David Gstrein from Kastelbell

David Gstrein

Keep it simple.

Laravel Specialist for Booking Systems and E-Commerce

Since 2010, I develop custom booking platforms for courses, events, training programs, and hotels. Technology: PHP/Laravel.
Optimized for performance: the system remains stable and fast even with hundreds of simultaneous bookings.

Our clients are companies, organizations, and associations across Europe.

Contact: david@websystems.io

Google Partner Sistrix Partner
Standortzeichen - Ein Unternehmen aus Südtirol

Solutions

Booking Systems

Courses & Training

For schools, academies, associations

Events & Conferences

Ticketing, attendee management

Hotels & Vacation Rentals

Reservations with availability calendar

Rentals

Bikes, equipment, vehicles

E-Commerce

Online Shops

Classic webshop with shopping cart, online payment, and order management

Click & Collect

Order online, pick up in store – ideal for local retailers

B2B Order Platforms

Product catalogs with inquiry modules for business customers

Automated Shipping

Label generation, tracking integration, pickup management

Technical Strengths

High-load performance – Hundreds of simultaneous users, stable and fast

Fast loading times – Optimized for Google PageSpeed and search engines

Automatic error monitoring – Errors are detected and reported immediately

Intuitive to use – Your team is productive immediately, no training required

Selected Projects

Digital Assistant for Every Bike Rental

Accepts bookings automatically – no emails, phone calls, or paperwork. Customers book bikes and accessories independently online.

Rental shops save hours of administrative work daily.

View rental software

Association Management

Manage members in compliance with data protection, collect annual fees online, securely store documents, send newsletters, organize training courses, and more.
So member administration finally runs stress-free and paperless.

Ideal for associations with several hundred members.

Request software