CME Group is seeking a Staff Engineer for their Data Platform team to design and build scalable data infrastructure solutions that support trading and risk management applications. Key responsibilities include developing distributed data systems, optimizing data pipelines, and collaborating with cross-functional teams to deliver high-quality data services. Candidates should have strong expertise in big data technologies, software engineering principles, and experience with cloud platforms. This is a full-time role based in the Chicago area, offering an opportunity to work at a leading global derivatives marketplace.