"No kids" means that better not to have baby during the 1-year contract, not meaning the candidate should not have kids now.
"Working on weekend": Not compulsory, not requiring the staff to work on weekend or even overtime in weekday. prefer working hours is 8:30am - 6:30 pm
I do not think some boss will offer you the salary higher than that I will offer!
Do not heistate, just send your CV as long as you are qualified in 2 or more requirements.
Fresh postgraduate students are also recommended to apply!
The position will open in Feb.