Principal Software Engineer – Data and Billing QA
About The Position
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. We're looking for an engineer who thinks in systems, leads with vision, and sees AI as a force multiplier for everything we do. As a Principal Software Engineer for Data and Billing, you will help lead QA activities for our billing platform, where we shadow and validate over $1B in annual revenue. You'll work on streaming data testing, agentic coding workflows, and AI-driven tools that turn our billing data into revenue forecasting and strategy insights for the business. We cover billing for one of the world's largest exchange operators, and we're scaling fast. The goal is full coverage across all billing programs, plus support for new business initiatives, monthly strategy shifts, and ongoing consulting with our development teams, Operations, Finance, Accounting, and the broader business teams. We also want to put our billing data to work. With agentic tooling and AI on top of our shadow billing platform, we can model future revenue, forecast demand, and give the business real-time input on pricing and program strategy.
Requirements
- 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
Nice To Haves
- 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
Responsibilities
- 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
Benefits
- 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
- 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
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What This Job Offers
Job Type
Full-time
Career Level
Principal
