Stacie Brown, Jez Brookes and Moya Matthews-George will each be paid 11,000 a year to work as part of the New View team.
Two of the full-time posts will be funded by the Connexions partnership, with additional money provided by the Children's Fund.
The evaluators have undertaken a two-day in-house training course on evaluation and methodologies, and will also work towards a Mentoring Level 2 qualification accredited by the Open College Network. The three have already started evaluating Connexions.
Nicky Peck, quality and standards senior manager at the partnership, said: "The idea is to embed the views of young people within the overall service, and create a proactive approach. It is a two-pronged initiative involving the peer evaluators' feedback at both the developmental stage and the review stage by evaluators and users."
All three evaluators intend to become either a Connexions personal adviser, support worker or youth worker.