Frontend Completion & Optimization for AI SaaS App

I'm seeking an experienced frontend developer to complete and optimize the frontend of our AI-powered SaaS application. The backend, built with Ruby on Rails, is successfully deployed on AWS, but the frontend needs significant work due to incomplete delivery, particularly concerning UI components and vendor library packages.

Key Requirements:
- Audit the current frontend codebase built with React and TypeScript.
- Replace or rebuild private libraries and components, especially those under the @builder namespace, to ensure full functionality.
- Focus on improving component functionality to address current issues.
- Refactor the codebase if necessary to simplify structure and remove dependencies on missing packages.
- Provide guidance or support for deploying the frontend on AWS Amplify or other AWS services.

Stack Details:
- React with TypeScript
- Nx workspace structure (monorepo-style setup)
- Babel for transpilation
- Yarn for package management
- Integrations include Material UI, Formik, Yup, Google OAuth, etc.

Ideal Skills and Experience:
- Strong expertise in React and TypeScript, particularly in building and maintaining complex applications.
- Experience with monorepo setups and Nx workspace.
- Proficiency in using Material UI and other integrated libraries.
- Ability to audit and refactor codebases for improved functionality and maintainability.
- Familiarity with AWS services, particularly AWS Amplify, for deployment purposes.

If you have the skills and experience to help us complete our frontend and ensure seamless deployment, I'd love to hear from you!