Ohh yes ,i am also looking for something like this. I found some options in non profit org. jobs.You can search jobs in there . I follow indeed jobs for non profit orgs. But it always asks for 5+ years experience , so its not helping me. May be it will be helpfull for you.
You can call and check with HR. It depends on nature of work. If you are in IT and programming, I do not think part time options are going to help even if available. If you are more in management side, or sales or paper/form-filling/clerical work, there are companies with limited hours for women.