Senior Mobile Engineer — iOS & Android
Listed on 2026-10-06
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Software Development
App Developer - Mobile/Web, Android Developer, iOS Developer
Ace Speak is looking for a Senior Mobile Engineer to build and improve our native iOS and Android app experience. You will work on recording, playback, scoring and progress-tracking features that help users practise speaking confidently.
Responsibilities- Develop native app features for iOS and Android
- Improve recording, playback and clip-review flows
- Ship app updates with strong stability and performance
- Collaborate with product, design and backend teams
- Support App Store and Google Play release processes
- 5+ years building mobile apps, preferably on both iOS and Android
- Strong Swift/SwiftUI or Objective-C skills, plus Kotlin/Java
- Experience with native audio/video capture and playback
- A user-focused approach and high attention to detail
- Good written English and strong collaboration skills
- App Store / Google Play release experience
- Subscription and in-app purchase experience
- Mobile accessibility and localisation knowledge
All applicants are required to complete a short Ace Speak practice exercise and achieve a total Ace Speak score above 3,000 before submitting an application.
The score is one part of a human-reviewed application process and is not used as the sole hiring criterion. If you cannot use Instagram, the app or the scoring format, need another token, or need a reasonable adjustment, email and we will arrange complimentary access or an equivalent alternative exercise.
Employment: Full time.
Location: Remote / hybrid within the UK;
London preferred.
Salary: £60,000–£80,000 / year.
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