Move in Paris — multilingual welcome video
Freelance project · Move in Paris · 2025
A video guiding travellers from the plane to their driver, made with generative AI tools and produced in five languages.
Video language
About me
Étienne Collet — Software developer, Île-de-France
A helping hand for you, more time for your customers.
Analyst developer at Viparis. Trained in algorithms, image processing and artificial intelligence at Université Gustave Eiffel. I take on a few freelance projects: e-invoicing, digital product passports, websites, automations and AI training.
Available for freelance work a few days a month
About
After a bachelor's degree in mathematics and computer science and a master's degree in computer science specialised in artificial intelligence and image processing at Université Gustave Eiffel, research left me with one simple habit: understand a problem before tackling it.
Now an analyst developer at Viparis, I design web services that connect very different business tools. Before that, I spent three years at a web agency, on demanding projects run in parallel.
Alongside, I have been giving private lessons in mathematics and computer science for several years. Convinced that I can go even further, I now put my skills at the service of small and medium-sized businesses — showcase websites, custom applications, e-invoicing, digital product passports, taking over an existing project, AI training and automations.
Languages
Frameworks
Data & AI
Other
Experience
2021 — today
June 2025 — today
Analyst developer
Viparis · Permanent contract
Event venue rental; manages 95% of the exhibition venues in Île-de-France.
- Specification and development of web services between business tools
- Deployment to the different environments
- Introduction of DevOps practices
Environment: Magic XPA / XPI, Snowflake (DWH), Microsoft
September 2024 — June 2025
Software engineer
Globalis Média Système · Permanent contract
Web development agency known for its PHP expertise since 1997.
- Hosted a webinar on AI
- 6 to 7 projects run in parallel, Agile method
Environment: Slim, Laravel, React, SQL
August 2022 — September 2024
Software engineer
Globalis Média Système · Work-study
- Fixing, extending and building web applications
- Particular attention to optimisation and technical rigour
Since September 2021
Independent tutor
Mathematics & computer science
Tutoring first-year students at IGM (groups of 20), then private lessons as a freelancer.
Projects
Phase portraits
Supervised project, IGM · 2021 – 2022
Optimisation of an existing Python application generating phase portraits: a profiler to isolate the bottleneck, a C library called from Python to speed up the computation, performance tests on large data sets. Then creation of a web application: you type a complex function, it is compiled and its phase portrait is drawn in a few seconds.
Open the web app (new window)See on GitLab (new window)Atelier TCJ
Freelance project · ongoing
Showcase website for a cabinet-making workshop: portfolio, gallery, contact form.
Being finalised
Move in Paris — showcase website
Freelance project · Move in Paris · 2025
Design and development of the showcase website of Move in Paris, a taxi company: services, contact form, going live. The project also included multilingual welcome videos made with AI.
See the videosGraph database
Supervised research project, IGM · 2022 – 2023
Path queries in a graph database: Python implementation of the algorithm that enumerates every shortest walk accepted by an automaton, tests and proof of its complexity.
Paper published at PODS 2024 by C. David, N. Francis and V. Marsault (PDF, 720 KB) (new window)See on GitLab (new window)This website
Personal project · 2026
The website of my business: online booking, administration, client accounts. Laravel API, React interface, end-to-end automated tests.
See on GitLab (new window)Snake 3D
Personal project
The snake game, written in C, with a first-person view.
See on GitLab (new window)
Work and publications
Publications
AI applications in the web world (in French)
Article · Globalis Média Système, 2025 · basis of my webinar
The two main families of AI on the web (generative and classification), their uses, and how to integrate them in a project while keeping human supervision.
Read the article (PDF, 164 KB) (new window)Accessibility checklist summary (in French)
Summary · Temesis training, December 2024
ARIA attributes, page structure, keyboard navigation, forms, tables, videos: what to check for an accessible website.
Read the summary (PDF, 184 KB) (new window)
Education
2022 – 2024
Master's degree in Computer Science
Gaspard-Monge Institute of Electronics and Computer Science (IGM) — imaging specialisation in the second year
2023
Labex Bézout merit scholarship
2019 – 2022
Bachelor's degree in Mathematics and Computer Science
Université Gustave Eiffel — with honours
Based in Noisy-le-Grand (93). Currently employed, I take on a few freelance projects in the evening or at weekends — expect a quick first call to scope the project and schedule.