AceSpeak
Senior Mobile Engineer (iOS & Android)
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About AceSpeak
AceSpeak is an AI-powered interview and public-speaking coach for iOS and Android. It helps users practise interviews and presentations through structured feedback. AceSpeak is a product brand operated by Wistkey UK Limited.
The role
Build and improve AceSpeak’s native iOS and Android app experience. You will work on recording, playback, user feedback and progress-tracking features while helping turn an early MVP into a reliable, well-structured product.
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, backend and AI teams
- Support App Store and Google Play release processes
- Help establish maintainable engineering practices as the product grows
What we are looking for
- 5+ years in mobile engineering
- Strong native iOS or Android development experience, with willingness to work across both platforms
- Experience shipping and maintaining production mobile apps
- Solid API integration, debugging, testing and performance skills
- A pragmatic, product-minded approach
- Good written English and strong collaboration skills
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Nice to have
- Audio or video capture and playback experience
- Flutter or React Native experience alongside native development
- Subscription, analytics or mobile accessibility experience
- Experience helping an MVP mature into a structured product
AceSpeak candidate exercise
All applicants are required to complete this AceSpeak practice exercise and achieve a total AceSpeak score above 3,000 before submitting an application.
- Download AceSpeak on iOS or Android.
- DM @acespeak.uk on Instagram with the role title to request a complimentary analysis token. The token is issued privately; do not purchase a subscription or share it.
- Record a 90-second to 2-minute response to: “Describe a product or project you helped improve and what you learned.”
- Practise and re-record until your total AceSpeak score is above 3,000.
- Include a screenshot showing your score and display name with your application. Please do not send the recording.
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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 hello@acespeak.uk and we will arrange complimentary access or an equivalent alternative exercise.
Location and package
Full-time remote role for candidates based in the United Kingdom. £60,000–£80,000, depending on experience.
How to apply
Apply here: https://acespeak.uk/careers/senior-mobile-engineer-uk/ Questions or adjustment requests: hello@acespeak.uk Explore AceSpeak careers: https://acespeak.uk/careers/
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