Jobs › CME Group

Sr Systems Engineer- Reliability Engineering and Operations

CME Group · Chicago, IL · $108,700–$181,100 a year · Full time

Posted May 4, 2026 · We last checked this listing on Oct 4, 2026

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Likely interview questions for this role

Written from this job description, not a generic list. Each one notes what the interviewer is really checking.

About your past

Tell me about a problem where you had to write a clear problem statement, compare options, and get a plan approved before you could act.

What they are checking: Whether they slow down to define the problem and weigh alternatives, which this role asks for in writing.

Tell me about a time you documented something so well that someone else could support it without calling you.

What they are checking: Whether they see documentation as part of the job, which matters on a team that hands off support across shifts.

Tell me about an outage you helped resolve. What did you change afterward so it would not happen again?

What they are checking: Whether they follow through on root cause and prevention, which is the core of reliability work.

What would you do

A business team asks for new servers by Friday, but their requirements are vague. How do you handle that conversation?

What they are checking: Whether they can draw out real requirements from customers and push back politely on a deadline that hides risk.

During market hours, a server you maintain throws errors but the business says not to restart it. What do you do?

What they are checking: Whether they can weigh business risk against technical risk and find a safe path when the obvious fix is off the table.

About the work

Walk me through how you'd use SCCM to push a patch to a few thousand Windows servers without taking down anything that supports trading.

What they are checking: Whether they stage deployments, use collections and maintenance windows, and plan a rollback before touching production.

A group policy change in Active Directory starts locking users out across one site. How do you find the cause and fix it?

What they are checking: Whether they know how GPO precedence, replication and scope work well enough to isolate a change under pressure.

An application on a clustered Windows server is slow, but CPU and memory look fine. Where do you look next?

What they are checking: Whether they understand how disk, network, virtualization and the app itself interact, rather than stopping at the obvious counters.

What's a manual task you automated with PowerShell or another script, and how did you validate it before trusting it in production?

What they are checking: Whether they treat automation as code that needs testing, not a quick fix that can quietly break things at scale.

How do you decide whether a workload belongs on Windows, Linux or OpenShift when a team asks for new infrastructure?

What they are checking: Whether they can match platform choice to the app's real needs instead of defaulting to what they know best.

How do you think about security when you configure a new Windows server for a market-facing environment?

What they are checking: Whether hardening, least privilege and patching are built into their default build rather than added later.

Practice this interview out loud.

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The full job description

As published by CME Group.

The Sr Systems Engineer supports the Reliability Engineering and Operations (REO) at CME Group. The incumbent must have strong knowledge of Windows server administration, configuration, networking, scripting and automation, large scale distributed computing, hardware/operating system/application interaction, and security. Strong communication and documentation skills are required as the candidate will typically be working with customers for support and new initiatives. Principal Accountabilities: • Accurately defines problem statements, gathers and compares data about the problems and documents the details; Prepares analysis report and seeks out all feasible alternatives; Prioritizes the alternatives and works out a plan for execution with supervision. • Demonstrates knowledge of skilled systems (Windows/Linux/Openshift), distributed computing architecture (client server, intranet/internet), h/w platforms and resources - CPU, memory, virtualization, clustering and cloud computing. Configures systems and modifies settings to ensure proper functioning; Handles most implementations without support, including script implementation and validation, automating where possible; Provides routine maintenance of systems. Has expert knowledge of SCCM and Active Directory. • Gathers requirements from customers and analyzes the environment scope for business requirements; Facilitates hardware and software requirements; Maintains the availability of environments for projects; Follows application deployment/configuration plans and implements execution environment plans. • Troubleshoots most known and some new issues, determines the root cause, provides solutions, and takes initiative to see the solution through; Identifies problems and provides solutions; Verifies implementation and makes adjustments as necessary; Documents solution and provides clarification and support to others. • Expertise in engineering scalable GCP infrastructure using Terraform, GIT, Stash and implementing SLO/SLI-driven observability. This role requires a Tuesday-Saturday shift, working standard business hours. There is a 10% shift differential pay for weekend work. 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 $108,700-$181,100. 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 .

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