Senior Java Developer

As a Senior Java Developer at Ouro, your primary responsibilities will include designing and developing scalable microservice applications, deploying these applications in AWS, and ensuring thorough awareness of the Software Development Life Cycle (SDLC). You will collaborate with product managers, designers, and backend developers to understand and meet user requirements, while also contributing your insight gained from hands-on experience in large-scale projects.

To qualify for the Senior Java Developer position at Ouro, candidates should have a Bachelor’s Degree in Computer Science or a related field with at least 5 years of relevant experience. A strong knowledge of Core Java, Web Services, Kafka, microservices, and AWS is crucial. Additionally, basic database skills, a good understanding of Advanced Java, and experience with version control systems like Bitbucket or GIT are also important.

In your role as a Senior Java Developer at Ouro, you will work on numerous enterprise and large-scale projects, contributing to the development of applications that empower consumers with innovative financial services. Your work will focus on creating high-performance microservices that enhance the overall user experience for Ouro's diversified financial products.

Yes, experience in the banking domain is a preferred qualification for the Senior Java Developer position at Ouro. Having a background in this field can provide you with valuable insights into industry-specific challenges and requirements, promoting the development of solutions that are both effective and relevant to the financial services sector.

Ouro emphasizes agile methodologies and modern development practices, encouraging flexibility and collaboration among team members. As a Senior Java Developer, you will engage in iterative development processes, work closely with cross-functional teams, and adapt to evolving project needs, which fosters an environment of innovation and excellence.

To answer this question effectively, discuss specific projects where you've implemented microservices, detailing the challenges encountered and how you overcame them. Highlight your understanding of scalability, service-to-service communication, and how microservices fit into the overall architecture of applications you've worked on.

In your response, provide concrete examples of AWS services you have used, such as EC2 for hosting applications, S3 for storage, or Lambda for serverless architecture. Be specific about how these services enhanced the performance and deployment of the microservices you developed.

Discuss your approach to writing clean, maintainable code while utilizing tools like JUnit or Mockito for testing. You can also mention practices like code reviews, performance testing, and specific methodologies you follow to maintain high standards.

Share your familiarity with version control systems, especially Bitbucket or GIT. Explain your workflow, how you manage branches, pull requests, and resolving merge conflicts, and highlight any collaborative practices like code reviews within your team.

Elaborate on your proficiency with Core Java concepts such as OOP principles, collections framework, and exception handling. Don't forget to touch on advanced topics like multithreading, Java streams, or the Java Memory Model to showcase your depth of knowledge.

Discuss your experience participating in agile ceremonies like stand-ups, sprint planning, and retrospectives. Emphasize how you collaborate with your team and adapt your development practices based on feedback and iterative cycles.

Share details about your experience working with SQL databases, discussing the types of queries you've written, normalization processes you've applied, and any database-related optimizations you've implemented.

Discuss Kafka's role as a messaging system that enables communication between microservices. Explain how you’ve used Kafka for event streaming, data pipelines, or ensuring data consistency across services.

Mention key best practices like utilizing IAM policies for security, implementing auto-scaling for performance optimization, and using CloudFormation for infrastructure as code. Provide examples from your own experiences.

Explain your process for integration testing, including frameworks used and how you validate interactions between different services. Stress the importance of automation in this area to maintain efficiency and accuracy in your testing process.