Careerist (noun)

1. A person whose ambition is primarily to advance their career, often at the expense of other considerations.
2. A person who is primarily interested in their professional advancement and not in other aspects of life.

Origin:

From late 19th century, from the word career + -ist.

Examples:

1. She was criticized for being a careerist and not valuing her family.
2. He was a ruthless careerist who would do anything to get ahead.
3. The company was filled with careerists who were only interested in their own advancement.
4. He was accused of being a careerist by his colleagues.
5. She was a careerist and had no time for anything else in life.