The new airport is due to open in December with the old one staying open until mid next year. More tower controllers are required for the split site not to mention radar are very short staffed as it is. Poor roster pattern (3 on 1 off) combined with uncompetitive salary for the region, 45 days annual leave (to be taken in only 3 blocks) and QCAA not paying full school fees mean people are looking elsewhere.
I have heard a mass exodus is due in the near future which could make a challenging environment even worse (a friend I have there reports that there will be only 6 radar ATCOs available in August due to annual leave and resignations).
Unless things change there it will only get worse. Do yourself a favour if you're looking and come to the UAE