Yann Cohen – Data Analyst

About Me

Based in Martinique, a French Caribbean island 🌴.
Data Analyst at my core, open-source contributor at heart, and currently building simple tools that solve real problems.

I specialize in data manipulation, analysis, and visualization. Open Source got me into web scraping, vulnerability detection, and other quirky corners of the web 🕸️.
Blown away by latest AI tools and constantly learning and expending my skills, interests and capabilities.

When I'm not building dashboards, you'll probably find me at around 12,000 feet, jumping out of an airplane - 60 jumps and counting 🪂.

Professional Experience

Statistics Consultant (remote)

Freelance

2024 – present

Discovered an API key leakage on a major podcast platform. I reported and it was resolved within less than 12 hours. On a saturday!
Familiar with web scraping technologies such as curl, REST APIs and Selenium.
Developed a graph-network analysis model using Python's NetworkX to examine relationships between personality traits in primary school children for an academic study.
Contributor to the R open-source ecosystem - including ggplot2 and its extensions. Authored colourspace, a package for R users building UIs who need simple color space conversions.
Built an automated call-to-CRM workflow with n8n and a decision tree builder for students and educators - both tools have been adopted and are actively being developed based on user feedback.

Data Analyst

INNIO, Austria

2023 – 2024

Extracted multilingual text from legacy contracts using Tesseract OCR, improving data accessibility and search capabilities.
Built a text-analysis dashboard using NLP methods to analyze free-text comments from engineers, revealing actionable insights.
Contributed to a large-scale, company-wide data validation initiative, working extensively with SQL across Azure and PostgreSQL environments to ensure dataset reliability.
Developed predictive models for engine performance and identified optimal maintenance sweet spots, informing policies valued in the millions of euros.
Developed a customer-friction and churn KPI from raw data for rigorous measurement of satisfaction, supported by machine learning models for customer segmentation and supply-chain bottleneck detection.

Private Tutor and Developer

Freelance

2020 – 2023

Learning statistics and programming sparked something in me I didn't know existed before. Even as a first-year Psychology student, I found myself teaching not only fellow students, but PhD candidates from different institutions.

Noticed a recurring pattern in the data that led me down a rabbit hole - eventually identifying a random walk family algorithm. Built a live app to explore it interactively.
Developed web applications using the R Shiny framework with basic HTML and CSS, and authored custom R packages.
Taught English, R and advanced Statistics.

Education

Data Science and Math Courses

Innsbruck University (Austria)

2022 – 2023

During my Erasmus exchange in Innsbruck, I completed mathematics and programming courses focused on data science, including Python, linear algebra, and algorithms.

B.A. in Psychology

Ben-Gourion University, final grade: 94 - cum laude

2020 – 2024

Studied emotional and personality theories, advanced methods in cognition and statistics, and neuroimaging techniques - all aimed at deepening my understanding of the human brain (and because it was truly fascinating...).

Skills

Programming & Tools

R Python SQL Git Markdown Data Visualization Shiny Framework HTML/CSS Photoshop

Languages

Hebrew

Native

English

Excellent (oral & written)

French

Excellent (oral)

Spanish

Very Good (oral & written)

TOURMAN

Wait, who's Tourman?

Early on, when I started traveling, I adopted this last name as if to let people around me, and mostly myself, know that this journey is no joke. Let me (try to) start from the beginning.

Somewhere in Australia back in 2017, I got this idea of riding a bicycle the entire length of the globe from north to south. A few months later, on August 21st, 2018, I left Brooklyn, NYC, and headed north. Alaska north.

I returned south and started zigzagging between the coasts, deserts, and valleys of this vast country before eventually entering Mexico. In the next few months, the world was about to change - COVID. I found myself in mid-2020 in Costa Rica, unable to continue further south, I decided to go back home. The bike stayed there.

Fast forward to November 2024 (well, you can read in the sections above what I did all this time). I flew back to Costa Rica and re-launched my bike trip with the intention of reaching my destination: Ushuia, fin del mundo.

I'm in no rush. As one of the podcast titles down below rightfully stated, I don't just ride, I zigzag. So I found myself riding the high Andes, the mighty Amazonas, and - at the time of writing these lines - preparing for a boat-hitchhiking adventure to take me to Martinique, a French Caribbean island.

If you want to read, listen, or watch more, visit the links down below. And if you want to contact me - be it as a programmer or as an adventurer - I'm always glad to share this experience with others.