Websocket connection with STM32 and Wiznet W5500

I'm seeking a well-experienced developer who understands STM32 and IoT. This job focuses primarily on Ethernet connectivity to achieve optimal functionality.

Key objectives are as follows:
- Establish Websocket connection to public domain
- With Wiznet W5500 and STM32 microcontroller.

It's not necessary for this project, but any prior experience in File transfer, Network communication, and Remote device management would be an added bonus.

The ideal candidate should have:
- Proficiency in Wiznet development
- Proficiency in STM32 development
- Extensive experience with Ethernet connectivity
- Understanding of data transfer speeds.

Your job will be to write an optimal code, preferably in STM32CUBEIDE or Keil MDK Arm. The Wiznet W5500 is connected to STM32 via SPI, it should connect to ethernet router with DHCP mode and afterwards establish and maintain a websocket connection to public domain, sending and receiving data.
The devices used are STM32F103C8 and Wiznet W5500.

Please, make your bid indicating your understanding of the project, and your proposed timeline for completion. Thank you.