mapping and Data Visualization
Statistical Analysis: ANOVA - Hypothesis Testing - Chi-squared Test - Confidence Interval Estimation - Probability Calculation - Simulation and Bootstrap
Statistical Modeling: Generalized Linear Models (GLM) - Linear Regression - Logistic Regression - Poisson Regression - Cox Model (Survival Analysis) - GLMM (Generalized Mixed Models) - Hierarchical Bayesian Models - Bayesian Inference - Smoothing Splines
Data Science & Machine Learning: Data Mining - Predictive Model Development - Cross-Validation - Performance Evaluation (AUC, Sensitivity, Specificity) - Algorithms and Data Structures (SNDS)
  • French

    Native or bilingual

Can work on-site
Paris (up to 50km)

Experience

  • ITG
    Consultant
    January 2025 - Today (1 year and 5 months)
    • Development of multilevel spatial predictive count models to estimate pharmaceutical product transactions
    • Support for students (Data Analysis using R)
  • Hôpitaux Universitaires de Strasbourg (HUS)
    Statistician / Data Scientist
    March 2023 - September 2024 (1 year and 6 months)
    Participation in study design up to valorization

    Achievements:
    - Development of statistical and predictive models on large and multi-source databases.
    - Development of advanced multivariate models (logistic regression, survival analyses) for risk quantification and prediction.
    - Implementation of causal and quasi-experimental approaches (propensity score, counterfactual analysis) for effect estimation and decision support.
    - Construction of algorithms for identifying at-risk profiles from complex data.
    - Processing, chaining, and optimization of massive databases (SAS, SQL, Oracle, R).
    - Data quality control, management of statistical biases, and validation of model robustness (sensitivity analyses).
    - Production of analytical reports and presentation of results to non-technical stakeholders.

    Technical Environment:
    R, SAS, Oracle, SQL, Notepad++, MS-Office
    SQL SAS Programming R Data Modeling Data Analysis
  • CHU de Toulouse
    Statistician Programmer (R, SAS, SQL)
    September 2020 - February 2023 (2 years and 5 months)
    Achievements:
    - Writing statistical analysis plans.
    - Extraction, structuring, and quality control of complex databases (SAS, SQL).
    - Development and implementation of statistical models adapted to longitudinal and multi-source data (multivariate models, survival analyses, risk comparisons).
    - Risk analysis and modeling.
    - Early identification of at-risk profiles from massive data.
    - Analysis of individual trajectories and events in real-world conditions databases.
    - I contributed to statistical and cartographic analyses to identify and represent, at the departmental level, falsified prescriptions reported by community pharmacies.

    - Interpretation of results in collaboration with multidisciplinary teams.
    - Writing technical and scientific reports.

    Technical Environment: R, SAS, SQL, MS-Office

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Education

  • Master2 Biostatistics, Biomathematics, Bioinformatics and Health (B3S)
    Université Claude Bernard de Lyon1
    2014
    Master2 Biostatistique, Biomathématique, Bioinformatique et Santé (B3S)
  • Master1 Mathematical Engineering
    Université Claude Bernard de Lyon1
    2013
    Master1 Ingénierie Mathématique

Certifications

  • SNDS Accreditation
    Institut 4.10
    2017

Skill set

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