Senior Software Engineer - Design Systems

Job Description

Build and maintain Mercury’s design system, including reusable components, patterns, and foundations, with a high bar for accessibility, performance, and visual craft. Lead the development of new UI patterns and AI-enabled design system capabilities, improve prototyping workflows, and mentor colleagues.

Requirements: Candidates should have 7+ years of frontend development experience, deep expertise in React, TypeScript, and modern web technologies, and experience building or maintaining a design system or shared component library. They should also be proficient in frontend tooling, build systems, CI/CD, and testing, and demonstrate strong product judgment, ownership, systems thinking, and practical fluency with AI in software development.

Key Skills: Frontend Development, React, TypeScript, Design Systems, Component Libraries, Modern Web Technologies, Frontend Tooling, Build Systems, CI/CD, Testing, Accessibility, Performance Optimization, Prototyping, Artificial Intelligence, Systems Thinking, Mentorship

Benefits: Equity, Stock Options, Restricted Stock Units