> Markdown version of [/jobs/ext/3648792-senior-frontend-engineer-ui-ux-pt-worldwide](https://www.wearedevelopers.com/jobs/ext/3648792-senior-frontend-engineer-ui-ux-pt-worldwide). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Frontend Engineer (UI/UX) - PT - Worldwide - **Company:** Arc Full-time - **Location:** United States (Remote available) - **Experience:** Expert - **Contract:** Temporary contract - **Skills:** Adobe Analytics, JavaScript (Programming Language), Artificial Intelligence, Amazon Web Services, Business Logic, Build Automation, Code Coverage, Continuous Integration, Data Visualization, Design of User Interfaces, Interaction Design, Performance Tuning, E2e Testing, TypeScript, Web Content Accessibility Guidelines, Website Wireframe, ReactJS, Cypress (Programming Language), Backend, Playwright, Production Code, Figma, Codebase, Front End Software Development, React Testing Library, Restful APIs - **Published:** October 9, 2026 - **Apply:** https://arc.dev/signup?userType=developer&publicRandomKey=pq2ktlnhzn&to=https%3A%2F%2Farc.dev%2Fdashboard%2Fd%2Fverified-jobs%2Fpq2ktlnhzn%2Fapplication ## About the Role 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 ## Description 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.