> Markdown version of [/jobs/ext/4514385-senior-front-end-engineer](https://www.wearedevelopers.com/jobs/ext/4514385-senior-front-end-engineer). 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 Front End Engineer - **Company:** Urban, Ltd. - **Location:** Jacksonville, FL, United States (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** HTML, JavaScript (Programming Language), Automation of Tests, Big Data, Browser Compatibility, Cascading Style Sheets (CSS), Code Review, Data Files, Data Visualization, Software Debugging, Design of User Interfaces, Human-Computer Interaction, Performance Tuning, Next.js, Responsive Web Design, TypeScript, Web Content Accessibility Guidelines, Web Applications, ReactJS, Cypress (Programming Language), Backend, Material UI, Plotly, Graphql, Front End Software Development, React Testing Library, Es2015 - **Published:** November 2, 2026 - **Apply:** https://www.careerbuilder.com/job-details/senior-front-end-engineer--217122f1-0de8-4c71-9f65-4941ced958bf ## About the Role User Interface/Experience (UI/UX), Data Sets, Data Visualization, Internet Application, User Interface/Experience (UI/UX), Rich Internet Application (RIA), JavaScript, Reporting Dashboards, Performance Tuning/Optimization, Product Design, * 5+ years of professional front-end development experience * Strong expertise in JavaScript (ES6+) and TypeScript * Deep experience with React and modern React patterns (hooks, context, memoization) * Production experience with Chakra UI or similar component libraries * Hands-on experience with Mapbox (layers, sources, interactions, performance tuning) * Experience building data visualizations using Plotly and/or ApexCharts * Solid understanding of HTML, CSS, responsive design, and accessibility (WCAG) * Experience consuming REST and/or GraphQL APIs * Strong debugging, performance optimization, and problem-solving skills, * Experience with Next.js or similar React frameworks * Familiarity with geospatial concepts (GeoJSON, projections, tilesets) * Experience working with large or real-time datasets * Knowledge of front-end testing tools (Jest, React Testing Library, Cypress) * Experience in data, analytics, mapping, or visualization-heavy products * Prior experience leading projects or acting as a technical owner ## Description We are hiring a Senior Front End Engineer to lead the development of rich, interactive web applications built with React, Chakra UI, Mapbox, and modern data visualization using Plotly and ApexCharts. You will play a key role in shaping the user experience for data-heavy products, translating complex datasets into intuitive, high-performance interfaces., * Design, build, and maintain complex front-end applications using React * Create accessible, responsive UI components using Chakra UI * Implement interactive map-based experiences using Mapbox GL JS * Build interactive data visualizations and dashboards using Plotly and ApexCharts * Optimize performance for large datasets, maps, and real-time updates * Collaborate with product managers, designers, and backend engineers to define and deliver features * Establish and enforce front-end best practices (architecture, testing, accessibility, performance) * Lead code reviews and mentor other engineers * Contribute to technical planning and architectural decisions * Ensure cross-browser compatibility and responsive behavior