Led end-to-end product design, including 5 iterations of high-fidelity wireframes, successfully addressing 80% of usability pain points identified during testing. Redesigned core user flows by implementing a streamlined multi-step checkout process and contextual tooltips, reducing navigation-related issues by 80% and increasing user retention by 15%. Introduced advanced micro-interactions, such as hover effects and progress indicators, significantly enhancing user engagement and boosting task completion rates by 25%. Optimized responsive design techniques across web projects, cutting design iteration time by 40% and improving mobile engagement by 20%, ensuring a seamless user experience across devices. Collaborated closely with the founder to redefine product-market fit, aligning design strategies with business objectives. Developed and implemented a comprehensive design strategy that resulted in a 50% increase in beta user retention. Conducted extensive user testing and iterative prototyping, leading to a 30% improvement in user satisfaction and a smoother onboarding experience during beta testing.