a-mate.techJean-Charles Barq, product engineer.

I turn your complex business workflows into clear, reliable and maintainable products.

[01]understand the business
[02]design the product
[03]ship it solid

About.

A Full Stack Developer and Product Engineer for over 6 years, I help companies design and build B2B web products, SaaS platforms and internal tools.

I get involved from the earliest stages of a project: understanding the business need, talking with users, clarifying user journeys, prototyping, technical decisions, development. When the project calls for it, that extends into mobile, UX and branding.

Based in Marseille, I work remotely and travel occasionally across France for audit and scoping phases.

Experience: 6+ years
Focus: B2B SaaS & internal tools
Stack: React · TypeScript · Next.js · React Native · Node.js · NestJS
Languages: French (native) · English (B2/C1) · Spanish (A2/B1)

Services.

[01]understand the business

What problem are we solving?

The product starts with the business, not the code.

Requirements gatheringUser interviewsProcess mappingExisting product auditScoping

[02]design the product

What should it look like?

Prototype before you build.

Figma prototypingUser journeysArchitectureTechnical choicesMVP prioritizationAI integration

[03]ship it solid

Will it hold up over time?

Ship, measure, iterate.

Full Stack developmentTestingReact / TypeScriptNode.js / NestJSCI/CDProduct revampMaintainability

Recent Projects.

Scaleway

Sept 2025 – Apr 2026

Technical owner of an internal tool centralizing hardware catalog, assembly manuals, commercial offers and asset tracking into a single interface. Feature-based architecture, requirements gathering, Figma prototyping and full implementation.

React / React Router v7 / TypeScript / TanStack Query / Material UI / Vitest / Zod / Figma