Java Backend Specialist | Conv API Services - Hybrid - Malmö

As a Java Backend Specialist at Sinch, your primary responsibilities will include designing and implementing high-performance distributed systems that process large volumes of data. You will work extensively with Java and Kotlin, as well as manage databases, queue systems, and streams. Additionally, you’ll play a crucial role in mentoring junior team members and sharing your expertise to ensure the team excels.

To qualify for the Java Backend Specialist role at Sinch, candidates should have a strong mastery of the Java programming language and a good understanding of Kotlin. Experience in designing distributed systems and working with micro-services is essential. Familiarity with frameworks like Spring and Spring Boot, as well as skills in container technologies like Kubernetes and Terraform, will also be important for success in this role.

At Sinch, we believe in fostering a culture of learning and growth. As a Java Backend Specialist, you will have opportunities for mentorship and knowledge sharing within the team. We also encourage participation in training and workshops to keep your skills sharp and up-to-date with industry trends, further supporting your professional development.

In the Java Backend Specialist role at Sinch, you will work with a variety of technologies, including Java and Kotlin for backend development. You will also interact with database technologies, queuing systems, and streaming tools while utilizing frameworks like Spring and Spring Boot. Proficiency in container technologies such as Kubernetes and Terraform will be key for successfully deploying microservices in a cloud environment.

The interview process for the Java Backend Specialist position at Sinch is structured and competency-based. We focus on evaluating your skills, experience, and qualifications relevant to the role. There may be data-driven assessments along the way to help us identify candidates who are likely to excel. Importantly, it's also a two-way process, and we encourage you to ask questions to get to know us better.

When answering this question, discuss specific projects where you utilized Java in backend development. Highlight your experience in creating APIs, integrating databases, or managing server-side logic, demonstrating your understanding of how Java’s features contribute to building efficient applications.

In your answer, outline your process for designing distributed systems, such as identifying the components needed, assessing performance requirements, and ensuring scalability. Discuss any specific tools or methodologies you have used, and emphasize the importance of reliability and fault tolerance in your designs.

Share your hands-on experience with the Spring framework, including projects where you used Spring Boot for building microservices. Discuss how Spring has helped you manage dependencies, work with data sources, or implement RESTful services, stressing the benefits it brings to backend development.

Discuss the specific techniques you use to measure and enhance performance, such as load testing, monitoring, and profiling. Provide examples of optimizations you've implemented in previous projects, underscoring your commitment to reliability and user experience.

When answering, choose a relevant technical challenge you encountered in backend development. Describe the context, your approach to addressing the issue, and the outcome. This showcases your problem-solving abilities and resilience in complex situations.

Mention tools you utilize for testing and measuring quality, such as JUnit for unit testing, or SonarQube for code quality analysis. Highlight how these tools help you maintain high standards in your code and their role in your development workflow.

Explain your mentoring philosophy, emphasizing your commitment to knowledge sharing and collaborative growth. Discuss specific strategies you use, such as pairing, code reviews, or tech talks, and describe how you foster an inclusive learning environment.

Share your experience with container technologies, detailing projects where you've utilized Docker or Kubernetes for deployment. Explain how these tools have streamlined your processes and improved your application's scalability and maintainability.

Discuss your methods for keeping up with industry trends, such as attending conferences, participating in online communities, or following thought leaders in the field. Emphasize your commitment to continuous learning and how it enhances your contributions as a developer.

When answering, express enthusiasm for Sinch's mission and values. Mention specific aspects of the company culture or projects that resonate with you, and explain how your skills align with Sinch’s goals, reflecting your deep interest in contributing positively to the team.