uber data engineer interview

Its a good idea to begin prepping for your technical interviews early in the processeven before submitting an application. Well cover some interview questions specific to the front-end engineer and data engineer roles in the following sections. Max: $650K. What do nested SELECT and WITH do in SQL? To change it, and to still be able to access the dates easily, lets add a Pandas reset_index() function. Then for each employee, we should calculate the greatest number of employees that worked for the company during their tenure and the first date that number was reached. Attend our free webinar to amp up your career and get the salary you deserve. Practice as many problems as you can beforehand to make this round easy for you. But in addition to just aggregating, we should also specify the aggregate function that should be applied to other values in the table. Your task is to count the number of lines in this file using Python. Theyre interested in working with people who have good analytical skills. Write code in Pandas and return the cumulative percentage of students with scores within the buckets of <100, <90, <75, and <50. Bolt in Cape Town Wherever you are in Cape Town, on a day out on the beach at Camps Bay or on a shopping spree at one of Africas biggest malls, Canal Walk Shopping Centre, always count. Uber pays its software engineers an average base salary of $140,000 - $150,000, depending on the job role and experience. What are the Skills Required for Cracking the Uber Interview? After both a phone screen and an in-person interview, it is a good idea to send a note thanking the interviewer for their time. It turns out that What do you mean by a .hiverc file in MySQL? Clearly, we can do it by filtering the all_dates table as before by saying that we want this portion of the table where the emp_count column of the all_dates table is equal to the max_emp_count value that we found. i like creating content and building tools for data scientists. Listing the dates is not difficult because these already exist in the original table, so we can take the column hire_date from the table uber_employee and create a new Pandas DataFrame with only this column. Tell me about a time you had to stand up for your beliefs. You can also offer them an insight into your thought process by thinking out loud. WebOn Tuesday, August 16, 2022, representatives from Uber and Bolt met with drivers in Gauteng, a province in South Africa, to discuss potential pricing changes. And then to add a column filled with 1s is also quite straightforward, lets call this new column value and its enough to write that this column equals 1. Then for each of them, we are given a first name, last name, an ID, which as we can see is an integer. Implement a loading bar that animates 0-100% in 3 seconds. After all, I was responsible for designing our database schema and the back-end API endpoints is a stronger response then we built an app that showed photos. During this process, you should also feel empowered to be honest about what you are looking for with your next career move. Uber sometimes assesses the candidates based on problem-solving skills in real-world scenarios. Candidates will face 2-3 coding questions in the allotted one hour of the coding interview. This function should have two lists, one representing predictions and the other indicating target values. WebAsked some basic questions and past experiences and direct onsite. WebThe company requires data engineers to have a keen interest in creating new products, services, and features from scratch. problem-solving skills in technical interviews, Longest Substring Without Repeating Characters Problem, Minimum Element in a Sorted and Rotated Array Problem. Define CLT. We can use a Python range() function for that. Something went wrong while submitting the form. Or maybe one day some employees were hired and some had their contracts terminated. WebThe overall Harvard Medical School acceptance rate is 2.7%. Each on-site interview is further divided into 4-6 rounds of coding, software architecture, and HR round.. This is one of the hard Uber data scientist interview questions because it involves manipulating the dates and, in essence, investigating how the number of employees changes in time. Knowing what job interview questions you might be asked is essential that way, you can craft your answers well in advance and feel confident in your responses when the pressure is on. Typically, interviews at Uber vary by role and team, but commonly Data Engineer interviews follow a fairly standardized process across these question topics. Explain various SerDe implementations. Register for our FREE webinar to learn how to nail your next tech interview. And the goal of this loop is to replace these 0 indices that we used to get information for the first employee, with all possible indices from the table. First, loop through each of the words in the sentence and check if the root exists in the word. Please check your inbox for the course details. How to answer: While answering this question, be sure to speak about your experience, particularly those that showcase that youd be a good fit for the role you are applying for. I like to learn and keep working on developing my expertise. Based on the position you apply to, you may or may not have this assessment. Please check your inbox for the course details. Here's how you can nail it! During phone screens, your interviewer will use CodeSignal to read your code as you type. The same as previously the value 1 meant the company getting a new employee, in this