5+ years of hands-on, post-grad, non-internship professional Software Development experience. Proficiency in front-end technologies, including TypeScript/JavaScript with experience in component frameworks (React, Angular, Lit). Demonstrated experience in developing end-to-end web applications at scale, from API design to user interface implementation. Demonstrated ability to integrate front-end systems efficiently. Expert with software engineering best practices such as unit testing, code reviews, design, and documentation. Demonstrated ability to develop scalable, well-designed software. Experience working with an experimentation platform or measuring impact of FE work using experimentation or measured rollouts. Excellent communication skills to collaborate effectively in a fully-remote environment and negotiate complex requirements.