Build a beautiful, performant, and well-engineered web UI with Design and Product teams. Architect and build backend/API for performance, growth, scalability, and quality. Write unit, functional, and integration tests. Investigate, debug, and fix user-reported production issues. Provide mentorship and guidance to team members. Influence technology direction. Brainstorm new product ideas and improvements with design and product teams. Iterate on team processes and suggest improvements.