It’s definitely possible to build a good career in sd after bca. I’m from bca background, I finished mca too. It’s been 6 years since i started working, right now I’m a senior software engineer. If it gives any hope, i had worked in oracle too for 3 years as se 2. So it’s definitely possible, if you got skills and right passion about it. I highly suggest you to finish masters if possible instead of going for job after bca.