Node JS Expert

Looking for an experienced React.js and Node.js developer to resolve critical issues in an existing web app. There is intermittent login failures after JWT token refresh, API response delays on the front page, and inconsistent data rendering due to asynchronous state management in React. The ideal candidate should be proficient in JavaScript, React.js, Node.js, REST APIs, and debugging production issues. The developer should identify the root cause, implement robust fixes, and ensure the application is stable through proper testing.