Sr Software Developer - Trading Platform

Sr Software Developer - Trading Platform Job Description

Posted Thursday, July 23, 2026 at 10:00 AM

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, , and others.

This is a hybrid role (3 days in the office/2 days remote).

About your team:

The Interactive Brokers Trading team is seeking an experienced Senior Software Developer to join the group building the high-performance, scalable trading application that our clients use to trade stocks, futures, options, and other financial instruments. The platform is mature and feature-rich, and we are continuously extending it with new capabilities, improving performance, and refining the experience for a demanding global user base.

You will contribute to a Java-based product that our customers rely on in real time.

What will be your responsibilities within IBKR:

• Design, develop, and maintain features across the trading application, with a primary focus on the Java business layer.
• Integrate with backend services over REST, Web Sockets, and FIX to deliver responsive, reliable functionality to end users.
• Participate in the full software development lifecycle, including design, implementation, unit testing, code review, and ongoing maintenance of the features you deliver.
• Collaborate with business analysts, product managers, and other developers to translate requirements into high-quality software.
• Write and maintain clear technical documentation for the code and designs you produce.
• Investigate and resolve complex technical issues across the stack.
• Stay current with relevant tools, libraries, and techniques that can improve the platform.

Skills Required:

• Master's degree in Computer Science or a related field with a minimum of 3 years of professional software development experience, or a Bachelor's degree in Computer Science or a related field with a minimum of 5 years of professional software development experience.
• Strong proficiency in Java, with a deep understanding of object-oriented programming and software design patterns.
• Solid software development fundamentals, including writing clean, maintainable, well-tested code and producing clear documentation.
• Working knowledge of multithreading and concurrency, with an appreciation for lean, low-latency programming.
• Proficiency with Git for source control and collaborative development.
• Strong analytical and problem-solving skills, with the ability to troubleshoot complex technical issues across a large codebase.
• Excellent verbal and written communication skills.

To be successful in this position, you should be:

• Experience with declarative, state-driven UI frameworks (React Native, Flutter, QML, etc.); prior Qt/QML experience is a plus, but genuine interest in learning it is equally valued.
• Prior work on financial trading platforms and familiarity with instruments such as stocks, futures, and options, or a strong interest in learning the domain.
• Exposure to Linux as a development or deployment environment.
• Working familiarity with Gradle as a build automation tool.
• Awareness of AI-assisted development tools such as Claude Code and other agentic coding…