> Markdown version of [/jobs/ext/4343854-agent-ux-designer](https://www.wearedevelopers.com/jobs/ext/4343854-agent-ux-designer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Agent UX Designer - **Company:** Decagon AI, Inc. - **Location:** San Francisco, CA, United States - **Experience:** Experienced - **Salary:** $180,000 - $220,000 - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Short Message Service, Speech Synthesis - **Published:** October 26, 2026 - **Apply:** https://www.careerbuilder.com/job-details/agent-ux-designer-san-francisco-ca--4d967c32-40d9-4093-9d6e-ff434fcfa3ba ## About the Role User Experience Design (UXD), Artificial Intelligence (AI), Customer Experience, Budgeting, Artificial Intelligence (AI) Agents, Short Messaging Service (SMS), Voice Chat, Music, Team Player, Product Lifecycle, * 3-5+ years of relevant experience (e.g., voice experience design, conversation designer, product manager, applied linguistics, etc.) * Experience building evaluation frameworks, rubrics, or QA processes * Strong communicator across technical and business contexts * Comfortable working close to the product in a fast-moving environment Even better if you have * Native or professional fluency in Spanish and/or familiarity with other languages * Experience with TTS providers or speech synthesis tools * Hands-on experience with frontier AI tools and deployment in enterprise or high-impact settings ## Description As part of the Agent Experience Design team, youll help shape what great AI conversation experiences look and sound like - across channels and languages, for enterprise customers around the world. Youll work directly with customers and internal teams to improve agent quality - especially in voice, one of our fastest growing channels - and build the systems and resources that allow us to scale your expertise. This work spans research, design, enablement, and product strategy. You might: * Advise customers and internal teams on conversation design and voice selection * Evaluate and iterate on voice quality across providers, languages, and use cases * Build playbooks, rubrics, and evaluation frameworks that scale best practices across the team * Partner with Engineering and Product to translate field insights into platform improvements Your insights will shape how Decagon deploys AI in mission-critical contexts and how we build toward the next generation of intelligent systems. In this role, you will * Design and optimize enterprise-grade AI conversation experiences across chat, voice, SMS, and email channels * Serve as a trusted advisor to customers and internal stakeholders on conversation design best practices * Evaluate voice quality and interaction patterns to maintain a high bar for naturalness and appropriateness * Build repeatable frameworks for assessing conversation and voice performance * Enable our Customer team to apply strong design judgment independently * Partner crossfunctionally with Engineering and Product to investigate quality gaps and drive improvements through clear recommendations * Share learnings and create documentation on best practices to improve consistency and raise the quality bar across deployments