Each year the staff of Career Trek contact past graduates of the program that are now entering Grade 10. These alumni are presented with an opportunity to come back to Career Trek as Junior Staff. Interested alumni are interviewed, with 16 being chosen to participate.

Junior Staff are provided with an opportunity to raise their skills to new heights by training with the program staff, and then being posted to one of the participating post-secondary institutions, where they become Assistant Instructors, Assistant Group Leaders or Junior Campus Coordinators.

This position is a voluntary one. In conjunction with participating high schools, every effort is made to arrange for Junior Staff to learn an academic credit for their work.