You cannot use your experience  that you gained @ the current company for writing job description.Frankly,  I have no real idea how to file for labor through Dhoti company but be sure to check if there is any successful  perm application through your employer. If they have any records of tax evasion or company is operating in loss, talk to your lawyer before you proceed & invest your money and time. In such case, chances of your I-140 denial will be very high.