ReactJS Error Resolution

I'm in urgent need of a ReactJS expert to tackle and rectify critical errors plaguing my current project. My primary goal is to ensure the seamless functionality of user authentication and data visualization alongside maintaining real-time updates without compromise. The issues at hand are twofold: 1. **Syntax Errors**: There are instances where the code doesn't execute as intended due to syntactical mistakes. This hinders the overall performance and occasionally crashes the application. 2. **Runtime Errors**: Despite successful compilation, the application encounters errors during execution. These are intermittently obstructing user interactions and real-time data presentation, which are core functionalities of the project. **Ideal Skills and Experience**: - Proficient in ReactJS with a strong understanding of its core principles. - Experienced in debugging and error handling within React applications. - Solid background in data visualization, particularly in crafting dynamic and interactive elements. - Competent in implementing efficient user authentication systems. - Adept at working with both syntax and runtime errors, with a methodical approach to problem-solving. - Familiarity with real-time update mechanisms in React and their integration into user interfaces. This task demands detailed attention and a fast turnaround; hence, a freelancer with a proven track record in swiftly diagnosing and rectifying such issues in ReactJS projects will be highly preferred. Your bid should reflect your ability to start immediately and provide a reliable solution swiftly.