3 days ago
London, United KingdomSenior
Responsibilities
- Design and ship conversational interfaces and AI-driven UX patterns on iOS.
- Architect and build production-grade Swift features using async/await, structured concurrency, and modern iOS APIs.
- Implement context-aware experiences using behavior, preferences, and app state with strong performance and privacy considerations.
- Use analytics, metrics, experimentation, A/B testing, and logging to iterate on features and improve quality.
- Translate complex AI/ML capabilities into intuitive mobile interactions.
- Use AI-assisted development tools while maintaining a high-quality, secure, and well-tested codebase.
- Collaborate with product, design, and backend teams.
Requirements
- 5+ years of professional development experience with strong Swift skills and experience building high-quality iOS applications.
- Deep knowledge of Swift, the iOS SDK, Swift concurrency, async/await, Task, actors, structured concurrency, and modern GCD usage.
- Production experience with SwiftUI; familiarity with UIKit and interoperability is a plus.
- Experience with Combine or other reactive patterns and judgment about when to use them versus async/await.
- Strong understanding of iOS architecture, modularization, and stateful or real-time feature development.
- Experience with JSON, REST, WebSockets, streaming APIs, robust networking, error handling, retries, and offline support.
- Experience with offline storage, background processing, threading, and push notifications.
- Familiarity with chat, agents, multimodal UI, conversational UX, LLM APIs, prompt design, latency handling, fallbacks, and guardrails.
- Experience using AI development tools such as Claude Code or GitHub Copilot with attention to code quality and security.
- Track record building consumer-facing apps, ideally including App Store launches and iteration based on user feedback and metrics.
- BS in Computer Science or a related technical field.
Tech Stack
iOSSwiftSwiftUI
Categories
AI ApplicationsMobile
About Navan
Navan builds an AI-powered travel and expense management platform for businesses, combining online booking, spend controls, automated expense reporting, and corporate cards with 24/7 support. The company sells its T&E software and payments tools to enterprises and high-growth firms, generating revenue from subscriptions, travel transactions, and card interchange. Founded in 2015 and headquartered in Palo Alto, it rebranded from TripActions and serves customers globally.