Senior Java Developer

Job  :
Greenwich, CT, USAPay: USD 180000 - 200000

Posted:  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 Hybrid role (3 days in office /2 days remote)
About your Team:
Our team builds and supports mission-critical applications that power Interactive Brokers' back office, accounting, treasury, and compliance functions globally. We're looking for a Senior Java Developer to drive the full software development lifecycle — from planning and prioritization through testing and release. With strong technical depth and the communication skills to align technical and business stakeholders. This role suits someone who is organized, deadline-driven, process-disciplined, and thrives in cross-functional collaboration.

Key Responsibilities :
Design, develop, and maintain high-performance, scalable, and resilient financial applications Optimize and refactor existing code to improve reliability and performance. Partner with other developers and stakeholders to plan, prioritize, and deliver development initiatives Validate AI-assisted or AI-refactored code with sufficient automated test coverage before submitting for review. Conduct thorough code reviews — including validation of testing results — and ensure large change sets are broken into reviewable units Collaborate across teams to implement and roll out solutions in both production and development environments.

Proactively identify and resolve technical issues before they impact downstream systems

Required Qualifications :
Bachelor's or Master's degree in Computer Science, Information Technology, or a related field. 5-10 years of experience designing and building medium-to-large scale applications using Java and/or Python/Perl on Linux platform. Strong hands-on experience with Java Spring, including both Spring Boot (micro services) and traditional Spring applications. Strong grasp of object-oriented design principles and common design patterns.

Experience with JDBC and relational databases (Oracle preferred). Hands-on experience using AI-assisted development tools (e.g., Claude, Git Hub Copilot, or similar) across the software development life cycle. Excellent collaboration and communication skills, with experience partnering across development teams on critical roll outs. Knowledge of financial instruments or a strong motivation to learn financial markets and concepts. Nice to have :

Experience with Git, Gerrit, Bitbucket, Gradle, and/or Ivy. Experience building or integrating MCP (Model Context Protocol) servers to connect AI tools with internal systems, enabling faster, AI-assisted development workflows. Experience developing web applications…