Engineer, Application Security

About this role

Job Description: About   Cboe   Global Markets  

At   Cboe   Global Markets, 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're   building meaningful ways to support professional and personal development while strengthening the trust   we've   earned as a global market leader. Our teams are empowered to share ideas, actively pursue   them   and bring on a challenge. As champions of internal mobility and access to opportunity, we encourage our people to "go for it" and equip our managers with the training to coach their teams to the next level. We strive to provide   employees   a safe space to network, share   ideas   and create opportunities.  

Sound   like   the   place for you? Join us!  

Location Overview  

Cboe   HQ is located in the historic Old Post Office   district,   it's a landmark that blends classic architecture with modern amenities. The building features expansive spaces with   high ceilings   and large windows, offering an abundance of natural light and panoramic views of the   city   skyline and the Chicago River.  

With its prime location in the heart of downtown, the OPO Building provides easy access to major transportation hubs, including Union Station and multiple CTA lines, making it convenient for commuters. The building is home to a variety of amenities, including restaurants, a fitness center, and collaborative workspaces, creating a vibrant and dynamic work environment in one of Chicago's most iconic areas.  

Role Overview  

Cboe's   Cybersecurity team is seeking an Application Security Engineer to develop their   expertise   in practical, code-adjacent security within a collaborative and fast-paced environment. This role works closely with application and platform engineering teams to help design, build, and deploy secure containerized services on Kubernetes, applying security fundamentals within defined processes and with guidance from senior engineers. The ideal candidate brings hands-on software development experience and a genui ne interest in growing their application security skills on real-world challenges. This role reports to the Manager, Cybersecurity.  

Your responsibilities will be:  

Secure Development Partnership  

• Partner with engineering teams to improve security of containerized services running on Kubernetes  

• Participate in secure design reviews and threat modeling for new features, services, and APIs  

• Perform code-level security reviews and provide clear, actionable remediation guidance to developers  

Security Tooling & CI/CD Integration  

• Help integrate and   operate   security tooling in CI/CD pipelines, including SAST, dependency and container image scanning (SCA), and secret detection  

• Validate and triage security findings — distinguishing real risk from false positives and helping prioritize remediation based on impact  

Container & Kubernetes Security  

• Contribute to container image security practices including secure base image usage, dependency hygiene, and attack surface reduction  

• Assist   in defining and applying secure coding and deployment standards for Kubernetes workloads, APIs, and service-to-service communication  

Incident Support & Growth  

• Support incident response and post-incident reviews by helping analyze root causes and contributing to preventative fixes  

• Continuously grow application and Kubernetes security skills through hands-on work and mentorship from senior team members  

The ideal candidate has:  

• 2 +   years of professional experience in software engineering, application security, or a closely related role  

• Bachelor's degree in Computer Science , Information Security, or a related   field  

• Hands-on software development experience, including building, testing, and deploying production services and comfort reading and   modifying   existing codebases  

• Experience building and running Docker/OCI containers, with an understanding of container images, layers, and runtime behavior  

• Familiarity with Kubernetes, including deploying or supporting applications and working with core primitives (pods, deployments, services, ingress) and basic security concepts (RBAC, namespaces, service accounts)  

• Working knowledge of common web and API vulnerabilities (authentication/authorization issues, injection, SSRF, etc.) and secure coding practices  

• Proficiency   in at least one backend programming language (e.g., Go, Java, C#, Python, Node.js) and experience with modern CI/CD workflows and Git-based development  

• Exposure to application security tooling such as SAST, dependency or container image scanning, or secret scanning tools  

• Bachelor's degree preferred  

Benefits and Perks  

We   value   the   total   wellbeing   of   our   people   –   including   health,   financial,   personal   and   social   wellness.   We   believe   standard benefits like health insurance and fair pay are   a given   at any organization. Still, you should   know   we offer:  

• Fair   and   competitive   salary   and   incentive   compensation   packages   with   an   upside   for   overachievement  

• Generous   paid   time   off,   including   vacation,   personal   days,   sick   days   and   annual   community   service   days  

• 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   bac

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