Full-Stack Developer Needed for Laravel/React SaaS Dashboard Improvements

We are looking for an experienced full-stack developer to improve an existing SaaS web application built with Laravel, React, Node.js, and MySQL. The application is already functional. This is a focused assignment involving several improvements rather than building a new platform from scratch. Scope of work: Fix existing frontend and backend issues Connect or correct REST API integrations Improve one responsive dashboard module Add proper validation and error handling Resolve authentication or user-role permission issues Optimize slow database queries where necessary Test the completed functionality Deploy the changes to our server The developer must: Have strong Laravel, PHP, React, Node.js, and MySQL experience Be comfortable understanding an existing codebase Write clean and maintainable production-ready code Avoid breaking existing functionality Communicate clearly and provide regular progress updates Have experience working with Linux servers and application deployment Deliverables: 1. All assigned issues resolved 2. Responsive and properly tested functionality 3. Changes deployed successfully 4. Short summary of the work completed 5. Source code committed to our repository This is a fixed-price project with a budget of $100. The scope will be limited accordingly. Strong performance may lead to ongoing SaaS development work. When applying, please briefly describe a similar Laravel or React SaaS project you have completed and confirm that you can work with an existing production codebase. Budget: $100 fixed price Experience level: Intermediate to Expert Timeline: 3–5 days