
Webzenz developed Piramida.ch, a Swiss classifieds marketplace in German, French, Italian and English with regional search, messaging, Stripe and AWS.
Overview
Piramida.ch is a custom-built classifieds marketplace for Switzerland. Users create listings in German, French, Italian or English, search for offers by region, message sellers directly and can promote listings for a fee.
Webzenz handled the complete delivery, including the servers on AWS. A flexible structure for categories, attributes and fields makes it possible to add new sections without programming.
Starting point
A marketplace for multilingual Switzerland has to handle listings, search and administration in four languages and work regionally by canton and town. At the same time, the platform needed to generate revenue through memberships and packages and be easy to find in search engines.
Features and delivery
Listing management
Create, edit, reactivate and mark listings as sold, with images and category-specific fields.
Regional search and filters
Search by canton and town, flexible filters and map view.
Four languages
German, French, Italian and English, with translations managed in the admin.
Accounts and seller profiles
Registration with verification, password reset and public seller profiles.
Messaging
Direct communication between buyers and sellers on the platform.
Watchlist and saved searches
Save listings and searches to be notified about new matches.
Premium and promotion packages
Premium memberships and listing packages with banner and page placements, paid through Stripe Checkout with webhooks.
Statistics and admin
Dashboards with key figures and management of users, listings, categories, attributes, memberships, payments and pages, including CSV export.
Background jobs
Automatic listing expiry and notifications through background jobs.
Technical SEO
Dynamic metadata, clean language structures, XML sitemaps and robots rules for all listings.
Webzenz scope of work
- Project management and technical concept
- Frontend development with Next.js
- Backend and REST API with Django
- Admin interface with React and Vite
- Payments, maps and media processing
- Technical SEO for four languages
- Servers, deployment and environments on AWS
Technologies used
- Frontend
- Content and localisation
- Backend and API
- Database and data layer
- Admin interface
- Payments and billing
- Maps and media
- Servers, cloud and hosting
- Deployment and workflow
- Quality assurance
- SEO and GEO
Result
Piramida.ch gives Switzerland an independent, four-language marketplace with regional search, direct communication and clear revenue streams. New categories and fields can be added in the admin without development work.
The project shows how Webzenz delivers large multilingual platforms with frontend, backend, admin, payments and cloud operations from a single source.





