Having Some issue in Rest API Filter Query.

I have a column "PendingWithName" in which saving value First name.Last Name Example Shiv.Sharma

So i have loggedin User Email Address in a varibale - EmailId

but i want a sufix to make name plus "@domain" in PendingWith 

So my Filter is :-

/_api/web/lists/getByTitle('ListName')/items?$select=PendingWith,Status,Title,ManagerEmail&$filter=PendingWith+'@domain.com' eq 'shiv.sharma@domain.com' and Status eq 'Pending'

Kindly sugegst in above query

Shiv Sharma