Remote Senior Frontend & UX Engineer - AI-Driven Fintech

Imachines; Buenos Aires; Remote; ARS 127,737,000 - 255,474,000; Full time

Benefits offered by this job

Contractor pays in USD

100% remote in international setting

Argentine public holidays access

Involvement in modernizing core observ

Job summary

Darwoft seeks a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech project focused on cross-border payments and digital wallets. This frontend-first role emphasizes building intuitive, production-ready wallet features and leveraging AI-powered tools to accelerate delivery.

As a contractor in LATAM, you will own features end-to-end, collaborate with design and product teams, and contribute to BFF services and backend integrations when needed.

Qualifications

• Strong hands-on experience with React, JavaScript, and TypeScript (front-end).
• Experience building fintech applications, digital wallets, or payment platforms.
• Proven track record delivering polished, production-ready UI.
• Experience turning Figma designs into working apps.
• Experience with REST APIs and BFF architectures.
• Experience in Agile product environments.
• Excellent communication and problem-solving skills.

Responsibilities

• Design, develop, and maintain high-quality user interfaces for a Digital Wallet.
• Translate UX/UI designs and product 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.
• Use AI-powered tools to speed frontend and full-stack development.
• Build and maintain Backend for Frontend (BFF) services supporting app needs.
• Implement API integrations and supporting backend functionality when needed.
• Ensure performance, accessibility, and maintainability across the app.
• Participate in code reviews and improve development practices.
• Find ways to simplify development workflows through AI-assisted engineering.

Skills

React

JavaScript

TypeScript

fintech apps

digital wallets

UX principles

Figma designs

AI-assisted coding

REST APIs

BFF architectures

frontend architecture

Agile

communication

independent execution

production code

Tools

Cursor

Claude Code

GitHub Copilot

Job description

Darwoft seeks a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech project focused on cross-border payments and digital wallets. This frontend-first role emphasizes building intuitive, production-ready wallet features and leveraging AI-powered tools to accelerate delivery.

As a contractor in LATAM, you will own features end-to-end, collaborate with design and product teams, and contribute to BFF services and backend integrations when needed.