AI Conversation Designer: Voice, Tone & Trust

Navan; United States; On-site; USD 97,000 - 148,000; Full time

Job summary

Navan is expanding its Tel Aviv office and seeks a Conversation Designer to join Navan Edge, our AI-first product for frequent business travelers. You’ll shape the agent's voice, tone and behavior, and ensure clear, human-sounding interactions across chat, voice and prompts.

You'll test, iterate, and write copy for agent responses, onboarding, errors and edge cases, and collaborate with Product, Design, Data and Marketing to earn traveler trust and deliver consistent experiences.

Qualifications

• 5+ years in conversation design, UX writing or content design.
• Native-level English with strong nuance and rhythm.
• Hands-on design for chatbots, AI assistants or LLM-powered agents.
• Portfolio showing voice/personality development in real dialogue.

Responsibilities

• Define AI agent tone, voice, and personality with clear guidelines.
• Test and iterate the agent’s voice; build evaluation sets and refine.
• Write conversational copy for agent responses, onboarding, prompts, errors, and edge cases.
• Design agent behavior for delays, cancellations, misunderstandings, and handoffs to humans.
• Maintain voice consistency across chat, voice and visual surfaces from first message to follow-up.

Skills

Conversation design

UX writing

Content design

LLM prompting

Portfolio development

Job description

Navan is expanding its Tel Aviv office and seeks a Conversation Designer to join Navan Edge, our AI-first product for frequent business travelers. You’ll shape the agent's voice, tone and behavior, and ensure clear, human-sounding interactions across chat, voice and prompts.

You'll test, iterate, and write copy for agent responses, onboarding, errors and edge cases, and collaborate with Product, Design, Data and Marketing to earn traveler trust and deliver consistent experiences.