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Lead Backend Developer Interview Questions

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9,384 lead backend developer interview questions shared by candidates

Second interview - White board session, building an architecture to details. given many tokens to an API given by users, build an architecture that queries the API with all the tokens, saving the data to a data lake. All in the highest scale possible, without breaking the API restrictions or losing data along the way.
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Backend Developer

Interviewed at Lusha Systems

3.6★
Dec 1, 2025

Second interview - White board session, building an architecture to details. given many tokens to an API given by users, build an architecture that queries the API with all the tokens, saving the data to a data lake. All in the highest scale possible, without breaking the API restrictions or losing data along the way.

What is Django ORM and why is it used? What are the differences between class-based views and function-based views in Django? What is middleware in Django and can you give an example? What is a serializer in Django REST Framework and why is it important?
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Backend Developer

Interviewed at Akinon

2.8★
Jan 3, 2026

What is Django ORM and why is it used? What are the differences between class-based views and function-based views in Django? What is middleware in Django and can you give an example? What is a serializer in Django REST Framework and why is it important?

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