Senior iOS Engineer — AI-Driven Travel & UX

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

Job summary

Navan is building the next generation of travel and expense AI-powered technology in the UK. We are hiring an iOS engineer to shape how travelers interact with AI-enabled experiences on iOS, focusing on a Swift-first approach.

You will design UX patterns for conversational interfaces, implement production-grade features using async/await, and collaborate across product, design, and backend in a fast, privacy-conscious environment to deliver high-quality mobile experiences.

Qualifications

• 5+ years of professional iOS development with Swift
• Strong understanding of Swift and iOS SDK, including concurrency and SwiftUI
• Experience with offline storage, networking (REST/WebSocket) and push notifications

Responsibilities

• Design and ship innovative UX patterns for conversational interfaces and AI-driven experiences on iOS
• Architect and build Swift-first, production-grade features using async/await, structured concurrency and modern iOS APIs
• Lead implementation of context-aware experiences using behavior, preferences, and app state with a focus on performance and privacy
• Use analytics, A/B tests, and logging to iterate on features and improve quality
• Turn complex AI/ML capabilities into simple mobile interactions
• Collaborate across product, design, and backend in a fast-moving environment

Skills

Swift

iOS Development

SwiftUI

Async/Await

MVVM Architecture

REST/WebSockets

Education

BS in Computer Science or related field

Tools

Claude Code

GitHub Copilot

Job description

Navan is building the next generation of travel and expense AI-powered technology in the UK. We are hiring an iOS engineer to shape how travelers interact with AI-enabled experiences on iOS, focusing on a Swift-first approach.

You will design UX patterns for conversational interfaces, implement production-grade features using async/await, and collaborate across product, design, and backend in a fast, privacy-conscious environment to deliver high-quality mobile experiences.