Data Visualization Lead Location: Philadelphia, PA Mandatory Skills Deck.gl, React, JavaScript, HTML/CSS, SQL Optional Skills Carto, JSON, API, CI/CD, Java Job Description We are seeking an experienced Data Visualization Lead to design and build advanced, interactive visualizations that translate complex datasets into compelling insights. This role demands a deep understanding of React and Deck.gl, along with strong UI/UX sensibilities and a collaborative, leadership-oriented mindset. You'll lead a small team of developers and work closely with data scientists, engineers, and product managers to shape data-driven user experiences. \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ Key Responsibilities • Design, architect, and develop high-performance, interactive data visualizations using React, Deck.gl, and supporting technologies • Lead a team of visualization engineers, providing technical guidance, code reviews, and mentorship. • Collaborate with cross-functional teams to gather requirements and translate them into effective visual storytelling. • Optimize rendering performance for large-scale geospatial and temporal datasets. • Ensure visualizations are accessible, intuitive, and responsive across devices. • Maintain a scalable visualization codebase, implementing best practices in testing, performance, and maintainability. • Stay current on trends in data visualization and front-end technologies to guide the team's innovation. \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ Required Qualifications • 8+ years of experience in front-end development, with at least 2 years focused on data visualization. • Proficiency in React.js and Deck.gl (including Layers, Views, and integration with Carto). • Strong understanding of JavaScript (ES6+), HTML/CSS, and rendering pipelines (WebGL, Canvas). • Experience with data manipulation libraries (e.g., D3.js, Lodash) and working with APIs or large datasets. • Familiarity with geospatial data formats (GeoJSON, TopoJSON, tilesets) and coordinate systems. • Experience leading engineering projects or small teams. • Excellent communication and visual storytelling skills. \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ Preferred Qualifications • Experience with design systems, Figma or Storybook. • Background in geographic information systems (GIS) or urban data. • Familiarity with state management (e.g., Redux, Zustand) and build tools (Vite, Webpack). • Knowledge of performance profiling and optimization tools. • Prior experience in fast-paced agile environment.