Description

Ich bin ein Senior iOS Entwickler mit über 8 Jahren Erfahrung. Ich habe an der Kaufland App für die Schwarz Gruppe gearbeitet, interne Apps für STRABAG AG entwickelt und die STRAFFR Fitness App fast komplett selbst gebaut. Bei Finarx GmbH habe ich an iOS‑ und Flutter‑Projekten gearbeitet. Früher war ich iOS Security Researcher bei Fraunhofer während meines Masterstudiums in Frankfurt.

Ich arbeite zuverlässig, schreibe sauberen Code und unterstütze Teams bei neuen Features oder ganzen Apps.

Meine Arbeitssprache ist Englisch. Ich spreche nur ein bisschen Deutsch (A2).

Industry field of expertise

Languages

English
Fluent
German
Basic

Workplace preferences

Can work on-site

Hanau (up to 50km)

Schwarz Dienstleistungen
IOS Engineer
RETAIL (LARGE RETAILERS)
July 2023 - Today (2 years and 11 months)
Weinsberg, Germany
Contributing to the development and continuous improvement of the Kaufland App at Schwarz Digits, a large-scale retail application used by millions of users.
Collaborating closely with UI/UX designers, product managers, and analytics teams to deliver user-centric features aligned with business goals
Designed and developed a Proof of Concept (PoC) for a Stories feature to enhance product discovery and user engagement
Implemented feature flags to enable controlled rollouts, A/B testing, and validation of features using analytics metrics
Contributed to the Security Leaks feature, improving user awareness and platform trust
Introduced a protocol-oriented localization system, replacing static strings with a scalable and maintainable solution
Developed shell scripts to automate repetitive development tasks, including generation of localization providers and parsing server-driven content
Contributed to key features such as Kaufland Offers, while continuously fixing bugs and improving performance and stability
Initiated and contributed to the adoption of Kotlin Multiplatform (KMP) for shared business logic and development of a cross-platform design system (fonts, colors)
Modular Architecture Swift Combine SwiftUI Kotlin Multiplatform (KMP)
STRABAG
IOS Engineer
CIVIL ENGINEERING
January 2023 - May 2023 (4 months)
Stuttgart, Germany
Worked as an iOS Engineer at STRABAG AG on internal enterprise applications
Contributed to the development of the in-house platform Strabag MyApps, used for internal workflows and tools
Collaborated closely with UI/UX designers and backend teams to deliver efficient and user-friendly solutions
Developed Progressive Web Apps (PWAs) integrated within the iOS ecosystem
Improved performance and reliability of existing native WebView-based features
Focused on optimizing user experience and ensuring smooth interaction between web and native components
Swift SwiftUI MVVM Combine Modular Architecture
Straffr Gmbh
iOS Developer
HEALTH AND WELLNESS
February 2021 - March 2023 (2 years and 1 month)
Kassel, Germany
Led iOS development at STRAFFR GmbH, rebuilding and significantly expanding the app from a limited feature set to a full-scale product
Owned key architectural decisions, ensuring a scalable, maintainable, and testable codebase
Maintained high code quality with a strong focus on unit and integration testing
Designed and implemented new features for the STRAFFR App, enhancing user engagement and functionality
Developed and integrated Bluetooth Low Energy (BLE) features for seamless hardware interaction
Integrated and managed backend services using Firebase, including Firestore and Cloud Functions deployment
Built and maintained CI/CD pipelines using CircleCI for automated testing and delivery
Evaluated and introduced new technologies based on product and scalability needs
Implemented monetization features including paywall integration
Developed personalized user experiences, including adaptive workout feedback and custom workout creation
Integrated authentication systems including Google and Apple Sign-In
iOS Development SwiftUI UIKit Modular Fastlane