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About the Role

Cboe’s Data Vantage division is seeking a Principal Software Engineer to build across the entire stack, owning integration and end-to-end testing for their platforms. This hands-on role requires expertise in modern ReactJS front-end development, C#/.NET back-end services, and navigating WPF desktop clients. You will design and implement real-time web and desktop applications, scalable back-end systems for financial analytics, execution, and risk-management, and define validation strategies across products. Proficiency with AI coding assistants like Claude is expected for accelerating delivery, generating test suites, reviewing code, and improving team quality.

Responsibilities

Serve as the subject-matter expert for integration and end-to-end testing, defining and refining validation workflows across front-end, APIs, and back-end services for Silexx, LiveVol, and DataShop.
Lead the design, architecture, and implementation of modern full-stack applications using ReactJS front-ends and C#/.NET back-end services.
Build and maintain automated integration, contract, and end-to-end test suites exercising REST, gRPC, and real-time streaming interfaces across products, integrating them into CI/CD pipelines as release gates.
Leverage AI coding assistants like Claude across the SDLC for test generation, code review, refactoring, and agentic automation, establishing team practices and guardrails for AI-augmented development.
Collaborate with product management and cross-functional teams to understand requirements and deliver integrated, high-quality solutions.
Implement secure server communications and authentication/authorization using RESTful and streaming protocols, OpenID Connect, and OAuth 2.0.
Drive technical decisions, provide architectural direction for growth into new asset classes and products, and mentor engineers across teams.
Diagnose and resolve complex, cross-product technical problems spanning UI, API, and back-end layers.

Requirements

Bachelor’s degree in Computer Science, Software Engineering, or a related STEM field.
10+ years of hands-on experience in professional full-stack development, including modern web technologies and back-end services.
Demonstrated experience designing and leading integration and end-to-end test strategy for complex, multi-component systems.
Strong OOP skills, experience with design patterns, and a solid grounding in computer science fundamentals.
Experience mentoring engineers and providing technical leadership across teams.
Hands-on experience using AI coding assistants (e.g., Claude) in a professional development workflow.
Candidates must be legally authorized to work in the United States without the need for employer sponsorship now or in the future.

Skills

ReactJS
React Hooks
MobX
Redux
Component-based architecture
HTML5
CSS3
JavaScript (ES6+)
TypeScript
C#/.NET
ASP.NET
Webpack
Babel
NPM
RESTful APIs
gRPC
WebSockets
Real-time communication methods
Throughput optimization techniques
Serialization (MessagePack, Protobuf)
Compression methods
Microservices architecture
WPF desktop clients
Data structures
Algorithms
Profiling
Performance optimization
Integration testing
Contract testing
End-to-end test automation
Playwright
Cypress
xUnit
NUnit
API testing
Contract testing tools
CI/CD pipelines
AI coding assistants (Claude)
Code generation
Test creation
Code review
Refactoring
Agentic tooling
SDLC integration
OpenID Connect
OAuth 2.0
Security code scanning
MySQL
Postgres
SQL Server
Entity Framework
Agile/Scrum methodologies
DevOps practices
Windows
Linux
Communication skills
Problem-solving skills
Leadership skills
Financial industry systems
Real-time trading
Order routing workflows
Market data distribution
Electron
Tauri
OpenFin
Native desktop / OS-level APIs
GraphQL
Docker
Kubernetes
Azure
AWS
GCP
PowerShell
Git
Jenkins
Jira
Confluence
Wireshark

Location

Chicago

Work Type

Four day in office work model
Hybrid

Experience Level

Principal
10+ years of hands-on experience in professional full-stack development

Education Level

Bachelor’s degree in Computer Science, Software Engineering, or a related STEM field

Salary/Compensations

$182,325-$235,950

Benefits

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
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

About the Company

Cboe Global Markets provides the financial infrastructure that powers the global economy, offering market infrastructure and tradable products, including trading, clearing, and investment solutions.
The company fosters professional and personal development, encouraging internal mobility and providing opportunities for employees to share ideas and take on challenges.
Cboe aims to create a safe space for employees to network, share ideas, and create opportunities.
The company is reimagining the future of the workplace by focusing on its people, investing in leadership programs and career development initiatives to ensure equal opportunity.
Cboe works with purpose, solving problems through ingenuity, collaboration, and passion, connecting markets across borders and embracing growth.

Equal Opportunity

Cboe Global Markets is an equal opportunity employer and does 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 veteran status.
The company is committed to fostering a workplace where all individuals are valued and respected.