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Thibault F.

Full-stack developer — products built to last

Open to opportunitiesLyon, France
Get in touchBook a call

FicelleShared budgeting for flatmates, minus the headache

About

I've been designing and building web applications for six years, from prototype to production.

My home turf: end-to-end TypeScript, well-typed APIs and interfaces that get to the point. I like simple architectures that survive growing teams.

Currently looking for freelance work on product-focused web apps — ideally with a real UX component.

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Projets

Ficelle
Next.jsPostgreSQLTailwind CSSTypeScript

Ficelle

June 2024 — present
Featured project

Shared budgeting for flatmates, minus the headache

Flatshares track expenses in WhatsApp threads and wobbly spreadsheets. Nobody knows who owes what, and month-end always turns into a negotiation.
Read the case studyFicelle

The solution

A mobile-first PWA: everyone snaps their receipts, OCR extracts the amounts, and the settlement algorithm minimizes the number of transfers.

  • Next.js + Postgres, offline-first with sync
  • Server-side OCR (Tesseract), one-tap manual fixes
  • Debt-simplification algorithm (flow graph)

My role

Solo project end to end: product, design, development, deployment and the first 400 users.

What I learned

Offline-first is expensive in complexity — I'd only do it again for a real need. I also learned to cut scope: v1 shipped with a single split mode and lived fine for three months.

Ficelle — image 2
Live siteSource code
Sillage
DockerNode.jsPostgreSQLReact

Sillage

April 2023 — March 2024
Featured projectat Studio Brique

Fleet tracking for sailing clubs

Sailing clubs manage boat bookings and maintenance on paper. The result: double bookings and breakage discovered on Saturday morning.
Read the case studySillage

The solution

A booking app with a digital maintenance log per boat. Reported damage automatically blocks the affected slots.

My role

Built with one of the studio designers: I owned the entire back-end, the infra, and half the front-end.

What I learned

First real project with non-technical users: half the work is onboarding and error messages.

Live site

tempo-cli

January 2025 — present

Pomodoro timer in the terminal, zero dependencies

Every Pomodoro app wants an account, an Electron app and a subscription.
BunTypeScript
Read the case studytempo-cli

The solution

A single compiled Bun binary: tempo 25 and off you go. Native system notifications, local stats in SQLite.

My role

Solo weekend project that got serious.

What I learned

Shipping an open-source tool is 20% code and 80% README, issues and cross-platform packaging.

Source code
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Expérience

March 2023 — present

Senior full-stack developer

Alan

Onboarding team: rebuilt the company signup flow.

  • Progressive migration from a monolith to strict TypeScript modules
  • Cut average signup time by 40%
  • Mentored two junior developers
September 2020 — February 2023

Front-end developer

Studio Brique

Product agency — sites and apps for enterprise clients.

  • Shared design system across six client projects
  • Migrated legacy Flash properties to the modern web
January 2019 — August 2020

Freelance — short contracts

First contracts alongside studies: integrations, small brochure sites, automation scripts.

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Stack

Languages

Frontend

Backend

Data

Infra & tooling

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Formation

September 2014 — July 2019

Engineering degree in computer science

INSA Lyon

Information systems track. Final-year project on real-time data visualization.

Ongoing self-teaching

Currently learning Rust; lots of open-source code reading.

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Blog

All posts

Contact

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