Which demand gen tech tools have you been able to implement yourself, without engineering support?

This is a tough question. At a minimum, I would request tracking pixels, which would be a lower level of effort but still require engineering support.

The only tools I can recall offhand where I needed zero involvement from engineering would be Semrush, ChatGPT, Hootsuite, and a few additional social media management tools.

I do view engineering as a close partner to marketing. Their support helps enhance the implementation of tooling. I would love to dive into your specific use case. However, generally speaking, engineering support to some capacity is needed.