Hi,
I have experience for 15+ years in electronics/embedded development. I have several years of advanced AVR/arduino development, including library development from scratch. Practically all Arduino AVR boards used, like: 2009, 2010, UNO, MEGA, NANO, MICRO, MINI, etc. Several shields used like Ethernet (W5100, ENC28J60, etc.) with various IP protocols implementation, various graphical TFTs with and without touchscreen and various BUS types (parallel, SPI, I2C, etc.), all kinds of sensors and buses, serial and parallel memories, etc.
I have done a lot of projects with Arduino Mega and Uno boards with the standard ethernet shield (W5100 chip) implementing TCP and UDP client/server applications.
I can easily implement your project with good quality fully commented code and help/support to get it up and running on your side.
If you are interested in my bid, feel free to contact me.
Regards,
Carlos.