Senior Java Engineer

A Senior Java Engineer at Apexon is responsible for developing and maintaining high-quality software solutions using core Java technologies. You'll work with RESTful APIs, handle complex database queries, and participate in various stages of the software development lifecycle. The role requires strong coding skills and the ability to collaborate effectively within a team.

To qualify for the Senior Java Engineer position at Apexon, candidates should possess a bachelor’s degree in computer science or a related discipline, along with solid experience in core Java (JDK 8 and above). Familiarity with RESTful web services, RDBMS, and strong communication skills are also essential.

Candidates should have a firm grasp of core Java, be comfortable with RESTful web services, and have experience with RDBMS, particularly DB2. Knowledge of big data technologies, UI frameworks like AngularJS or React, and familiarity with UNIX environments can be advantageous.

The work culture at Apexon is collaborative and inclusive. We encourage innovation, continuous learning, and diversity, which allows our Senior Java Engineers to thrive and contribute meaningfully to projects while also pursuing their professional development.

While knowledge of financial markets can be beneficial for a Senior Java Engineer role at Apexon, it is not a strict requirement. We welcome candidates with a varied background and encourage them to apply regardless of their previous industry experience.

As a Senior Java Engineer at Apexon, you'll enjoy a comprehensive benefits package that includes a performance-based bonus, 25 days of holiday, enhanced parental leave, health and wellness programs, an employer pension scheme, and opportunities for continuous learning through platforms like Udemy.

Absolutely! At Apexon, we value potential over perfection. Even if you don't meet every single requirement mentioned for the Senior Java Engineer position, we encourage you to apply if you feel you have the necessary skills and a passion for technology.

When answering this question, focus on the four main principles: encapsulation, inheritance, polymorphism, and abstraction. Give examples from your own experience where possible to illustrate your understanding.

Explain that JDK (Java Development Kit) includes tools for developing Java applications, JRE (Java Runtime Environment) is needed to run Java applications, and JVM (Java Virtual Machine) executes Java bytecode. Highlight their interconnections to show a comprehensive understanding.

Discuss the try-catch-finally blocks and the importance of using custom exceptions for better error handling. Provide an example from your past experiences where you successfully managed exceptions in a project.

Talk about the key principles of REST, such as statelessness, resource-based interactions, and using standard HTTP methods. Stress your experience in designing services that adhere to these principles.

List and briefly describe the core collections in Java, such as List, Set, Map, and Queue, highlighting the use cases of each. Provide examples from your projects where you've leveraged these collections effectively.

Explain your appreciation for Java's cross-platform capabilities, strong community support, and extensive libraries and frameworks. Share personal experiences that motivated you to choose Java over other languages.

Discuss best practices like code reviews, unit testing, continuous integration, and the use of static code analysis tools. Provide examples of how these practices improved code quality in your previous work.

Elaborate on how Java supports multithreading, the difference between threads and processes, and the benefits of executing multiple threads simultaneously. Share experiences that showcase your work with multithreading.

Define dependency injection as a design pattern used to create loosely coupled systems. Highlight any frameworks you have used, such as Spring, and give examples of how it improved the scalability of applications.

Describe your systematic method for debugging applications, including using logging frameworks for monitoring and diagnosing issues, and employing debuggers to step through code. Share a specific example where your debugging process resolved a challenging issue.