bootstrapper

noun
UK /ˈbuːt.stræp.ər/
US /ˈbuːt.stræp.ɚ/

A person who starts something big all by themselves, without help or lots of money.

The young bootstrapper built her cookie business from her own kitchen.


OTHER MEANINGS

2. A person who starts a company using their own savings instead of outside investors.

As a bootstrapper, he refused to take money from investors.

3. A computer program that helps start up a system or load other software.

The bootstrapper loads the operating system when you turn on the machine.

4. Someone who improves their situation through their own hard work.

She was a bootstrapper who worked two jobs to pay for college.