Senior iOS Software Engineer

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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