Let's look at the trade:
"I’m looking for a technical cofounder who is ready to commit in the next 2-3 months and work in-person in San Francisco. I’m looking for them to do Product, Design, and Engineering."
This requires a lead level engineer, say $200k to $500k/year salary in SF. Given that this is a 2~3 month engagement, we'd double that for contractor rate and pro rata. I'd estimate this is $100k to $250k of time.
"I’m committed to healthtech and have a few ideas, but willing to work on other ideas in healthtech."
Great, this is worth about $0.
This doesn't seem like a fair trade.
What's worse is that "Rob Balian" is a CTO with product manager background. Instead of looking for a co-founder to complement his skillset, he's duplicating the skill set.