Senior Workday developer

Chicago Mercantile Exchange•Chicago, IL

5d•Hybrid

About The Position

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 sensitive data while driving continuous platform enhancement. The role covers integration engineering and architecture; reporting and document design; project delivery and cloud integration; testing and platform reliability; and security and governance. Responsibilities include developing and maintaining Workday integrations, APIs, reports, and business documents; supporting projects, upgrades, and process redesigns; integrating with Google Cloud Platform services; improving testing and incident resolution; mentoring junior developers; and enforcing security and data privacy practices. This is a hybrid role requiring two days per week at the Chicago office. Candidates must be local to the Chicago area.

Requirements

At least 5 years of technical and functional development experience in Workday HCM and Financials or a comparable enterprise ERP environment.
Hands-on proficiency with Workday Studio, EIBs, Connectors, and Document Transformation.
Strong technical fluency in XSLT, XML, SOAP and REST web services, Workday Public APIs, Custom Objects, and Custom APIs.
Solid functional understanding of data flows across at least 3 to 4 Workday Financials modules.
Working knowledge of data structures across at least 2 to 3 Workday HCM modules.
In-depth expertise in Workday security administration, integration security policies, and least-privileged access implementation.
Ability to manage enhancement queues, document best practices, and deliver scalable enterprise solutions in a highly regulated environment.
Must be a local candidate in the Chicago area and able to work onsite in the Chicago office two days per week.

Nice To Haves

Experience with Workday Extend.
Experience developing complex Workday reports and BIRT templates.
Working knowledge of Google Cloud Platform development, specifically GKE, Cloud Storage, and BigQuery.
Experience with Kainos automated testing for Workday environments.

Responsibilities

Design, build, test, and deploy inbound and outbound Workday integrations 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 XSLT scripts for data mapping, transformation, and payload validation.
Develop Simple, Advanced, Composite, and Matrix reports for stakeholder and audit requirements.
Design, test, and deploy business documents and layout reports using Business Intelligence and Reporting Tools (BIRT).
Collaborate with HR Technology and Finance IS to lead integration projects, module rollouts, semi-annual upgrades, enhancement packages, and process redesigns.
Integrate Workday processes with Google Cloud Platform services, including Google Kubernetes Engine (GKE), Cloud Storage, and BigQuery.
Use Kainos automated testing for regression testing, upgrade validation, and continuous delivery pipelines.
Prioritize support and enhancement queues, resolve incidents efficiently, and perform root-cause analysis.
Mentor junior developers and establish reusable integration templates, coding standards, and governance best practices.
Enforce Workday application security and data privacy throughout the SDLC.
Configure and audit Integration System Users (ISU), Integration System Security Groups (ISSG), and integration security policies using a least-privileged access model.