Arnold van Wijnbergen developed and delivered a threat intelligence sharing integration for Azure/Azure-Sentinel, enabling secure collaboration with the Dutch National Cyber Security Center. He engineered a solution package that included ARM Templates, deployment metadata, and a playbook to convert Sentinel data into STIX bundles, supporting repeatable deployments across environments. In MicrosoftDocs repositories, Arnold improved documentation accuracy by correcting SIEM-related terminology and clarifying Logstash version and licensing requirements using Markdown and JSON. His work addressed both technical and documentation challenges, demonstrating depth in cloud security, SOAR, and threat intelligence, while ensuring robust, interoperable solutions for enterprise and national security contexts.