Hydraulic Modeller - Microdrainage

Are you a hydraulic modeller with experience of using Microdrainage software?
 
Have you worked on Network Rail assets?
 
Location: London - 1 to 2 days a week
Rate: Dependant on experience - outside IR35
Contract length: Ongoing
 
My client is leading design and build drainage contractor who has several Network Rail frameworks they are currently working on.
 
They are looking for a hydraulic modeller to look at drainage around Network Rail track and model the pipe of drainage water.
 
This will be using microdrainage software so previous experience in microdrainage is a must.
 
Ideally they are looking for some one with Network Rail experience but would also consider candidates from highways or infrastructure background.