Léonard Noth
ENFRDE

I build the thing,I lead the peoplebuilding it,and I teach it.

Léonard Noth
Fribourg, Switzerland
2013
writing code since
MSc
data science, thesis 6/6
2
products in production
3
languages I work infr en de

I got my first computer in 2010 and soon after started making software do what I wanted. Game bots and add-ons, the kind of code nobody asks you to write. Around 2021 the interest turned from making machines do tricks to making them useful: data science, then AI in products people rely on.

Today I'm CTO and full-time engineer of a small team: I own the architecture, the infrastructure, the AI pipeline and the release process, and I translate what research and pedagogy need into robust systems. I still teach at HEIA-FR: the fastest way I know to find out which of my convictions survive contact with a room full of students.

The questions I care about are rarely purely technical: build it or buy it, how far to trust the machine, what to teach someone who will work beside one.

How I got here

  1. 2010

    First computer. The IT world arrives through video games and simple software.

  2. 2013

    First code: bending things that already existed. Dofus bots, World of Warcraft add-ons. Nobody asked for any of it.

  3. 2015

    The passion stops being a simple hobby. It hasn't left since.

  4. 2018

    First system used daily by a company, a CRM that's still running.

  5. 2020

    Co-founded PYME while studying: apps and websites for clients.

  6. 2021

    Turned to data science and AI: smarter bots, trading strategies, face swaps. The machine as a tool, not a toy.

  7. 2024

    MSc in Data Science. From teaching assistant to lecturer, and a move to the iCoSys research institute with YEPA's Innosuisse research in tow.

  8. 2026

    CTO. And a shift in what I care about: making AI genuinely useful to people, not another chatbot.

Where I've worked

skills →

Yllyl

2026–present

CTO

The whole technical surface of two products, YEPA first among them: architecture, infrastructure, the AI pipeline, and the release process. I'm CTO and full-time engineer: I translate what the research and pedagogy side needs into robust systems, and manage the students and freelancers — between one and five depending on the period — who help build them.

HEIA-FR, iCoSys institute

2024–present

Data scientist, researcher, developer & project manager

The professor who first hired me changed institutes, so I followed her. YEPA's Innosuisse research has been managed from here since 2024.

HEIA-FR

2022–present

Teaching assistant, then lecturer for IHM & PS4

Teaching assistant since September 2022, then lecturer. Human-Computer Interaction (IHM): standing in for the lecturer and working as her assistant. Semester Project 4 (PS4): responsible for the data and AI side, and backup on the HCI and web front-end side. Since February 2026 at 20%, alongside the CTO role.

HEIA-FR, iSIS institute

2021–2024

Project manager & lead developer

Project manager and main developer on YEPA's Innosuisse research phase, alongside client mandates across many stacks. Full-time for the summer of 2021, then part-time through the master's.

PYME

2020–2023

Co-founder & software engineer

Client work and products built alongside my studies, with repeat clients as the only metric that mattered.

ARAS Nyon

2018–2022

Software engineer & project manager

Built their custom CRM during a six-month full-time internship, then kept testing, maintaining and extending it part-time for over three years.

LEM Switzerland SA

2017 · 2019

Software engineer

Two summers, two years apart. Optimised an internal site, and joined HERMES, a company-wide data-collection project, modelling automated screwing stations for the production chain.

Studies

  • MSc in Engineering, Data Science & Data Analytics
    HES-SO//Master2021–2024
    Thesis SAFE, graded 6/6, supervised by Prof. Sandy Ingram
  • Bachelor in Computer Science
    HEIA-FR2018–2021
    Bachelor work Dutine, graded 5.8, supervised by Prof. Pascal Bruegger
  • Bachelor studies
    UNIGE2015–2017
  • Scientific baccalaureate
    Lycée Mme de Staël2012–2015

Languages

  • FrenchMother tongue
  • EnglishC1+
  • GermanB2
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