Of course you can get salmonella from backyard eggs. No guarantees.
That being said, I'd be happier eating my eggs raw than store eggs because backyard chickens are less likely to harbor nasty bacteria, simply because they aren't under such population pressure and stress as layer house hens. Especially if you keep their bedding and food dishes nice and clean.
Commercial egg producers wash their eggs in chlorinated egg wash. We do too, for our customers. We don't worry about washing the eggs we consume ourselves. Wash eggs in hot water, not cold. washing in water colder than the egg can force bacteria in through the egg's pores. Water hotter than the egg forces dirt and bacteria out.
Just like if it were home-raised meat, take sensible food safety precautions like not consuming raw egg and washing your hands and not cross-contaminating cutting boards, etc.