Remote Senior Frontend & UX Engineer — Fintech AI-Driven

Imachines; Municipio de Rincón de los Sauces; Remote; ARS 92,241,000 - 184,482,000; Full time

Benefits offered by this job

Contractor payment in USD

100% remote

Argentine public holidays

Observability modernization project

Professional development

Referral programs

Job summary

Darwoft seeks a Senior Frontend / UX Engineer to join a fast-growing US fintech company, building a Digital Wallet with a frontend-first approach. You will craft polished interfaces, translate designs into production code, and collaborate across product and design teams to optimize journeys and usability.

You will leverage AI-powered tools to accelerate frontend and full-stack work, while participating in API integrations, BFF services, and secure, scalable delivery in a remote LATAM setup.

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.
• 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.
• 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

Fintech wallets

UX principles

Production UI

Figma to code

AI tools

REST APIs

Agile

Communication

Tools

React Native

Node.js

Design Systems

Security for fintech

Job description

Darwoft seeks a Senior Frontend / UX Engineer to join a fast-growing US fintech company, building a Digital Wallet with a frontend-first approach. You will craft polished interfaces, translate designs into production code, and collaborate across product and design teams to optimize journeys and usability.

You will leverage AI-powered tools to accelerate frontend and full-stack work, while participating in API integrations, BFF services, and secure, scalable delivery in a remote LATAM setup.