Dear Brother,
As you are already aware of the fact that I am 2014 applicant. So, after that, 2015 & onward new system (Express Entry) has been introduced which I am not fully aware of thats why I have given you the above link.
Secondly, many of us (forum member) were applied through renowned (???) VISA services like SA and VISA center Ins (including myself), but, in reality these visa services have ruined our life as all are fake.
Well, regarding GIC, one of my Ex-college of Prime Bank has applied through them and he is quite satisfy. But I donot know nothing about them and I personally have bitter experiance with these so called VISA services.
regarding Job offer, you need to upgrade yourself a lot to receive a decent job offer from Canada while you are at Bangladesh,
But, never loose hope. As I never give up and finally after 3 years of apply finally I am fling this month to CAD.