🤗 Testimonials

This page illustrates a work philosophy. Each project is presented in a way that highlights its results, combining scientific rigor and strategic vision. From the boldest ideas to the most practical implementation challenges, our goal is to show our commitment to building a real AI experience in business.

:probabl. the scikit-learn company

probabl

Yann Lechelle, CEO of :probabl. the scikit-learn company

Open Source, Open Data, Open Weights

Open Source has shown that removing barriers to learning, using, sharing, and improving software is beneficial to all. By applying these same principles to artificial intelligence — autonomy, transparency, frictionless reuse, and collective improvement — we can extend these benefits to everyone: developers, deployers, and users.

probabl.ai was born out of French scientific excellence at INRIA and builds upon the legacy of the iconic scikit-learn project. Our mission: to set the highest standards for Open Source in data science. Through our commercial activities (certifications, products, consulting), we accelerate the dissemination of our innovations into the real economy.



“With Warith and Laurent, glasspop is making history in ophthalmology”

glasspop

Dr. Florent Costantini, ophthalmologist and founder of glasspop, 2024

Laurent Pantanacce and Warith Harchaoui


glasspop is the first product that allows patients to test their vision on their own. Prescribing glasses takes expertise, but mass-producing them costs a dollar — it was time to shake things up!



“I used to ask ChatGPT-4 when I had AI questions, but now I ask Warith and Laurent — it’s much more efficient. That’s progress!”

volpi

Dr. Alexandre Larmagnac, Head of Pre-Development at Volpi Group, 2023

Laurent Pantanacce and Warith Harchaoui


Volpi helps improve patients’ lives by enhancing diagnostic instruments in IVD and life sciences industries.



“Warith is an AI Bible”

jsk

Annual performance review at Jellysmack, 2022

🛜 Video Creator Promotion Online

Jellysmack supports video creators — from content production to social media distribution.

I asked my manager, Nicolas Renard, if I could quote this line 👆, and he said yes. Thank you, Nicolas — for being an awesome manager and for brilliantly replacing me for the EMBA course at Rennes School of Business! 🙏🙏🙏



“An unlikely but amazing duo!”

rsb

Executive MBA student, 2022

Laurent Pantanacce and Warith Harchaoui

Together, we co-designed and delivered a 16-hour intensive course for the Executive MBA at Rennes School of Business titled “Artificial Intelligence for Business,” since 2021.



“Thank you for the great work”

ircam

Nathalie Birocheau, founder of Ircam Amplify, 2022

Warith Harchaoui


The mission of Ircam Amplify is to bring the best of IRCAM’s research and music creation to the market, through concrete products.



“Passionate (and passionate) work that shows great perspective on the field.”

map5
map5

Erwann Le Pennec, Professor at École Polytechnique and Ph.D. committee member, 2020

Warith Harchaoui


MAP5 is the applied math lab at Université de Paris, where I had the chance to study generative and discriminative AI during four amazing years.



“This collaboration with the university brought real value to the company I founded, Oscaro, through the Cerbero product.”

oscaro

Pierre-Noël Luiggi, founder of Oscaro.com, 2020

Warith Harchaoui


Oscaro.com is the European e-commerce leader for spare car parts.

👨‍🍳 My Work Philosophy

Domains are languages. I choose to learn yours — and share mine.

🤝 A partner, not a consultant
You don’t need another slide deck or generic dashboard.
You need someone who co-builds with you — from day one to delivery — and then empowers you with clarity and systems you fully understand.

🇫🇷
🗣️ 45 min of Warithmetics AI One-to-One