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Mercuryo · 18 hours ago

Frontend Developer

United States

Full-time

Remote

Senior Level

5+ years exp

Mercuryo is on a mission to redefine finance by blending traditional banking with decentralized finance innovations. They are seeking a Frontend Developer to design and develop complex user interfaces, optimize performance, and collaborate with cross-functional teams to enhance user experience.

CryptocurrencyFinancial ServicesFinTech

Responsibilities

Design and develop complex user interfaces using React

Participate in frontend architecture and technical decision-making

Optimize performance and improve user experience

Integrate frontend applications with backend APIs (REST / GraphQL)

Conduct code reviews

Collaborate closely with product managers, designers, and backend engineers

Participate in task estimation and sprint planning

Qualification

ReactJavaScript (ES6+)TypeScriptFrontend architectureREST / GraphQLAI solutions in frontendTesting frameworksGitCode reviewsFintech experienceGraphQL knowledgeSecurity best practicesCI/CD pipelinesEnglish proficiency

Required

5+ years of commercial development experience, including 3+ years with React

Strong knowledge of JavaScript (ES6+) and TypeScript

Deep understanding of React, Hooks, Context, and state management

Experience building SPA, complex forms, tables, and data visualizations

Strong understanding of frontend application structuring, module boundaries, and separation of concerns using FSD principles

Proven expertise in applying AI solutions to frontend development, including code generation, optimization, testing, and developer productivity improvement

Experience writing tests (Playwright, Vitest, Storybook, etc.)

Experience with Git and participating in code reviews