Senior Engineer - Threat Hunting

Job Description: Building trusted markets —powered by our people.
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’re building inclusive 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. Our Associate Resource Groups champion diversity, equity and inclusion, giving associates a safe space to network, share ideas and create opportunities.
PLEASE NOTE: To support strong partnership and team connection, this role follows a four day in office work model.

Location Overview

Cboe HQ

• is
• located in
• the historic Old Post Office
• district,
• i t’ 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
The Senior Engineer Threat Hunting will be a senior individual contributor within Cboe’s Security Operations organization, responsible for defining, advancing, and executing the enterprise approach to detection engineering, threat hunting, and adversary emulation. This role focuses on building and maturing detection capabilities across platforms such as SIEM, EDR, identity, cloud, and SaaS environments, ensuring detections are resilient, scalable, and aligned to real‑world adversary behavior. The Senior Engineer Threat Hunting will lead complex, hypothesis‑driven threat hunts, partner closely with stakeholders to design and execute adversary emulation scenarios, and translate findings into durable detections, improved telemetry, and architectural enhancements. This individual will also serve as a technical lead during the most complex or high‑severity security incidents, shaping investigative approach and long‑term defensive improvements.
In this role you’ll be responsible for
:
Owning the enterprise detection engineering capability end‑to‑end, including standards, patterns, quality bars, and long‑term technical direction
Designing, implementing, and reviewing high‑fidelity detections across endpoint, identity, cloud, network, and SaaS environments
Leading complex, hypothesis‑driven threat hunts that address ambiguous, cross‑organizational risk and novel attacker behavior
Translating threat hunting outcomes into robust detections, improved telemetry, or architectural changes rather than one‑off findings
Partnering with internal stakeholders to design and execute adversary emulation scenarios that validate real‑world detection and response effectiveness
Identifying systemic detection and response gaps and driving remediation across engineering, operations, and architecture teams
Acting as the technical lead during highest‑severity incidents, guiding investigative approach and defensive improvements
Influencing security strategy, roadmaps, and investment decisions by translating technical findings into business and risk context
Provide expert recommendations and best practices to security managers, technical managers, and stakeholders including legal and regulatory teams.
Mentoring senior engineers and analysts and setting the technical bar for excellence across detection, hunting, and adversary emulation
Stay current with industry trends, security standards, and best practices to ensure our systems remain secure against evolving threats.
The ideal candidate has
:
5-8+ years of experience in cybersecurity operations, detection engineering, threat hunting, or offensive security
Deep expertise in attacker tradecraft, adversary behaviors, and defensive detection techniques across multiple domains
Strong hands‑on experience with SIEM, EDR, cloud security platforms, and large‑scale log analytics (Google SecOps, Defender XDR, Crowdstrike)
A proven ability to solve ambiguous, systemic, cross‑organizational security problems with minimal direction
Experience balancing hands‑on execution with strategic influence, knowing when to build directly and when to enable others
The ability to operate with near‑complete autonomy, setting technical direction rather than receiving it
Strong communication skills, including the ability to explain complex technical risk to senior security and technology leaders
Bachelor’s degree or equivalent practical experience
Proficiency in scripting and automation for security operations.
You’ll really stand out with
:
Bachelor's Degree in Cybersecurity or Computer Science
System Administration experience in Windows or Linux
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
#LI-CP2
Benefits and Perks

of working for Cboe Global Markets

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 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

More About Cboe

Global Markets

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

.

Equal Employment Opportunity

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
• v eteran status. We are committed to fostering a workplace where all individuals are valued and respected.
• This position is not eligible for visa sponsorship. Candi