Senior Product Designer

Urban Ridge Supplies•New York, NY

22d•Onsite

About The Position

Cinder is hiring a second senior designer to own significant product surfaces end to end as its product expands into new agent-facing workflows, product lines, and brand and go-to-market work. The role operates as a co-lead and thought partner to the current designer, with independent ownership of assigned surfaces and shared responsibility for design direction and craft standards. The designer is expected to become fluent in Cinder’s product and make thoughtful design decisions independently. The designer will work directly with product and engineering from problem framing through shipped UI. The position also includes customer discovery, high-fidelity prototyping, design-system work, direct critique, and broader design projects spanning brand and marketing. Cinder is a small, fast-moving team backed by Accel and Y Combinator, focused on solving customer problems. The company’s software helps major internet platforms enforce policy, deploy AI agents against abuse, investigate threats, file NCMEC reports, and demonstrate the effectiveness of safety programs.

Requirements

6+ years designing software at senior to staff level.
Substantial experience with technical products built for expert users.
Strong visual and graphic design craft, including the ability to judge quality and produce clean work without relying on AI tools.
Expertise in Figma, including wireframing, flows, prototyping, and production-grade delivery.
Fluency with AI coding agents such as Cursor, Claude, and Codex for design and prototyping.
Ability to work through ambiguity, create clarity, and make decisions without a completed PRD or research.
Proactive approach to identifying and addressing design debt.
Comfort speaking directly with customers and translating their feedback into product opportunities.
Strong systems thinking and ability to understand how changes in one part of a product affect others.
Experience building or maintaining a design system, including component libraries or patterns.
Front-end fluency, including comfort prototyping in code and taking on interim engineer-designer work.
Experience designing SaaS products, especially multi-product platforms and information-dense interfaces.
Empathy for the Trust & Safety problem space.

Nice To Haves

Experience designing AI or agentic products.
Motion design skills or a sense for delightful detail.
Comfort with website CMS builders for brand and marketing support.
Interest in helping build design-team culture and rituals from scratch, such as critiques, standups, and lunch-and-learns.
A design background or lineage different from the backgrounds already represented on the team.

Responsibilities

Own end-to-end design for assigned product surfaces, from framing problems through shipped UI, in partnership with product and engineering.
Run discovery with product by speaking with Trust & Safety customers and users, and translate findings into design direction and actionable Linear tickets.
Create high-fidelity prototypes to pressure-test workflows and align with engineering before development begins.
Contribute to and help maintain the design system as the product scales.
Proactively own design projects beyond the core product, including potential brand, go-to-market, deck, website, and marketing work.
Participate in design critiques, give and receive direct feedback, and help maintain a high craft bar.
Work as a co-lead and thought partner with the current designer, sharing responsibility for design direction and craft standards.