Senior Frontend/UX Engineer - AI Fintech Wallet | Remote

Bluelight; Tandil; Remote; ARS 139,086,000 - 185,448,000; Full time

Benefits offered by this job

Contractor payment in USD

100% remote work

Public holidays in Argentina

Job summary

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech project that aims at a cross-border Digital Wallet.

This contractor role focuses on frontend-first development and AI-assisted tools to deliver scalable wallet features. You will turn UX/UI designs into production-ready interfaces, collaborate with product and design teams, and own features end-to-end, including API integrations and BFF services.

Qualifications

• Hands-on React, JS, and TS experience in fintech or wallet projects.
• Strong UX understanding and ability to translate designs into production-ready UI.
• Experience with API integrations and BFF patterns is a plus.

Responsibilities

• Design, develop, and maintain high-quality user interfaces for a Digital Wallet.
• Translate UX/UI designs and requirements into functional, responsive applications.
• Collaborate with product and design teams to improve user journeys and usability.
• Own features end to end from requirements to delivery.
• Utilize AI tools to accelerate frontend and full-stack work.
• Build and maintain BFF services supporting app needs.
• Implement API integrations and backend functionality when required.
• Ensure performance, accessibility, and maintainability across the app.
• Contribute to code reviews and engineering practices.

Skills

React

JavaScript

TypeScript

UX principles

Figma designs to code

AI-assisted coding tools

REST APIs

BFF architectures

Agile

Communication

Independent execution

Tools

Cursor

Claude Code

GitHub Copilot

Job description

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech project that aims at a cross-border Digital Wallet.

This contractor role focuses on frontend-first development and AI-assisted tools to deliver scalable wallet features. You will turn UX/UI designs into production-ready interfaces, collaborate with product and design teams, and own features end-to-end, including API integrations and BFF services.