Principal Software Engineer – Data and Billing QA (Fintech)

TL;DR

Principal Software Engineer (Fintech): Leading QA activities for a high-revenue billing platform with an accent on streaming data testing, agentic coding workflows, and AI-driven tools. Focus on automating bug triage via AI agents, validating complex C++ logic, and building a next-gen streaming test stack.

Location: Must be based in the US (Chicago, IL; Overland Park, KS; Kansas City, MO; or New York, NY). This position is not eligible for visa sponsorship.

Salary: $110,500–$143,000

Company

Leading provider of market infrastructure and tradable products that provides the financial infrastructure powering the global economy.

What you will do

• Build AI agents and MCPs into test harnesses to automate bug triage and generate agentic tests.
• Validate customer billing program logic in C++ against massive trading system output files.
• Develop and stand up testing for a next-gen streaming stack utilizing Java and Avro.
• Automate real-time data testing via CI/CD pipelines using Jenkins.
• Utilize the billing platform for forward-looking revenue forecasting and strategy modeling.
• Expand billing and invoice testing coverage across additional Cboe products and services.

Requirements

• Strong programming proficiency in Python, Java, and C++.
• Hands-on experience with Kafka, Avro, Kudu, and Snowflake.
• Practical experience with agentic AI frameworks like LangChain, AutoGen, or tools such as Claude Code and OpenAI Codex.
• Solid Linux skills for the deployment of AI infrastructure.
• Working SQL proficiency and experience with databases like PostgreSQL, MySQL, or Oracle.
• Must be legally authorized to work in the United States without employer sponsorship now or in the future.

Nice to have

• Experience in financial markets with knowledge of order entry or market data protocols.
• Proven track record of transitioning build practices from reactive to proactive.

Culture & Benefits

• Competitive salary and incentive compensation with overachievement upside.
• 2:1 401(k) match up to 8% effective immediately upon hire.
• Comprehensive health, dental, and vision coverage, including mental health services.
• Generous paid time off, including vacation, personal, sick, and community service days.
• On-site perks including complimentary lunch, snacks, coffee, and gym access.
• Paid tuition assistance, parental leave, and fertility benefits.