SAP
Corona-Warn-App
Germany's official COVID-19 contact tracing and digital health certificate app, serving 38 million users at peak adoption. One of the most high-profile public health apps in European history.
Die Herausforderung
Maintaining and evolving Germany's most widely used health app during the late pandemic phase required extreme reliability under massive user load. The app needed to support evolving health regulations, digital vaccination certificates, and interoperability with European health frameworks while meeting the highest standards for data privacy and security.
Der Ansatz
Contributed to the iOS development within a large cross-functional team of 27 engineers coordinated by SAP. Worked on feature development and maintenance of the Swift codebase, ensuring compliance with Apple's Exposure Notification Framework and German data protection regulations. Collaborated closely with backend teams, QA, and regulatory stakeholders to deliver updates on tight timelines dictated by evolving public health policy.
Tech Stack
Ergebnisse & Wirkung
Helped sustain the reliability and feature set of an app used by 38 million people during a critical public health period. Contributed to the smooth transition through evolving pandemic regulations and the eventual controlled sunset of the application, ensuring data integrity and user trust throughout.
Meine Rolle
Senior iOS Engineer responsible for feature development, bug resolution, and code quality within the iOS stream. Participated in architecture discussions and code reviews in a highly regulated, open-source environment under public scrutiny.
Ähnliche Herausforderung?
Erzähl mir von deiner Herausforderung. Ich sage dir, wie ich sie angehen würde — und eine realistische Timeline.