Frontend Engineer - Design Systems (Fintech)

Location: San Francisco, New York, Portland, or remote within Canada or the United States.

Base salary: US employees: $140,800–$158,400 USD; Canadian employees: $115,700–$149,700 CAD. Total rewards also include equity and benefits.

Company

Mercury is a fintech company providing banking services through partner financial institutions and building SaaS products for businesses.

What you will do

• Build shared React and TypeScript components and patterns that support recurring product needs across different experiences.
• Partner with designers and product engineers to connect design intent with working software and evolve components and tokens across Figma and code.
• Improve accessibility, interaction quality, visual craft, reliable behavior, and testing for experiences built with shared components.
• Improve adoption of the design system through examples, documentation, and workflows.
• Use AI tools to explore approaches, evaluate generated code, test results in context, and contribute effective practices to the team.

Requirements

• Foundation in React, TypeScript, HTML, and CSS, with experience building interfaces and explaining implementation decisions.
• Care for visual craft and how people use software, including interest in accessible interfaces and detailed interactions.
• Hands-on fluency with AI coding tools, including providing context, evaluating and improving generated code, and verifying results.
• Ownership, willingness to learn, clear communication when support is needed, and ability to use feedback to improve.
• Curiosity about reusable systems and the tradeoffs of serving different product needs with shared components.
• Interest in solving problems with designers and engineers, contributing ideas, and understanding the needs behind requests.
• Relevant experience may come from professional work, internships, coursework, open source, or personal projects.

Nice to have

• Experience with design systems, prototyping, or developer tooling.
• Experience in a formal design systems role is not required.

Culture & Benefits

• Work with experienced teammates and receive guidance suited to your experience level.
• Meaningful project ownership with opportunities to build depth in frontend engineering and design systems.
• Opportunity to contribute to code-based prototyping and tools for designers and AI agents as interests and opportunities align.
• Total rewards include base salary, equity through stock options or RSUs, and benefits.
• Mercury is committed to diversity, belonging, equal employment opportunity, and reasonable accommodations during recruitment.