dayworker
/ˈdeɪˌwɜrkər/Definitions
1. noun
A person who works for a short period each day, often on a casual or irregular basis.
“The construction company hired several dayworkers to help with the rush of projects.”
2. noun
A worker who is paid by the day, often in agriculture or seasonal industries.
“Farmers often rely on dayworkers during peak harvesting seasons.”