Bargaining is conducted for employees by “bargaining representatives”. If you are a union member, the union is automatically your bargaining representative (unless you appoint someone else, which almost no-one ever has). Negotiations can be complex and require technical skill to prevent inadvertent losses of conditions or rights for employees. NTEU bargaining teams always contain a technical specialist as well as trained local members who have the local knowledge and experience to ensure that employees are heard from directly.