workaholic
/ˈwɜːrkəˌhɒlɪk/Definitions
1. noun
A person who works excessively, often to the point of neglecting other aspects of their life.
“After years of being a workaholic, she began to prioritize her health and family.”
2. adjective
Characterized by excessive working or a tendency to overwork.
“The workaholic CEO was known for expecting his employees to put in long hours without overtime pay.”