I think even in the EU and Canada, you don't have any copyright interest in work your perform as part of your employment. The copyright on the work you produce for your employer is entirely theirs, from the moment it is created.
Now, if you're a contractor performing work for a company, this may be quite different. But as an employee, I don't think you have any claim of authorship to the code you right as part of your job.
Now, if you're a contractor performing work for a company, this may be quite different. But as an employee, I don't think you have any claim of authorship to the code you right as part of your job.