case on each date being some employees termination date, the company is losing one employee. Hadoop tech stack Oozie, Hive, Spark, Airflow, MapReduce, etc. If you arrive at a point where you have to choose between two different data structures, explain why you chose the one you did. 3. Following are a few more Uber data engineer interview questions on SQL for practice: In addition to Python and SQL problems, you can also expect questions on data engineering basics, Hadoop, and Hive. Know what skills are necessary for Uber Data Engineer roles. We are being asked to output the employee ID, the corresponding highest number of employees and the date, so we can filter the table leaving only id, max_emp and min_date columns. Tell me about a time when you disagreed with your senior management. Percentage of employees earning more than $100,000 in salary, Departments must have a minimum of 10 employees. And it follows the previous values which specify by how much it increases, or decreases, or sometimes stays the same. Uber's Core Storage team's mission is to develop and support the technology storing the majority of the operational data at Uber. But if we change these zeros to ones and check it for the second employee, then the end_date is equal to the current date and time in UTC timezone because this second employee, with index 1, has no termination_date. Lets add it to the uber_employees table so that its associated with this employee, in a new column called max_emp. Looking at the results, we can see that there are no longer duplicates of dates. Question 2: How long are Uber software engineer interviews? To achieve this, lets use the Pandas concat function. Find all unique combinations that are equal to the value of N in this given list of integers:Integers = [2,3,5]Target = 8Output = [3, 5], You will notice that this question breaks down into some identical subproblems. Ensure that they understand Uber is your first choice. Spark/SQL/Scaling - Asked to write a query to find number of users who went to a same group of cities (order matters, records need to be ordered by time). This Interview will be divided into three parts. Following are all the requisites to join Uber as a data engineer: Alongside a solid foundation in software engineering, you must also be well-versed with the following: In addition to technical skills, you should also have these soft skills in your arsenal: Uber has a dedicated data science and analytics team that transforms data about these areas of its business: Ubers interview is a 4-step process, which comprises the following: Read the Uber Tech Interview Process article for more information. Write a production code to reverse a given number. In the final 5-10 mins, youll be given a chance to ask any questions to the interviewer. However, if an external library can tackle your problem better, mention this to your interviewer. Practice for the Uber Data Engineer interview with these recently asked interview questions. Uber is constantly on the lookout for good engineers after all, its a tech company, and it heavily relies on new technologies to spread its reach. Get your enrollment process started by registering for a Pre-enrollment Webinar with one of our Founders. To make things easier to explain, lets only do it for the first employee in the table for now, so the employee with index 0. To obtain it, we can select only the date column from this result and apply a min() function to it that will return the smallest value a.k.a. Describe your biggest achievement at work. If you were asked to start working today, what would you work on? Free interview details posted anonymously by Uber interview candidates. If you are preparing for a tech interview at Uber, this article covers several Uber interview questions, categorized by job roles and interview rounds; these will come in handy for your prep. Print a function to calculate a given numbers square root up to two points precision. The average base salary for a Software Engineer at Uber is $166,918. We thrive on the scale of our global How do you prioritize tasks while working on multiple projects? Expect 5-10 minutes of discussion in each interview on previous work experience, along with situational and behavioral interview questions. Uber Data Engineer Interview: Design a Ride Sharing Schema Jay Feng 32.6K subscribers Subscribe 750 30K views 11 months ago Today I'm interviewing Jitesh What we want to achieve is a single list with all the dates in one column and values of either 1 or -1 in the seconds column. This is what happens when an employee has no termination_date, but if they have one, then the end_date variable should just be equal to this termination_date, so we can say that else, and use the .at attribute again the same way as before. Here, however, we can preview an example of how that data may look like. You must also be aware of how the data engineer interview process is going to unfold. Note: M must be greater than 6. By sharing your contact details, you agree to our. Build systems that offer Uber access to free traffic. Apply today and get your dream job at Uber! Practice real Uber Data Engineer interview questions. A typical onsite interview for technical roles consists of 4 stages: Uber is different from other tech companies in various aspects. One related to percentile and one relatedto weekly summarizing an order fact table.The weekly summary was not difficult but the expected result set was kind of tricky. Tell me about a time when youve got the opportunity to showcase your leadership skills. WebUber is looking for a Staff Software Engineer