Senior Linux Platform Engineer - hybrid; Chicago, IL or Overland Park, KS

Senior Linux Platform Engineer - Flexible Hybrid (Chicago, IL or Overland Park, KS)

At Cboe, we inspire our people to solve complex challenges together because what we do matters. We provide the financial infrastructure that powers the global economy. As a leading provider of market infrastructure and tradable products, Cboe delivers cutting‑edge trading, clearing and investment solutions to market participants around the world.

We are seeking a Senior Linux Platform Engineer to join our Systems Platform Engineer team. In this role, you will be responsible for managing and improving our highly automated Linux‑based systems and platforms while supporting our broader technology infrastructure with a focus on automation. You will work collaboratively with our technology and operations teams to ensure the highest levels of system performance, security, and availability.

• Managing and improving our Linux‑based infrastructure with a focus on performance, reliability, and scalability.
• Designing, deploying, and maintaining on‑premises Kubernetes clusters and containerized workloads.
• Developing and maintaining system‑level software, middleware, and APIs to support internal platforms and services.
• Automating system workflows and infrastructure tasks using Python, Bash, and configuration management tools like Salt Stack.
• Building and maintaining RPM packages and internal software repositories.
• Collaborating with Application Support (SRE), Development, and Security teams to ensure secure, automated CI/CD and platform integration.
• Diagnosing and resolving complex system‑level issues involving the OS, network, or container runtime.
• Implementing hardened security configurations, including system hardening, secure communications, and identity/access integration.
• Participating in an on‑call rotation to support critical infrastructure services.
• Documenting architectures, tools, and operational processes to support long‑term maintainability.

• 5+ years of experience in Linux systems administration and infrastructure/platform engineering.
• Production experience managing Kubernetes, preferably in bare‑metal or on‑premises environments (e.g., with kubeadm, RKE, or Open Shift).
• Strong scripting and automation skills in Python and Bash.
• In‑depth knowledge of Linux internals, kernel tuning, and performance diagnostics.
• Hands‑on experience with Salt Stack (preferred), Puppet, or Ansible for configuration management.
• Familiarity with observability tools such as Prometheus, Grafana, or Loki.
• Solid understanding of core infrastructure protocols and services (TCP/IP, DNS, NTP/PTP, DHCP, etc.).
• Experience managing CI/CD pipelines with tools such as Jenkins, Git Lab, or similar.
• Strong troubleshooting skills and a proactive approach to problem‑solving.

• Certifications such as RHCE or LFCE.
• Experience with container runtimes (containerd, Docker) and registry management.
• Knowledge of Git Ops workflows or tools like ArgoCD or Flux.
• Background in security best practices and compliance (e.g., CIS benchmarks, STIGs).
• Prior experience in highly regulated or low‑latency environments.

• Fair and competitive salary and incentive compensation packages with an upside for over achievement.
• Generous paid time off, including vacation, personal days, sick days and annual community service days.
• Flexible, hybrid work environment.
• Health, dental and vision benefits, including access to telemedicine and mental health services.
• 2:1 401(k) match, up to 8% match immediately upon hire.
• Discounted Employee Stock Purchase Plan.
• Tax Savings Accounts for health, dependent and transportation.
• Employee referral bonus program.
• Volunteer opportunities to help you give back to your communities.
• Complimentary lunch, snacks and coffee in any Cboe office.
• Paid Tuition assistance and education opportunities.
• Generous charitable giving company match.
• Paid parental leave and fertility benefits.
• On‑site gyms and discounts to other fitness centers.

We’re proud to be an equal opportunity employer—and celebrate our employees’ differences, including race, color, religion, sex, sexual orientation, gender…