When international students in North America start looking for summer internships, many are curious about real Data Engineer interview experiences. This role isn’t just about writing code—it also involves understanding data workflows and infrastructure. Based on what students have shared, the interviews typically include two main parts: technical questions and behavioral questions.
In the technical section, SQL comes up a lot. Interviewers usually ask for complex queries involving multi-table joins, grouping, aggregation, and window functions. Sometimes, they tie the question to a real business case and expect you to write optimized code. Beyond SQL, Python also plays a big role, especially for tasks like cleaning or transforming data. Some companies even ask system design questions—things like how to build a data pipeline or how to improve a storage setup.

Behavioral interviews are just as important. Data engineers often work closely with teams like data science or product, so clear communication matters. It helps to pick a few examples from past projects where you faced real challenges. Describe what the problem was, what steps you took, and what the result was. This gives the interviewer a sense of how you think and work with others.
For students targeting internships, getting comfortable with SQL and Python should be a top priority. It’s also useful to know the basics of cloud tools like AWS or GCP. Daily SQL practice and building small data projects can make a big difference—they give you something concrete to talk about and help you get used to real-world tasks.
In the end, Data Engineer interviews focus on how you solve problems and how well you understand the work behind the scenes. Practicing problems is useful, but don’t overlook the importance of business thinking and being ready to learn. Reading other people’s interview stories, reflecting on what worked for them, and practicing often can all help boost your chances of getting a good summer offer.