This job is no longer available
This job expired on 21/07/2026. It no longer accepts applications.
Senior Mobile Engineer – iOS & Android
Toptal
Job description
About the role
We are building a new class of consumer hardware that will transform how people interact with their living spaces. As a Senior Mobile Engineer you will own the end‑to‑end consumer app on both iOS and Android, delivering a seamless experience for discovery, purchase, setup, and daily control of the product.
Key responsibilities
- Design, develop, and maintain the iOS and Android mobile applications, ensuring high performance and reliability.
- Implement the full commerce flow, including product discovery, checkout, payments (Stripe, Apple Pay, Google Pay) and order tracking.
- Build a computer‑vision measurement pipeline using AprilTag detection, pose estimation, camera calibration and multi‑frame fusion.
- Develop BLE and Wi‑Fi connectivity layers, provisioning, firmware updates and device control in close partnership with the firmware team.
- Set up and operate production infrastructure: CI/CD, crash reporting, analytics, feature flags and release management.
- Collaborate with design to craft onboarding, error handling and a consumer‑grade user experience.
- Contribute to team growth through mentorship, technical hiring and setting engineering standards.
Required profile
- Bachelor’s degree or equivalent experience.
- 5+ years of experience shipping production consumer mobile apps.
- At least one publicly released app you have built or significantly contributed to.
- Deep expertise in one native platform (Swift/SwiftUI or Kotlin/Compose) and working knowledge of the other.
- Experience delivering commerce features such as checkout and payment integrations.
Required skills
- Swift, SwiftUI, Kotlin, Jetpack Compose
- iOS, Android development
- Stripe, Apple Pay, Google Pay integration
- BLE and Wi‑Fi connectivity
- Computer vision, AprilTag detection, pose estimation, camera calibration, multi‑frame fusion
- CI/CD pipelines, crash reporting, analytics, feature flags, release management
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