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

Description

You will join a cross-functional product team building the mobile platform of an online pharmacy that serves customers throughout Europe.

The focus is Retail Media features in the iOS app, where you will help create the next generation of shopping experiences that combine sponsored placements, personalised recommendations, native ads and campaign-driven journeys.

You will work with product managers, designers, backend engineers, data scientists and Retail Media stakeholders, with direct influence on how the iOS app develops as the company grows.

Tech stack: Swift, SwiftUI, MVVM, Swift Testing, Xcode Cloud, Swift packages, SPM, async/await, dependency injection and the latest iOS SDK.

Responsibilities

• Drive modularisation and keep the iOS architecture scalable as it evolves.
• Set, implement and refine technical standards and architecture guidelines.
• Build reusable mobile components for Retail Media, such as Sponsored Products, Sponsored Brands, product recommendations and banners.
• Make CI/CD more reliable, speed up builds and improve release processes.
• Build a stronger testing approach and solid quality practices across teams.
• Raise app stability, performance and overall technical health.
• Review and steer critical architecture decisions across several teams.
• Pay down technical debt selectively while platform work helps product teams move faster.
• Add feature flags, experiments and A/B tests to validate new customer experiences.

Requirements

• Strong Swift skills and experience with large production apps.
• Deep understanding of modular architecture and scalable app structures.
• Hands-on experience with Clean Architecture, MVVM or similar patterns.
• Good grasp of modern concurrency and memory management on iOS.
• Solid unit testing experience and a record of improving test coverage.
• Experience with CI/CD pipelines and release processes.
• Strong teamwork, debugging and performance optimisation skills.
• Experience in Retail Media, AdTech, MarTech or large-scale e-commerce platforms.
• Additional: experience building cross-platform apps with KMP, and Android experience as an extra.

Conditions

Where the role does not require office presence, your work location can be arranged individually, including up to 20 days a year anywhere in the EU.

Benefits

• Membership package (M) at Urban Sports Club, giving access to a wide range of sports offers.
• Quick, free and anonymous support from psychologists at Likeminded for private or work-related stress.
• Fully paid Deutschland Ticket that can be used at any time.
• Internal and external training to support your personal development.
• Further benefits are available.