Senior iOS Engineer // Aiden

September 7, 2018

We are looking for an experienced iOS developer. We work closely with designers and product managers to come up with new features and help to shape the roadmap of the app. Our current iOS app is built using Swift 4, minimum deployment iOS 10, heavily based on AVFoundation for audio recording and wake word listening. The app is completely written using RxSwift, storyboards for most of the UI, WebSocket & REST communication with the backend, error capturing and analytics. To keep up with the code quality, we have in place continuous integration for building, UI testing and checking for code styling and complexity.


  • Deliver high-quality apps from designing and iterating new features into production in a short sprint cycle
  • Work in an agile, cross-functional team taking responsibility for the mobile team deliverables
  • Take a hands-on & proactive approach in all sprints and tasks
  • Work on research & development to bring the newest technologies to our speech-to-text and voice-activation environment


  • 3+ years of iOS application development, with solid experience of Swift/Auto Layout
  • Experience with CI/CD using CircleCI, Fabric, TestFlight or similar
  • Experience with releasing iOS Apps in the App store
  • Strong testing mindset (our app is widely tested using XCTest)
  • Experience with REST-based APIs
  • Excellent English communication skills (verbal and written). German not required


  • Strong experience with RxSwift (our app is entirely written using it)
  • Android experience – development, architecture understanding and deployment – is a huge plus
  • Good knowledge of the following tools: Cocoapods, Fastlane (scan, gym), Fabric
  • Good knowledge of AVFoundation & AVAudioSession
  • Experience with apps working in background mode
  • Experience with WebSocket communication


  • Be part of the mission to help the brightest scientists accelerate scientific discovery
  • Work in one of the best spaces in central Berlin alongside a team of experienced interdisciplinary colleagues
  • Shape and influence a fast-growing, well-funded company
  • Competitive compensation and benefits
Visit the company website