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# Senior iOS Engineer (Fully Remote - £100k+)

- **Company:** La Fosse, Clay
- **Location:** United States (Remote available)
- **Experience:** Expert
- **Salary:** $100,000.0 - $120,000.0
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, IOS Applications, Apple IOS, App Store (IOS), Memory Management, Mobile Application Software, Tensorflow, Swiftui, Concurrency, Backend, Low Latency
- **Published:** September 21, 2026
- **Apply:** https://arc.dev/remote-jobs/j/redirect/plrepggxjl

## About the Role

We're looking for a Senior iOS Engineer to own the iOS experience and help define how AI feels, responds and performs in users' hands.

You'll be building a production-grade iOS application where AI is central to the product, with performance, reliability and user trust critical to the experience., * Strong SwiftUI experience.

 * Hands-on experience integrating AI/ML features into mobile applications.
 * Strong understanding of async/await, concurrency and background tasks.
 * Strong iOS performance and memory optimisation skills.
 * Experience shipping and maintaining production iOS apps.
 * Comfortable building for latency, partial failures and non-deterministic AI behaviour.
 * Exposure to CoreML or on-device ML is a plus.
 * Familiarity with feature flags / remote configuration.
 * Strong intuition for AI UX and building user trust around AI.

## Description

* Build and maintain production iOS applications using Swift and SwiftUI.
 * Integrate AI-powered features through backend APIs.
 * Build UX for streaming responses, loading states, retries, fallbacks and long-running workflows.
 * Optimise performance, memory usage and battery efficiency.
 * Capture user feedback and signals to support AI evaluation and iteration.
 * Work closely with backend and ML engineers on APIs and system behaviour.
 * Maintain high standards of App Store quality, stability and reliability.
 * Explore on-device AI/ML using CoreML or TensorFlow Lite.


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