Expert MERN Stack Developer Needed

I'm seeking a seasoned MERN stack developer, particularly an expert in ReactJS, to join my project.

Key Responsibilities:
- Developing new features
- Fixing bugs
- Improving performance

Ideal Skills and Experience:
- Proficiency in ReactJS, Node.js, Express.js, and MongoDB
- Experience with third-party service integration, especially payment gateways and social media
- Strong problem-solving skills and attention to detail
- Ability to work collaboratively and communicate effectively

Please provide examples of similar work done and your approach to handling the tasks mentioned.