When you land a job after graduation it won’t just end there, as you should always be learning and developing your skills and abilities, also gaining experience along the way. Never be complacent in your job thinking that you are doing ok and that you will have a long term position in your job. Remember that you should always be expanding your skills and learning on the job as you progress and work on different tasks and problems, whether complex or not.
If you make yourself valuable to the company and the work that you are doing is being noticed and as a result you become an asset to the company and the team you are working in, be sure that you will have many more years working for that company for as long as you want and need to stay there for; your job could easily evolve into higher positions within the company depending on the size and structure of your company.
When the job goes stale and there is no progression you will need to rely on what you have learned and expanded on for other opportunities in an other company; what you know can be used to get you a job elsewhere. If you know your stuff and can relay that well to a potential future employer then that could mean the difference between landing the job or not.