Senior Frontend & UX Engineer - AI-Driven Fintech Remote

Fullstack; Neuquén; Remote; ARS 92,724,000 - 139,086,000; Full time

Benefits offered by this job

USD payment

Remote work

Public holidays (Argentina)

Observability modernization

Professional development

Referral programs

Job summary

Darwoft seeks a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech company. You will build a Digital Wallet frontend first, turning UX/UI designs into scalable features and using AI-powered tools to extend your reach across the stack.

You will own features end to end, collaborate with design, and work in a remote LATAM team. This contractor role offers USD payment and opportunities to modernize core platform observability.

Qualifications

• Strong hands-on experience with React, JavaScript and TypeScript.
• Experience building fintech apps, digital wallets or payment platforms.
• Solid UX understanding and user-centered development.

Responsibilities

• Design, develop, and maintain high-quality user interfaces for a Digital Wallet.
• Translate UX/UI designs into functional, responsive applications.
• Collaborate with product and design to improve user journeys and usability.
• Own features end to end from requirements through delivery.
• Use AI-powered tools to speed frontend and full-stack development.
• Build and maintain BFF services that support app requirements.
• Ensure performance, accessibility, and maintainability of the app.
• Participate in code reviews and improve development practices.
• Find ways to simplify workflows through AI-assisted engineering.

Skills

React

JavaScript

TypeScript

UX principles

Agile

Tools

REST APIs

BFF architectures

Node.js

Job description

Darwoft seeks a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech company. You will build a Digital Wallet frontend first, turning UX/UI designs into scalable features and using AI-powered tools to extend your reach across the stack.

You will own features end to end, collaborate with design, and work in a remote LATAM team. This contractor role offers USD payment and opportunities to modernize core platform observability.