Ronald Kuiper

Situation: NS international develops its own native apps to help the customers with there tickets and real-time train information. Task: Lead the team of developers to create the best user-experience for our customers. Worked on the native apps, reducing technical dept and improving the cloud infrastructure (AWS) Activities: Develop Android and iOS apps. Write and implement a concrete roadmap to improve both apps and backend systems. Implement REST api’s running on the AWS platform in a docker container.

Situation: DPG has a large media platform for multiple newspapers like Parool, Trouw, Volkskrant and magazines like Libelle and Margriet. This in-house developed software stack is used for both digital channels like the website and apps but also for printed formats. Task: Further improve there media platform and introduce dark-mode for almost all brands. Activities: Develop Android and iOS apps. Construction of REST api’s running on the AWS platform Result: Dark-mode for almost all brands, improved architecture and introduced Jetpack Compose and Hilt dependency injection.

Situation: For all customers of Vattenfall (formerly Nuon) , the Vattenfall Energy app hasbeen developed to replace the MijnNuon app . This app is continuously maintained and further developed. Task: Development of the Vattenfall Energy Android app, building the .net Core API and iOS work. Activities: Develop Android and iOS apps. Construction of REST api’s running on the Azure platform Result: Enter meter readings for term amount advice and yearbill, view invoices, generated and used energy from solar panels show in the app. Refactored the app to properly use DI with Dagger. In addition, many various changes and bug fixes .