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

BetWarrior; Buenos Aires; À distance; ARS 139 086 000 - 200 903 000; Plein temps

Avantages offerts par ce poste

USD contractor pay

100% remote work

Argentine public holidays

Observability modernization

Professional development & referrals

Résumé du poste

Darwoft is seeking a Senior Frontend / UX Engineer to join a US fintech project focused on a digital wallet for cross-border payments. You will build production-ready wallet features, turning UX/UI designs into responsive experiences, and extend the stack with AI-assisted development and BFF services.

You will own features end-to-end, collaborating with product and design teams, and leverage AI tools to accelerate frontend and backend work while ensuring accessibility and performance.

Qualifications

• Proficient with React, JavaScript and TypeScript in production.
• Experience in fintech-style digital wallets or payments platforms.
• Strong UX/principles and ability to translate designs into code.
• Track record of delivering polished, production-ready UIs.
• Experience converting Figma specs into working apps.
• Familiar with AI-assisted coding tools like Cursor, Claude Code or Copilot.
• Ability to deliver features across frontend and backend boundaries.
• Experience with REST APIs and BFF architectures.
• Strong frontend architecture, reusable components and state management.
• Experience in Agile product development and strong communication.

Responsabilités

• Design, develop, and maintain high-quality user interfaces for a Digital Wallet.
• Translate UX/UI designs and product requirements into functional, responsive applications.
• Collaborate with product and design teams to improve user journeys and usability.
• Own features end to end from requirements to delivery.
• Use AI-powered tools to speed up frontend and full-stack development.
• Build and maintain BFF services supporting application requirements.
• Implement API integrations and backend functionality when needed.
• Ensure performance, accessibility, and maintainability across the app.
• Participate in code reviews and help improve development practices.
• Find ways to simplify development workflows through AI-assisted engineering.

Connaissances

React

JavaScript

TypeScript

Fintech apps

UX principles

Figma designs

AI-assisted coding

REST APIs

BFF architectures

Agile

Communication

Independent execution

Outils

Cursor

Claude Code

GitHub Copilot

Description du poste

Darwoft is seeking a Senior Frontend / UX Engineer to join a US fintech project focused on a digital wallet for cross-border payments. You will build production-ready wallet features, turning UX/UI designs into responsive experiences, and extend the stack with AI-assisted development and BFF services.

You will own features end-to-end, collaborating with product and design teams, and leverage AI tools to accelerate frontend and backend work while ensuring accessibility and performance.