Principal Security Engineer

Job Description: Building trusted markets — powered by our people

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.

To support strong partnership and team connection, this role follows a four day in office work model.

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.

The Principal Information Security Engineer is a senior member of Cboe’s Security Engineering team, responsible for defining and driving the enterprise-wide security architecture, strategy, and long-term technical direction across a broad portfolio of security technologies. This includes Security Incident and Event Management (SIEM), Security Orchestration, Automation and Response (SOAR) and case management, Endpoint Detection and Response (EDR), secure email gateways, and data loss prevention (DLP) solutions across endpoint and email environments.

This role is not limited to a single tool or domain. Instead, the Principal Engineer owns multiple platforms and end-to-end security capabilities, establishing reference architectures, engineering standards, and scalable design patterns that guide engineering teams across the organization.

As a recognized technical authority, this individual operates with a high degree of autonomy, setting strategic direction rather than executing on predefined plans. The role is critical in addressing complex, ambiguous, and cross-functional security challenges, with decisions that directly influence Cboe’s overall security posture and risk profile.

The ideal candidate brings deep expertise across the full IT landscape, including security, infrastructure, networking, endpoints, servers, and emerging technologies—and leverages that knowledge to lead the design, development and deployment of durable, scalable, and secure solutions aligned to evolving business and threat environments.

Your responsibilities will be:

• Serve as a recognized technical authority across IT, Security, and Leadership, translating complex technical risk into clear business and regulatory context for executives, security leaders, and stakeholders including legal and regulatory teams.
• Design, implement, and govern comprehensive security solutions across multiple platforms utilizing a variety of security tools, programming languages, and services, operating with near-complete autonomy.
• Design automation and engineering patterns that enhance the efficiency, scalability, and durability of security operations enterprise-wide.
• Define how diverse technologies are normalized and integrated end-to-end to streamline analysis and response capabilities across environments.
• Mentor Senior and junior engineers as a technical role model, and document the standards and engineering patterns governing complex security products and services.
• Identify systemic risk across the organization’s security posture and design enterprise-wide mitigations and remediation strategies.
• Introduce new methodologies, reference architectures, and operating models to resolve systemic security challenges and advance the security program.
• Lead enterprise technology evaluations and adoption decisions, assessing the relevance and long-term impact of emerging technologies on our security posture.
• Define, own, and enforce engineering standards, continuously assessing the effectiveness of security controls and driving improvements across the enterprise.
• Shape and drive the security engineering strategy and roadmap, influencing senior engineers, and leaders across organizations.
• Partner with and influence cross-functional teams to embed security into the development lifecycle and operational processes.
• Lead security assessments and audits, ensuring compliance with internal policies and external regulations.
• Lead the technical response for the highest-severity incidents, directing containment, investigation, and recovery efforts.
• Stay at the forefront of industry trends, security standards, and best practices, ensuring Cboe’s systems remain resilient against evolving threats.

The ideal candidate has

• Proven principal-level experience (minimum 10 years) in information security, with recognized, authoritative depth across multiple security domains and a strong focus on architecture, engineering, and operations.
• Experience and knowledge on current security technologies (Databahn, Google Secops, Bindplane, ProofPoint, Microsoft Security) Proficiency in scripting and automation for security operations.
• Experience with Linux/Unix and Windows administration, including Active Directory (AD) and EntraID.
• Proficiency with the Microsoft Security Stack (Defender for Endpoint, Defender for Identity, Defender for CloudApps, Purview DLP, Intune)

• Bachelor's Degree in Cybersecurity or Computer Science
• System Administration experience in Linux and Windows
• Proven ability to script and automate tasks
• Specific experience with Google Secops SIEM, the Microsoft Security Stack, or ProofPoint Email Security Services
• CISSP, CASP or other related security certifications

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 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

Some of our associates’ favorite benefits and perks include:

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 Paid Time Off

We’re reimagining the future of the workplace by focusing on what matters most, our people. Our journey is an inclusive one. We’re investing deeply in leadership programs and career development initiatives that ensure everyone has an equal chance to succeed.

We work with purpose, solving problems with ingenuity, collaboration, and a lot of passion. We’re an engaged and excited team connecting markets across borders and embracing growth in all its forms to achieve incredible outcomes.

Learn more about life at Cboe on [ our website ]( and [ LinkedIn ](

We're proud to be an equal opportunity employer do not discriminate against any employee or applicant for employment based on any legally protected characteristic, including race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, genetic information, or Veteran status. We are committed to fostering a workplace where all individuals are valued and respected.

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At Cboe, we are committed to providing a competitive, transparent, and market‑informed total rewards program. The anticipated base salary range for this role is $148,750-$192,500, with actual compensation determined by job‑related factors such as skills, relevant experience, education, internal alignment, and location.

This role may also be eligible for annual incentive compensation and, where applicable, participation in Cboe's long-term equity programs.

Additional information about Cboe's total rewards program, including benefits and other compensation components, can be found here: [Total Rewards at CBOE](