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Assuming you mean ironing as in laundry, that would be either a presser or a laundress.
A miller grinds wheat into flour.
Spic is a racist spanish term. Spic means the n word ending in er. If you call a spanish person a spic it means they are low self worth and are dirty. The racist term also means suspicious person in custody.
If your question is "What do you call someone who uses the products made by industry?", you call him a consumer.
anoid
A child minder, nanny or perhaps a governess.
A "marine biologist", or more specifically a "marine botanist" (plants).
Tech Person
a slave
Employee
someone who works for a business
a nuclear engineer.....
A mathematician
moofer
An employee.
Landscaper
A BarMan