How We Built a Next.js Client Portal for a US Startup

A US fintech startup needed a multi-tenant client portal: dashboard, document vault, and Stripe-backed billing — shipping in under three weeks.

The approach

We moved fast with Next.js App Router, server components for dashboards, edge-safe auth, and Postgres with Drizzle for deterministic migrations.

Results

• 95+ Lighthouse performance on every route
• Multi-currency billing billed directly
• Zero-downtime initial launch
• Codebase fully handed over

What the client said

“From kickoff to production in three weeks — and the technical bar is higher than agencies we paid 3x for.”