Is this job offer a scam?

So, I recently received a job offer for a transcriptionist position via email. I have been applying for a lot of remote jobs and was about to find my application submitted to this specific company. I had to undergo a ‘test’ transcription and complete a interview in the form of a questionnaire. While the company does seem to be legit, I can’t seem to confirm whether they actually offer transcription services. They haven’t asked for any money from me, which was a good sign to me at first. However, today I received an email asking me to sign an employment contract, along with the attached email. Also, all email addresses that I’ve received communication from ends in the company’s name + careers. But I’m still a little uneasy about it. Is this a scam?