.Net Based Desktop Application -- 2

I need to experienced dotnet developer who can develop a windows based application for me. We has to create a flow chart using dotnet. Step in the flowchart can be same as previous step or different. Every step will have some user inputs parameters or fields and every flowchart can be saved with unique name with date and time.
New step can be placed in any direction of flowchart.
Then all the data that has been entered in flowchart will be sent to tcp/ip server as JSON string along with the byte size.