Principal Software Engineer – Data and Billing QA

What You'll Do 

• Build agents and MCPs into our test harnesses to automate bug triage and generate agentic tests, so our coverage scales without scaling headcount 

• Take on customer billing program testing, validating C++ logic against massive files output from the trading system 

• Close the gap on our remaining untested revenue (ports, access fees, liquidity provider programs) 

• Stand up testing for our next-gen streaming stack (Java, Avro) 

• Support our existing data streaming test suites, which have saved millions of dollars in losses and reputational damage 

• Use our billing platform for forward-looking revenue forecasting and strategy modeling 

• Automate real-time data testing via CI/CD (Jenkins) 

• Eventually expand into billing/invoice testing for other Cboe products and services 

If you like owning big problems, working with smart people, and watching your tests catch real money before it walks out the door, this opportunity is for you! 

What You Bring: 

Vision and Leadership 

• A strategic, forward-thinking mindset — you don't just solve today's problems, you design systems that scale 

• Strong analytical skills and an exacting attention to detail 

• The ability to build consensus, communicate clearly, and lead change across cross-functional teams 

AI and Automation (Critical Differentiator) 

• Practical experience with tools such as Claude Code, OpenAI Codex, or similar 

• Familiarity with agentic AI frameworks — LangChain, AutoGen, or equivalents 

• A builder's instinct: you see where AI can remove friction and you act on it 

Core Engineering Skills 

• Strong Python, Java, and C++ programming chops 

• Solid Linux skills (you'll help deploy our AI infrastructure) 

• Hands-on experience with Kafka, Avro, Kudu, Snowflake 

• Data analytics, systems design 

Supporting Technical Skills 

• Databases: PostgreSQL (preferred), MySQL or Oracle; working SQL proficiency required 

• Atlassian toolset (Jira, Confluence)  

• Experience with Git-based version control 

• CI/CD tooling experience, including Jenkins 

• Bachelor's degree in computer science, engineering, or a related field — or equivalent experience 

You'll Really Stand Out With 

• Experience in financial markets with working knowledge of order entry or market data protocols 

• A track record of taking a build practice from reactive to proactive and making it stick 

What We Offer 

We value the total wellbeing of our people. Our benefits include: 

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

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

• Health, dental and vision coverage, including telemedicine and mental health services 

• 2:1 401(k) match up to 8%, effective immediately upon hire 

• Discounted Employee Stock Purchase Plan 

• Tax savings accounts for health, dependent care and transportation 

• Employee referral bonus program 

And some of our people's favorites: 

• Complimentary lunch, snacks and coffee in every Cboe office 

• Paid tuition assistance and education opportunities 

• Generous charitable giving company match 

• Paid parental leave and fertility benefits 

• On-site gyms and fitness center discounts 

More About Cboe 

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 celebrate the diversity in our communities, inside and out, and welcome new perspectives with equity, inclusion and belonging. 

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.