Appointless

Role

Full Stack Engineer, Appointless (Launched November 2026)

Overview

Appointless turns a service professional's offerings into online bookings. Each professional gets a branded booking website on a subdomain or custom domain, where clients can book appointments, pay, and buy products. Behind it, professionals manage services, availability, bookings, customers and payments from one dashboard. I designed and built the entire platform: the customer-facing frontend, the API and background workers, and the internal staff admin console.

Key contributions

• Multi-tenant architecture: Built tenant routing so every professional's site works at /book/slug, on its own subdomain, or on a verified custom domain.
• Booking engine: Built timezone-aware availability, so slots come from each professional's weekly schedule and blocked dates. The server rechecks availability and sets appointment end times itself, which prevents double bookings and tampered requests.
• Payments: Integrated marketplace checkout with signed webhooks, retry handling, processing fees, commissions and a payment ledger. This is kept separate from professionals' own subscription billing.
• Website builder: Built themed public templates (Classic, Modern and Elegant) with colors and content set by each professional, plus dynamic Open Graph images for sharing.
• Online shop: Added product listings and order management so professionals can sell alongside bookings.
• Provider dashboard: Built the dashboard for managing bookings, customers, services, schedules, products, payments, notifications and website settings.
• Backend for frontend: Built a secure same-origin API proxy in Next.js with route allowlisting, origin checks and session cookie refresh.
• Notifications and background jobs: Set up Redis-backed queues and a worker process for email and in-app notifications.
• Staff admin console: Built a separate console for user onboarding, website moderation, analytics, settlements, content publishing, team access and audit logs. Role-based access is enforced on the server.
• Testing and deployment: Wrote unit and end-to-end tests (Vitest, Jest, Playwright), containerized local development with Docker, and deployed the frontend on Cloudflare via OpenNext.

Tech stack

Next.js, React, TypeScript, Redux Toolkit, Tailwind CSS, NestJS, GraphQL, Prisma, PostgreSQL, Redis, Docker, Cloudflare, Vite, Playwright