Agent Experience Designer

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. Your background looks something like this: 5+ years of relevant experience (e.g., voice experience design, conversation designer, product manager, applied linguistics, etc.). Hands-on experience with voice — conversational AI, speech synthesis, or audio production. Experience migrating NLU systems to LLM and understanding key use cases for RAG functionality improvements. 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. Compensation: $160k - 200k + Offers Equity. Benefits: Medical, Dental, and Vision benefits for you and your family; Life Insurance and Disability Benefits; Retirement Plan (e.g., 401K, pension); Parental Leave; Fertility and family building benefits through Carrot; Monthly stipend to support your wellness, lifestyle, and work-life balance; Daily lunches and snacks in the office to keep you at your best; Take what you need vacation policy (subject to local requirements; UK employees receive 25 days of statutory leave). These benefits are described in more detail in Decagon’s policies, may vary by location, and can change at any time according to applicable compensation and benefits plans.