Taking a quick look at the Bitrix24 API documentation, they appear to actively encourage and support 3rd party integration, which is going to be important for any developer you hire. So you're off to a good start there. (
training.bitrix24.com/rest_help/index.php
)
My company Polished Geek is an authorized HikaShop partner and also has many years of experience integrating Joomla eCommerce with external systems. I'd like to learn more about your project and how we can help create a CRM solution for you that seamlessly integrates with HikaShop. Please open a ticket here to connect and get the discussion started:
PolishedGeek.com/clients/contact.php
Looking forward to hearing from you,
~ Deb Cinkus
~ Deb Cinkus, CEO
Polished Geek: more with monday․com
eCommerce Business Process Automation Experts