CodePlus is a Computer Science engagement project which has been running in Trinity College Dublin since 2014. Its focus is on addressing the gender imbalance in the field by engaging female students in CS activities in order to help them make more informed choices about studying CS courses and pursuing careers in the field. The project has grown and developed since its inception and in the past 5 years has engaged over 1,000 secondary school girls in 20 hours of coding workshops.