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:)
The person is a steel-worker.
Tech Person
a slave
Employee
someone who works for a business
hydrologist
A mathematician
moofer
A Chronogist
A BarMan
Railroader
Landscaper
swagg