You can do the employee satisfaction survey based on the following:
1. Prepare a questionnaire for each level you want to measure the satisfaction.
2. Do an interview either as a whole group or as a individual.
3. If required you can hire external person in doing this survey as the employees might come out with more grievances if they have any.
4. Try to meansure this based on the scorecard of each survey independently by taking the feedback in case of low scores.
Hope this might be helpful to you.
Thanks,
Anand