Remote Senior Frontend & UX Engineer - Fintech Wallet & AI

Bluelight Consulting, Llc; Buenos Aires; Remote; ARS 139,086,000 - 185,448,000; Full time

Benefits offered by this job

USD payment

100% remote work

Access to Argentine public holidays

Job summary

Darwoft is seeking a Senior Frontend/UX Engineer to join a fast-growing U.S. fintech company focused on cross-border payments. You will design and implement wallet features, translate designs into scalable interfaces, and leverage AI tools to push frontend and BFF work.

This role prioritizes user experience, technical quality, and delivery speed. You will collaborate with product and design teams, own features end to end, and contribute to building a secure, accessible, production-ready Digital

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 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 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

AI coding tools

REST APIs

BFF architectures

Agile

Communication

Job description

Darwoft is seeking a Senior Frontend/UX Engineer to join a fast-growing U.S. fintech company focused on cross-border payments. You will design and implement wallet features, translate designs into scalable interfaces, and leverage AI tools to push frontend and BFF work.

This role prioritizes user experience, technical quality, and delivery speed. You will collaborate with product and design teams, own features end to end, and contribute to building a secure, accessible, production-ready Digital