open to new work

Fullstack software,
quietly rigorous

I'm Quentin — a freelance fullstack engineer with a master's in applied mathematics. I build web apps in Next.js and Python, plus the data pipelines and optimization models underneath. Ten years across the stack, from React frontends to Kafka and Kubernetes.

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selected work all work
Cebir
Automated a multi-week statistics-and-reporting process down to a few minutes.
python · airflow · polars
2024
Enobase
Schema-diffing tool that auto-generates typed database migrations from code.
typescript · postgres · kysely
2024
Embie
Public subsidy platform: citizens file and track requests end to end.
next.js · trpc · kubernetes
2023
IMEC
Smart-city digital twin and an urban-mobility optimization model.
python · kafka · deck.gl
2022
how i work
quantitative

A master's in applied maths. I reach for modelling and optimization where guesswork usually wins.

end to end

Frontend, backend, data pipelines, infrastructure. I've shipped across the whole stack for a decade.

handover-minded

I coach junior devs and document as I go, so the work outlives the engagement.

in numbers
years building
11
companies
06
ironman finishes
×3

I care about the maths under the product. My thesis was on community detection in complex networks; the day job is making that kind of rigour actually ship — and stay readable to the team that inherits it.

m.sc. applied mathematics · magna cum laude · uclouvain
writing all posts
Ten years across the stack, and what DevOps taught me 9 min · jul 2026 Airflow and Polars: turning a multi-week report into minutes 8 min · may 2026 Convex optimization for city traffic, in plain words 11 min · mar 2026