Senior Software Engineer (Design Systems)

Quick Facts

• Role: Senior Software Engineer (Design Systems)

• Team focus: Design System components, foundations, and AI-ready UI patterns

Description

You will build and maintain the reusable components and foundations—tokens, type, color, and layout—that power Mercury’s product experience. The role focuses on shipping new UI patterns that help product teams move faster, while evolving the design system to work effectively in an AI-assisted development world. You will also invest in prototyping workflows and mentor others through best practices.

Responsibilities

• Build and maintain design system components and foundations (tokens, type, color, layout)

• Lead projects to ship new UI patterns based on real product team pain points

• Develop an AI-ready design system using practical AI-enabled approaches

• Improve prototyping experience for rapid iteration and concept exploration

• Raise engineering craft and AI fluency through mentorship and shared best practices

Benefits

• Total rewards package includes base salary, equity (stock options/RSUs), and benefits

• Highly competitive salary and equity ranges within the SaaS and fintech industry

• New hire offers based on experience, expertise, geographic location, and internal pay equity