New product looking for a backend co-founder!

We recently started to work in a very niche CRM for the fitness industry having already A LOT of customers ready to try the product.

We work in collaboration with a known company with thousands of customers and decided a revenue share and equity agreement for the product. The product will be created by us, and the company will leverage their network and customers to sell easily the product in fitness studios, gyms, personal trainers etc.

Our backend engineer was a top engineer but due to his new role in his full time job he can't continue with us.

We are a team of 2 at the moment (front end dev + product guy) looking for a backend engineer (ideally node js, mongodb stack but any backend expert in an alternative solution could do the job). If you are interested please contact me (email in my profile)

The team is very experienced (raised money in the past, co-founded multiple ventures etc.)

Thanks,
George