Remote Senior Frontend Design Systems Engineer

Wwshemi; New York (NY); Remote; USD 201,000 - 251,000; Full time

Job summary

Mercury is seeking a Senior Frontend Engineer on the Design Systems team to build patterns and foundations that power all Mercury products. You will own components, tokens, type, color, and layout, ensuring accessibility and pixel-perfect quality.

You will lead projects delivering new UI patterns, advancing AI-enabled design capabilities, and shaping rapid prototyping workflows while mentoring teammates to raise the team’s craft and AI fluency.

Qualifications

• 7+ years of frontend development with React and TypeScript.
• Experience building or maintaining a design system or shared component library.
• Strong tooling fundamentals: build systems, CI/CD, and testing.

Responsibilities

• Build and maintain design system components, tokens, typography, color, and layout with high accessibility and performance.
• Lead projects shipping new UI patterns to solve real pain points for product teams.
• Develop a design system ready for AI as well as human users, enabling leveraged outcomes.
• Invest in the design system prototyping experience for rapid iteration.
• Raise craft and AI fluency through mentorship and best practices.

Skills

React

TypeScript

Design systems

UI collaboration

Accessibility

Tools

CI/CD

Testing

Job description

Mercury is seeking a Senior Frontend Engineer on the Design Systems team to build patterns and foundations that power all Mercury products. You will own components, tokens, type, color, and layout, ensuring accessibility and pixel-perfect quality.

You will lead projects delivering new UI patterns, advancing AI-enabled design capabilities, and shaping rapid prototyping workflows while mentoring teammates to raise the team’s craft and AI fluency.