The challenges of working with ZAI is that they do not take care of there employees. I have worked in my current position for two years. ZAI took over the contract a year ago. The contract that i am under is the easiest contract a contracting company could negotiate with the government. Our pay was based on the tasks that we perform. The tasks and the daily operations of the position have increased 25-30%. There is no incentive to work and you don't see a representative from the company. They will not consider raises for employees and they will use you to get the job done.