I received an offer from NTU. The job grade is E4 and they are offering me $5K (AWS will be given), was told that bonus for average performer is about 1 month plus. I asked about the ceiling but HR declined to reveal but was told that the offered salary is still far from the ceiling. Increment is about 2.5% a year. I am still pondering whether to accept this offer as the overall package is lower than my current one, moreover this is a contract job.