Max worked on the influxdata/telegraf repository, where he implemented certificate-based user authentication for the OPC UA client using Go. His approach updated the backend authentication logic to incorporate private-key handling, ensuring that authentication options now include the private key as part of the credential flow. This change enhanced the security of OPC UA connections by reducing credential exposure and aligning with enterprise compliance requirements. Max’s work focused on backend development and security, delivering a traceable, auditable update that supports security hardening without disrupting existing configurations. The depth of the change reflects careful attention to secure authentication practices.