Senior iOS Software Engineer

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Senior iOS Software Engineer in Others new

Navan
Full time
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11/03/2026
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Berlin, Germany

Responsibilities

Design and ship conversational interfaces and AI-driven experiences on iOS.
Architect and build production-grade Swift features using async/await, structured concurrency, and modern iOS APIs.
Lead context-aware experiences using behavior, preferences, and app state, with emphasis on performance and privacy.
Use analytics, A/B tests, logging, metrics, experimentation, and validation to improve features and quality.
Translate complex AI and ML capabilities into simple mobile interactions.
Use Claude Code and other LLM-based coding assistants while maintaining a high-quality, well-tested codebase.
Collaborate with product, design, and backend teams.

Requirements

5+ years of professional development experience and strong Swift skills building high-quality iOS apps.
Deep understanding 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 understanding of when to use them versus async/await.
Strong understanding of iOS architecture, including patterns such as MVVM, Clean Architecture, and modularization.
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.
Interest in new interaction models such as chat, agents, and multimodal UI.
Experience using AI development tools such as Claude Code and GitHub Copilot with sound judgment about code quality and security.
Familiarity with LLM-driven features, prompt design, LLM API integration, latency management, fallbacks, guardrails, and/or conversational UX.
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.

Navan

Navan is the global AI-powered business travel and expense platform that makes travel easy for frequent travelers. From finding flights and hotels, to automating expense reconciliation, with 24/7 support along the way, Navan delivers an intuitive experience travelers love and finance teams rely o...

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