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Junior Data Engineer Interview Questions

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449 junior data engineer interview questions shared by candidates

Las preguntas en estaban muy dirigidas a la motivación personal de incorporarte al equipo. Supongo que al ser un puesto junior lo que mas buscan es un buen cultural fit, aunque una ligera experiencia pero muy enfocada a la posición te ayudará. En las dos ultimas fases hay algunos tests, presentaciones de proyectos y sus tecnologías y una fase grupal final.
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Junior Data Engineer

Interviewed at Adevinta

3.3★
Aug 19, 2020

Las preguntas en estaban muy dirigidas a la motivación personal de incorporarte al equipo. Supongo que al ser un puesto junior lo que mas buscan es un buen cultural fit, aunque una ligera experiencia pero muy enfocada a la posición te ayudará. En las dos ultimas fases hay algunos tests, presentaciones de proyectos y sus tecnologías y una fase grupal final.

During this interview, I was asked to complete three tasks: Write a Python script and SQL queries to connect to a database, perform complex joins between four tables (with keys stored in JSONB), debug the code, and store the result in a DataFrame. A conceptual task where I had to read a paragraph and design a database schema based on the explanation. Write a script to connect to the Benchling website to retrieve data from specific tables and store it in a CSV file. All of this was expected to be done within one hour, which does not make sense. The interviewer also told me that he had never conducted an interview before. After that, I never heard back from the team. I followed up, but never received a response. I think this is a bit disrespectful.
avatar

Junior Data Engineer

Interviewed at phagos

3★
Dec 24, 2025

During this interview, I was asked to complete three tasks: Write a Python script and SQL queries to connect to a database, perform complex joins between four tables (with keys stored in JSONB), debug the code, and store the result in a DataFrame. A conceptual task where I had to read a paragraph and design a database schema based on the explanation. Write a script to connect to the Benchling website to retrieve data from specific tables and store it in a CSV file. All of this was expected to be done within one hour, which does not make sense. The interviewer also told me that he had never conducted an interview before. After that, I never heard back from the team. I followed up, but never received a response. I think this is a bit disrespectful.

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