Senior UX/UI Designer Job at SOLANA FOUNDATION in New York

About KAST KAST is redefining what it means to bank with stablecoins - think Revolut, rebuilt from scratch on Web3. Backed by top-tier VCs, we’ve grown from 0 to 1 million users in under a year. We’re building the next-gen global bank based entirely on stablecoins. Design is at the heart of everything we do - it’s how we simplify the complex, make money feel easy, and turn crypto skeptics into brand ambassadors. KAST is redefining stablecoin banking for global citizens, crypto professionals, Web3-native businesses, and high-inflation markets hungry for USD-backed banking. Backed by top-tier global investors and led by the ex-APAC CEO of Circle, our leadership team spans Circle, Airwallex, Revolut, Wise, Grab, Zoom, AWS, and leading OTC desks. We’ve scaled from zero to nearly a million users at ridiculous speed. By building directly onchain, we’ll deliver what traditional rails can’t: instant yield, flexible collateralized lending, and richer investment products. With a premium user focus and a culture built on velocity × excellence, we’re moving fast to outpace legacy players and build the next generation of financial services. Cards are how users experience stablecoins in the real world—paying at 100M+ merchants, withdrawing at ATMs, and accessing new forms of credit. Our ambition is clear: make KAST the #1 stablecoin bank globally. The Role We’re hiring a Senior UX UI Designer to craft high-conversion mobile experiences across onboarding, cards, payments, savings, and referrals. You’ll work closely with Product, Engineering, and Compliance to ship designs that are simple, fast, and compliant—without compromising on quality. Your mission: Build an experience that moves as fast as our users and make KAST the category leader. You’ll come forth with initiative ideas on UI and UX which have never been seen before. KAST will be the most intuitive, premium, and addictive stablecoin banking app. What You’ll Be Doing Own end-to-end design for core journeys (KYC → card activation → first spend). Turn complexity (on-chain actions, compliance steps, FX, fees) into simple UX. Build and maintain clean, extensible design systems. Prototype rapidly (Figma/Proto tools) and validate with users; iterate using analytics. Partner with Product & Engineering to scope MVPs, define acceptance criteria, and Ensure design quality in the build. What You'll Bring 6-10 years designing consumer mobile apps for fintech, payments, challenger banks, or the Big 5: Google, Apple, Facebook, Amazon, andMicrosoft. You think differently, never settling for category norms. Strong systems thinking: component libraries, tokens, motion, and responsive rules. Fluency in Figma (auto-layout, variants), prototyping, and developer-ready specs. Data-driven mindset: comfortable with funnels, A/B testing, and iteration loops. Curiosity (or experience) in Web3/crypto, with a knack for simplifying complexity. Founder mindset: you own outcomes, communicate clearly, and ship relentlessly. Why KAST? Shape the user journeys at one of the fastest-scaling Web3 challenger banks. High ownership, zero bureaucracy, and direct impact on millions of users. Competitive comp + meaningful equity. Join a high-energy, no-BS team on track to be the next unicorn. How To Apply? Send your resume/portfolio to design_nov2025@kastcard.com Interview Process #J-18808-Ljbffr In Summary: KAST is redefining what it means to bank with stablecoins - think Revolut, rebuilt from scratch on Web3 . Backed by top-tier VCs, we’ve grown from 0 to 1 million users in under a year . Design is at the heart of everything we do - it’s how we simplify the complex . En Español: KAST está redefiniendo lo que significa bancar con stablecoins - piensa Revolut, reconstruido desde cero en Web3. respaldado por VCs de primer nivel, hemos crecido de 0 a 1 millón de usuarios en menos de un año. Estamos construyendo el banco global de próxima generación basado enteramente en stablecoins. El diseño es la base de todo lo que hacemos: es cómo simplificamos el complejo, nos sentimos fáciles y convertimos a los escépticos criptográficos en embajadores de marca. Nuestra ambición es clara: hacer de KAST el banco de monedas estables número 1 a nivel mundial. El papel que estamos contratando un diseñador senior UX UI para crear experiencias móviles de alta conversión en onboarding, tarjetas, pagos, ahorros y referencias. Trabajarás estrechamente con Product, Engineering y Compliance para diseñar productos simples, rápidos y conformes sin comprometer la calidad. Tu misión: Construir una experiencia que se mueva tan rápido como nuestros usuarios y convertir a KAST en líder de categoría. KAST será la aplicación bancaria de stablecoin más intuitiva, premium y adictiva. What Youll Be Doing Own end-to-end design for core journeys (KYC → activación de tarjetas → primer gasto). Transformar la complejidad (acciones en cadena, pasos de cumplimiento, FX, tarifas) en una UX simple. Construir y mantener sistemas de diseño limpios y extensibles. Prototipar rápidamente (herramientas FIGMA/Proto) y validar con los usuarios; iterar utilizando análisis.