Senior Product Designer

About the role

Retell AI is using first-principles thinking to reimagine the call center with cutting-edge voice AI. Thousands of companies now use Retell's AI voice agents to handle sales, support, and logistics calls that once required large teams of human agents. The role owns the end-to-end product design for core user workflows, working directly with founders, engineers, and customers to shape features from first principles rather than polishing after decisions are made. This is a high-ownership position with real influence over product direction, UX quality, and design standards in a fast-moving environment. The designer will be responsible for turning complex, technical workflows into clear, intuitive, and human experiences that power real-time interactions under pressure. You will build and evolve Retell's design system, setting standards for consistency, scalability, and craftsmanship as the product and team grow.

Key facts

What you'll do

• Own the product experience end-to-end, from early concepts and PRDs to polished, shipped features used by real customers in high-stakes, real-time scenarios.
• Shape how users interact with AI voice agents, turning complex, technical workflows into clear, intuitive, and human experiences.
• Work side-by-side with engineers and founders to define, refine, and ship features, ensuring design intent and quality are preserved all the way to production.
• Be the voice of the user, conduct customer interviews, gather feedback, and translate real user pain points into thoughtful design solutions.
• Proactively raise the UX bar by identifying friction, inconsistencies, and opportunities across the product, and driving improvements from idea to launch.
• Build and evolve Retell's design system, setting standards for consistency, scalability, and craftsmanship as the product and team grow.
• Hold a high bar for craft and quality, sweating the details and refusing to compromise on clarity, usability, or polish.
• Influence product direction through design, contributing strong opinions, clear rationale, and taste-driven decisions that shape what we build next.
• You might thrive if you have 5+ years of experience as a Product Designer working on shipped products.
• You have a strong user-centered design background (HCI, design, or equivalent experience).
• You have excellent product taste and a strong sense of usability, hierarchy, and visual clarity.
• You are detail-oriented and care deeply about polish and consistency.
• You enjoy working closely with engineers, PMs, and founders to shape product direction.
• You are comfortable operating in a fast-moving startup environment with ambiguity.
• You enjoy owning problems end-to-end rather than working within a narrow design scope.
• You care deeply about building products that are easy to use and delightful.

Requirements

• Must have 5+ years of experience as a Product Designer working on shipped products.
• Must possess a strong user-centered design background rooted in HCI, design, or equivalent professional experience.
• Must demonstrate excellent product taste with a robust understanding of usability, hierarchy, and visual clarity.
• Must be detail-oriented and care deeply about polish and consistency in production interfaces.
• Must enjoy collaborating closely with engineers, PMs, and founders to actively shape product direction.
• Must be comfortable operating effectively within a fast-moving startup environment characterized by ambiguity and rapid iteration.
• Must prefer owning problems end-to-end rather than restricting work to a narrow design scope.
• Must care deeply about constructing products that are straightforward to use and provide delightful user experiences.

Nice to have

• Experience contributing to voice, telephony, or real-time interaction design.
• Familiarity with AI agents, LLM workflows, or conversational interfaces.
• Background in designing for high-stakes, enterprise, or B2B SaaS products.
• Experience with design systems at scale and contributing to component libraries.
• Prior exposure to customer research and qualitative user interviews in complex B2B settings.
• Comfort working with data, analytics, and instrumenting design decisions for measurement.
• Experience mentoring junior designers or influencing design standards across organizations.

Practical notes

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Location: Redwood City, CA, US.

• US Visas: Retell AI is open to sponsoring work authorization for qualified candidates, including H1B/H-1B, TN, L-1, E-3, F-1 (OPT/CPT), and O-1 visas.

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Engagement: Full-time.

• Compensation range: $180k - $230k, with equity provided.
• Employment is at-will and aligned with the needs of a scaling startup operating in multiple international markets.