I build systems that run the business.

Full-stack architect engineering digital transformations, secure SaaS, and resilient operational backbones. Based in Antwerp, shipping globally.

React, Next.js, and practical AI integrations for day-to-day workflows.

Featured Work

The Infrastructure

Antwerp Stays
Operational OS
Digital Transformation Case Study

Antwerp Stays

Replaced manual, paper-based workflows for a major Antwerp hospitality operator with a tailored web app suite—live dashboards by role and an offline-first PWA for teams on the move. The platform streamlines 700+ weekly bookings and reduced errors by 75%.

Real-time logistics
Automated guest messaging
PWA with queue-syncing
Multi-role dashboards
Next.jsFirebaseSupabaseOpenAI
Dualhook
Messaging SaaS
Privacy-First Infrastructure

Dualhook

Architected a privacy-first middleware for the Meta Cloud API with a 'Zero-Retention' policy. The infrastructure handles high-concurrency webhooks using Next.js 16 and Turso, featuring multi-tenant isolation via Clerk and automated Stripe subscription tiers.

Stripe-powered subscriptions
Clerk multi-tenancy
Real-time health monitoring
Automated Meta API syncing
Next.js 16TursoDrizzle ORMStripeClerk
SweepHound
Accessibility SaaS
WCAG Auditing & Remediation

SweepHound

A full-site accessibility scanner that crawls live websites with axe-core and IBM Equal Access, groups findings into prioritized issue workflows, and turns them into code-level remediation guidance—HTML/CSS snippets, contrast suggestions, and platform hints. Built for auditing, remediation support, and ongoing monitoring rather than compliance guarantees.

Full-site crawler with auth support
Dual-engine a11y checks
AI-assisted remediation
Scheduled monitoring & reports
Next.jsPlaywrightaxe-coreOpenAIBullMQ
Commercial repositories are proprietary. Access available upon request.
Under The Hood

The Stack

Cloud

  • Next.js 16
  • TypeScript
  • Node.js
  • Serverless & Edge Functions
  • Vercel
  • AWS Lambda / API Gateway
  • AWS CloudFront / S3
  • Fly.io
  • Zod / Valibot

Data

  • PostgreSQL
  • Drizzle ORM
  • Redis
  • Supabase
  • Neon
  • Amazon RDS
  • DynamoDB
  • Firebase / Firestore
  • Turso (SQLite)
  • Cloudflare R2

APIs

  • Stripe
  • Clerk / NextAuth
  • OpenAI
  • AI/RAG Pipelines
  • BullMQ / Upstash
  • Sentry
  • Resend / React Email
  • AWS SES
  • Umami
  • Meta / WhatsApp Cloud API

Frontend

  • React 19
  • Tailwind CSS 4
  • Shadcn/ui & Radix UI
  • TanStack Query
  • Framer Motion
  • Playwright
  • axe-core / IBM Equal Access
Get in Touch

Let's Work Together

Let's collaborate on your next project. Drop me a line at matthias@provoost.dev or use the form below.