Seeking a highly skilled Workday Integration Engineer with extensive hands-on experience in building, optimizing, and deploying complex integrations. This is a fully technical role focused on architecture, development, performance, and troubleshooting, not functional consulting.

The ideal candidate will possess deep expertise in Workday Studio, Core Connectors, EIBs, Workday APIs, and Cloud Integration frameworks. Responsibilities span the full integration lifecycle, from design and development to deployment and support.

Design and develop intricate Workday Studio integrations, including custom orchestration workflows, real-time APIs, and large-volume file processing with robust error handling.

Build scalable integration components utilizing XSLT, XQuery, XPath, MVEL, and Java-based plugins. Implement integrations using Core Connectors, Document Transformation, and Enterprise Interface Builder (EIB).

Develop integrations leveraging Workday REST APIs, SOAP Web Services, and Public Web Services (PWWS). Apply API authentication models such as OAuth 2.0 and certificate-based authentication.

Work with large datasets (XML, JSON, CSV), build transformation logic, and implement data encryption with PGP and secure SFTP/FTPS connections. Ensure compliant, secure data transmission pipelines.

Proven experience in designing and developing complex Workday Studio integrations, including custom workflows, real-time APIs, and file processing.

Proficiency in building scalable components using XSLT, XQuery, XPath, MVEL, and Java-based plugins. Expertise in Core Connectors, Document Transformation, and Enterprise Interface Builder (EIB).

Strong skills in developing integrations with Workday REST APIs, SOAP Web Services, and Public Web Services (PWWS). Experience with API authentication models like OAuth 2.0.

Experience working with large datasets (XML, JSON, CSV) and implementing data encryption (PGP) and secure file transfer protocols (SFTP/FTPS).

Nice-to-have skills include integration architecture design, performance engineering (throughput analysis, memory optimization), testing (unit scripts, SIT/UAT support), and deployment activities (tenant migrations, regression validation).