Solutions & Tools

Can you walk me through the high-level design of a recent project you worked on, including technology and solution detailing?

Do you have experience with any additional programming languages or frameworks beyond Java, such as Node or Python?

How do you approach bug fixing and server-side troubleshooting in production support?

Can you explain the difference between unit testing and endpoint testing, and give an example of how you have used each in a project?

Have you worked with any build automation tools such as Jenkins or Docker? Can you give an example of how you have used them to improve your workflow?

Have you worked with any log export and monitoring tools such as ELK or Jaeger? Can you give an example of how you have used them to diagnose an issue?

Can you explain your experience with mentoring and training team members, and give an example of how you have mentored someone in the past?

How do you gather requirements and estimate timelines for a project, and how do you handle stakeholder management?

Can you explain the high-level design of a project you have worked on, including its logical and sequence views, application layering, and any design views?

How would you handle a database that requires sharding? Can you explain the sharding process and how it affects database performance?

Can you give an example of how you used a profiler to analyze and optimize the performance of a Java application? What steps did you take to identify and resolve performance bottlenecks?

How would you approach troubleshooting a production issue that affects multiple regions? What tools and techniques would you use to identify and resolve the issue?

Can you explain how you would set up and configure ELK (Elasticsearch, Logstash, and Kibana) to export and monitor application logs? What benefits does this provide for troubleshooting and performance tuning?

Can you describe a time when you mentored or trained a team member? How did you approach the task, and what was the outcome?

Have you completed any relevant certifications? Can you discuss the skills and knowledge you gained from pursuing these certifications?

Can you explain the process you use for gathering requirements and estimating the level of effort for a development task? How do you manage stakeholder expectations throughout the process?

Can you discuss your experience with Jenkins and Docker, and how you have used these tools to automate build and deployment processes? Can you describe any challenges you faced and how you overcame them?

In a high-availability architecture, what is the difference between active-active and active-passive failover modes? What are the advantages and disadvantages of each mode?

Explain the process of profiling an application. How would you identify a performance bottleneck in a Java application using a profiler? What are the common profiling tools available for Java applications?

What is garbage collection in Java? How does the JVM manage memory allocation and deallocation? How can you optimize garbage collection to improve application performance?

Explain the concepts of database isolation and sharding. What are the benefits and drawbacks of each approach? How do you decide which approach to use in a given scenario?

What are some common challenges associated with database replication? How can you ensure data consistency across multiple database nodes? What are some tools and techniques available to monitor and manage database replication?

Explain the difference between unit testing and integration testing. What are some common testing frameworks and tools available for Java applications? How can you ensure that your tests are comprehensive and effective?

What are some common techniques used for load testing and performance testing of web applications? How can you identify performance bottlenecks in a web application? What are some tools available for load testing and performance testing?

Explain the concepts of continuous integration and continuous delivery. What are some common tools and techniques used for CI/CD? How can you ensure that your CI/CD pipeline is robust and reliable?

Explain the difference between logging and monitoring. What are some common logging and monitoring tools available for Java applications? How can you use logging and monitoring to identify and troubleshoot issues in your application?