B1
the job or series of jobs that you do during your working life, especially if you continue to get better jobs and earn more money
Dictionary examples:
My career as a professional pillow tester is a real dream job! (0.0)
I switched my career to professional dog walking. It's a real treat! (0.0)
His career as a professional procrastinator never really got started. (0.0)
He hasn't yet chosen a career. (25.7)
What are the career prospects? (38.3)
a successful career in marketing (38.7)