Troubleshoot highly complex technical issues spanning databases, APIs, web services, networking, cloud platforms, ERP integrations, authentication, security, and infrastructure components; perform root cause analysis and validate corrective actions and production workarounds. Demonstrated expertise in several of the following: SQL Server, Oracle, PostgreSQL, DB2, Linux/Unix, networking protocols, REST APIs, SOAP services, XML, JSON, Java, web services, authentication protocols, cloud technologies, or application architecture.