Senior iOS Developer (m/f/d) – Berlin, Munich or Constance

About the role

We are expanding our Apps Team and are looking for a Senior iOS Developer to join us in Berlin, Munich or Constance. You will work on a popular weather application used by millions daily, helping to deliver reliable, user‑friendly features.

Key responsibilities

• Develop and extend the existing iOS app with new features and improvements.
• Collaborate with a small, agile team of developers, designers, and product owners.
• Maintain and modernise the code base, ensuring technical cleanliness.
• Write unit and UI tests to guarantee stability and reliability.
• Fix bugs, optimise performance, and handle edge cases.
• Explore and adopt new technologies to boost development efficiency.

Required profile

• Strong analytical and problem‑solving abilities.
• Team‑oriented mindset with the capacity to motivate peers.
• Responsibility and strategic thinking.
• Degree in IT or related field with several years of professional iOS development experience.

Required skills

• Proficiency in Swift and Objective‑C.
• Experience with Swift concurrency (async/await, global actors, Dispatch).
• Deep knowledge of UIKit and SwiftUI, including WidgetKit and watchOS.
• Familiarity with Xcode IDE, UIKit SDK, and optionally watchKit SDK.
• Understanding of MVVM architecture.
• Solid background in unit and UI testing using XCTest.
• Experience consuming REST APIs.

What we offer

• Ownership of projects with freedom to implement ideas.
• Team‑centric culture with flat hierarchies and open communication.
• Flexible hybrid working model (home office and on‑site).
• Informal environment without strict dress codes.
• Broad range of perks, social benefits, and professional development opportunities.