Product Engineer: fractional CTO and senior React Native / Next.js engineer for startups

Product-minded full-stack engineer: I take your idea and ship it to production, solo, AI-augmented. Clickable prototype in 24 hours for €500, then the format that fits: first mobile engineer or fractional CTO. 10 years at TF1, PMU, PSA and Zeturf.

// definition

What a Product Engineer actually does

A single point of contact covering the whole chain, from scoping to production. No team coordination, no handoffs, no dilution of product intent.

Product scoping

I translate a fuzzy idea into a shippable scope, with explicit decisions about what makes it into v1.

Design & UX

Clean interfaces, readable user flows, reusable components. Not pure Figma. Design that ships as code.

Architecture & stack

Pragmatic choices: Next.js, React Native, AWS, Cloudflare, Supabase. No over-engineering, no hidden debt.

End-to-end development

Frontend, backend, API, database, third-party integrations. All the code, by the same person.

Deployment & infra

Shipping, certificates, monitoring, CI/CD, backups. Production-ready from day one.

AI-augmented iteration

Claude Code, Cursor, custom MCP servers, specialized agents. I deliver in days what used to take weeks.

// why now

Why a Product Engineer rather than a team?

Speed

No coordination, no sync meetings, no handoffs between dev / design / PM. One brain, one screen, one product moving forward.

Cost

One salary instead of 3 to 5. No hiring, no management, no turnover. MVP cost divided by 3.

Alignment

Scoping, design, code and infra all done by the same person. Zero loss of intent between stages.

AI leverage

Augmented by Claude Code, Cursor and custom agents, I ship in days what required a team 2 years ago.

// four ways to work together

Pick the format that fits your need

Same Product Engineer posture, four formats depending on where you are: an idea to show in a day, tech to structure, a mobile app to launch, a prototype to industrialise.

// our offerings

Four formats, one senior engineer

Structure your tech, launch your mobile app, show your idea in a day or take a prototype to production: one entry point for each case, one senior engineer behind all of them.