Senior iOS Software Engineer
Navan
Salary undisclosed
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Description
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: Metaview does not automatically reject candidates or make final hiring decisions. Our recruiters and hiring managers review all outputs and make the final hiring decision regarding every application.
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Your rights: If you prefer to have your application reviewed without AI assistance, you may request a human evaluation by entering your email here. Your decision to do so will not affect how your candidacy is evaluated.
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Benefits
- professional development
About this role
Navan is building AI-powered travel and expense software, and this iOS role sits at the heart of that vision. You'd be designing and shipping conversational interfaces and AI-driven experiences on mobile—turning complex LLM capabilities into intuitive, performant interactions that travelers actually want to use. This means working across the full stack of modern iOS development: architecting features with Swift concurrency and SwiftUI, integrating real-time AI APIs, handling offline scenarios, and using metrics and experimentation to validate what works.
The role demands deep iOS expertise—5+ years of professional experience with strong Swift fundamentals, including async/await, structured concurrency, and modern architecture patterns. You'll need solid grounding in networking (REST, WebSockets, streaming), offline storage, and the practical side of LLM integration: prompt design, latency handling, and fallbacks. Familiarity with AI development tools like Claude Code or GitHub Copilot is expected, not optional, and you should have a track record shipping consumer apps to the App Store and iterating based on real user feedback.
This is an in-office role in Berlin for someone who thrives at the intersection of AI and mobile UX—someone curious about new interaction models and comfortable moving fast in a cross-functional environment with product, design, and backend teams.
How this employer is doing
solid
- H1B: Sponsors Visas
- Financial News
- Recently Raised Funding
- Sponsors Visas
In the news
Navan's Stock Has Clawed Back to Its IPO Price After a Brutal Year, Startup Fortune
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Pay for this role
The employer didn't post a pay range for this role. That usually means pay is set in negotiation, which favors whoever arrives with numbers. Check ranges on comparable Senior iOS Software Engineer postings in Berlin, and analyze any offer before you accept it.
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