Marc Rahn
Senior Developer at SAP
Mannheim, Baden-Württemberg, Germany
Summary
🤩
Rockstar🎓
Top SchoolMarc Rahn is a Senior Developer based in Mannheim with five years of experience building cloud-native security services for SAP's Business Technology Platform. He develops and operates a central cloud-based certificate service to enable SAP's PKI strategy and has hardened Kubernetes clusters using Istio and Envoy while securing Node.js runtimes to make environments secure-by-default. His work spans authentication and authorization on Cloud Foundry, platform consulting, and enabling customers on data management and deployment pipelines. Marc is also an open-source contributor — notably improving the iOS UI and color-style consistency for Germany’s Corona-Warn-App — showing an eye for both security and user-facing polish. He blends practical platform engineering with attention to UX, turning infrastructure-level security into tangible, usable products.
5 years of coding experience
4 years of employment as a software developer
Bachelor of Science - BS, Wirtschaftsinformatik, Bachelor of Science - BS, Wirtschaftsinformatik at Hochschule Mannheim
Github Skills (4)
swift10
color-management10
ui-design10
ios10
Programming languages (1)
Github contributions (2)
corona-warn-app/cwa-app-ios
May 2020 - Jul 2020
Native iOS app using the exposure notification framework from Apple. The CWA development ends on May 31, 2023. You still can warn other users until April 30, 2023. More information:
Role in this project:
iOS Mobile Developer
iOS Mobile DeveloperContributions:638 commits, 183 PRs, 227 pushes in 2 months
Contributions summary:Marc's commits primarily focused on enhancing the iOS app's user interface and functionality. They implemented support for interface style, improved the preferred color style, and refactored existing color style names. These changes were made across multiple components, including models, scenes, and views, suggesting a focus on improving the app's visual appearance and consistency with the iOS design guidelines.
exposure-notificationios-appnotificationsios-nativenotification
ferdinand/cwa-app-ios
Jun 2020 - Jun 2020
Native iOS app using the exposure notification framework from Apple.
Contributions:1 push in 1 day
exposure-notificationios-appnotificationsios-nativenotification
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