As Lead Designer at Sellit, I was responsible for shaping the product vision and translating it into intuitive, engaging user experiences. I led the end-to-end design process—from research and concept development, to wireframes, high-fidelity UI, and interactive prototypes. Working closely with the founding team, I defined the design language and visual identity of the platform, ensuring consistency across mobile and web. I collaborated daily with front-end engineers to bring designs to life, bridging the gap between design and development. This meant not only delivering pixel-perfect designs, but also providing detailed specifications, design systems, and ongoing support to ensure smooth implementation. Beyond execution, I helped drive product strategy by exploring new ways to make e-commerce social and community-driven. My work included rethinking marketplace search and discovery, designing group shopping experiences, and creating UI patterns that balanced familiarity with innovation. The result was a scalable design foundation that allowed Sellit to evolve rapidly while keeping the user at the center of the product.