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Arnaud Durand · Paris, France

Curious by nature.
Building, together.

I build AI tools, with a soft spot for the systems underneath. From a UNIX shell to a voice journal, I like turning an idea into something we can try, question and improve.

AI Platform / Applied AI Engineer

Say hello

Looking for a permanent role after 16 October 2026

01 /

A few things I’ve built

Ideas explored in teams, then taken a little further.

Python · Agents · Local-first

Droit de Retard

Prepare a draft flight claim from documents, with explicit validation and calculations in Python.

Personal continuation of a team project: tool-call validation, regression tests and CI.

Read the story
Droit de Retard prototype screenshot: flight input and analysis result.
Droit de Retard · demo interface from the public repository
02

Audio · React · FastAPI

Diary / Kura

Connect browser voice recordings to audio processing, storage and weekly reports.

Personal continuation of Kura, a team project developed across two hackathons.

Read the story
03

AI · Volunteering

Croix-Rouge

A collective first-aid training platform, shown at ChangeNOW 2025; conversations with visitors at the Red Cross stand.

Volunteer contribution to part of the AI layer and problem framing with trainers. The repository is a fork of the team project.

Read the story

And underneath, a systems foundation.

Projects from École 42 Paris: processes, concurrency and the small details that make software work.

All projects
02 /

Good company. New problems.

Hackathons are a way for me to meet people and explore unfamiliar ground. Some ideas become longer projects; others remain experiments.

A selection of team experiments

2026

Paris Gemma 4 Hackathon

Agents and travel documents2025

Google Cloud Partner Agentic AI Hackathon

Kura · team voice journal2025

IA & Crise · Croix-Rouge / Simplon

First-aid training
All hackathons
03 /

There’s more to it than code.

I enjoy learning with other people. That takes different forms: organising a developer talk, coaching a training session, or listening to a debate that changes how I see a problem.

Train & encourage

Fitness 42

3+ years leading and coaching. Another place to learn and progress together.

Listen & question

CITOY.ENS

Conferences and debates. I attend talks and have suggested speakers to the association.

Along the way

2026BPCE

AI platform internship · internal proof of concept

2025–2026BNP Paribas

Data Scientist internship · document analysis & LLM observability

2019–2024École 42 Paris

Learning through software projects

What’s next?

Something worth building?

I’m looking for a permanent role in applied AI or AI platforms. I’m also happy to talk about your project, a hackathon or an idea. French native; English fluent; Spanish B1.

Let’s talk