Senior Frontend Engineer – Fintech Wallets (Remote)

Cookunity; Municipio de Rincón de los Sauces; A distancia; ARS 138.361.000 - 230.602.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Contractor payment in USD

100% remote work

Argentine public holidays access

Observability modernization project

Professional development and learning

Descripción de la vacante

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech company focusing on cross-border digital wallet products.

You will build production-ready interfaces, translate design specs into scalable features, and leverage AI-powered tools to accelerate frontend and full-stack work. You will own features end-to-end, collaborate with product and design teams, and contribute to performance, accessibility, and maintainability across the app.

Formación

• Strong hands-on experience with React, JavaScript and TypeScript.
• Experience building fintech applications, digital wallets, or payment platforms.
• Solid understanding of UX principles, usability, interaction design, and user-centered development.
• Proven track record of building polished, production-ready user interfaces.
• Experience turning Figma designs into working applications.
• Practical experience with AI-assisted coding tools (Cursor, Claude Code, GitHub Copilot).
• Ability to deliver complete features across frontend and backend boundaries.
• Experience with REST APIs, third-party integrations, and Backend for Frontend (BFF) architectures.
• Strong understanding of frontend architecture, reusable components, and state management.
• Experience working in Agile product development environments.
• Strong communication, problem-solving, and independent execution skills.
• Comfort working hands-on with production code.

Responsabilidades

• Design, develop, and maintain high-quality user interfaces for a Digital Wallet.
• Translate UX/UI designs and product requirements into functional, intuitive, and responsive applications.
• Collaborate with product and design teams to improve user journeys, interactions, and overall usability.
• Own features end to end, from initial requirements through implementation and delivery.
• Use AI-powered development tools to speed up frontend and full-stack development.
• Build and maintain Backend for Frontend (BFF) services that support application requirements.
• Implement API integrations and supporting backend functionality when needed.
• Ensure consistency, performance, accessibility, and maintainability across the application.
• Take part in code reviews and help improve development practices.
• Find ways to simplify development workflows through AI-assisted engineering.

Conocimientos

React

JavaScript

TypeScript

Fintech

UX principles

Figma to code

Agile

Communication

Production code

Herramientas

Cursor AI

Claude Code

GitHub Copilot

REST APIs

BFF

Node.js

Design systems

Descripción del empleo

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech company focusing on cross-border digital wallet products.

You will build production-ready interfaces, translate design specs into scalable features, and leverage AI-powered tools to accelerate frontend and full-stack work. You will own features end-to-end, collaborate with product and design teams, and contribute to performance, accessibility, and maintainability across the app.