When an employer scans your resume for 20 seconds, what will they see? If you have had a series of jobs lasting 1-2 years, then you may look like a job hopper and these are big red flags on your resume. Securing a candidate takes time and money for employers, so a candidate that has a record of job hopping does not leave a positive impression and sways employers to move on to consider other candidates instead. Short periods of employment generally indicate that you were terminated due to lack of performance and that is not the impression you want to convey. Read more.