I have extensive experience with React, having used it in multiple professional projects. In my last role, I developed a complex dashboard using React, which included state management with Redux and integration with RESTful APIs. I leveraged React's component-based architecture to create reusable UI components, which significantly improved the maintainability and scalability of the application. Additionally, I implemented React Router for dynamic routing, enhancing the user experience by enabling smooth navigation without page reloads.

Ensuring performance involves several practices, including optimizing assets, minimizing HTTP requests, and using efficient algorithms. I regularly use tools like Lighthouse and WebPageTest to identify performance bottlenecks. For instance, I compress images and use lazy loading to reduce initial load times. I also employ code splitting and tree shaking to reduce bundle sizes. Additionally, I prioritize asynchronous operations and use service workers for caching, which enhances the application's responsiveness and offline capabilities.

Cross-browser compatibility is crucial for a seamless user experience. I use feature detection with libraries like Modernizr to ensure that the application functions correctly across different browsers. I also follow best practices such as using polyfills for newer JavaScript features and adhering to web standards. Regular testing on multiple browsers and versions is essential; I use BrowserStack for this purpose. Additionally, I ensure that CSS resets and normalization are applied to maintain consistent styling across browsers.

Accessibility is a priority in my development process. I adhere to WCAG guidelines and use ARIA attributes to enhance the accessibility of web content. I ensure that all interactive elements are keyboard navigable and that proper focus indicators are in place. Semantic HTML is used to provide meaningful structure, and I conduct regular accessibility audits using tools likeaxe-core. User testing with individuals with disabilities is also part of my approach to validate accessibility features.

I have extensive experience with Git, having used it in all my professional projects. I am proficient in branching strategies like Git Flow, which helps manage feature development and releases efficiently. I regularly use commands like pull, push, merge, and rebase to collaborate with team members. I also utilize pull requests for code reviews and ensure that commit messages are clear and descriptive. Additionally, I have experience with platforms like GitHub and GitLab, which provide additional features for project management and continuous integration.