When I build SOE (or SOI) with old ArcMap ArcObjects I could use all the GP tool.
I used the Geoprocessor library and DataManagementTools (or others) for the tools.
GP tools is important part of any ArcObjects code.
These libraries does not exists in Enterprise SDK.
The tools does exists on the server, you can use them in gp services in Python.
How do I put them into my SOE code?