I would lean towards hiring devs, even if remotely, as opposed to outsourcing. Especially if your startup may be handling users' private keys, you will want a

I would lean towards hiring devs, even if remotely, as opposed to outsourcing. Especially if your startup may be handling users' private keys, you will want a trustworthy domestic dev team. The last thing you want is millions of dollars (or bitcoins!) worth of your users' deposits to disappear without a trace overseas.