Conversation Designer, Agent Voice & Personality

Navan is on a mission to make travel easy for every frequent traveler, and in the process to transform travel and expense management as the world knows it. With over 50 global offices and unicorn status since 2019, Navan has rapidly scaled while disrupting the corporate travel industry.

We’re expanding our Tel Aviv office and looking for a Conversation Designer to join Navan Edge, our new AI-first product built for frequent business travelers. You’ll decide who our agent is: how it sounds, how it thinks out loud, how it handles a delayed flight at 2 a.m., and how it earns a traveler’s trust one message at a time. 

If you’re the person who can spot an off-tone sentence instantly, explain exactly why it’s wrong, and rewrite it so it sounds human, this role is for you.

What You’ll Do:

• Define our AI agent’s tone of voice, character and personality, and turn them into clear, usable guidelines for the agent and the team.
• Test and iterate on the agent’s voice. Build evaluation criteria and test sets, review real conversations, and refine based on what you find.
• Write conversational copy across the product, including agent responses, onboarding, prompts and suggestions, errors and edge cases, notifications, and the in-between moments.
• Design how the agent behaves when things go wrong: dela