Fullstory is seeking a Staff Fullstack Engineer to join their Application Experience team, focusing on building systems and features that deliver a consistent experience across all Fullstory products. This role combines technical leadership with hands-on development, requiring expertise in React, TypeScript, and Go. The position involves architecting scalable systems handling hundreds of thousands of requests per second, mentoring junior engineers, and collaborating with cross-functional teams. The ideal candidate will drive technical direction, influence engineering practices, and contribute to building enterprise-grade solutions that impact leading global brands. Working remotely from Brazil, you'll join a collaborative team while enjoying comprehensive benefits including flexible work arrangements, professional development opportunities, and extensive family-support policies. Fullstory's mission centers on helping technology leaders make data-driven decisions by providing powerful behavioral analytics solutions.