Online Compiler Development

I'm looking for an experienced developer to create an online compiler that supports Python, JavaScript, and C++.

Essential Features:
- Syntax highlighting
- Code autocompletion
- Error highlighting
- User authentication is required

Ideal Skills and Experience:
- Proficiency in web development
- Experience with code compilation and execution in a web environment
- Strong knowledge of the specified programming languages
- Familiarity with implementing user authentication systems

Looking forward to your proposals!