Senior Network Operations Engineer
- Location
- Chicago - 20 S. Wacker
- Work mode
- On-site
- Employment type
- Full-time
About the job
Our vision of the Network Operations group, is to gather sharp engineers that are passionate about the field of networking and surround them with like-minded individuals, constantly striving to innovate the operation and architecture of our large global network. On a typical day, you can be presented with enterprise level security issues one minute, troubleshooting market data multicast routing the next minute, all while working on a wireless problem on one of our trading floors.
We are constantly looking for engineers that aren’t afraid to contribute a fresh perspective, so if you love working in a dynamic high paced environment with no silos, we look forward to hearing from you
Responsibilities:
- Lead in the troubleshooting of network based issues, being able to clearly analyze the problem at hand while interfacing with other departments to organize and control incident response
- Ability to work on simultaneous change implementations, with a focus on automation, documentation and collaboration with other teams
- Frequently engage in complex issues with both internal and external customers, with an emphasis on being able to analyze packet captures
- Work with the engineering team on operational acceptance testing for new environments, while being able to analyze gaps in procedures and documentation.
- Stay on top of emerging technologies in the network field, either through training or research, in order have the flexibility to learn and support a multi-vendor environment
- Constantly evaluate existing designs or processes, while not being afraid to propose and implement changes to them
- React to an ever changing global network, through configuration management, documentation, whilst engaging with different departments and business units
Essential Experience:
- Bachelor's degree or equivalent combination of education and related work experience
- Demonstrable industry experience (financial services and/or large scale unicast and multicast networks is a big plus)
- Extensive in-depth knowledge and troubleshooting expertise of routing and switching protocols (OSPF, BGP, STP)
- Experience designing and/or supporting large scale multicast networks, with a focus on financial market data feeds.
- Experience in network monitoring, packet capture tools or software defined networking
- Excellent understanding of security best practices in relation to all aspects of the network (Firewalls, Proxies, Penetration Scans, SSL, IPsec, Dot1x)
- Experience implementing and troubleshooting wireless networks (standards, security, radio placement, etc)
- Fundamental knowledge and theoretical understanding of software and hardware load balancers
- Familiarity and/or experience with scripting languages and automation tools, with a focus on operationalizing mundane tasks and speeding up deployments
- Big-picture understanding of the networking concepts behind virtual environments and various hybrid cloud initiatives
Available Schedules:
Tuesday - Saturday, 12pm - 8:30pm CT Wednesday - Sunday, 12pm - 8:30pm CT
#LI-RP1
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 $54.90--$91.49. 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 .
From CMETS CME Technology and Support Services Ltd.'s careers page (Workday), checked 29 Oct 2026.
How to apply
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Posted 29 Oct 2026 · checked 29 Oct 2026 · Report this job