Principal Back-end Software Engineer - Portfolio Risk Analytics C#​/.NET

Principal Back‑End Software Engineer – Real‑Time Portfolio Risk Analytics (C#/.NET)

Company: Cboe Global Markets

Location: Flex/Hybrid – Chicago office

Cboe Data Vantage is seeking a highly skilled Principal Software Engineer to lead the re‑architecture and modernization of our real‑time Portfolio Risk Analytics system. This critical role requires expertise in C#/.NET back‑end development and deep knowledge of the equity and index options industry. As the system processes real‑time market data, reference data and positions updates to generate risk metrics and projected scenarios, you will build robust back‑end systems that power modern web‑based applications (though you will not write web code directly).

• Lead the re‑architecture and modernization of the real‑time Portfolio Risk Analytics system to improve scalability, maintainability and performance.
• Design and implement high‑performance real‑time back‑end systems in C#.
• Optimize and support the existing system during transition, including performance tuning and troubleshooting.
• Independently research and resolve complex technical problems.
• Collaborate with front‑end teams to ensure back‑end systems effectively power web‑based applications.
• Develop containerized applications and deploy them in Kubernetes environments for scalability and reliability.
• Provide technical leadership and mentorship to the engineering team, fostering best practices in software design, development and testing.
• Ensure the system meets enterprise‑grade standards for reliability, security and operational support.
• Work closely with stakeholders to understand business requirements and translate them into technical solutions.
• Stay current with industry trends and emerging technologies to drive innovation and continuous improvement.

• 10+ years of experience in C#/.NET server‑side development, with a focus on real‑time, stateful applications.
• Strong experience in the equity and index options industry or other relevant derivatives market.
• Proven expertise in re‑architecting complex systems to improve scalability, performance and maintainability.
• Experience with real‑time data processing and cross‑process/network communications.
• Strong skills in performance tuning, troubleshooting and operational support of enterprise systems.
• Demonstrated ability to provide technical leadership and mentor team members.
• Excellent problem‑solving skills and the ability to work collaboratively in a fast‑paced environment.
• Strong communication skills and the ability to work effectively with cross‑functional teams.

• Familiarity with financial risk analytics and portfolio management systems.
• Hands‑on experience developing containerized applications and hosting them in Kubernetes or similar orchestrated environments.
• Experience with telemetry and operational support tooling for monitoring and debugging real‑time systems.
• Familiarity with Windows desktop applications and transitioning systems to power web‑based applications.

• Fair and competitive salary and incentive compensation packages.
• 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.

We’re reimagining the future of the workplace by focusing on what matters most – our people. Our journey is inclusive, investing in leadership programs and career development initiatives, celebrating diversity, and welcoming new perspectives with equity, inclusion and belonging. Learn more about life at Cboe on our website and Linked In.

We're proud to be an equal opportunity employer and celebrate our associates' differences, including race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability and veteran status.