Preschooler Tantrums

Hi moms, I'm a first time mom and my child is already 4 yrs old. Her tantrums are getting worse ever since I started working. Even though I'm a WFH mom, her dad and I are on a night shift so mostly during the day we are asleep. Lately we observed that her tantrums are getting worse that before. Is she lacking attention from us? Any advice please.