Uber Front-End Engineer Interview Guide

A coding exercise can be found on the phone's screen. As you continue to work, your interviewer will use HackerRank to read your programs. To solve the problems, you can use your preferred programming language. You might also need to explain your code if the interviewer is unfamiliar with the language being used for programming. The average length of each phone interview and in-person interview is 40 minutes.

• Do you have any prior knowledge of microservices?
• Analyze the JavaScript provided and explain what it is doing.
• What should you do if JavaScript performance problems arise?

There will be 4-6 face-to-face interviews conducted by Uber on-site all at once. You'll either be asked to use a whiteboard or HackerRank to tackle the challenges during the interview.

Each interview generally includes a discussion of prior job experiences for 5–10 minutes in addition to situational and behavioral interview questions. The last five to ten minutes are for you! Inquire about the job role from the interviewer. Ask detailed questions about the position you are looking for, the project or division, and additional details like the company's employee diversity and inclusivity policy.

• Tell us about a time when you overcame a problem by using your communication skills.
• Tell me about the project you are working on that is the most intriguing and what you are learning from it.
• Describe a period when you made it your mission to enhance internal working practices.
• How do you set priorities while working on several projects at once?
• If you disagree with a company policy or process but must follow it nonetheless, what will you do?

You will answer coding-related questions in this round. It lasts for an average of 45 minutes.

• You are given an array/list of unsorted ARR of N integers. Return the length of the longest consecutive sequence. The consecutive sentence in the form ['NUM', 'NUM' + 1, 'NUM' + 2, ..., 'NUM' + L], where 'NUM' is the starting integer of the sequence while L + 1 is the length of that sequence. If we find duplicates in the array, we will consider only one of them in a consecutive sequence. Like, for the given ARR [9,5,4,9,10,10,6], output = 3. Here, the longest consecutive sequence is 4, 5, and 6. Can you also solve this in 0(N) space complexity and 0(N) time?
• A group of friends went on a trip and lent each other money for various purposes. The tuple (X, Y, Z) represents each transaction, i.e., person X gave person y $Z. Given a list of 'N' number of transactions, return the minimum number of transactions required to settle the debt.
• Given a two-dimensional Boolean matrix, find the number of islands. An island is a group of connected 1s or a standalone 1. A cell in the matrix can be connected to up to 8 neighbors: 2 vertical, 2 horizontal, and 4 diagonal.

Candidates are requested to provide concrete examples of occasions where they applied particular talents during the behavioral interview round. It is time to show how you can help this firm move forward.

• Which abilities do you believe Uber employees need to have the most?
• Tell us about your advantages and disadvantages.
• How do you handle a project life cycle?
• What makes you a good fit for this job, in your opinion?
• What were the three most disliked things in your past job?
• Tell us about a time when you had to decide something despite having little knowledge.
• Have you ever felt overwhelmed with office work? When and why?
• Describe a time when you disagreed with a coworker at previous employment.
• Tell us about the hardest decision you ever made at work.
• What is your strategy to prioritize tasks if you are working on multiple projects?