Remote Senior Frontend Engineer - AI-Driven Fintech Wallet

BetWarrior; Tandil; Remote; ARS 85,158,000 - 149,026,000; Full time

Benefits offered by this job

Contractor—USD payments

100% remote work

Job summary

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing LATAM fintech project as a contractor. You will design and implement production-ready UI features for a digital wallet and related P2P applications, leveraging React, TypeScript, and AI-assisted tooling.

You will own features end-to-end, collaborate with product and design teams, and optimize UX across the stack while working in a fully remote, international setting. Prior fintech and BFF/API experience are a plus.

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 turn Figma designs or equivalent UX/UI specs 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.
• Experience working in Agile product development environments.
• Strong communication, problem-solving, and independent execution skills.

Responsibilities

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

Skills

React

JavaScript

TypeScript

UX principles

Figma designs

AI-assisted coding tools

REST APIs

BFF architectures

Agile

UI development

Tools

Figma

Node.js

REST APIs

Job description

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing LATAM fintech project as a contractor. You will design and implement production-ready UI features for a digital wallet and related P2P applications, leveraging React, TypeScript, and AI-assisted tooling.

You will own features end-to-end, collaborate with product and design teams, and optimize UX across the stack while working in a fully remote, international setting. Prior fintech and BFF/API experience are a plus.