Platform Engineer Interview Questions

3,059 platform engineer interview questions shared by candidates

1. Given Code snippet- Custom class - Employee Write equals & hashcode method for it. 2. How will you make Employee class good candidate for hashmap. 3. Complexity of ArrayList - Search Operation & Insertion operation.
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Senior Associate Platform L2

Interviewed at Publicis Sapient

3.4
Apr 29, 2023

1. Given Code snippet- Custom class - Employee Write equals & hashcode method for it. 2. How will you make Employee class good candidate for hashmap. 3. Complexity of ArrayList - Search Operation & Insertion operation.

Explain move semantics in C++ (C++11) in detail. Cover the concept step by step and explain why it is needed, how it works, and where it is used. Then, write a complete class implementation demonstrating move semantics, ensuring that all relevant special member functions are implemented, including: Default constructor Destructor Copy constructor Copy assignment operator Move constructor Move assignment operator Explain the purpose of each function, when it is invoked, and how resource ownership is transferred safely without memory leaks or double deletion.
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Senior Associate Platform L1

Interviewed at Publicis Sapient

3.4
Dec 13, 2025

Explain move semantics in C++ (C++11) in detail. Cover the concept step by step and explain why it is needed, how it works, and where it is used. Then, write a complete class implementation demonstrating move semantics, ensuring that all relevant special member functions are implemented, including: Default constructor Destructor Copy constructor Copy assignment operator Move constructor Move assignment operator Explain the purpose of each function, when it is invoked, and how resource ownership is transferred safely without memory leaks or double deletion.

Technical questions covered topics such as knowledge on Infrastructure as code (particularly understanding how terraform works and what happens in particular situations), Monitoring and observability, Docker container optimisation, Kubernetes troubleshooting and concepts.
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Platform Engineer

Interviewed at dunnhumby

4.3
Feb 15, 2025

Technical questions covered topics such as knowledge on Infrastructure as code (particularly understanding how terraform works and what happens in particular situations), Monitoring and observability, Docker container optimisation, Kubernetes troubleshooting and concepts.

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