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

CookUnity; Tandil; Remote; ARS 106,447,000 - 191,605,000; Full time

Benefits offered by this job

Contractor USD payment

100% remote work

Argentine public holidays

Job summary

Darwoft seeks a Senior Frontend / UX Engineer to join a fast-growing fintech squad as a full-time contractor in LATAM. You’ll build a Digital Wallet UI and P2P components, turning designs into polished, scalable features across the stack.

You will work remotely with a global team, using AI-assisted tools to accelerate development, and collaborate on BFF services, API integrations, and performance optimization.

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.
• Proven track record of building polished, production-ready user interfaces.
• Experience turning Figma designs or equivalent UX/UI specifications into working applications.

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

Frontend development

UI/UX

AI-assisted coding tools

Tools

Cursor AI

REST APIs

Job description

Darwoft seeks a Senior Frontend / UX Engineer to join a fast-growing fintech squad as a full-time contractor in LATAM. You’ll build a Digital Wallet UI and P2P components, turning designs into polished, scalable features across the stack.

You will work remotely with a global team, using AI-assisted tools to accelerate development, and collaborate on BFF services, API integrations, and performance optimization.