Does bad credit history/defaulted payments affect getting a working visa in the USA?

I am planning to go to US in April. I will be in credit however have missed payments etc and have a bad credit history. Will this affect me getting a visa?

A working visa can be denied for a whole host of reasons. You should talk to your sponsoring employer's immigration lawyers. BTW, you cannot get a work visa for the US withouit a sponsoring company.