Senior Frontend/UX Engineer – AI-Driven Fintech, Remote

Scaleup; La Pampa; Remote; ARS 105,893,000 - 158,839,000; Full time

Benefits offered by this job

USD payments

Remote work

Argentine holidays

Observability modernization

Professional development

Job summary

Darwoft seeks a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech company backend for cross-border wallet features. You will build production-ready UI with React/TypeScript, translate designs from Figma into working apps, and collaborate with design and product teams to enhance user journeys and usability.

The role emphasizes end-to-end feature ownership, AI-assisted development tools, and strong communication in a remote, distributed team.

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.
• 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.
• Strong communication, problem-solving, and independent execution skills.
• Comfort working hands-on with production code.

Responsibilities

• Design, develop, and maintain Keet Desktop, a cross-platform P2P communications application built with React and running on the Pear runtime.
• Work on UI/UX implementation to performance optimization and shaping decentralized communication features.
• Maintain strong state management and ensure tests and quality are in place.
• Contribute to code reviews and improve development practices.
• Explore AI-assisted engineering to simplify development workflows.

Skills

React

JavaScript

TypeScript

Fintech

UI/UX

Figma

AI-assisted coding

REST APIs

Frontend architecture

Agile

Tools

Cursor

Claude Code

GitHub Copilot

AI tools

Job description

Darwoft seeks a Senior Frontend / UX Engineer to join a fast-growing U.S. fintech company backend for cross-border wallet features. You will build production-ready UI with React/TypeScript, translate designs from Figma into working apps, and collaborate with design and product teams to enhance user journeys and usability.

The role emphasizes end-to-end feature ownership, AI-assisted development tools, and strong communication in a remote, distributed team.