Develop Zapier + LiveAgent integration

I'm looking for an experienced Zapier integration specialist/REST API specialist. Task: Create a Zapier intergration with LiveAgent. The integration has to meet Zapier's developers requirements to be published as a public integration. List of actions and triggers that will be used in the integration: Transfer conversation to another department and/or agent Delete conversation Delete custom field value in conversation Add custom field value to conversation Retrieves conversation info Retrieves all conversation messages Create new message in conversation Create new conversation Change status of the conversation Unassign a tag from a conversation Retrieve a list of tags assigned to a conversation Assign tag to a conversation Delete custom field value in user contact Add custom field value to customer Retrieves all customers Retrieves customer info Remove customer from group Retrieve customer groups Add customer to group Register new customer LiveAgent complete REST API reference: [login to view URL] When applying for this job, please provide relevant experiences with Zapier.