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Multi-tenant B2B SaaS · PWASolo Full-Stack Engineer2026

BarberBook

Multi-Tenant SaaS for Barbershop Booking & Queue Management

A production-grade B2B SaaS that lets barbershops accept 24/7 online bookings, run a live walk-in queue, manage staff & services, send automated WhatsApp/SMS reminders, and track revenue — all behind a subscription billing system. Designed and built end-to-end as the sole engineer.

Next.js 16Next.js 16
React 19React 19
TypeScriptTypeScript
Tailwind CSSTailwind CSS
PostgreSQLPostgreSQL
shadcn/uishadcn/ui
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Case Study

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Engineering Highlights

24/7 public booking backed by a real-time availability engine that makes double-bookings mathematically impossible.

Live walk-in queue over Pusher WebSockets — customers track their position from their phone in real time.

Automated WhatsApp → SMS → email reminders that cut no-shows by up to 40%.

Multi-tenant architecture with role-based access, revenue analytics, and tiered subscription billing.

Installable, offline-capable PWA with server-first data fetching for a lean client bundle.

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