hydrologist
A Chronogist
A person who works with concrete is typically called a concrete worker or concrete finisher. They specialize in mixing, pouring, and finishing concrete for various construction projects, such as sidewalks, foundations, and roadways. In some contexts, they may also be referred to as concrete masons.
A blacksmith:)
It is a wedge because the front end is pointy for hydrodynamics so it cuts through water.
The person is a steel-worker.
Tech Person
a slave
Employee
someone who works for a business
A mathematician
moofer
A Chronogist
An astronomer.
An employee.
A BarMan
Railroader
keelman