Battery Smart Data Engineer Interview Questions and Answers

SQL, excel, tableau , looker studio

Q1. What is your notice period.
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50 questions need to do in 15 mins.

Q1. Hr round easy asked to solve easy puzzle and guestimate.
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Q1. Onsite interview where they give you task that is irrelevant.
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Q1. Leetcode medium level DSA Problem
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Q1. Difference between logistic regression and svm
Ans. 
Logistic regression is a linear model used for binary classification, while SVM is a non-linear model that can handle complex decision boundaries.
• Logistic regression is a probabilistic model that predicts the probability of a binary outcome based on input features.

• SVM aims to find the hyperplane that best separates the classes in a high-dimensional space.

• Logistic regression is more interpretable and easier to implement...read more
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Q2. Data augmentation related questions
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Database schema design
API Design
Python fundamentals

Performance and scalability discussion
Architecture and Distribute system implications

Had assignment for ror and react basic crud

Q1. Elevator problem in java
Ans. 
Elevator problem in Java
• Create an Elevator class with methods for moving up and down

• Use a Queue to keep track of the floors that need to be visited

• Implement a scheduling algorithm to determine the order of floor visits
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Q2. Horse race puzzle solution
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