In the medieval system, towns had special privileges and trades and crafts
were controlled by guilds.
The workplace was run by the master who employed apprentices and journeymen,
Journeymen had completed their apprenticeships and were qualified to do the
job (ie be paid daily wages). In time they could become masters in their own
right, but this would require acceptance by the guild - and presumably a
certain amount of capital.
In this context journeyman simply means a time served craftsman entitled to
a man's wages.
A man who served his apprenticeship in a trade and worked as a fully qualified employee. The term originated in the regulations of the medieval trade guilds; it derives from the French journée (‘a day’) because journeymen were paid daily.
Each guild normally recognized three grades of worker – apprentices, journeymen, and masters. As a qualified tradesman, a journeyman might have become a master with his own business but most remained employees.