N.J. Stat. Ann. § 18A:16-1

Each board of education, subject to the provisions of this title and of any other law, shall employ and may dismiss a secretary or a school business administrator to act as secretary and may employ and dismiss a superintendent of schools, a treasurer of school moneys, when and as provided by section 18A:13-14 or 18A:17-31, and such principals, teachers, janitors and other officers and employees, as it shall determine, and fix and alter their compensation and the length of their terms of employment.