Understand the culture of the organisation in which you work especially of what makes a good employee.
My past 30 years in the corporate life, I was an executive and then thrown off the corporate ladder 7 years ago. And its been a slow climb back up since.
What have I learned?
Whatever you do, be competent in your current job. Its the only true currency you have. That being said, no amount of competence will protect you when the next re-organisation comes.
Never forget that relationships in business should be business relationships. You may have a friend or a lover at work, but the relationship will end the moment the opportunity to advance in the business is placed between you and your friend or lover. By the way,I strongly recommend keeping romance outside of the workplace.
Understand that politics id a fact of corporate life,and learn to deal with it. That means you take time to understand the views of the people involved in corporate conflicts,as well as the conflicts themselves.There will be times when you have to choose between being in the right or being employed. Its your choice
Understand the culture of the organisation,especially their expectations of what makes a good employee. They all say they believe in teamwork,dedication,hard-work,etc.But look at the employees who are successful, who get the recognition, who rise quickly - they represent what the company is looking for.What do they do that you can do?
Everything communicates. How you dress, how you stand, how you speak, etc. If you want to succeed in a corporate environment, you have to communicate that you are the kind of employee that represents the corporate success story'.
By Rob Pawlikowski - Quora