Principal Full-Stack Software Engineer C#/.NET (Flex Hybrid)

Job Description

Position Title : Principal Full-Stack Software Engineer C# / .NET

Department : Systems Development

Division : Cboe Data and Access Solutions

Location : Flex / Hybrid near a Cboe office (Lenexa, Chicago or NYC)

Position Summary :

Cboe Data and Access Solutions division is looking for a highly skilled and experienced Principal Software Engineer to join our team. This role is perfect for a seasoned engineer who is an expert in .NET / C# server-side development with some exposure to front-end technologies like ReactJS. You will be responsible for designing and implementing scalable back-end systems that power high-performance React-based front-end applications, particularly in financial analytics, execution, and risk management platforms. The ideal candidate has extensive experience in developing and engineering complex and performant server-side applications with expertise in real-time data processing, web streaming technologies, RESTful APIs, and securing applications and communications to deliver enterprise grade software solutions.

Key Responsibilities :

• Lead the design, architecture, and implementation of scalable server-side applications using C# / .NET.
• Collaborate with front-end teams (using ReactJS) to ensure smooth and performant integration between the back-end and UI.
• Work closely with cross-functional teams, including product management, to understand requirements and deliver high-quality, well-architected solutions.
• Implement server communications leveraging secure APIs using streaming and RESTful transport protocols.
• Implement secure authentication and authorization mechanisms using OpenID Connect and OAuth.
• Ensure code quality through best practices, including unit testing, integration testing, and code reviews.
• Drive technical decisions and provide mentorship to other developers on the team.
• Independently research and resolve complex technical problems.
• Optimize application performance through analysis and tuning.
• Implement security code scanning and update software code to resolve security issues.
• Manage technical debt and help evolve the architecture to support future business needs.
• Self-manage assigned projects to ensure successful completion in designated time frames.
• Stay up to date with emerging technologies and frameworks, continuously improving and innovating our stack.

Qualifications :

Skills & Requirements :

Advanced expertise in C# / .NET and ASP.NET for building scalable, high-performance back-end services.

Expertise in implementing authentication and authorization using OpenID Connect, OAuth 2.0, and related security standards.

Familiarity with Agile / Scrum methodologies and DevOps practices (CI / CD pipelines, automated testing, etc.).

Experience with financial industry systems.

We offer :

Check all associated application documentation thoroughly before clicking on the apply button at the bottom of this description.

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Remote working / work at home options are available for this role.