Senior Frontend/UX Engineer — AI-Driven Fintech (Remote LATAM)

Rootstrap; Ciudad de Mendoza; Remote; ARS 123,632,000 - 185,448,000; Full time

Benefits offered by this job

Contractor payment in USD

100% remote work

Job summary

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing fintech environment. This remote, LATAM-based contractor role focuses on building flagship Digital Wallet features, turning UX designs into polished, production-ready interfaces, and collaborating across product and design teams.

You will own features end to end, leverage AI-assisted coding tools, and contribute to frontend architecture with React, TypeScript, and REST APIs.

Qualifications

• Strong hands-on experience with React, JavaScript, and TypeScript.
• Experience building fintech apps or digital wallets.
• Experience turning UX designs into production UI.
• Experience with REST APIs and BFF architectures.
• Experience with Agile environments.
• Excellent communication and independence.

Responsibilities

• Design, develop, and maintain high-quality UIs for a Digital Wallet.
• Translate designs into functional, responsive applications.
• Collaborate with product and design teams to improve journeys.
• Own features end to end from requirements to delivery.
• Use AI-powered tools to speed frontend and full-stack dev.
• Build and maintain BFF services that support requirements.
• Implement API integrations and backend functionality when needed.
• Ensure performance, accessibility, and maintainability across the app.
• Participate in code reviews and improve practices.
• Find ways to simplify development workflows through AI-assisted engineering.

Skills

React

JavaScript

TypeScript

UX principles

UI development

Figma to code

AI-assisted coding

REST APIs

Agile

Communication

Tools

Cursor

GitHub Copilot

Node.js

Design Systems

Figma

Job description

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing fintech environment. This remote, LATAM-based contractor role focuses on building flagship Digital Wallet features, turning UX designs into polished, production-ready interfaces, and collaborating across product and design teams.

You will own features end to end, leverage AI-assisted coding tools, and contribute to frontend architecture with React, TypeScript, and REST APIs.