Zoho CRM / Make / Integromat Multi-Organisation Expansion

We have developed and adapted Zoho-CRM to fit real-estate agent applications and would now like to roll it out to multiple organizations and customers. For this purpose, we're looking for an experienced freelancer who has thorough experience with Zoho CRM and the Zoho-suite (Campaings etc.) overall to accompany us on a regular basis in the course of developing the functionalities further. Also, experience with html/webhooks/make/integromat/zapier/API would be highly welcome.