Freelance Flutter developer in Lille — mobile apps that pop 🔥

You want a clean, fast, and maintainable Flutter app... without ending up with massive technical debt in three months.
I develop (or take over) Flutter apps for iOS/Android with a hands-on approach: clear architecture, performance, and short iterations. Based in Lille, also available fully remote.

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Ex-CTO • over 10 years of development • Flutter/Firebase daily • solo developer used to delivering quickly... but well

What I can do for you

You can involve me from the start (MVP), to reinforce a team, or in "clean firefighting" mode on an existing app.

Flutter app development

iOS + Android with a single codebase, refined UX, accessible UI.

Architecture & quality

Proven patterns, clear UI / logic separation, code review and conventions.

API & backend integration

REST/GraphQL, auth, cache/offline, data synchronization.

Performance

Startup, smoothness, memory, size reduction, removal of "jank".

Maintenance & evolution

Bugs, refactoring, Flutter/packages migrations, adding features without breaking everything.

How I work (simple, no-nonsense, efficient)

1) Quick scoping (30–45 min)

We clarify the objective, the constraints, and the priorities (tech + product).

2) Concrete plan of attack

I propose a deliverable-by-deliverable approach : what brings value now, and what we save for later.

3) Delivery + continuous feedback

Clean PRs, clear changelog, and no-nonsense communication.

4) Handover

When I leave, your team (or you) can pick it up : documentation, conventions, and a prioritized technical backlog.

Who it's ideal for

Startup / SME that wants to ship a Flutter MVP without sacrificing the codebase.

Existing product that needs a boost (performance, refactoring, stability).

Team that wants a senior resource and standards (tests, architecture, CI/CD).

FAQ

Do you work only in Lille ?

No. I'm in Lille, but I also work remotely (video calls, Slack, GitHub/GitLab, etc.).

Do you take over Flutter apps already in production ?

Yes. I often start with a mini audit (architecture + perf + debt) before touching the features.

What state management do you use ?

I adapt to the context (Riverpod/BLoC/Provider…). The important thing is coherence and maintainability.

Do you also do backend / Firebase ?

Yes, if needed (auth, Firestore, functions, API, integrations or other). I have solid fullstack dev experience with Ruby on Rails, Node.js, the backend has no secrets for me.

Contact

Tell me where you are (idea / MVP / prod), and what you want to improve. I respond quickly and I am transparent about feasibility.

Contact

Let's stay in touch

Feel free to contact me if you have any questions or if you'd like to collaborate on a project. I usually respond within 24 hours.

Location

France

Social media

Freelance Flutter developer in Lille | iOS & Android apps | DEMILY Clément