As a Lead Software Engineer, I created a central hub and React.js component library, increasing development efficiency by 30%. I led technology and design alignment efforts, which reduced design-related defects by 25% and accelerated feature deployment by 20%. Additionally, I mentored developers, improving productivity by 15% and enhancing code quality metrics by 18%. I also engineered CI/CD pipelines, resulting in a 40% reduction in deployment-related issues and a 35% increase in deployment frequency.