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Senior Java Developer - Client Portal

Interactive Brokers

Salary not specified
Dec 15, 2025
Greenwich, CT, US
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Interactive Brokers Group, Inc. is looking to design, develop, and maintain its Web API platform to provide third parties, clients, and IBKR's client-facing applications with access to highly critical, real-time services required for day-to-day operations.

Requirements

  • 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.
  • Experience with WebSockets and real-time communication in a Java-based environment
  • Familiarity with cloud technologies (e.g., AWS) is a plus.
  • Previous experience with agile development methodologies is a plus.

Responsibilities

  • 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.

Other

  • Bachelor's or Master's degree in Computer Science or a related field.
  • 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.