> Markdown version of [/jobs/ext/3368426-qml-java-frontend-software-engineer](https://www.wearedevelopers.com/jobs/ext/3368426-qml-java-frontend-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # QML/Java Frontend Software Engineer - **Company:** Interactive Brokers - **Location:** Greenwich, CT, United States (Remote available) - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Java (Programming Language), JavaScript (Programming Language), Software Design Patterns, Memory Management, Interaction Design, Java Native Interface, Object-Oriented Software Development, Qt Modeling Language (QML), Qt (Software), Ui Patterns, Software Engineering, Backend, Material UI, Information Technology, Real Time Data, Front End Software Development - **Published:** September 14, 2026 - **Apply:** https://www.dice.com/job-detail/a3ed5bd3-d9f0-4f32-ab53-810407f9a3f9 ## About the Role Bachelor's degree or foreign equivalent in Computer Science or related field, and five (5) years of experience in a Software Development/Engineer position using QML and Javascript for front-end development. Also requires: 3 years of professional working experience with each of the following: 1) Developing responsive desktop QT applications using QML. 2) Using Java/Jambi for the backend of a QML application. 3) Developing reusable UI component libraries in QML. 4) Java development including object-oriented programming and design patterns. 5) Developing financial trading applications. ## Description Architect and implement interactive UI using JavaScript and QML to handle complex user interactions and real-time data visualization. Develop efficient data models in Java to support front-end features using object-oriented design skills. Resolve complex issues related to object life-cycles, memory management, and JNI optimization using Jambi and QT framework. Implement highly reusable, maintainable UI components and libraries in QML and JavaScript. Create test plans for UI and data model functionality. Collaborate with architects and other developers on projects to deliver scalable, maintainable software solutions for company's trading platform.