 
 Roles
Rocco Ghielmini - Shopify App Developer
Dec, 2024 - Mar, 2025
Technologies Used
Swiss QR-Bills Automation
Swiss Invoice equips Shopify merchants with automated Swiss QR-Bill generation. Every order from a Swiss customer receives a compliant QR code that can be inserted into PDFs, printed invoices, and transactional emails without manual steps.
Problem
Merchants needed to comply with Switzerland’s QR-Bill payment standard, but generating and distributing QR codes by hand was error-prone and slow. They required a tool that handled compliance automatically across every customer touchpoint.
Solution
- Created a Remix-powered admin that walks retailers through enabling QR-Bill automation per sales channel.
- Built a Cloudflare Worker that renders Swiss QR codes on demand and caches the payload for fulfilment, email, and PDF workflows.
- Added guardrails for currency, IBAN, and debtor address validation so only compliant invoices are released.
Outcomes
Stores now ship invoices that meet Swiss Payment Standards by default, reducing reconciliation effort and accelerating collection times. The automation frees support teams from repetitive QR code tasks while maintaining a consistent invoicing experience.
