Freelance Senior Digital Product Designer (Gamification)Start date: Next week End date: 3-week contract (approx. 15 working days) Day rate: £475 per day IR35: Outside IR35 (must use a Limited Company or Umbrella, not Sole Trader) Location: Central London Work pattern: Hybrid - 2-3 days in-office, remainder remote (cannot be changed) Work schedule: Full-time, Monday-Friday Client: Digital agencyOverviewWe''re looking for a Senior Digital Product Designer with strong gamification experience to join a leading digital agency on a short-term contract. You''ll be designing reward-based mobile experiences for a well-known UK brand, creating interfaces that people love to tap, scroll, and return to.ResponsibilitiesDesign engaging, gamified mobile experiences that drive repeat interaction and brand loyaltyLead the UI design in Figma, crafting intuitive, visually polished, and tactile interfacesBring playful interaction design and reward mechanics into a digital loyalty platformApply strong UX thinking to create experiences that feel fun, smooth, and satisfyingCollaborate closely with PMs, UXers, and creative teams from discovery to final deliveryChampion surprise-and-delight design moments that make users smile and returnCombine brand, craft, and interaction design to build standout digital productsRequirementsProven experience designing gamified, reward-based, or loyalty app experiencesStrong UI and interaction design skills demonstrated through a commercial portfolioExpert-level Fig