Jobs Companies Navan Senior (iOS) Software Engineer

Sobre esta vaga de Senior (iOS) Software Engineer na Navan

Navan · Presencial · London, UK

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. 

  • 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. 

Please refer to our Candidate Privacy Notice for more information about our processing of personal data, and your rights.

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ABOUT TRIPACTIONS

TripActions is the fastest-growing corporate travel platform disrupting a $1.5T industry and shaping the future of business travel.

TripActions is a story of inspiration born of frustration. Road warriors and co-founders Ariel Cohen and Ilan Twig believed that companies deserved a travel solution that takes the pain out of work trips –– so that their travelers can focus on being productive and meeting in-person, not wasting valuable time booking travel. So in 2015, they created TripActions. Since then, we’ve been a mission to power the face-to-face, in-person connections that move people, ideas and businesses forward.

TripActions’ platform offers a vast selection of inventory that travelers can choose from, a personalized, intuitive user interface driven by machine learning, and 24/7 proactive real human, customer support. Companies enjoy complete travel program visibility, over 30% cost savings on average and seamless integrations with their HR and expense systems.

Globally, TripActions has grown to over 600 employees across 7 offices in 4 countries. We support over 1,500 customers, with innovative brands like Lyft, Dropbox, Sara Lee Frozen Bakery, Allbirds, Robinhood and the ACLU relying on TripActions for their business travel needs. As one of Silicon Valley’s newest “unicorns”, TripActions has a valuation north of $1B and a total of $232M in funding. We’ve recently received $154M in our Series C funding round –– led by new investor Andreessen Horowitz, with participation from repeat investors Lightspeed Venture Partners, Zeev Ventures and SGVC.

TripActions was recently recognized as one of Fast Company’s Most Innovative Companies for 2019, #12 in LinkedIn’s Top Startups 2018 and #3 in the U.S. for Happiest Employees by Comparably.

We’re redefining what it means to travel for work. Come help us build the future of business travel.

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