Senior Frontend Engineer – Fintech Wallets (Remote)

Intuition Machines, Inc.; Municipio de Rincón de los Sauces; Remote; ARS 84,714,000 - 169,428,000; Full time

Benefits offered by this job

Contractor payments in USD

Remote work

Argentine holidays

Observability modernization

Professional development

Job summary

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech company focused on cross-border payments and a Digital Wallet.

You will build polished, production-ready interfaces, turning UX/UI designs into scalable features with AI-assisted tooling and BFF-backed backend support. You will own features end-to-end, collaborate across product and design, and contribute to fast delivery in a remote, international setup.

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.
• A proven track record of building polished, production-ready user interfaces.
• Experience turning Figma designs or equivalent UX/UI specifications into working applications.
• Practical experience with AI-assisted coding tools such as Cursor, Claude Code, GitHub Copilot, or similar.
• Ability to deliver complete features across frontend and backend boundaries.
• Experience with REST APIs, third-party integrations, and Backend for Frontend (BFF) architectures.
• Strong understanding of frontend architecture, reusable components, and state management.
• Experience working in 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, 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

Agile development

UX principles

Tools

REST APIs

BFF

AI-assisted tools

GitHub Copilot

Job description

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech company focused on cross-border payments and a Digital Wallet.

You will build polished, production-ready interfaces, turning UX/UI designs into scalable features with AI-assisted tooling and BFF-backed backend support. You will own features end-to-end, collaborate across product and design, and contribute to fast delivery in a remote, international setup.