A dozen malls across Massachusetts and New Hampshire are hosting job fairs on Wednesday and Thursday as more than 100 businesses try to fill vacant positions. Stores and restaurants with open positions include Sephora, Forever 21, American Eagle and Starbucks, according to Simon Malls, which operates the malls. Sign up for our Newsletters The job fairs are being held from 11 a.m. through 2 p.m. and from 5 p.m. through 7 p.m. on both days....