Sr. Software Engineer, iOS at Navan | USA | Rezi

Sr. Software Engineer, iOS at Navan

Sr. Software Engineer, iOS

Navan · USA

2 weeks ago

Sr. Software Engineer, iOS

Navan · USA

18 days ago
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About the Role

We are developing the next generation of travel and expense technology using AI and large language models. Our mobile platform combines cutting-edge AI with strong product and UX to provide travelers with an intelligent companion through a conversational UI and immersive interactions.

Responsibilities

  • 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 to iterate on features and improve quality.
  • Turn complex AI/ML capabilities into simple, intuitive mobile interactions.
  • Use AI tools to accelerate development while maintaining a high-quality, well-tested codebase.
  • Collaborate across product, design, and backend in a fast-moving environment.

Requirements

  • 5+ years of professional development experience with strong Swift skills, building high-quality iOS apps.
  • Deep understanding of Swift and the iOS SDK.
  • Strong grasp of iOS architecture suitable for AI-powered, stateful, and real-time features.
  • Solid understanding of JSON, REST, WebSockets, streaming APIs and robust networking layers.
  • Experience with offline storage, background processing, threading, and push notifications.
  • Experience using AI development tools as part of your workflow.
  • Familiarity with LLM-driven features and/or conversational UX.
  • Track record building consumer-facing apps, ideally shipped to the App Store and iterated from user feedback and metrics.

Skills

  • Swift concurrency (async/await, Task, actors), structured concurrency, and modern GCD usage
  • SwiftUI for building production UIs
  • UIKit and interoperability
  • Combine or other reactive patterns
  • MVVM, Clean Architecture, modularization
  • JSON, REST, WebSockets, streaming APIs
  • Offline storage, background processing, threading, push notifications
  • Chat, agents, multimodal UI
  • AI development tools (e.g., Claude Code, GitHub Copilot)
  • Prompt design, integrating LLM APIs, handling latency, fallbacks, guardrails

Experience Level

  • 5+ years of professional development experience

Education Level

  • BS in Computer Science or related technical field

Salary/Compensations

  • $113,400—$252,000 USD

About the Company

  • 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.