chapter fifteen
                    
 
This chapter covers
- Deciding when to leave a job
 - Understanding how the job search differs from your first data science job
 - Giving notice and managing the transition
 
The days of spending 40 years at one company and retiring with a golden watch and a pension are over. In most fields, it’s now common to switch companies at least a few times in your career, and in tech, people may switch jobs as often as every couple of years. There are many good reasons for leaving a job: you could be looking for a compensation bump, different responsibilities, accelerated learning, or simply something novel. Deciding that you might be interested in a new job is the first step, but you have additional mental hurdles to overcome between that step and actually doing something about it.