Senior Product Designer (San Francisco, CA)
Senior Product Designer (hired via Syndesus for a Y Combinator-backed voice AI client) based in San Francisco. Owns end-to-end design of real-time AI voice agent products — from concepts and PRDs through shipped features — including customer interviews, UX standards, and building the design system.
- Compensation
- Not disclosed
- Location
- Not listed
- Work setup
- Not specified
- Seniority
- Senior
- Employment
- Not specified
- Experience
- 5+ years
- Category
- Design
- Posted
Must have
- 5+ years of experience as a Product Designer working on shipped products
- Strong user-centered design background (HCI, design, or equivalent experience)
- Excellent product taste and strong sense of usability, hierarchy, and visual clarity
- Detail-oriented with deep care for polish and consistency
- Comfortable working closely with engineers, PMs, and founders to shape product direction
- Comfortable operating in a fast-moving startup environment with ambiguity
- Enjoys owning problems end-to-end rather than working within a narrow design scope
- Cares deeply about building products that are easy to use and delightful
Full description
Senior Product Designer
Our client is a fast-growing, Y Combinator-backed voice AI company whose platform runs real-time AI voice agents for large enterprises in healthcare, travel, technology and retail.
They are building infrastructure and tools that power real-time AI voice agents used by fast-growing companies. Design quality matters here every interaction happens in real time, under pressure, with real users.
As a Product Designer, you’ll own end-to-end product design across core user workflows. You’ll work directly with founders, engineers, and customers to shape features from first principles, not just polish UI after decisions are made.
This is a high-ownership role with real influence over product direction, UX quality, and design standards.
KEY RESPONSIBILITIES
- 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 their 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
- Have 5+ years of experience as a Product Designer working on shipped products.
- Have a strong user-centered design background (HCI, design, or equivalent experience).
- Have excellent product taste and a strong sense of usability, hierarchy, and visual clarity.
- Are detail-oriented and care deeply about polish and consistency.
- Enjoy working closely with engineers, PMs, and founders to shape product direction.
- Are comfortable operating in a fast-moving startup environment with ambiguity.