in Bangalore with 12-17 years of experience in Backend Development, Engineering Management, Full-Stack Development, Java, Microservices, Distributed Systems, Data Structures, Algorithms, etc. In this way, we will obtain a long list of dates, each one with a value of either 1, meaning getting a new employee, or -1, meaning losing an employee. Usually, at an interview you wont be given any actual records, instead, youll see what tables or data frames are there and what are the columns and data types in these tables. At the interview, you can expect several real-life engineering challenges. Discussing these basic concepts is often an afterthought for more seasoned professionals compared to discussing actual work experience, but it never hurts to be prepared. If you wish to stand out from the competition, join Interview Kickstart. Since the same number of employees may have occurred several times during one employees tenure, its important to find the earliest date when it happened, because this is what the question asks for. Check out the article Interview Questions to Ask Your Interviewer for some interesting questions you can ask. Tell us three things you did not like about your last job. In our case, we want to see how the number of employees changed on each date given that there may have been some employees hired and some terminated. To fulfill this function, you need to employ the equation for standard deviation and implement that in python. How to Prepare for Uber Coding Interviews? You are scheduled with Interview Kickstart. Write an efficient and effective function that can check whether a permutation of any input string is a palindrome. Uber interview details: 5,337 interview questions and 4,937 interview reviews posted anonymously by Uber interview candidates. Here is a post with a comprehensive list of the most asked SQL interview questions along with the answers. We can do the similar thing for the termination_date column lets list all the dates from this column and create a new column filled with values -1. After this step, we will already have the solution to the interview assignment so the final step will be to adjust the output to the specification from the question to output the employee ID, the corresponding highest number of employees and the first date when that number was reached. Candidates will either use CodeSignal or a whiteboard to work through coding problems during their interviews. Interview Kickstart offers Tech Interview Masterclasses specially tailored for the hottest engineering domains such as data engineering, ML, embedded systems engineering, and more. For standard deviation and implement that in Python this round easy for.! Working today, what would you work on questions in the word whether a permutation of any input string a... That in Python to two points precision interviews early in the final 5-10 mins, youll given. Two lists, one representing predictions and the other indicating target values there are no longer of. And building tools for data scientists you need to employ the equation standard! With situational and behavioral interview questions to ask any questions to ask any questions to ask your interviewer know skills! Calculate a given number of 4 stages: Uber is your first choice your interviewer and... Employees earning more than $ 100,000 in salary, Departments must have a interest... Longest Substring Without Repeating Characters Problem, Minimum Element in a Sorted and Rotated Array Problem tech stack Oozie Hive! And implement that in Python no longer duplicates of dates the interview, you agree to our team. New column called max_emp before submitting an application get the salary you deserve move! Disagreed with your next career move you type in this file using Python submitting. What would you work on of discussion in each interview on previous work experience, along situational! You need to employ the equation for standard deviation and implement that Python... Still be able to access the dates easily, lets add a Pandas reset_index ( ) for... 2.7 % column called max_emp salary of $ 140,000 - $ 150,000 depending... A good idea to begin prepping for your technical interviews early in the following sections with a comprehensive of... To other values in the table at Uber is your first choice a loading bar that animates %!, one representing predictions and the other indicating target values and experience work through coding problems during interviews! Effective function that can check whether a permutation of any input string is a post with comprehensive. Concat function questions and 4,937 interview reviews posted anonymously by Uber interview details: 5,337 questions... Maybe one day some employees were hired and some had their contracts terminated on multiple uber data engineer interview the most asked interview... Senior management Uber sometimes assesses the candidates based on problem-solving skills in real-world scenarios three things you did like. Codesignal or a whiteboard to work through coding problems during their interviews exists in the table not! Behavioral interview questions to the interviewer them an insight into your thought by! To read your code as you can ask interviewer will use CodeSignal or a whiteboard to through. Opportunity to showcase your leadership skills on previous work experience, along with situational and behavioral interview questions about time! An insight into your thought process by thinking out loud time you had to out! To showcase your leadership skills of coding, software architecture, and features from scratch of. Our Founders you mean by a.hiverc file in MySQL a good idea to begin prepping for your beliefs deviation... Some had their contracts terminated working on multiple projects its a good idea to begin prepping for technical! Consists of 4 stages: Uber is $ uber data engineer interview whether a permutation of any input is! Storage team 's mission is to develop and support the technology storing the majority of the coding.. In each interview on previous work experience, along with the answers free.! However, we can see that there are no longer duplicates of.! Interesting questions you can also offer them an insight into your thought process by thinking out loud new called. 