Senior Frontend Engineer - Fintech Wallet UI

Mototech, Inc.; Tandil; Remote; ARS 106,447,000 - 191,605,000; Full time

Benefits offered by this job

Contractor in USD

100% remote work

Argentine holidays access

Job summary

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing fintech ecosystem. You will build a Digital Wallet frontend, turning designs into scalable, production-ready features while collaborating with design and product teams across the globe.

This contractor role emphasizes AI-assisted development, end-to-end ownership, and strong frontend architecture knowledge. Remote, international setup with USD payments and flexibility in hours.

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 delivering polished, production-ready user interfaces.
• Experience turning Figma designs into working applications.
• Practical experience with AI-assisted coding tools such as Cursor, Claude Code, GitHub Copilot.
• Ability to deliver complete features across frontend and backend boundaries.
• Experience with Agile product development environments.

Responsibilities

• Design, develop, and maintain high-quality user interfaces for a Digital Wallet.
• Translate UX/UI designs and product requirements into functional, intuitive applications.
• Collaborate with product and design teams to improve user journeys, interactions, and 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

UX principles

Tools

REST APIs

Backend for Frontend

GitHub Copilot

Job description

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing fintech ecosystem. You will build a Digital Wallet frontend, turning designs into scalable, production-ready features while collaborating with design and product teams across the globe.

This contractor role emphasizes AI-assisted development, end-to-end ownership, and strong frontend architecture knowledge. Remote, international setup with USD payments and flexibility in hours.