How do you actually collaborate remotely?

Async first (written updates, tickets, video demos), focused syncs, Europe timezone. Tools: Git, CI, Slack/email, video. No “always available” promise: milestones and channels are written in the scope. Describe your context to start.

Send context via the contact form. I reply with clarifying questions, a suggested approach, and next steps—usually a scoped audit or MVP milestone.

Remotefull-stackfreelanceforFranceandworldwide

Q: Do you travel on-site to Paris, Lyon, or other large cities?

No. Work is remote across France and internationally. On-site meetings are available around Perpignan only when useful.

Whether you are a non-technical founder or a tech team that needs senior backup, Mathieu42 delivers remote full-stack work across France and internationally—clear scope, documented delivery, and plain-language trade-offs. Clients often sit in Paris, Lyon, Marseille, Toulouse, Bordeaux, Nantes, Lille, Nice, Rennes, Strasbourg, Montpellier, and beyond.

See the related expertise

10+ years of experience
Over ten years of full-stack engineering shipped to production for startups and product teams — marketing sites, e-commerce, business apps, and API integrations.
Professional guarantees
Professional liability insurance covering the assignment and deliverables. Certificate included with the quote — a secure, transparent framework for working with your business.
Perpignan & remote
On-site around Perpignan and across Pyrénées-Orientales (66). Remote engagements across France and internationally — same scoping, follow-up, and delivery standards.

What you get

A senior engineer focused on business outcomes — not endless workshops. Framed plan, working software, handoff your team can own.

Same framing and delivery bar as on-site.
Clear async tools (repo, board, demos) — you always know where the work stands.
On-site only around Perpignan (66) when needed.

My take
Remote fails when scope is fuzzy. It works when milestones are visible.

Major cities served remotely

I work remotely with teams across France — and internationally when timezone and language align.

Paris, Lyon, Marseille, Toulouse, Bordeaux, Nantes, Lille, Nice…
Rennes, Strasbourg, Montpellier and other growth basins.
Same method: written quote, increments, documented handoff.

Worldwide remoteOn-site in 66

Remote by default

Engagements run remotely across France and internationally. On-site meetings are available around Perpignan and in the Pyrénées-Orientales (66) only. No travel to other départements.

How an engagement runs

From the initial call to production—same method for a website, an audit, or an MVP.

Intro call

You share context, goals, and constraints. I recommend the right solution (website, audit, MVP, maintenance…) with no obligation.

30 minRecommendation + next steps

Scoping and quote

Written scope, recommended stack, milestones, and an indicative range or fixed fee. Free quote with no obligation—you approve before the first billable day.

2–5 daysSigned quote and scope

Kick-off

Repo/tool access, shared plan, and a first visible milestone—no radio silence.

Half dayInitial backlog + environment

What I ship

Web, software & SaaS, AI, and mobile. Open the expertise that matches your project, then I scope the next step with you.

Web development

Conversion-focused sites, web apps, and e-commerce — shipped with performance and SEO foundations.

from €750 ex VAT

Software & SaaS

From MVP to a reliable platform: API-first delivery and maintainable full-stack execution.

from €1,750 ex VAT

Artificial Intelligence

Pragmatic AI features and automation wired into your product — not demos for demos’ sake.

from €750 ex VAT

Mobile app

Cross-platform mobile apps with a solid backend, clear scope, and production-ready quality gates.

from €1,500 ex VAT

FAQ

Frequently asked questions

Still have questions? Get in touch