In Standard English, the word because can be used to introduce a clause (subordinating conjunction) or paired with of to form a compound preposition. Recently, because has been used in non-standard English to introduce a noun phrase (because noun), as such, behaves like a preposition. source: https://www.quickanddirtytips.com/education/grammar/because-as-a-preposition
Jack got a raise because he did a good job.
Jack got a raise because of his good performance.
Jack got a raise, because efficiency.
(Adding a bit of emphasis on because and a pause - half a beat, almost like stopping before a comma, before the word efficiency)
Consider the following sentence.
Because Jack does the job so well, he can expect a raise.
Following Standard English, is the because in the sentence above considered a subordinating conjunction despite sentence order?