SOAP API Technical Documentation Copywriter

I have a fully functional SOAP-based service and a stack of engineering notes that now need to become clear, developer-ready documentation. Your task is to turn the existing WSDL, sample XML requests / responses, and authentication details into polished content that can live on our public developer portal.

The finished work should:
• Present an accurate endpoint-by-endpoint reference (operations, parameters, data types, fault codes).
• Include at least two task-oriented tutorials that guide a first-time integrator from authentication through a complete request / response cycle.
• Provide tested XML code snippets that compile and run against our staging environment.
• Follow consistent style, heading hierarchy, and terminology so it feels at home beside docs from providers like Salesforce or AWS.

I will give you:
– Access to the staging server and WSDL file.
– A rough wiki outline and Postman collection.
– Direct Slack contact with the lead backend engineer for clarifications.

Accuracy is critical, so I expect you to verify every example against the live endpoint before delivery. Please share links to previous SOAP or closely related API docs you have authored, along with your estimated turnaround time for roughly 25 operations.