Agent UX Designer

Decagon is a leading conversational AI platform that enables major enterprise brands to deliver personalized customer experiences through intelligent agents. The company powers interactions across voice, chat, email, SMS and other channels for customers like Avis Budget Group, Block's Cash App and Square, Chime, Oura Health, and Hunter Douglas. Backed by top-tier investors including a16z, Accel, and Bain Capital Ventures, Decagon is transforming how companies think about customer engagement—moving beyond traditional support models toward faster resolutions and richer relationships powered by AI.

The conversational AI space has experienced explosive growth as large language models have matured, and the market for AI hiring has surged accordingly. Today's most successful AI deployments require ongoing refinement and expert guidance throughout their lifecycle, not a "set and forget" approach. This reality has created strong demand for professionals who can bridge the gap between cutting-edge AI capabilities and real-world user experience requirements.

In this role on Decagon's Customer Team, you'll design and refine AI conversation experiences that serve enterprise customers worldwide. You'll work across voice, chat, SMS, and email channels to ensure interactions feel natural, appropriate, and effective. Your work will span research, design, enablement, and product strategy as you help define what excellent AI conversations look and sound like at scale.

What you'll do

• Design and optimize enterprise-grade conversational AI experiences across multiple channels, with particular focus on voice
• Advise customers and internal teams on conversation design principles and voice selection strategy
• Evaluate voice quality and interaction patterns across different providers, languages, and use cases
• Build repeatable evaluation frameworks, rubrics, and assessment processes that allow best practices to scale across deployments
• Enable Decagon's Customer team to apply strong design judgment independently through documentation and enablement
• Partner with Engineering and Product teams to translate field insights into platform improvements and address quality gaps
• Share learnings and create documentation on best practices to maintain consistency and raise quality standards

What you'll bring

• Three to five-plus years of relevant experience such as voice experience design, conversation design, product management, or applied linguistics
• Demonstrated ability to build evaluation frameworks, rubrics, or QA processes
• Strong communication skills across both technical and business contexts
• Comfort working close to the product in a fast-moving environment
• Proven ability to work directly with enterprise customers and translate their needs into actionable improvements

Nice to have

• Native or professional fluency in Spanish or familiarity with additional languages
• Experience working with text-to-speech providers or speech synthesis tools
• Hands-on experience deploying frontier AI tools in enterprise or high-impact settings

What they offer

• Compensation of 180K to 220K annually plus equity
• Medical, dental, and vision coverage for you and your family
• Life insurance, disability benefits, and retirement plan
• Parental leave and fertility and family building benefits through Carrot
• Monthly wellness and lifestyle stipend
• Daily office lunches and snacks
• Flexible vacation policy