Sr. Data Engineer - job 23 of 26

As a Sr. Data Engineer at Visa Technology & Operations LLC, you'll perform diverse data engineering activities, primarily on the Hadoop and Greenplum Data Warehouse platforms. Your responsibilities will include working with large datasets, loading data from various sources, documentation, performance testing, and ensuring the applications are debugged and reliable. Additionally, you'll play a critical role in maintaining compliance with IT security and regulatory requirements, making your role vital to managing data responsibilities efficiently.

To qualify for the Sr. Data Engineer position at Visa Technology & Operations LLC, a strong educational background in computer science or related fields is critical. Expertise in data engineering using Hadoop and Greenplum Data Warehouse is essential, along with a solid understanding of Big Data technologies. Skills in performance testing, documentation, and debugging applications are also crucial. Experience with cybersecurity measures and regulatory compliance in data usage will set you apart as a candidate.

A Sr. Data Engineer at Visa Technology & Operations LLC will work on a variety of projects that revolves around handling extensive datasets and building programs utilizing Massively Parallel Processing Data Warehouse platforms. This includes tasks such as performance testing, managing disparate data sources, and ensuring that data systems meet regulatory compliance standards. You'll have the opportunity to innovate and be at the forefront of Visa's data solutions.

Yes, Visa Technology & Operations LLC offers the flexibility for partial telecommuting for the Sr. Data Engineer position. While your primary location will be in Austin, TX, this flexibility allows you to balance work-life commitments while still being an active member of the team in project meetings and collaborations.

The Sr. Data Engineer role at Visa Technology & Operations LLC plays a crucial role in maintaining IT security by ensuring that data handling adheres to regulatory compliance and best practices in security architectures. By managing long-term retention for security logs and working with evolving threat landscapes, you will help safeguard Visa's data assets, making your position vital for supporting the organization's overall data security strategy.

When discussing your experience with Hadoop and Greenplum, it's important to highlight specific projects you've worked on, the datasets you've managed, and any performance improvements you implemented. Talk about your understanding of how these platforms work and the challenges you faced, along with how you overcame them, demonstrating your technical expertise and problem-solving abilities.

When answering this question, consider detailing your step-by-step process for debugging applications. Discuss your methods for identifying issues, using logs for analysis, and how you collaborate with team members to resolve problems. Showcasing a systematic approach emphasizes your analytical skills and teamwork.

Talk about the specific performance testing techniques you utilize, such as load testing or query optimization, explaining how these methods help improve application efficiency. Mention tools you've used in the past and any KPIs you've focused on to measure performance, highlighting your results-driven mindset.

Discuss your strategy for staying updated with the latest trends in data security, such as following industry blogs, attending webinars, or participating in relevant online communities. Mention how this knowledge impacts your work as a Sr. Data Engineer at Visa, and how you apply new insights to maintain compliance and safeguard data.

When explaining Massively Parallel Processing (MPP), provide a clear definition and give examples of how this architecture improves data processing speeds. Relate your experiences with MPP platforms and describe specific scenarios where you leveraged these capabilities to handle large datasets efficiently.

Detail your methodology for loading data from various sources, focusing on data integration techniques, transformation processes, and ensuring data quality. Discuss your experience with different ETL tools and how you approach minimizing discrepancies during data merging.

Share specific challenges related to data compliance that you've encountered, and describe the strategies you employed to overcome them. Highlight your adaptability and decision-making skills in navigating complex regulatory landscapes while ensuring your projects remained compliant.

Select a project where teamwork was essential, emphasizing your role and how you contributed to a collaborative environment. Share details about the technical challenges faced, the teamwork dynamics, and the impact of that collaboration on the project's success, reinforcing the importance of communication skills.

Discuss qualities such as analytical thinking, attention to detail, adaptability to changing technologies, and strong communication skills. Provide examples of how you have demonstrated these qualities in your career and how they relate to your potential role at Visa Technology & Operations LLC.

When answering this question, consider explaining your organizational methods, such as using project management tools or prioritizing tasks based on deadlines and team communication. Share a specific instance where your prioritization led to successful project completion, demonstrating your ability to thrive in a dynamic work environment.