Remote Senior Frontend Engineer – AI-Driven Fintech Wallet

Devconnectplatform; Buenos Aires; Remote; ARS 137,974,000 - 206,960,000; Full time

Benefits offered by this job

Contractor agreement with payment in $

100% remote work in an international s

Access to Argentine public holidays

Direct involvement in modernizing core

Professional development, learning and

Job summary

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech company focused on cross-border payments.

You will build the Digital Wallet frontend, deliver polished interfaces, and leverage AI tools to extend capabilities across the stack in a remote LATAM setting. This is a frontend-first role requiring hands-on production code delivery, strong UX focus, and collaboration with product and design teams.

Qualifications

• 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.
• A proven track record of building polished, production-ready user interfaces.
• Experience turning Figma designs or equivalent UX/UI specifications into working applications.
• Practical experience with AI-assisted coding tools such as Cursor, Claude Code, GitHub Copilot, or similar.
• 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.

Responsibilities

• 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.

Skills

React

JavaScript

TypeScript

UX principles

Agile development

REST APIs

Frontend architecture

State management

Communication

Independent execution

Figma to UI

Tools

Cursor

Claude Code

GitHub Copilot

Figma

Job description

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech company focused on cross-border payments.

You will build the Digital Wallet frontend, deliver polished interfaces, and leverage AI tools to extend capabilities across the stack in a remote LATAM setting. This is a frontend-first role requiring hands-on production code delivery, strong UX focus, and collaboration with product and design teams.