The conjunction in this sentence is the word 'and'
We refer to this conjunction as a coordinating conjunction, because it joins two words (or phrases) of equal rank - the noun <em>teacher</em> and the noun <em>counselor</em>, in this case. Other coordinating conjunctions include: <em>but, nor, or, so, for, and yet.</em>
To avoid confusion, word 'as' in this sentence is not a conjunction - it is <u>a preposition</u> we use when we describe the role/purpose/occupation of something/someone.
<u>Subordinating conjunctions</u> are used to introduce a subordinating clause, which is also not the case here. These include <em>although, because, even though, </em>etc.