Full-stack/backend experience, particularly in Node/Express, or knowledge of additional languages beyond TypeScript. Comfort with TypeScript, HTML, and CSS, and knowledge of at least one modern frontend framework (e.g. Vue). Demonstrated experience in owning production features from start to finish and collaborating with others. Ability to understand, improve, and build on existing codebases. Experience mentoring less-experienced engineers and improving team tools and tactics. Understanding of balancing perfection with shipping quickly and openness to new ideas.