Full-Stack Engineer (Next.js, React, TypeScript)

About the role

Matchspace Music, a Swiss scale‑up supporting music teachers, is building its technical foundation from scratch. We need a full‑stack engineer who will own the architecture and delivery of a greenfield product using TypeScript, Next.js, Supabase and Stripe.

Key responsibilities

• Design and implement the entire technical stack from day zero on a greenfield TypeScript/Next.js/Supabase project.
• Use agentic AI coding tools as the primary development method, setting guardrails, reviewing output, and taking full accountability for shipped code.
• Design PostgreSQL data models, authentication, multi‑tenant isolation and row‑level security.
• Integrate Stripe (Connect, Billing, Checkout, webhook handling) for marketplace payments.
• Develop public marketplace and teacher‑facing product features.
• Collaborate closely with the QA Engineer on test‑driven workflows and Playwright coverage.
• Communicate technical trade‑offs clearly to product and business stakeholders.

Required profile

• Strong production experience with TypeScript, React and Next.js.
• Solid relational database design skills, especially PostgreSQL.
• Experience with multi‑tenant data isolation, authentication and security‑sensitive patterns.
• Practical experience integrating complex payment systems such as Stripe.
• Ability to operate as the sole engineer in a small startup, owning architecture and decisions.
• Clear written and verbal communication, comfortable explaining technical choices to non‑technical stakeholders.
• Daily use of agentic AI coding tools (e.g., Cursor, Windsurf, Claude Code, Warp) and a progressive AI mindset.

Required skills

• TypeScript
• React
• Next.js
• PostgreSQL
• Supabase (Auth, Row‑Level Security)
• Stripe (Connect, Billing, Checkout, webhooks)
• AI coding tools (Cursor, Windsurf, Claude Code, Warp)