Antoine Butler is a founder, principal engineer, and UX-focused frontend leader based in the Washington DC area with 12+ years shaping seamless, scalable digital experiences. He bridges design and engineering, turning complex UX challenges into high-performing software and guiding teams across startups, agencies, and Fortune 500s. As Founder & Principal at UX By Us, he leads migrations to modern frameworks, design systems, and scalable architectures that elevate user experiences. His impact includes a 30% performance boost via React/Next.js migrations, $1.5M annual savings by building an in-house UX engineering team, and an 81% conversion lift from React + Shopify, plus scaling a product to a $200M acquisition. A committed mentor and problem-solver, he thrives on tackling new challenges and pushing the boundaries of front-end development.
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