Testing, quality assurance, and test automation - Develop test strategies, scenarios, and scripts; execute unit, system integration, regression, parallel, and user acceptance testing (UAT); design and build automated testing and data validation utilities using Python and Alteryx to accelerate regression cycles and perform large-volume data comparisons; track, manage, and triage defects using JIRA; perform root-cause analysis and implement fixes prior to deployment. Integration development - Design, develop, and troubleshoot integrations between Workday and external systems (banks, tax engines, procurement platforms, legacy ERPs) using Workday Studio, Enterprise Interface Builder (EIB), Core Connectors, Workday Web Services (SOAP/REST APIs), XML, and XSLT.