SW Engineer- Java and Big Data (1 yr- 1.8 yrs)

As a Software Engineer in Java and Big Data at Visa, your main responsibilities include delivering high-quality software products, developing applications that provide excellent user experiences, and actively participating in agile teams. You'll take ownership of modules from design to deployment and will be involved in testing and post-deployment support. Additionally, you'll focus on data governance tasks and coordinate with team members to address business challenges using data-driven solutions.

To qualify for the Software Engineer - Java and Big Data position at Visa, you need a bachelor's degree in Computer Science or a related field, or at least 3 years of relevant experience. A strong background in software development, especially on data-centric projects, is preferred, along with proven skills in Java programming. Familiarity with Big Data technologies like Hadoop and Spark, as well as knowledge of RDBMS, SQL, and testing methodologies, will be immensely beneficial.

A Software Engineer in Java and Big Data at Visa should be proficient in Java and have hands-on experience with Big Data technologies such as Hadoop, Spark, and Hive. Additionally, familiarity with UNIX/Linux OS, Shell scripting, SQL, Git, and knowledge of AI concepts would be advantageous. Proficiency in Scala, Kafka, and workflow management tools like Airflow can also enhance your contributions to the team.

While not mandatory, having experience in AI/ML development can be an added advantage when applying for the Software Engineer - Java and Big Data position at Visa. Familiarity with AI concepts, tools like GitHub Copilot for code development, and exposure to machine learning can set you apart from other candidates and can be valuable in improving data processing and software efficiency.

As a Software Engineer - Java and Big Data at Visa, you can expect a collaborative and energetic work culture that encourages innovation and teamwork. The environment is fast-paced, where adaptability and communication are key. With a focus on personal growth and teamwork, Visa offers a hybrid work model that supports work-life balance while allowing you to engage in meaningful projects that impact the payment technology landscape.

When answering this question, focus on specific projects where you utilized Java, highlighting challenges you faced and how you overcame them using Java. Mention any frameworks or libraries you used, and how they contributed to the project's success. Detailing your problem-solving approach will demonstrate your practical experience and technical skills.

Share your systematic approach to debugging, including steps like isolating the problem, utilizing debugging tools, and collaborating with team members for insights. Emphasize your analytical skills and your desire to improve processes as you fix issues, showcasing your proactive attitude toward learning and development.

When discussing your perspective on successful agile teams, mention collaboration, clear communication, and adaptability as primary components. You can also talk about the importance of continuous feedback and iterative development. Share an example of how you contributed to an agile team’s success and the positive outcomes that followed.

In your response, provide details on specific projects where you've successfully applied Hadoop or Spark. Discuss your role in these projects, the challenges of handling large datasets, and how you utilized the technology to derive meaningful insights or improve performance. Highlight your understanding of their ecosystems and application.

Talk about methodologies you use for maintaining code quality, such as code reviews, unit testing, and adhering to design patterns. Discuss how you continuously seek feedback and make adjustments, showcasing your commitment to delivering high-quality code and your belief in the importance of best practices.

Choose a relevant and challenging problem and walk the interviewer through your thought process. Explain the problem, the steps you took to analyze and resolve it, and any innovative solutions you developed. This shows your critical thinking skills and your ability to tackle complex tasks effectively.

Share your experience working with relational databases, mentioning specific queries you’ve written and how you’ve utilized SQL for data manipulation and reporting. Highlight any projects where you had to optimize database performance or integrate database solutions into larger systems.

In your answer, provide a specific example where collaboration led to a successful outcome. Highlight the diversity of skills in your team, how you approached communication, and any challenges overcome. This showcases your ability to work beyond your technical expertise and emphasizes your team-oriented mindset.

Discuss techniques such as prioritization, breaking tasks into smaller parts, and remaining adaptable to changes. Mention your ability to stay focused under pressure and how you maintain productivity. Providing examples of previous experiences can strengthen your answer.

Share your strategies for staying informed about new technologies, such as following industry blogs, attending webinars, or participating in professional networks. Mention any certifications or online courses you've completed to enhance your skills, showcasing your commitment to continuous learning.