React / Developer for SaaS Web Application - JavaScript React Bug Fixes

We require an experienced Front-End React Developer for the immediate identification and resolution of critical bugs within our core SaaS web application.

The application is built on and is a high-traffic production environment. Immediate resolution is required to restore full user functionality and maintain data integrity.

Your key responsibilities:

• Review and debug the current - codebase.
• Resolve issues pertaining to state management, complex components, and data rendering types inaccuracies.
• Address and rectify cross-browser compatibility and UI responsiveness defects.
• Ensure correct execution of RESTful API calls and data payload handling.
• Conduct thorough testing of all fixes to guarantee seamless application performance across major browsers and viewports.
• Maintain a prompt turnaround time for all bug resolutions.

Required Skills

1 Proven expertise in React, , JavaScript (ES6+), and 2 modern front-end web development practices.

2 Familiarity with large-scale state management libraries (Redux, MobX, Context API, etc.).

3 Experience with advanced debugging for cross-browser environments (Chrome, Firefox, Safari).

4 Strong debugging skills utilizing professional developer tools to diagnose performance bottlenecks.

5 Comprehensive understanding of React component lifecycles and asynchronous data operations.

6 Expertise in responsive design and UI optimization for improved user experience.

Main Bug Fixes:

State Management Issues:

Data inconsistency observed in the main dashboard following specific user actions.

Cross-Browser Lag:

The application exhibits layout breakages or significant lag on specific browser versions (e.g., older Safari desktop).

Slow Load Time:

A key reporting page is experiencing extended initial load times due to unoptimized component rendering.

You MUST HAVE real experience in a production SaaS environment or similar data-heavy web applications.

• Proven track record of successfully fixing critical frontend bugs in React applications.

To apply for this job, please, provide:

• A brief overview of your experience with and bugfixing in SaaS environments.
• Examples of past work, particularly related to state management or API integration fixes.
• Any suggestions or thoughts on how you would approach these issues.

Contract duration of less than 1 month.

Mandatory skills:

JavaScript (ES6+), Web Development, Query Debugging, UI optimization, React, , Redux