Engagementroles
Full-stack, tech lead, fractional CTO, and related profiles. Each landing routes you to the expertise that fits the mission.
Role landings
- Full-stackOne full-stack partner from need to deploy: front, API, data. Ideal if you have no tech team yet, or if your team wants a senior who owns end-to-end delivery without stacking freelancers.
- BackendReliable backends: APIs, auth, data, integrations. Leaders see processes that run; backend teams get a senior on performance, security, and debt—without theatrical rewrites.
- FrontendClear frontends that convert and guide users. Mathieu42 builds interfaces customers understand—and a front codebase your team can evolve without friction.
- Software engineerPragmatic software engineering: ship, document, reduce risk. Whether you are a non-technical founder or a team lead, Mathieu42 brings senior discipline without heavy enterprise process.
- Tech leadFractional tech lead: unblock a product team, clarify architecture, make delivery reliable. Useful for non-technical founders with “nobody to decide,” and for squads missing an embedded senior.
- CTO as a ServiceSenior technical leadership on demand—without hiring a C-level executive too early. I decide stack, budget, vendors, and hiring, with written deliverables and a fee set in the quote.
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