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

Cookunity; Ciudad de Mendoza; Remote; ARS 61,494,000 - 107,614,000; Full time

Benefits offered by this job

100% remote

Argentine public holidays

Professional development

Referral programs

Job summary

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing fintech setup. You will build a digital wallet UI, translate designs into scalable, production-ready features, and collaborate with design and product teams to optimize the user journey.

This contractor role emphasizes delivering end-to-end features across frontend and backend boundaries, leveraging AI-assisted coding tools and modern web tech in a remote LATAM environment.

Qualifications

• Strong hands-on experience with React, JavaScript, and TypeScript.
• Experience building fintech applications or digital wallets.
• Solid understanding of UX principles and usable interfaces.
• Proven track record of production-ready UIs.
• Experience turning Figma designs into working apps.
• Experience with AI-assisted coding tools.
• Ability to deliver features across frontend and backend boundaries.
• Experience with REST APIs and Backend for Frontend architectures.
• Strong frontend architecture and reusable components.
• Experience in Agile environments and good communication.
• Comfort working with production code.

Responsibilities

• 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 through delivery.
• Use AI-powered tools to speed frontend and full-stack development.
• Build and maintain Backend for Frontend (BFF) services that support app requirements.
• Implement API integrations and supporting backend functionality when needed.
• Ensure consistency, performance, accessibility, and maintainability across the app.
• Take part in code reviews and help improve development practices.
• Find ways to simplify development workflows through AI-assisted engineering.

Skills

React

JavaScript

TypeScript

Fintech UI

Figma-to-code

AI-assisted coding

REST APIs

BFF

Agile

Communication

Tools

Cursor

Claude Code

GitHub Copilot

Job description

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing fintech setup. You will build a digital wallet UI, translate designs into scalable, production-ready features, and collaborate with design and product teams to optimize the user journey.

This contractor role emphasizes delivering end-to-end features across frontend and backend boundaries, leveraging AI-assisted coding tools and modern web tech in a remote LATAM environment.