Senior iOS Engineer – Luxembourg

About the role

We are looking for a senior iOS Engineer to join a high‑impact product team in Luxembourg. You will help build and improve a large‑scale iOS application used by millions, focusing on reliability, performance, and user experience.

Key responsibilities

• Design, develop, and maintain production‑grade iOS applications using Swift, UIKit, and SwiftUI.
• Own features from concept through delivery, shipping incremental improvements via continuous delivery.
• Collaborate with backend engineers to integrate RESTful APIs and optimise client‑server communication.
• Work closely with product managers and designers to turn ideas into accessible, high‑quality mobile experiences.
• Write clean, maintainable, well‑tested code and contribute to unit and integration testing.
• Participate in test automation, code reviews, refactoring, and architectural discussions.
• Help define and improve iOS development standards, patterns, and engineering practices.
• Mentor other engineers and share technical knowledge.
• Engage in Agile ceremonies, identify technical risks early, and drive long‑term solutions.

Required profile

• Experienced iOS engineer with a strong understanding of mobile development practices and software architecture.
• Comfortable working independently while contributing to a high‑performing product team.
• Proven ability to solve complex challenges and build products at scale.

Required skills

• Swift
• UIKit
• SwiftUI
• iOS architecture patterns (MVC, MVVM, VIPER)
• Integration of RESTful APIs