Fix WCF service issue

I am looking for a skilled developer who can fix the connection issues with my WCF service deployed on IIS. The issue is critical as the service is experiencing major disruptions.
I'm using two-way certificate authentication and I'm facing security connection issue
Ideal Skills and Experience:
- Strong knowledge and experience in WCF
- Proficiency in troubleshooting and resolving connection issues
- Experience deploying and managing WCF services on IIS
- Familiarity with Azure and other cloud providers
- Ability to work quickly and efficiently under pressure to resolve critical issues.