Jean-Brice M.

Freelance Lead Software Engineer. 10 years building data-intensive SaaS products from scratch in multiple startups (art, e-commerce, analytics, marketplace).

Stack

Front: React/TypeScript (7+ years), Next.js, React Native, Vue.js, GraphQL, D3

Back: Node.js, PostgreSQL, Ruby on Rails, Django, Hasura

AI: Claude Code, Codex, Cursor, Claude Agent SDK. Daily production use for 18 months.

Background

- First frontend engineer at Nova Data: e-commerce analytics, scaled to 30 paying customers. Full frontend architecture. Built Remixpanel, feature analytics pipeline using Claude Agent SDK.

- Lead frontend at Docent: art marketplace, grew from 1,000 to 20,000 iOS users, mentored a team of 4 developers.

- First employee at Prose: custom e-commerce, scaled from $0 to $10M in revenue.

- Core application at Wave.ai in Vue.js: startup acquired by Alan.

- Co-founder of Tropy.co (2015 to present): bootstrapped SaaS for 20+ international galleries and collectors managing 50,000+ artworks. Team of 3, full stack on Ruby on Rails, direct sales.

Working Style

- Translating vague requirements (founder, CEO, business operator) into concrete, measurable specs.

- Frontend architecture for data-heavy interfaces: D3 visualization, real-time filtering, complex dashboards.

- Integrating AI-augmented workflows daily: Claude Code hooks, skills, automated QA pipelines.

Available for senior/lead frontend missions, Paris or remote.