This is a hybrid role, 2 days on site in our Chicago office. We are looking for local candidates in the Chicago area only. Senior Workday Developer Role Overview 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. Principal Accountabilities Integration Engineering & Architecture 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 (GCP) 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. Qualifications & Experience 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 (GCP) 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. #LI-DS2 #LI-Hybrid CME Group is committed to offering a competitive total rewards package for our employees that recognizes their contributions to the business and reflects our long-term investment in their future. The pay range for this role is $114,200-$190,300. Actual salary offered will be dependent on a wide array of factors including but not limited to: relevant experience, skills, education and comparison to internal employees (where relevant). Our compensation program also includes an annual target bonus opportunity for all employees, as well as the opportunity to become an owner in the company through our broad-based equity program. Through our benefits program, we strive to offer flexibility, value and choice. From comprehensive health coverage, to a retirement package that includes both a 401(k) and an active pension plan, to highly competitive education reimbursement provisions, paid time off and a mental health benefit, CME Group offers a holistic benefits package for our team and their dependents. CME Group: Where Futures are Made CME Group is the world’s leading derivatives marketplace. But who we are goes deeper than that. Here, you can impact markets worldwide. Transform industries. And build a career by shaping tomorrow. We invest in your success and you own it – all while working alongside a team of leading experts who inspire you in ways big and small. Problem solvers, difference makers, trailblazers. Those are our people. And we’re looking for more. At CME Group, we embrace our employees' unique experiences and skills to ensure that everyone’s perspectives are acknowledged and valued. As an equal-opportunity employer, we consider all potential employees without regard to any protected characteristic. Important Notice: Recruitment fraud is on the rise, with scammers using misleading promises of job offers and interviews to solicit money and personal information from job seekers. CME Group adheres to established procedures designed to maintain trust, confidence and security throughout our recruitment process. Learn more here. As the world’s leading derivatives marketplace, CME Group is where the world comes to manage risk. We enable clients to trade futures, options, cash and OTC markets, optimize portfolios, and analyze data – empowering market participants worldwide to efficiently manage risk and capture opportunities. CME Group exchanges offer the widest range of global benchmark products across all major asset classes based on interest rates, equity indexes foreign exchange energy agricultural products and metals. We meet uncertainty and volatility with confidence and clarity, across the trading lifecycle and around the world. Hear more about our employee experience Get a look inside CME Group and see what makes us tick A rewarding career is only the beginning Best Place to Work Recruitment fraud is on the rise, with scammers using misleading promises of job offers and interviews to solicit money and personal information from job seekers. CME Group adheres to established procedures designed to maintain trust, confidence and security throughout our recruitment process. Additionally, CME Group does not communicate with job applicants over Telegram. Learn more here. For U.S. employment, CME Group is legally required to validate a new hire’s employment eligibility by having them complete an Employment Eligibility Verification (Form I-9) companied with legally acceptable proof of identity and work authorization (as listed on the Form I-9). CME Group uses E-Verify, which is an online system operated by the U.S. Department of Homeland Security in partnership with the Social Security Administration to verify employment eligibility and validate social security numbers. Through participation in the E-Verify program, information entered on Form I-9 will be provided and compared to information available at both of these agencies. See posters below for more details. E-Verify Notice E-Verify Notice Español U.S. Right to Work Notice U.S. Right to Work Notice Español

Senior Workday developer.

more at Cmegroup.

Cyber Defense Engineering II - Endpoint Protection

Platform Engineer II

Security Officer 2 - Weekend Coverage

similar roles.

Graduate - Service Operations

Mobile Plant Fitter

Presser I

Senior Software Engineer

AVP Digital Engineering - Onboarding

Principal Software Engineer