Senior Product Designer — SuppCo

SuppCo, acquired by Function Health, helps people understand supplements and connect them to measurable health outcomes through product quality ratings, routine analysis, and AI-guided recommendations. The Senior Product Designer will lead hands-on product design across mobile and web experiences, own and scale the design system, optimize critical funnels, and shape membership, commerce, health optimization, and AI-native experiences.

Responsibilities:

• Design the product. Own end-to-end product design across SuppCo's mobile and web experiences — problem framing, IA, flows, interaction, and polished, production-ready UI. You'll take on the hardest and highest-stakes surfaces
• Own and scale our design system. We have a design system, but your job is to make it hold up and evolve. Mature the components, patterns, tokens, and documentation so that a fast-moving, AI-accelerated engineering team ships consistent, high-quality work without design reviewing every screen. Drive real impact, not just a nice Figma
• Optimize critical funnels and experiences. Push our most important flows to perform even better. From onboarding to activation and re-engagement, you will help us relentlessly optimize the funnels that matter most
• Design the membership and commerce experience. Take on the surfaces where users discover products, understand value, and transact — the marquee initiative for the business over the next several quarters
• Connect SuppCo and Function. Improve the core flows that turn biomarker insight into supplement action and back again, so members move between the two products without seams
• Deepen the core experience. Improve the daily loop — stack management, scheduling, adherence, and AI-guided discovery through SuppIQ — so more people build a routine that sticks
• Make the case for the work. Present design clearly and persuasively to the founders, the exec team, and the company: the problem, the options you considered, the tradeoffs you made, and what you expect to change as a result. Strong opinions, clearly argued
• Ground design in evidence. Use research, feedback, and product analytics to understand behavior, then define what success looks like for your work and follow through on whether it happened. We care more about measured impact than shipped volume
• Design AI-native experiences. Shape how conversational and agentic surfaces feel — including SuppIQ and AI-driven discovery — where the interface is part language, part UI, and the patterns are still being invented

Requirements:

• 8+ years of product design experience, with a track record of shipping consumer mobile products that people actually use
• Exceptional craft. A portfolio of shipped work with visible attention to typography, layout, motion, and detail. We will look closely at the pixels
• Design systems experience with evidence of adoption. You've built a system a team genuinely worked in — or inherited someone else's and made it materially better without insisting on a rewrite. Either way, you can talk about how you got engineers to actually use it, what you compromised on, and how you handled the exceptions
• Systems thinking beyond components. You think in flows, information architecture, and end-to-end journeys, and you can hold a whole product in your head — not just the screen in front of you
• You can present. You can walk a room through the problem, the options you killed, the tradeoff you made, and what happened afterward. You write clearly. You persuade with reasoning rather than taste
• Commerce, subscription, or transactional product experience. You've designed purchase paths, merchandising, or membership experiences and understand how design choices move conversion and retention
• AI fluency. You use AI tools to accelerate your own work, and you're comfortable designing products where AI does some of the thinking. You see it as leverage, not a trend
• Self-sufficient. You set your own process, run your own research when you need it, and stay effective in ambiguity and fast organizational change. On a team this size, nobody hands you a brief
• You want to stay hands-on. You're at your best doing the work at the highest level, and you want your next role to deepen your craft and widen your influence rather than step away from the work
• Passion for health and wellness and for products that measurably improve people's lives
• New York Tri-State area candidates are preferred but not required
• You prototype in code, or with AI tools, to pressure-test interactions before they get built
• You know when AI is helpful, and when it's not and are constantly retesting the boundaries
• Background in health, wellness, nutrition, diagnostics, or the supplement industry
• Marketplace or e-commerce design depth — search, browse, product detail pages, checkout
• Experience designing data-dense consumer interfaces: scores, charts, lab results, or anything that has to make complex information feel simple and trustworthy
• Experience with community, social, or content-discovery products
• Experience with habit-forming products — tracking, streaks, reminders, adherence
• Brand and visual identity range beyond product UI
• Previous experience at early-stage startups (seed to Series B)