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William Guesdon, PhD

Data Scientist | Bioinformatician

About Me

I am passionate about solving business problems using Data Science & Machine Learning. I systematically & creatively use my skillset to add tangible value to the team, the business, and the end-user. I am constantly learning, and always looking to improve.

Work Experience

Director of Bioinformatics at Sonrai

Nov 2025 – Present

Principal Bioinformatician at Sonrai

May 2025 – Nov 2025

Senior Bioinformatician at Sonrai

Oct 2022 – May 2025

Kaggle Competitions Expert

Aug 2019 – Present

  • Overall Competitions Rank: 405 / 201,133
  • Steel Plate Defect Prediction: 11/2,199
  • Multi-Class Prediction of Obesity Risk: 30/3,587
  • Exploring Mental Health Data: 34/2,685
  • Predict the Introverts from the Extroverts: 36/4,329
  • Multi-Class Prediction of Cirrhosis Outcomes: 58/1,661

Scientist / Bioinformatician at 4D pharma plc

Nov 2021 – Sep 2022

Design and analysis of immunoassays for the screening of Live Biotherapeutics.

Senior Scientist at Pencil Biosciences Limited

Sep 2020 - Oct 2021

Development of synthetic genomic editing tools.

Postdoctoral Researcher at King’s College London

Jul 2017 - Aug 2020

Developed custom scripts to combine the Seurat and Immcantation pipelines for single-cell B cell analysis, used in 2 publications.

Postdoctoral Researcher at East Carolina University

Sep 2015 - Jun 2017

Investigated the impact of obesity on B cell function, leading to 3 publications.

PhD at INRA Tours

Oct 2011 - Dec 2014

Thesis: Intestinal epithelial cells in immune response induction during Cryptosporidium parvum infection.

Education

PhD in Immunology, University François Rabelais of Tours (2011-2014)

Master in Cellular and Molecular Biology, Poitiers University (2007 - 2011)

Licenses & Certifications

Machine Learning Engineer Nanodegree 2021

S2DS August 2020

Data Scientist with Python 2019

Data Scientist with R 2019

 

© 2025 William Guesdon

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