My first job in embedded systems required everyone to do pretty much all of these things. Each developer handled their own modules from user facing UI through to the HW (more or less). We had to architect and design things before implementing them (No one checked.. and it wasn't enforced... it's just the way the culture works) we then became individually responsible for implementation and bug fixing until the QA dept said it was A+.
After that there was a module review by 5 randomly selected engineers that would tell you what parts of the module was a messy hack and make you go fix it. I miss this culture.
After that there was a module review by 5 randomly selected engineers that would tell you what parts of the module was a messy hack and make you go fix it. I miss this culture.