UX/UI Product Designer (Behavioral Design) Zürich, Switzerland

ph3About Rapidata /h3 pRapidata provides a programmatic API to human intelligence, transforming how data is generated and annotated for AI. Instead of relying on fixed workforces, we distribute micro-tasks at internet scale through digital ad infrastructure. /p pThese tasks, called Rapids, are interactive human feedback units delivered inside mobile apps in place of ads. Through a simple API call, customers submit data for evaluation, labeling, or validation, and receive real-time responses from a globally distributed crowd. /p h3The Role /h3 pWe are looking for a UX-first product designer with exceptional behavioral design instincts. Your mission is to make the Rapid experience extremely clear, trustworthy, and habit-forming — so users engage more, complete more Rapids, and produce higher-quality responses. You will iterate fast at scale (millions of users daily) and own changes end-to-end, from concept to shipped impact. /p ul lipbPrimary surface: /b Rapid (end-user app), onboarding, motivation, trust, retention /p /li lipbSecondary surface: /b Customer onboarding, messaging, landing pages, activation for B2B customers /p /li lipbImpact: /b Increase engagement, completion rates, and response quality; reduce confusion and drop-offs /p /li lipbWorking style: /b High ownership, ship weekly, test-and-learn with instrumentation /p /li lipbTeam: /b Close collaboration with engineering and ops — you drive the UX direction /p /li lipbSeniority: /b Senior / staff-level product designer profile (or equivalent portfolio proof) /p /li /ul h3What You Will Own /h3 ul lipUser (annotator) engagement with Rapids. /p /li lipOnboarding that answers: what is this, why should I do it, what do I do next, and how do I progress. /p /li lipExperimentation: run rapid, instrumented iterations (A/B tests, staged rollouts, qualitative + quantitative reads). /p /li lipTrust and legitimacy cues: reduce perceived risk, make the product feel safe and credible. /p /li lipMotivation and incentive mechanics: design feedback, rewards, pacing, and challenge so people want to continue. /p /li lipCustomer onboarding and positioning (part-time responsibility): improve clarity of the website/landing pages and the 'how to use Rapidata' experience for customers. /p /li /ul h3Key Responsibilities /h3 ul lipOwn and ship a new Rapid onboarding experience — from first impression to first completed Rapid — including microcopy, guidance, and clear progress signals. /p /li lipBuild a behavior-first activation engine: define hypotheses, design fast experiments, ship weekly, measure impact, and iterate relentlessly. /p /li lipDesign engagement loops inspired by best-in-class consumer products (high-retention apps, games, commerce flows) — while staying ethical, transparent, and user-respectful. /p /li lipIncrease completion and repeat usage by reducing friction, improving pacing, clarifying feedback, and making every step feel intentional. /p /li lipLevel up customer onboarding — sharpen landing page messaging, strengthen trust cues, and make the first‑time customer journey more obvious and frictionless. /p /li /ul h3Who You Are /h3 pThis role is for someone who loves behavioral design and gets energized by shipping frequently, learning from data, and seeing their work reach millions of people. /p pbMust-have /b /p ul lipDeep intuition for psychology/behavioral economics applied to product design (motivation, trust…). /p /li lipProven track record of designing high‑retention consumer experiences (e.g., games, commerce checkout, marketplaces, casino‑like interaction loops) — demonstrated via portfolio outcomes. /p /li lipHigh ownership: you independently drive projects from problem framing to shipped iterations. /p /li lipFast iteration mindset: you prefer shipping and testing over perfecting in isolation. /p /li lipExcellent microcopy and information design skills: you can make complex flows feel obvious. /p /li lipComfortable working with product/engineering metrics: defining success, instrumenting changes, reading results. /p /li lipStrong collaboration with engineers; you can design within constraints and still deliver delight. /p /li /ul pbNice-to-have /b /p ul lipExperience designing for massive scale (millions of daily users) and running high‑tempo experimentation. /p /li lipFamiliarity with fraud/trust/safety patterns in consumer products. /p /li lipAbility to prototype quickly (Figma + interactive prototypes; light front‑end is a plus). /p /li lipExperience improving B2B onboarding, developer docs/SDK discoverability, or customer dashboards. /p /li /ul h3What We Offer /h3 ul lipCompetitive salary and equity in a startup with strong growth, IP and backed by top‑tier VCs /p /li lipOpportunity to join a fast growing startup early, giving you an outsized opportunity to shape where the company goes /p /li lipOpportunities for personal and professional growth as our team expands /p /li lipFun and open (startup) culture /p /li lipSpacious mountain views office located in Zürich Center near Sihlcity (3 min from Binz Train station). Large Terrace with Tabletennis, Pizza Oven, Hammock and a BBQ /p /li lipHardware budget tailored to your preferences /p /li lipUnlimited snacks and drinks of your choice /p /li /ul /p #J-18808-Ljbffr