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# Senior Workday developer

- **Company:** CME Group
- **Location:** Chicago, IL, United States
- **Experience:** Expert
- **Salary:** $114,200.0 - $190,300.0
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Application Integration Architecture, Automation of Tests, BigQuery, Cloud Storage, Continuous Delivery, Data Mapping, Data Structures, Desktop Publishing, Systems Development Life Cycle, Regression Testing, Workday Integrations, Simple Object Access Protocol (SOAP), Data Streaming, Time Tracking Software, User-Centered Design, Web Services, Extensible Markup Language (XML), Extensible Stylesheet Language Transformations (XSLT), Workday Financials, Google Cloud, System Availability, Workday HCM, Software Security, Matrix Reports, Workday Security, SOAPAPI, Kubernetes, Workday Studio, Cloud Connectors, Data Objects, Tools for Reporting, Cloud Integration, EIB, Software Coding, Core HR, Workday, BIRT Reporting
- **Published:** October 30, 2026
- **Apply:** https://www.dice.com/job-detail/a230560c-5333-4241-afdf-9f6b4592906c

## About the Role

* Professional Experience
 + 5+ years of technical and functional development experience in Workday HCM and Financials or a comparable enterprise ERP environment.
 * Technical Proficiencies
 + Hands-on proficiency in Workday integration tools: Workday Studio, EIBs, Connectors, and Document Transformation.
 + Strong technical fluency in XSLT, XML, Web Services (SOAP, REST), Workday Public APIs, Custom Objects, and Custom APIs.
 + Experience with Workday Extend.
 + Demonstrated track record developing complex Workday reports and BIRT templates.
 + Working knowledge of Google Cloud Platform (Google Cloud Platform) development, specifically GKE, Cloud Storage, and BigQuery.
 + Experience with Kainos automated testing for Workday environments.
 * Functional & Domain Knowledge
 + Solid functional understanding of data flows across at least 3 to 4 Workday Financials modules (e.g., General Ledger, Accounts Payable, Accounts Receivable, Billing, Procurement, Projects, Asset Management).
 + Working knowledge of data structures across at least 2 to 3 Workday HCM modules (e.g., Core HR, Compensation, Benefits, Time Tracking, Absence Management, Payroll Interface, Recruiting, Talent and Performance).
 * Security & Operational Standards
 + In-depth expertise in Workday security administration, integration security policies, and least-privileged access implementation.
 + Proven ability to manage enhancement queues, document best practices, and deliver scalable enterprise solutions in a highly regulated environment.

## Description

* Lead the end-to-end design, development, and delivery of enterprise Workday integrations, reporting solutions, and business processes across Workday HCM and Financials environments.
 * Partner with HR Technology, Finance IS, Workday IT, and CME technology teams to guide integration architecture, resolve complex platform issues, and streamline business processes.
 * Champion application security, least-privileged access, and SDLC best practices to safeguard CME Group's sensitive data while driving continuous platform enhancement., + Design, build, test, and deploy robust inbound and outbound integrations connecting Workday with third-party systems using Workday Studio, Core/Cloud Connectors, and Enterprise Interface Builders (EIBs).
 + Implement and maintain Workday Public Web Services, REST/SOAP APIs, Custom Objects, and Custom APIs.
 + Author and optimize complex XSLT scripts for data mapping, transformation, and payload validation.
 * Reporting & Document Design
 + Develop Simple, Advanced, Composite, and Matrix reports tailored to cross-functional stakeholder and audit requirements.
 + Design, test, and deploy complex, high-impact business documents and layout reports utilizing Business Intelligence and Reporting Tools (BIRT).
 * Project Delivery & Cloud Integration
 + Collaborate with HR Technology and Finance IS to lead integration projects, new module rollouts, semi-annual upgrades, enhancement packages, and process redesigns.
 + Integrate Workday processes with Google Cloud Platform (Google Cloud Platform) services, utilizing Google Kubernetes Engine (GKE), Cloud Storage, and BigQuery.
 * Testing & Platform Reliability
 + Incorporate Kainos automated testing to execute regression testing, validate upgrades, and support continuous delivery pipelines.
 + Prioritize the support and enhancements queue, delivering efficient incident resolution and root-cause analysis.
 + Mentor junior developers and establish reusable integration templates, coding standards, and governance best practices.
 * Security & Governance
 + Enforce Workday application security and data privacy across all stages of the SDLC, treating data protection as an absolute priority.
 + Configure and audit Integration System Users (ISU), Integration System Security Groups (ISSG), and integration security policies following a least-privileged access model.