Where you're located might make a big difference in what advice is applicable.

I suspect that something about your resume is throwing people off. Definitely have someone technical review it.

From your interviews, do you have some sense of what's going wrong? Is there difficulty in getting through the technical challenge? Is the code possibly messy in some way? Or maybe you aren't hitting it off well with the interviewer? If you can't figure it out, then maybe a friend will be willing to mock interview and give some suggestions.

Finally, if you perform well on the job, then interview at a place with a coworker who thinks highly of you. Their reference can help get you through any bumps in the interview process, and they might even be able to pass along more detailed feedback.