iOS AI-First Engineer: SwiftUI, Proactive Apps

ActAI; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

ActAI is building an agent-first mobile communication app that aims to bring AI into everyday conversations and workflows. As an iOS Software Engineer, you own the iOS client experience, ensuring AI interactions are fast, reliable, and trustworthy for users.

You will build production-grade iOS apps with Swift and SwiftUI, integrate AI-powered features via backend APIs, and collaborate with backend and ML engineers to design resilient, low-latency experiences.

Qualifications

• 3+ years of iOS development experience using Swift.
• Hands-on experience integrating AI-powered features into mobile apps.
• Strong understanding of async/await, concurrency, and background tasks.
• Solid iOS performance and memory optimization skills.
• Experience shipping and maintaining production iOS apps.
• Comfort designing for latency, partial failure, and non-deterministic AI behavior.
• Exposure to CoreML or light on-device ML.
• Familiarity with feature flags or remote configuration systems.
• Strong intuition for AI UX patterns and user trust considerations.

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, streaming responses, retries, and fallbacks.
• Optimize performance, memory usage, and battery efficiency.
• Capture user signals and feedback to support AI evaluation and iteration.
• Collaborate closely with backend and ML engineers on API design and system behavior.
• Maintain high App Store quality, stability, and production reliability.

Skills

iOS development

Swift

SwiftUI

AI integration

Async/await

Performance optimization

Memory optimization

Production apps

AI UX patterns

Tools

CoreML

TensorFlow Lite

Job description

ActAI is building an agent-first mobile communication app that aims to bring AI into everyday conversations and workflows. As an iOS Software Engineer, you own the iOS client experience, ensuring AI interactions are fast, reliable, and trustworthy for users.

You will build production-grade iOS apps with Swift and SwiftUI, integrate AI-powered features via backend APIs, and collaborate with backend and ML engineers to design resilient, low-latency experiences.