Workday Integration Developer -Subcontractor

We are seeking a highly skilled Workday Integration Engineer with extensive hands-on experience in building, optimizing, and deploying complex integrations using Workday Studio, Core Connectors, EIBs, Workday APIs, and Cloud Integration frameworks.
This role is fully technical, focused on architecture, development, performance engineering, and troubleshooting-not functional consulting.

Workday Studio & Advanced Integrations

Design and develop high-complexity Workday Studio integrations, including:

Custom multi-step orchestration workflows

Real-time APIs

Large-volume file processing

Error-handling frameworks and exception management

Build scalable components using:

XSLT, XQuery, XPath

MVEL, Java-based plugins (Workday-supported)

Integration event triggers and listeners

Core Integration Development

Build and optimize integrations using:

Core Connectors (CCB, CCW, PICOF/PECOF)

Document Transformation (DT)

Enterprise Interface Builder (EIB - Inbound/Outbound)

Implement delta processing, change detection logic, and effective sequencing.

API & Web Services Engineering

Develop integrations using:

Workday REST APIs

SOAP Web Services

Workday Public Web Services (PWWS)

Build middleware pipelines consuming Workday APIs for high-throughput systems.

Apply API authentication models including:

OAuth 2.0

Certificate-based authentication

WSDL/SOAP security

Integration Architecture & Solutioning (Nice to have)

Interpret raw technical requirements and design:

File-based integrations

Event-driven integrations

Real-time synchronous services

Create sequence diagrams, mapping sheets, and architecture flow diagrams.

Propose scalable, fault-tolerant integration models using Workday Cloud Platform tools.

Data Engineering within Workday (Must Have)

Work with large datasets (XML, JSON, CSV) and build transformation logic.

Implement data encryption:

PGP encryption

SFTP/FTPS connections

Ensure compliant, secure data transmission pipelines.

. Performance Engineering (Nice to have)

Conduct throughput analysis, memory optimization, Studio job performance tuning.

Reduce job runtimes via:

Parallelization

Batch processing

Dependency management

Implement monitoring, alerting, and error-handling frameworks.

Testing & Deployment Engineering (Nice to have)

Develop detailed unit test scripts, SIT/UAT support, and automated test cycles.

Perform deployment activities via:

Workday DT

Tenant migrations

End-to-end regression validation

Troubleshoot system logs, Integration Event audit, and Workday Error Framework.