As a software engineer for 20+ years, I've talked with my sister, who is an ER doctor about this often. Most folks outside of engineering think our interview processes are crazy.
Keep in mind, there's significantly more training that goes into the medical field, so there's more emphasis on the institutions. Where did you go to school? What hospitals or facilities did you work with? Your resume and references speak more strongly.
Other hurdles in software engineering hiring:
- It's both a technical and (often) a creative field.
- Most work requires teams to complete and there's very little insight into who contributed what into a project.
- You don't have many of the signals from other fields, such as published papers, law cases, or hard numbers such as sales, certifications, etc.
Long story short: we don't have good mechanisms within companies to measure engineering productivity, let alone measure programmers outside of an institution.
I'm reminded of Steve McConnell's intro to "Software Estimation":
"Meanwhile, the typical software organization is not struggling to improve its estimates from +/-10% to +/-5% accuracy. The typical software organization is struggling to avoid estimates that are incorrect by 100% or more."