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

Redcare Pharmacy; Berlin; On-site; EUR 90,000 - 130,000; Full time

Benefits offered by this job

Urban Sports Club membership

Mental health support from Likeminded

Work from home up to 20 days/year in a

Deutschland Ticket

Training & development

Job summary

Redcare Pharmacy is seeking a Senior iOS Engineer to design and build scalable mobile experiences within the Retail Media space. You will work in a cross-functional team, collaborating with Product Managers, Designers, Backend Engineers, Data Scientists, and Retail Media stakeholders to deliver high-quality iOS solutions used across Europe.

The role emphasizes modular architecture, modern concurrency, and a strong testing mindset to ensure performance and reliability of the shopping app.

Qualifications

• Strong expertise in Swift and production iOS apps.
• Experience with modular architectures and scalable app structures.
• Hands-on with Clean Architecture, MVVM, and modern concurrency.
• Solid unit testing experience and test coverage improvements.
• Familiar with CI/CD pipelines and release processes.
• Collaborates across design, product, backend, and data science.
• Experience in Retail Media, AdTech, or large-scale e-commerce is a plus.

Responsibilities

• Drive modularization and evolve a scalable iOS architecture.
• Define technical standards and architectural guidelines.
• Build reusable mobile components for Retail Media experiences.
• Improve CI/CD reliability, build performance, and release processes.
• Strengthen testing strategy and quality foundations.
• Improve app stability, performance, and technical health.
• Review and guide critical architectural decisions across teams.
• Reduce technical debt while enabling product teams through platform improvements.
• Implement feature flags, experimentation, and A/B testing.

Skills

Swift

Large-scale apps

Modular architecture

MVVM

Concurrency

Memory management

Unit testing

CI/CD

Debugging

Performance optimization

Retail Media

Cross-team collaboration

Job description

Company Description

About Redcare Pharmacy: As Europe's No.1 e-pharmacy, Redcare Pharmacy is powered by passionate teams and cutting-edge innovation. We strive to create a healthy, collaborative work environment where every employee feels valued and inspired to contribute to our vision "Until every human has their health". If you're seeking a career that offers purpose and aligns with your values, join us and begin your #Redcareer today.

About the role:

As a Senior iOS Engineer, you will play a key role in building the next generation of Retail Media experiences within the Redcare mobile platform. Working as part of a cross-functional product team, you will design and build scalable mobile experiences that seamlessly integrate sponsored products, personalized recommendations, native advertising, and campaign-driven customer journeys while maintaining a best in class shopping experience. You will have high visibility and a direct impact on how our iOS ecosystem evolves as we scale. You'll collaborate closely with Product Managers, Designers, Backend Engineers, Data Scientists, and Retail Media stakeholders to deliver performant, scalable, and customer-centric mobile solutions used by millions of customers across Europe.

About the tech stack: Swift, SwiftUI, MVVM, Swift Testing, Xcode Cloud, Swift packages, SPM, Async/Await, Dependency Injection, latest iOS SDK.

Job Description

About your tasks:

• Drive modularization and continuously evolve a scalable iOS architecture.
• Define, implement, and refine technical standards and architectural guidelines.
• Build reusable mobile components for Retail Media experiences, including Sponsored Products, Sponsored Brands, product recommendations, banners.
• Improve CI/CD reliability, build performance, and release processes.
• Strengthen testing strategy and establish strong quality foundations across teams.
• Improve app stability, performance, and overall technical health.
• Review and guide critical architectural decisions across multiple teams.
• Reduce technical debt strategically while enabling product teams through platform improvements.
• Implement feature flags, experimentation, and A/B testing to validate new customer experiences.

Qualifications

About you:

• You have strong expertise in Swift and experience working on large-scale production apps.
• Experience building cross platform application in KMP and Android experience is additional add-on.
• You bring deep understanding of modular architecture and scalable app structures.
• You have hands-on experience with Clean Architecture, MVVM, or similar patterns.
• You understand modern concurrency concepts and memory management in iOS.
• You have solid experience with unit testing and improving test coverage.
• You have worked with CI/CD pipelines and understand release processes.
• You collaborate effectively across teams and bring strong debugging and performance optimization skills.
• Experience working in Retail Media, AdTech, MarTech large-scale e-commerce platforms.

Additional Information

About your benefits:

• Sports: Stay healthy. Profit from a membership (M) package at Urban Sports Club, so that you can take advantage of a huge variety of sport offers.
• Mental Health: Get quick and professional help from psychologists of Likeminded if you feel overwhelmed in private or professional life. Anonymous and free of charge.
• Work from Home: If your job does not require you to be present in the office, we can arrange the place you work from individually - even for up to 20 days a year anywhere in the EU.
• Mobility: We provide our employees with a fully costed Deutschland Ticket which can be used at any time. Click here to learn more.
• Personal development: Grow! We support and encourage your individual development through various in- and external trainings.
• And many more :)