In the spring of 2014, Liseberg built an order system for web purchases. The background for this was a change of e-commerce provider and the investment in the product "Express Pass", which gives the guest priority in three optional attractions if they book their visit via the webshop. The order system has close integration with the cash register system.

Jonatan participated in meetings as a technical advisor and specified requirements together with colleagues and the e-commerce provider. He designed a database model, developed an application to read Express Passes and an administrative desktop application with associated reports. Performance tests were conducted before production deployment.

C#, Entity Framework, IIS, Kanban, MS SQL Reporting Services, DNS, Apache JMeter