AI-Powered iOS Engineer — SwiftUI & On-Device ML

ActAI; Greater London; On-site; GBP 70,000 - 110,000; Full time

Job summary

ActAI is seeking an iOS Software Engineer to own the iOS client experience, shaping how AI feels, responds, and performs in users’ hands. You will build a production-grade iOS application where AI interactions are central to the product experience, prioritizing performance, reliability, and user trust.

The role focuses on delivering responsive, low-latency experiences with memory-efficient code, integrating AI features via backend APIs, and collaborating with ML/Backend teams to evolve the

Qualifications

• 3+ years of iOS development with Swift.
• Hands-on experience integrating AI-powered features into mobile apps.
• Strong understanding of async/await, concurrency, and background tasks.

Responsibilities

• Build and maintain iOS applications using Swift and SwiftUI.
• Integrate AI-powered features through backend APIs.
• Design UX patterns for AI interactions, including loading states and streaming responses.
• Optimize performance, memory usage, and battery efficiency.
• Capture user signals and feedback to support AI evaluation and iteration.
• Collaborate with backend and ML engineers on API design and system behavior.

Skills

Swift

SwiftUI

Async/await

Memory optimization

iOS development

AI integration

Tools

CoreML

TensorFlow Lite

Remote/config flags

Job description

ActAI is seeking an iOS Software Engineer to own the iOS client experience, shaping how AI feels, responds, and performs in users’ hands. You will build a production-grade iOS application where AI interactions are central to the product experience, prioritizing performance, reliability, and user trust.

The role focuses on delivering responsive, low-latency experiences with memory-efficient code, integrating AI features via backend APIs, and collaborating with ML/Backend teams to evolve the