C++ Software Engineer-Market Risk

About the Company Interactive Brokers Group, Inc. (NASDAQ: IBKR), a member of the S&P 500, is a global financial services company headquartered in Greenwich, Connecticut, with offices in over 15 countries. Through its affiliates, Interactive Brokers provides automated trade execution and custody of securities, commodities, foreign exchange, and prediction markets on over 170 markets in numerous countries and currencies.

For more than four decades, Interactive Brokers has focused on technology, automation, and innovation to provide clients worldwide with a sophisticated, unified platform to manage their investment portfolios. We serve individual investors, hedge funds, proprietary trading groups, financial advisors, and introducing brokers.

Our culture is driven by problem-solving, efficiency, and continuous improvement. We look for individuals who are intellectually curious, collaborative, and motivated to contribute to technology that helps simplify and enhance access to global financial markets. Interactive Brokers has consistently been recognized as a top broker by respected industry sources including Barron’s, Investopedia, Stockbrokers.

com, and others.

About the team

We are a small, collaborative software development team supporting risk management in a brokerage system. The role’s primary responsibility will be maintaining and improving the backend program which is monitoring the clients’ financial state, ensures to fulfill regulatory requirements and checks if they can afford their new orders.

Our application is written in C++ and run on Linux. What you’ll do Develop and maintain the C++ the application and the related scripts/steps around it. Work primarily in a Linux environment using GCC and common command-line development tools. Investigate issues in existing software, identify root causes, and implement reliable fixes.

Use AI-assisted development tools, such as Claude and Codex, responsibly to support design, implementation, testing, debugging, and code review. Write and maintain automatic test cases. What we’re looking for Required Good programming ability in C++ Understanding of object-oriented programming, common data structures, algorithms, and the C++ Standard Library.

Ability to read, understand, debug, and improve an existing C++ codebase. Strong logical and analytical problem-solving skills. Care and attention to detail, particularly when working on systems that support trading activity. The aim writing clear, maintainable, and well-tested code. Familiarity with Linux or a strong willingness to work in a Linux-based development environment.

Be eager to understand where your task stays in the big picture, not just code it. This is the way to develop, to learn the business logic and to have good understanding and overview of our component. Ability to work independently in long term while knowing when to involve others or to raise questions. Willingness to take ownership of tasks and follow them through to completion.

A degree in Computer Science, Mathematics, Physics, Engineering, or a related field—or equivalent practical experience.

Nice to have

Experience with financial systems, trading systems or other data-intensive backend systems