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Senior iOS Developer, AdTech (m/f/d)

Cologne, de💼 Full-time🗓 2026-08-07 → 2026-09-26

Core

Drive modularization and evolve scalable iOS architecture for Retail Media experiences, including sponsored products, recommendations, and native advertising.

Role type

Senior IC iOS Engineer (Architecture & Platform)

Builds

Reusable mobile components and scalable iOS ecosystem for millions of customers across Europe

Domain

Retail Media, AdTech, e-commerce

Required skills

Swift, modular architecture, Clean Architecture/MVVM, concurrency, memory management, CI/CD, unit testing, performance optimization

Preferred skills

KMP, Android development, Retail Media/AdTech domain experience

Technologies

SwiftUI, Swift Testing, Xcode Cloud, Swift packages, SPM, Async/Await, Dependency Injection

Responsibilities

Define and refine technical standards and architectural guidelines; Improve CI/CD reliability and release processes; Review and guide critical architectural decisions across teams; Implement feature flags and A/B testing; Reduce technical debt through platform improvements

Seniority

Senior, hands-on IC with architectural leadership

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