Senior Quantitative Developer — Trading Systems & Analytics

PortalPlayer, Inc.; Chicago (IL); On-site; USD 200,000 - 275,000; Full time

Benefits offered by this job

401(k) with employer matching

Paid holidays

Generous vacation

Parental leave

Flexible spending accounts (FSA)

Job summary

Group One Trading seeks a Senior Quantitative Developer to join its options market-making team in Chicago or New York. You will design, implement, and optimize pricing, risk, and execution systems, collaborating closely with traders and quantitative researchers to deliver robust, high-performance solutions.

You will own meaningful components, lead technical discussions, and mentor peers, emphasizing C++ and C# in a fast-paced, production environment.

Qualifications

• Strong quantitative and analytical skills with probability and statistics
• Knowledge of options pricing models, implied vol surfaces, risk measures
• Ability to work directly with traders and researchers
• Broad software development lifecycle experience from requirements to production
• Lead technical design discussions and mentor developers
• Strong written and verbal communication skills
• Bachelor's degree or equivalent in quantitative field

Responsibilities

• Build and improve pricing, strategy, risk, and execution systems for options market-making
• Collaborate with traders and researchers to deploy critical systems
• Lead design discussions and raise engineering standards
• Own end-to-end components and improve performance and maintainability
• Mentor other developers and contribute to tooling and processes
• Explain complex concepts clearly to non-technical stakeholders

Skills

Quantitative analysis

Options pricing

Communication with traders

Software development lifecycle

Mentoring

C++/C# programming

Education

Bachelor's degree in CS/Engineering/Math/Statistics

Tools

C++

C#

Job description

Group One Trading seeks a Senior Quantitative Developer to join its options market-making team in Chicago or New York. You will design, implement, and optimize pricing, risk, and execution systems, collaborating closely with traders and quantitative researchers to deliver robust, high-performance solutions.

You will own meaningful components, lead technical discussions, and mentor peers, emphasizing C++ and C# in a fast-paced, production environment.