Sr Software Developer

Job ID: 58Req ID: 88Location: Greenwich, CT, USAPay: USD 180000 - 220000Posted: 2026-04-23Company Overview 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. Software Development - Brokerage This Software Development group engineers the core brokerage and risk technology at the heart of the Interactive Brokers platform. Spanning Enterprise Architecture, Market Risk, UI Brokerage, Client Integration, Client Accounts, Equity Distribution, and multiple specialized brokerage development teams, the group builds the systems that execute trades, manage risk, and serve clients worldwide. Members tackle complex engineering challenges at massive scale, shaping the tools that define modern electronic trading. It's a dream environment for developers who want to build sophisticated financial technology. This is a hybrid role (3 days in the office/2 days remote).About the role: Join our UI Brokerage team, the group behind IBKR's Web API platform - a mission-critical system that powers real-time, high-availability services for third parties, clients, and IBKR's own client-facing applications. Our platform is at the core of day-to-day trading and brokerage operations, making reliability, performance, and security top priorities in everything we build. What will be your responsibilities within IBKR: You will work with business and internal teams, adding new features and interfaces as required. You will write documentation units and regression tests for new interfaces. You will write backend services and/or clients that will help expose internal services. You will provide third-level support. Which skills are required: Bachelor's or Master's degree in Computer Science or a related field. Proven experience as a Java Developer with expertise in Java, Spring, Vert.x Proficiency in using Git version control for code management and collaboration. Strong command of RESTful web services and experience in designing and implementing them. Experience with JUnit or other testing frameworks for writing unit and integration tests. Solid understanding of software development principles and best practices. Experience with WebSockets and real-time communication in a Java-based environment Strong problem-solving skills and the ability to work independently and within a team. Excellent communication skills and a collaborative mindset. Continuous learning and staying up-to-date with the industry Familiarity with cloud technologies (e.g., AWS) is a plus. Previous experience with agile development methodologies is a plus. To be successful in this position, you will have the following: Self-motivated and able to handle tasks with minimal supervision. Superb analytical and problem-solving skills. Excellent collaboration and communication (Verbal and written) skills. Outstanding organizational and time management skills. Company Benefits & Perks Competitive salary, annual performance-based bonus, and stock grant awards 401(k) retirement plan with competitive company match Excellent health and wellness benefits, including medical, dental, and vision benefits. 100% employer-paid medical premiums, with generous employer contributions to dental & vision plans as well. Wellness screening and assessments, health coaches, and counseling services through an Employee Assistance Program (EAP) Generous paid parental leave (up to 16 weeks paid parental leave for eligible employees) Company-paid basic life insurance, accidental death & dismemberment (AD&D), and short- and long-term disability coverage Flexible Spending Accounts (Healthcare, Dependent Care, and Commuter FSAs) Quarterly fitness stipend to offset costs associated with traditional gym and fitness memberships or fees Education reimbursement and professional development opportunities Legal services, telehealth access, and voluntary insurance options Backup child and adult care support through Care.com Daily lunch allowance and fully stocked kitchen with healthy breakfast and snack options