JavaScript expertise spans the full stack — from React-based frontend interfaces to Node.js backend services. Gary works with modern ES6+ patterns, async/await workflows, and the broader ecosystem of build tools, package managers, and testing frameworks that define professional JavaScript development.

Frontend development leverages component-based architecture with React, building responsive and accessible user interfaces. Backend work uses Node.js for server-side applications, real-time systems, and API layers that integrate with Python-based AI services.

The combination of JavaScript and Python creates a powerful full-stack pattern: Python handles AI, data processing, and computation-heavy backend logic, while JavaScript delivers polished user experiences and real-time interactivity. This dual-language approach is well-suited to modern AI-powered applications.