Senior iOS Developer (f/m/d)


Our mission at Mimi is to give everyone the best possible hearing experience and protect your hearing health. We are the world’s leading provider of hearing-based audio personalization and digital hearing test technologies.  Our team has developed a biologically-inspired and proprietary audio processing technology that knows how well you hear in order to personalize your listening experience and prevent hearing damage. Mimi’s technology can be integrated into consumer electronics devices, such as headphones, smartphones, TVs, in-flight entertainment systems and a range of systems and platforms.

To help us bring amazing hearing technology to more people around the world, we are looking for a Senior iOS Developer (f/m/d) for full-time employment in Berlin.


As our Senior iOS Developer (f/m/d)  you will…

  • Develop, maintain and document our iOS frameworks and apps
  • Closely work with your colleagues on concepts and encapsulation strategies
  • Provide technical partner support when needed
  • Define and maintain the technical vision for our iOS products
  • Make technical debt visible and coordinate improvement plans
  • Maintain and contribute to a high standard of code review
  • Support major company releases
  • Promote a healthy exchange of technical topics and ideas
  • Act as a consultant and mediator in technical discussions


  • 5+ years of professional experience as an iOS developer
  • Deep knowledge of UIKit and Cocoa Touch
  • Proficient in Swift 5+
  • Experienced in building testable, scalable solutions and architectures
  • Familiarity with Continuous Integration, Git and Xcode
  • Fluent in English


  • Experience building frameworks for Apple platforms
  • Familiarity with Objective-C
  • Experience with AVFoundation and audio on iOS
  • Knowledge of SwiftUI


  • A top-caliber, diverse and international team of dedicated domain experts
  • Flexible working and full responsibility for your own projects
  • Remote working opportunities and equipment
  • Yearly education budget and a company culture that nourishes personal growth
  • Modern working equipment plus plenty of audio perks and cool toys to try out
  • Weekly company meals, team-building events, and an annual summer trip
  • Flexible holiday policy
  • Monthly Lieferando credit
  • The opportunity to make an impact on an untapped market  and contribute to the development of a truly innovative product and company
  • An entrepreneurial experience in a young, fast-moving startup located in the heart of trendy Berlin-Friedrichshain

Find out more about us on our website: https://mimi.io


We know that some people have a tendency not to apply to jobs unless they meet 100% of the requirements. However, if you think that this job is great for you, then please send in your application!

Mimi is the world's leading company for digital hearing tests and sound personalization. The company was founded in 2014 in Berlin by Philipp Skribanowitz, Dr. Nick Clark, Pascal Werner and Dr. Henrik Matthies. The patented and internationally award-winning technology was developed and validated by a team of specialists in close cooperation with the Charité - Universitätsmedizin Berlin. The Mimi apps are medical devices in Europe (CE, class 1). With over one million hearing test app downloads from 150 countries, it creates the world’s largest database of digital hearing profiles. With Mimi Defined™, a technology for sound personalization could be developed, which - despite the imperfections of human hearing - can optimize the individual hearing experience for everyone. Our software can be integrated into any audio product, from headphones to TVs, smartphones or streaming services. Currently we’re working with Loewe, Bragi and beyerdynamic and one of Germany's largest life insurance companies BARMER.

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