When my girl was a baby, she couldn't sleep well, too. Then my husband's friend taught me to bath the baby before bedtime, miraclely, my girl slept well immediately. My friend even bath her baby before afternoon nap.
To have a bottle of water ready beside bed, so that when your baby wakes up, your maid can give him some water (sometimes, baby wakes up due to thirsty).
Ask you maid to pamper your baby in bed (keep your baby in bed), instead of holding him up. After a few times, your baby will learn that no matter how he cries, no one will hold him up, then he will give up and fall asleep again.