Nginx Load Balancing Optimization

I'm facing issues with handling requests on my Nginx server. We're dealing with lakhs of requests per second, along with concurrent database updates and performance-related issues.

Key requirements:
- Resolve load balancing failures (currently using least connections)
- Improve request handling efficiency
- Optimize server performance to handle high concurrency

Ideal Skills and Experience:
- Strong expertise in Nginx and load balancing techniques
- Experience with high-traffic server environments
- Proficiency in diagnosing and fixing performance bottlenecks
- Knowledge of database concurrency management

Looking for a professional who can ensure stability and efficiency under heavy load.