Build a portfolio that speaks for your work and experience. Take those projects and make them worth to be shown. That way you can show concrete examples of your work with programming. Make them open source, show them on your github account, that way the interviewer will know that you have an idea of the workflow. Even better if you can get some issue on an already existing project you'd like to contribute, fork the repo, fix it and get it merged (repeat).
That will help a lot, if you fail in a couple of programming questions they can relay on your ability to learn and get things set up and running as your previous projects.
That will help a lot, if you fail in a couple of programming questions they can relay on your ability to learn and get things set up and running as your previous projects.