Senior Backend Java Developer

As a Senior Backend Java Developer at Interactive Brokers, you will design and build solutions for our infrastructure, regulatory reporting, and back-office systems. This could include enhancements to existing systems or developing completely new systems. You will also create GUIs and APIs for internal clients and provide support for these systems once released into production.

To qualify for the Senior Backend Java Developer position at Interactive Brokers, you should possess a Bachelor's or Master's degree in Computer Science or a related field. Additionally, you must have 7+ years of commercial software development experience in the Java programming language and a solid understanding of databases, ideally Oracle.

A Senior Backend Java Developer at Interactive Brokers should be familiar with Hibernate & JPA ORM technologies, Java-based REST frameworks like Spring Boot and Vert.x, as well as Queueing technologies such as Kafka/MQ/JMS. Experience with Linux and application servers like JBoss would also be beneficial.

The work environment for a Senior Backend Java Developer at Interactive Brokers is hybrid, allowing for flexibility between in-office and remote work. You will collaborate with a dynamic and driven team, emphasizing innovation and continuous improvement in our technology solutions.

Working at Interactive Brokers offers a competitive salary, annual performance-based bonuses, stock grants, and excellent health and wellness benefits. You will also benefit from a robust retirement plan, generous paid time off, education reimbursement, and regular company events promoting team bonding.

Share specific projects where you utilized Java, highlighting the frameworks or technologies used, and your role in developing scalable applications. Emphasize your understanding of object-oriented principles and how you apply them to solve complex problems.

Discuss the design patterns you're familiar with, like Singleton, Factory or Observer, and provide examples of how implementing these patterns improved your application's architecture or performance.

Explain your approach to identifying performance issues through profiling tools, analysis of code and data structures, and how you've optimized applications in past experiences.

Discuss your experience with testing frameworks like JUnit or TestNG, and provide details about how you ensure code quality and maintainability through comprehensive unit testing.

Highlight a project where collaboration was key. Describe your role in team discussions, code reviews, or working with cross-functional teams, and the outcomes of those collaborations.

Provide details about APIs you've created or consumed. Discuss your understanding of REST principles, best practices for designing an API, and any frameworks you've utilized.

Share examples of how you've interacted with Oracle databases in previous roles, including writing complex queries, performance optimization, and managing database schemas.

Discuss your experience with Git or other version control systems. Explain how you manage branches, handle merges, and ensure smooth collaboration in your development process.

Explain your strategy for learning, such as setting project goals, utilizing online courses, reading documentation, or reaching out to peers, and any practical experiences you've had applying new technologies.

Discuss qualities such as analytical and problem-solving skills, adaptability in a fast-paced environment, excellent communication, and the ability to work independently or as part of a team, all of which contribute to success in this role.