Senior Product Designer

Customer.io is a platform used by over 9,000 companies to enhance their automated communication. The Senior Product Designer will own the design of a product area from strategy to implementation, ensuring a seamless user experience and contributing to the design system.

Responsibilities:

• Own the design of a product area end to end — strategy, flows, edge cases, and shipped quality
• Design flows, not just screens — identify where users will get stuck before they do, and treat self-service (onboarding, activation, recovery) as a primary discipline
• Close the gap between design and shipped product — pair with engineering during implementation, catch regressions, and contribute directly in code: Pluma components, production UI fixes, interaction prototypes
• Contribute actively to Pluma, our design system — use it well, propose extensions thoughtfully, fix inconsistencies, and step into stewardship of components adjacent to your work
• Develop a point of view on AI in your product area — prototype the interaction, not just the screen, and treat uncertainty, latency, and reversibility as real design factors
• Partner with PM and Engineering on roadmap and tradeoffs — bring UX into the conversation early, push back when it shortchanges the user, and own the quality of your area over time
• Mentor designers earlier in their career through pairing, critique, and the example set by your own work

Requirements:

• 5+ years of product design experience with a portfolio demonstrating craft, ownership, and a clear point of view on shipped work
• Strong flow literacy — you design end-to-end experiences across states, edge cases, and recovery paths, not isolated screens
• Closes the design-to-implementation gap — partners tightly with engineering, catches regressions, and contributes directly in code. Code fluency is a real and growing expectation at this level
• Experienced power user of a design system — you can describe how you've extended it thoughtfully, where you've pushed back on a pattern, and how you decide when to use a primitive vs. propose a new one
• Has designed or shipped AI-involved interfaces and can talk specifically about how you handled uncertainty, latency, or reversibility — even at small scale
• B2B SaaS experience with complex, data-driven interfaces — you understand systems, not just screens
• Strong communication and critique skills — brings rationale to decisions, gives feedback that improves the work, and can change your mind when you find better evidence