Hey, you should be looking for someone with marketing experience, more specifically building funnels. You'd ideally conduct customer interviews yourself also. But before that you'd need to define a good set of questions.
It seems like while you do manage to capture traffic, you fail to convert it fully - based on retention rates you're posting, they're not getting the outcome they thought they'd get based on your landing page/s. If that's the case it might be time to explore what other pains they have, revisit old ones and make sure you're solving those, and also communicating everything to them framed as outcomes they'll get by subscribing.
I'm a web developer myself, building products in my free time all the time. Let me know if you'd want to chat, it's pretty lonely out here :D
It seems like while you do manage to capture traffic, you fail to convert it fully - based on retention rates you're posting, they're not getting the outcome they thought they'd get based on your landing page/s. If that's the case it might be time to explore what other pains they have, revisit old ones and make sure you're solving those, and also communicating everything to them framed as outcomes they'll get by subscribing.
I'm a web developer myself, building products in my free time all the time. Let me know if you'd want to chat, it's pretty lonely out here :D