Lead iOS Engineer
Backend Mobile App Development Mobile App Testing iOS Development IOS
Mức lương
Khu vực
Phúc lợi
Cấp laptop
Phúc lợi khác
Thời gian làm việc linh hoạt
Cho phép làm tại nhà
Tổng quan về công việc và trách nhiệm
We are looking for a skilled and detail-oriented Lead iOS Engineer to develop the native iOS application for Felix AI. This role requires deep experience in Swift and SwiftUI, with strong expertise in real-time audio input/output, WebSocket integration, and mobile performance optimization. Key Responsibilities ● Lead the end-to-end development of the native iOS app using Swift and SwiftUI following MVVM or TCA architectural patterns. ● Implement real-time audio capture and playback (PCM) using AVAudioEngine, with robust handling of audio interruptions. ● Build and maintain WebSocket client (URLSessionWebSocketTask) for bi-directional, low-latency communication with the backend. ● Integrate REST APIs, Firebase Authentication, and implement offline data caching (Core Data or Realm). ● Optimize app performance (CPU, memory, battery, startup time, UI framerate) using Instruments. ● Achieve and maintain accessibility compliance (WCAG 2.1 AA) with support for VoiceOver, Dynamic Type, etc. ● Write and maintain unit and UI tests (XCTest), target >80% code coverage. ● Own the App Store release process and dependency management via Swift Package Manager (SPM). ● Collaborate closely with backend and DevOps engineers, PM, and UI/UX designer. Key Performance Indicators (KPIs) ● App startup < 2 seconds; sustained 60fps UI ● 80% test coverage; crash-free rate > 99.5% ● Stable real-time audio/WebSocket functionality verified under real-world conditions ● App Store delivery within 3 months of onboarding ● Accessibility compliance (WCAG 2.1 AA) validated through testing
Kỹ năng và kinh nghiệm tối thiểu
● 7–10+ years in native iOS development with a strong portfolio of performant apps. ● Expert in Swift and SwiftUI; advanced knowledge of AVFoundation and WebSockets. ● Proven experience handling real-time audio streams, API integration, and optimizing for battery/network. ● Experience implementing offline caching strategies and accessibility compliance.
Tại sao ứng viên nên làm ở đây
- Work arrangement: Hybrid (office 1-2 days/week) - Full-time labour contract
Ưu tiên có kỹ năng và kinh nghiệm
● EdTech product experience ● Apple Developer or Swift certification
Báo cáo cho
Client
Quá trình phỏng vấn
Technical interview and English check -> Client review, assignment (3hrs) -> Interview with client side
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