C socket programming

I am looking for a skilled C programmer with experience in socket programming to develop a code that will run on Linux. The primary function of the socket program will be file transfer, and it needs to use the TCP protocol. The file sending and receiving must be in async, non blocking mode using fcntl().

Ideal Skills and Experience:
- Proficient in C programming
- Strong knowledge of socket programming
- Experience with Linux operating system
- Familiarity with TCP protocol