Senior Software Engineer (iOS)

Navan; New York (NY); On-site; USD 140,000 - 200,000; Full time

Benefits offered by this job

Parental leave

Commuter benefits

Healthcare

Flexible Vacation

Health and Wellness

Fuel for Connection

Pet Friendly

IATAN travel discounts

401k

Connectivity Allowance

Learning & Development

Job summary

Navan is building the next generation of travel and expense technology. We craft a Swift-first iOS app with AI-driven features and rich conversational UX.

You will help define interactions, performance, and privacy while shipping production-grade code on iOS. You’ll work at the intersection of AI and mobile, leveraging MVVM, Clean Architecture, and modern Swift concurrency to deliver context-aware experiences.

Qualifications

• 5+ years of professional iOS development experience.
• Strong Swift skills and iOS app shipping experience.
• Familiarity with LLM-driven features and conversational UX.
• Strong knowledge of iOS architecture (MVVM, Clean Architecture).
• Experience with offline storage, background processing, threading.
• BS in Computer Science or related technical field.
• Understanding of JSON, REST, WebSockets, networking robustness.
• Curiosity about new interaction models (chat, agents, multimodal UI).
• Swift concurrency (async/await, Task, actors) and GCD usage.

Responsibilities

• Design and ship innovative UX patterns for conversational interfaces and AI-driven experiences on iOS.
• Architect and build Swift-first, production-grade features with modern iOS APIs.
• Lead context-aware experiences using user behavior and app state with performance and privacy in mind.
• Collaborate with product, design, and backend in a fast-moving environment.

Skills

Swift

SwiftUI

UIKit

Combine

Async/Await

MVVM

Clean Architecture

LLM integration

AI UX

REST/WebSockets

Education

BS in Computer Science

Tools

JSON

Push notifications

Job 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


• 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

Benefits

• Parental leave


• Commuter benefits


• Healthcare


• Flexible Vacation


• Health and Wellness


• Fuel for Connection


• Pet Friendly


• IATAN (travel‑related discounts)


• 401k (retirement plan)


• Connectivity Allowance


• Learning & Development

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