Senior (iOS) Software Engineer

Navan; Berlin; Vor Ort; EUR 90.000 - 120.000; Vollzeit

Zusammenfassung

Navan is building the next generation of travel and expense (T&E) technology using AI. This iOS-focused role helps define how travelers interact with our product on iPhone, blending AI with strong UX. You’ll design and ship Swift-first features, using async/await and SwiftUI, while championing performance, privacy, and robust networking.

Collaboration with product, design, and backend runs at pace. We value hands-on builders who ship to the App Store, measure outcomes with analytics and A/B

Qualifikationen

• 5+ years of professional iOS development experience with Swift
• Proficient in Swift, SwiftUI, and iOS SDK
• Experience with async/await, concurrency, and modern iOS APIs
• Strong understanding of MVVM/architecture and networking layers
• Familiarity with AI/ML integration and prompt design

Aufgaben

• 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 and modern iOS APIs
• Lead context-aware experiences with performance and privacy in mind
• Use analytics and A/B testing to iterate and improve features
• Turn AI/ML capabilities into intuitive mobile interactions
• Leverage AI tools to accelerate development while ensuring code quality and security
• Collaborate with product, design, and backend teams in a fast-paced environment

Kenntnisse

Swift

iOS development

SwiftUI

Async/Await

MVVM architecture

REST/WebSockets

AI/ML integration

Performance optimization

Ausbildung

BS in Computer Science or related field

Tools

Claude Code

GitHub Copilot

LLM APIs

Jobbeschreibung

We’re building the next generation of travel and expense (T&E) technology using AI and large language models. Our mobile platform blends cutting-edge AI with strong product and UX so travelers get an intelligent companion, not just another booking app. The app should understand needs, anticipate requests, and deliver personalized help through conversational UI and rich, immersive interactions.
You’ll work at the intersection of AI and mobile, helping define how travelers interact with this kind of product on iOS.

What You’ll Do

• 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 an emphasis on performance and privacy
• Use metrics, experimentation, and validation (analytics, A/B tests, logging) to iterate on features and improve quality over time
• Turn complex AI/ML capabilities into simple, intuitive mobile interactions
• Use AI tools (e.g., Claude Code / LLM-based coding assistants) to accelerate development while maintaining a high-quality, well-tested codebase
• Collaborate across product, design, and backend in a fast-moving environment

What We’re Looking For

• 5+ years of professional development experience with strong Swift skills, building high quality iOS apps
• Deep understanding of Swift and the iOS SDK, including:
• Swift concurrency (async/await, Task, actors), structured concurrency, and modern GCD usage
• SwiftUI for building production UIs; familiarity with UIKit and interoperability is a plus
• Experience with Combine or other reactive patterns, and when to prefer them vs. async/await
• Strong grasp of iOS architecture (e.g., MVVM, Clean Architecture, modularization) suitable for AI-powered, stateful, and real-time features
• Solid understanding of JSON, REST, WebSockets, streaming APIs and robust networking layers (error handling, retries, offline support)
• Experience with offline storage, background processing, threading and push notifications
• Curiosity about new interaction models (chat, agents, multimodal UI, etc.)
• Experience using AI development tools (e.g., Claude Code, GitHub Copilot, etc.) as part of your workflow, with good judgment about code quality and security
• Familiarity with LLM-driven features (prompt design, integrating LLM APIs, handling latency, fallbacks, guardrails) and/or conversational UX
• Track record building consumer-facing apps; ideally you’ve shipped to the App Store and iterated from user feedback and metrics
• BS in Computer Science or related technical field

Navan uses AI-assisted Automated Employment Decision Tool (Metaview) to assist with evaluating resumes against job qualifications for this role. All final decisions are made by human recruiters and hiring managers.

Human oversight:

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