Since you've provided absolutely no information about the job offer, no one can tell you.
I will wager that it's fake.
Some signs:
- Abnormally high salary
- Promised airfare and "feeding"
- Suggestions that there is an Attorney assigned at the Canadian Consulate to handle visa matters
- Request for you to pay fees
- Offers for an additional fee to waive IELTS scores
etc etc etc
However, if you post the actual job offer, we can all enjoy the comedy of the fakery.
Someone else has already had a fake offer from Emanent Construction in Saskatchewant:
WORK PERMIT APPROVAL/WORK VISA PROCESSING APPROVAL
REF NO:CJCIMV/9189/6567
FILENO:ICV/9153/991/2019
Dear Applicant
With reference to your visa and work permit application submitted by BarristerGladyJ. Hardy (esq) of Barrister LawrenceH. Ezekiel (esq) Located at ( 7th Floor,1945 Hamilton Street, Regina Saskatchewan S4P2C8, Canada). The Immigration Home Office Saskatchewan, hereby approved your file and the approval reference has been transferred to High Commission of Canada, with request by your employer on diplomatic preference over your file, which all the required documents has been provided by their firm (Emanent Construction) under their employment license. An Immigration Officer has been approved in charge of your file to oversee and guide you through to secure your visa and work permit without any difficulty.