Senior Frontend & UX Engineer - AI-Driven Fintech (Remote)

CookUnity; Neuquén; Remote; ARS 137,974,000 - 206,960,000; Full time

Benefits offered by this job

Contractor payment in USD

Remote work

Argentine public holidays

Observability modernization

Professional development

Job summary

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech ecosystem, focused on a digital wallet for cross-border payments.

You will deliver polished, production-ready interfaces and turn UX/UI designs into scalable features using React, TypeScript, and modern frontend tooling. The role emphasizes end-to-end ownership, collaboration with design and product teams, and AI-assisted development to streamline workflows across frontend and backend boundaries.

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 into working applications.
• Familiarity with AI-assisted coding tools such as Cursor, Claude Code, GitHub Copilot.

Responsibilities

• Design, develop, and maintain high-quality user interfaces for a Digital Wallet.
• Translate UX/UI designs into functional, intuitive, and responsive applications.
• Collaborate with product and design teams to improve user journeys and usability.
• Own features end to end from requirements through delivery.
• Use AI-powered tools to speed up frontend and full-stack development.
• Build and maintain BFF services that support application requirements.
• Implement API integrations and backend functionality when needed.

Skills

React

JavaScript

TypeScript

Fintech experience

UX principles

Agile

Tools

Figma

GitHub Copilot

Cursor

Claude Code

Job description

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech ecosystem, focused on a digital wallet for cross-border payments.

You will deliver polished, production-ready interfaces and turn UX/UI designs into scalable features using React, TypeScript, and modern frontend tooling. The role emphasizes end-to-end ownership, collaboration with design and product teams, and AI-assisted development to streamline workflows across frontend and backend boundaries.