Job-hopping frequency is too high. How to foster strengths and avoid weaknesses in resumes? Can I combine two or three work experiences into one? Can the employer find out?
This practice is strongly discouraged, and it is not advisable to conceal work experience or merge. Regular enterprises will do background checks, perhaps HR will do it by itself or entrust a professional investigation agency. Every job-hopping, along with leaving and joining, your personal file will be displayed. As long as the company insures you, it will definitely find out. Don't underestimate HR's connections, let alone count on luck.