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Damien Mercier

Selected work

Work I can talk about in detail

I present projects as case studies, with context, problem, role, decisions and results, because that is what actually tells you whether we should work together.

Flexiwork

Product and technical consulting on a B2B office-space platform: discovery, a 4-track roadmap formalised in a PRD, and an AI workflow that took a 45-minute sales task down to 30 seconds.

Product & Technical Consultant (freelance), returning client

Next.jsAnthropic APIn8nHubSpot

Campus Coach

Frontend engineer in a 7-person team on a B2C coaching platform with 40,000+ paying users: monetization flows, internationalization and new product verticals.

Frontend Engineer (freelance), 7-person frontend team

ReactTypeScripti18n

gPulse

Worked on Greenworking's employee-listening platform: automated the report chain that turns survey data into client decks, and built the React dashboards consultants use alongside it.

Full-stack developer, working directly with consultants and analysts

ReactData visualizationPowerPoint automation

WebGL lab

An ongoing playground for Three.js, React Three Fiber and Blender, exploring what it takes to ship performant 3D on the web.

Personal lab · ongoing

Three.jsReact Three FiberBlenderVite

Have a product to build or improve? Let’s talk.

Tell me about your product and where it needs to go. I usually reply within one or two business days.