Lead Engineer Interview Questions

7,944 lead engineer interview questions shared by candidates

Java questions where they will miss importing a library which will be the point of contention. They want you to know the libraries, type of classes -all of which can be solved by a simple google search but will comment on your ability for their own mistakes in the question presented.
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Senior Lead Software Engineer

Interviewed at Capital One

3.6
Jan 29, 2024

Java questions where they will miss importing a library which will be the point of contention. They want you to know the libraries, type of classes -all of which can be solved by a simple google search but will comment on your ability for their own mistakes in the question presented.

case interview about VCN Handout 1: Virtual Credit Card Number Validation rules Similar to credit card numbers, the digits in virtual card numbers and associated transaction numbers may seem random, but they actually carry meaning. When a Capital One Virtual Credit Card is used, the data must be validated against certain business rules to arrive at a spend decision. These rules are applied to specific digits in the VCN and transaction id. Each transaction made with a VCN is assigned a unique eight (8) digit transaction id.
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Lead Software Engineer

Interviewed at Capital One

3.6
Mar 19, 2025

case interview about VCN Handout 1: Virtual Credit Card Number Validation rules Similar to credit card numbers, the digits in virtual card numbers and associated transaction numbers may seem random, but they actually carry meaning. When a Capital One Virtual Credit Card is used, the data must be validated against certain business rules to arrive at a spend decision. These rules are applied to specific digits in the VCN and transaction id. Each transaction made with a VCN is assigned a unique eight (8) digit transaction id.

1st round: 4 leet-code style questions on CodeSignal. 2 easy, 2 medium/hard. 2nd round: 4 interviews in total a. ML job fit interview: was asked about some ML basics such as bias/variance tradeoff, how to deploy models, reduce latency during inference b. ML job fit interview: One coding question (find number of primes until N), and some questions about ML model deployment. c. Case Study: simple quantitative analysis of cost-benefit analysis about simple vs rigorous testing of software release cycles. d. Behavioral: 3 questions about past experience - describe a challenging situation you encountered - describe a time when you had to prioritize one task over another - describe when you changed status quo
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Lead Machine Learning Engineer

Interviewed at Capital One

3.6
Jul 10, 2022

1st round: 4 leet-code style questions on CodeSignal. 2 easy, 2 medium/hard. 2nd round: 4 interviews in total a. ML job fit interview: was asked about some ML basics such as bias/variance tradeoff, how to deploy models, reduce latency during inference b. ML job fit interview: One coding question (find number of primes until N), and some questions about ML model deployment. c. Case Study: simple quantitative analysis of cost-benefit analysis about simple vs rigorous testing of software release cycles. d. Behavioral: 3 questions about past experience - describe a challenging situation you encountered - describe a time when you had to prioritize one task over another - describe when you changed status quo

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