UX/Product Designer here. To what degree do engineers care about user-research?

Going directly to the source because I've thought about this many times during my career, but have always been semi-too afraid to ask in person.

If you care about research, how can I (the designer/researcher) best deliver the research I've made to you (the engineer)? How much do you want to be involved?

I've also posted this on r/SoftwareEngineering, r/softwaredevelopment & r/frontenddevelopment to get more widespread feedback.