Candidatei-me online. O processo levou 3 meses. Fui entrevistado pela Amazon Web Services em nov. de 2023
Entrevista
You have to be able to answer in the STAR format.
Last round was with two people at manager level, I think.
Before the last round, a recruiter reached out to me to remind me the leadership principles and give answers aligned with them.
Perguntas de entrevista [1]
Pergunta 1
Tell me about the experience that represents your customer obsession
Candidatei-me online. O processo levou 2 semanas. Fui entrevistado pela Amazon Web Services (Londres, Inglaterra) em mai. de 2022
Entrevista
Consisted of three rounds.
1. Online assessment: work simulation, amazon workstyles, working with customers simulation & work preferences & skills. Basic computer science questions related to computer networks, data analysis, cloud compute and migration.
2. Phone interview: questions based on a project and respective follow up questions. General data science and machine learning questions.
3. Loop interview: two technical and two managerial interviews with members of the professional services team and senior consultants respectively. One of the interviews consist of a presentation on a recent project undertaken.
Perguntas de entrevista [2]
Pergunta 1
Behavioural questions on the "tell me about a time.." kind of questions. (Search for amazon behavioural questions and prepare answers using STAR method for each amazon principle).
- Explain ETL and ELT (Asked twice in two separate interviews)
- Types of ensemble methods
- In depth explanation of bagging and boosting.
- Difference between SQL and NoSQL. Give one application for both.
- Types of regularization.
- What is the difference between deep learning and machine learning. State a scenario where deep learning is preferred.
- A/B testing.
- Hypothesis testing.
- When should a relational database be used?
- How to avoid overfitting and underfitting.
- Explain stratified and K-fold cross validation.
