Backend development for a web app that enables customers to book test drives for new cars during multiple events over the course of the year.

Development comprised test-driven development of new features, mostly regarding the integration of several different 3rd-party systems using REST APIs, including the gathering of test drive data from the on-site operators, bulk SMS notification, roadbook PDF generation as well as an internal API for business-related KPIs.

The project had fixed deadlines (for two roadshow events so far this year) and features were delivered on time and stable including tests.

Backend development on a software system for handling and tracking lost luggage at airports.

Auditing and maintenance of the connected frontend web app and Android mobile app, as well as a microservice for data import.

Full-stack development and testing of a platform and mobile app for medical diagnosis, referral to specialist doctors and appointment scheduling.

Full-stack development on a clustered, cloud-deployed, multi-tenant platform for trading recyclable resources.

Konzipierung und Entwicklung einer SaaS Plattform zur Modellierung von Geschäftsmodellen, Berechnung von Forecasts und Visualisierung von Business Metriken und KPIs.