There can’t be enough good reasons why changing jobs and companies is good for your career and development. It brings you wider experience, broadens your outlook on work ethics and conditions, presents more career opportunities, expands your network and, of course, gives you better money.
But…. Each time you change your job, department or location – you have to build your “brand” again.
In previous company you were already known, you achieved certain results, built connections, knew the processes and structure. When you join the new company – nobody knows you and nobody cares to know, actually.
This is why you have to build this trust from scratch. You will need to invest a lot of effort from the very start, get noticed, show that you can deliver and that you are a professional.
Remember, at the very start you work hard on your reputation, then your reputation will work for you.