Senior Frontend Engineer (UI/UX) - PT - Worldwide

We’re looking for a senior frontend engineer with strong UI/UX skills to build the user-facing side of these capabilities and bring the product experience to enterprise standard.

This is not a rebuild. You’ll improve an existing product, preserve approved business logic, and own frontend quality end to end., * Build the frontend for the strategy build automation on the completed backend.

• Audit and improve UI/UX consistency, usability, and performance across the platform.
• Mature the design system and extend test coverage to critical UI workflows.

Frontend Engineering

• Expert React, TypeScript, and JavaScript
• Experience in large, existing production codebases
• State management for complex, multi-step workflows
• Component architecture and reusable component libraries
• Performance optimization for data-heavy interfaces
• Frontend and end-to-end testing (Jest, React Testing Library, Playwright or Cypress)
• REST API integration and authentication flows (AWS Cognito a plus)
• Working within an established CI/CD pipeline and staging environments

UI/UX (Critical)

• Strong product design judgment and the ability to make UX decisions independently
• Enterprise dashboards and data-intensive interfaces: tables, filters, charts, drill-downs
• Interaction design for complex workflows: approvals, governance, multi-step processes
• Information architecture for multi-module platforms
• Design systems: tokens, components, patterns
• Accessibility (WCAG 2.1 AA)
• Figma or equivalent, from wireframes to developer-ready specs
• Data visualization (D3, Recharts, ECharts, or similar), * 5+ years of frontend engineering; demonstrated capability matters more than years
• A portfolio of enterprise SaaS, B2B dashboard, or data-heavy product work
• A hybrid profile that owns both UX decisions and production-quality code
• Experience with AI-powered product interfaces
• Experience with founder-led products or complex existing codebases, * You’re a visual designer who doesn’t ship production code
• You’re a frontend engineer who needs every screen fully specified
• Your experience is limited to marketing sites or simple consumer apps
• You prefer rebuilding over improving existing products