Senior Frontend Engineer – Remote Fintech Wallets & AI

CookUnity; Neuquén; Remote; ARS 68,987,000 - 120,727,000; Full time

Benefits offered by this job

Contractor payment in USD

100% remote work

Argentine public holidays

Observability modernization

Professional development

Job summary

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing fintech project focused on a digital wallet and cross-border payments. You will build polished user interfaces and collaborate across product and design teams to deliver complete features using React, TypeScript, and AI-assisted development tools.

You will own frontend features end-to-end, work remotely from LATAM, and engage with BFF services, REST APIs, and secure development practices in an Agile environment.

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.
• Ability to translate Figma designs into working applications.
• Practical experience with AI-assisted coding tools such as Copilot or similar.

Responsibilities

• Design, develop, and maintain high-quality user interfaces for a Digital Wallet.
• Translate UX/UI designs and requirements into functional apps.
• Collaborate with product and design teams to improve journeys and usability.
• Own features end to end from requirements to delivery.
• Use AI-powered tools to speed frontend and full-stack work.
• Build and maintain Backend for Frontend (BFF) services as needed.
• Integrate APIs and support backend functionality when required.
• Ensure performance, accessibility, and maintainability across the app.
• Participate in code reviews and improve development practices.
• Find ways to simplify workflows through AI-assisted engineering.

Skills

React

JavaScript

TypeScript

Fintech experience

UX/UI principles

Figma to UI

AI-assisted coding

Frontend + Backend

REST APIs

Agile

communication

Tools

Node.js

GitHub Copilot

React Native

Job description

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing fintech project focused on a digital wallet and cross-border payments. You will build polished user interfaces and collaborate across product and design teams to deliver complete features using React, TypeScript, and AI-assisted development tools.

You will own frontend features end-to-end, work remotely from LATAM, and engage with BFF services, REST APIs, and secure development practices in an Agile environment.