Senior iOS Engineer: AI-Powered Conversational UX

Navan; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

Navan is building the next generation of travel and expense technology. We are seeking a senior iOS engineer to design and ship AI-driven UX patterns on iOS, focusing on performance, privacy, and seamless mobile interactions.

You will work at the intersection of AI and mobile, shaping how travelers interact with cutting-edge features on iOS. You will use Swift, SwiftUI, and modern concurrency to craft context-aware experiences, collaborate with product and backend teams, and leverage AI tooling

Qualifications

• 5+ years of professional iOS development experience.
• Strong Swift skills and iOS SDK mastery.
• Experience with Swift concurrency (async/await, actors).
• Proficient in SwiftUI; UIKit knowledge a plus.

Responsibilities

• Design and ship UX patterns for conversational interfaces and AI-driven experiences on iOS.
• Architect and build production-grade features using Swift and modern iOS APIs.
• Lead implementation of context-aware experiences with emphasis on performance and privacy.
• Use analytics, A/B tests, and logging to iterate and improve features.

Skills

Swift

SwiftUI

async/await

iOS architecture

JSON/REST

Combine

Push notifications

Xcode

Education

BS in Computer Science

Tools

Claude Code

GitHub Copilot

Xcode

Job description

Navan is building the next generation of travel and expense technology. We are seeking a senior iOS engineer to design and ship AI-driven UX patterns on iOS, focusing on performance, privacy, and seamless mobile interactions.

You will work at the intersection of AI and mobile, shaping how travelers interact with cutting-edge features on iOS. You will use Swift, SwiftUI, and modern concurrency to craft context-aware experiences, collaborate with product and backend teams, and leverage AI tooling