About the role
About Superhuman Grammarly is now part of Superhuman, the AI productivity platform on a mission to unlock the superhuman potential in everyone. The Superhuman suite of apps and agents brings AI wherever people work, integrating with over 1 million applications and websites. The company’s products include Grammarly’s writing assistance, Superhuman Docs's collaborative workspaces, Mail’s inbox management, and Go, the proactive AI assistant that understands context and delivers help automatically. Founded in 2009, Superhuman empowers over 40 million people, 50,000 organizations, and 3,000 educational institutions worldwide to eliminate busywork and focus on what matters. Learn more at superhuman.com and about our values here . The Opportunity As a Staff Design Engineer on Superhuman Go, you sit between design and front-end engineering and own the part of the work where ideas turn into shipped interfaces. You prototype interactions in code to learn how they should behave, then ship those behaviors as production experiences with a high bar for craft, performance, and reliability. You partner closely with product designers, the design system team, and the other engineers to keep raising the craft of the product. Go is an agent for getting work done. It offers proactive assistance wherever someone already works: inside Superhuman products, on the desktop, or anywhere on the web. We build agents that take action on tasks alongside the user. As Superhuman grows into an AI-native productivity suite across Docs, Mail, and more, Go is the layer that turns intent into outcomes. In this role, you will: End-to-end delivery: Take ideas from prototype to shipped feature. Own the front-end work that makes Go feel responsive, intuitive, and trustworthy across desktop, web, and embedded surfaces. Prototyping as a craft: Build interactive prototypes in code to pressure-test interaction models, agent behaviors, streaming responses, and motion. Use these prototypes to settle design questions that mocks cannot answer. Design system and front-end infrastructure: Extend and own the components, primitives, and patterns that the Go design and engineering team use every day. Turn one-off polish into reusable building blocks. Motion and micro-interactions: Find the moments where a small amount of motion changes how the product feels, then dial those moments in. Make agent behavior legible through interaction. AI-native workflow: Use Cursor, Claude Code, and similar tools as core parts of your daily practice. Bring patterns and workflows back to
