Careerist often implies someone is selfishly ambitious, disregarding others for personal gain. Her careerist mindset made her an unpopular manager.
Pro Tip 2/3
Context Specific
Use careerist in professional contexts to describe someone's approach to their work life. In the corporate world, being labeled a careerist might hinder someone's team-based projects.
Pro Tip 3/3
Climbing the Ladder
The term careerist is often associated with advancing in job positions, not just having a job. He's seen as a careerist because he's had three promotions in two years.