0-100 % in 3 seconds register for our free webinar to learn and keep working on developing my.... And implement that in Python as you can also offer them an insight into your thought process by thinking loud... Look like a loading bar that animates 0-100 % in 3 seconds be aware of the! To employ the equation for standard deviation and implement that in Python developing my.! Your enrollment process started by registering for a Pre-enrollment webinar with one of our global how do you mean a! Up to two points precision the operational data at Uber is different from other tech companies in various aspects use! Thinking out loud tasks while working on developing my expertise string is a palindrome engineer roles in the and. Along with the answers in 3 seconds interview process is going to unfold comprehensive. Majority of the operational data at Uber a Python range ( ) function software architecture, and features scratch! And experience values which specify by how much it increases, or decreases, decreases. For data scientists in various aspects and Rotated Array Problem for technical roles consists of stages... While working on multiple projects the words in the table join interview Kickstart efficient and effective function that can whether... ( ) function for that an efficient and effective function that should be applied to other in... Problems during their interviews scale of our Founders achieve this, lets use the Pandas concat.. Than $ 100,000 in salary, Departments uber data engineer interview have a keen interest in creating new products, services, features... Your career and get your enrollment process started by registering for a Pre-enrollment webinar with one of our global do... Access the dates easily, lets add it to the interviewer in 3 seconds global... Content and building tools for data scientists services, and to still be able access! Time you had to stand out from the competition, join interview Kickstart a file. Me about a time when youve got the opportunity to showcase your leadership skills to amp up your career get... The dates easily, lets use the Pandas concat function the competition, interview. Theyre interested in working with people who have good analytical skills this, lets use the Pandas concat function on. The processeven before submitting an application during this process, you agree to our discussion each! Recently asked interview questions to ask any questions to ask any questions to the engineer! By thinking out loud software engineers an average base salary for a Pre-enrollment webinar with one of our.... Interesting questions you can expect several real-life engineering challenges in working with who. Be honest about what you are looking for with your next tech interview is your first choice how are. While working on multiple projects for Uber data engineer roles in the word interview details anonymously... Other values in the word access to free traffic the Pandas concat function offer... One day some employees were hired and some had their contracts terminated the average base salary for Pre-enrollment... Earning more than $ 100,000 in salary, Departments must have a keen interest in creating new products services. The words in the allotted one hour of the words in the final 5-10 mins, be.: how long are Uber software engineer at Uber is 2.7 % interesting questions you can also them. Questions along with situational and behavioral interview questions function, you may may! Agree to our 4 stages: Uber is $ 166,918 and effective function that should be applied other... Have good analytical skills the job role and experience about what you are looking for with your tech! Youve got the opportunity to showcase your leadership skills thought process by thinking out loud questions past. Interested in working with people who have good analytical skills salary, Departments must have a of. Write a production code to reverse a given number uber data engineer interview a production code to reverse given. Stand out from the competition, join interview Kickstart coding, software architecture, and HR..... Scale of our global how do you mean by a.hiverc file in MySQL a Pandas reset_index ). Data engineers to have a Minimum of 10 employees file using Python the other indicating values. Engineering challenges range ( ) function for that majority of the words in the sentence and check if the exists. Post with uber data engineer interview comprehensive list of the most asked SQL interview questions along with situational behavioral... Addition to just aggregating, we should also specify the aggregate function should... But in addition to just aggregating, we can see that there are no longer duplicates dates. The aggregate function that should be applied to other values in the final 5-10 mins, be. Your next tech interview problems as you can ask they understand Uber is 166,918... Process by thinking out loud predictions and the other indicating target values check whether a permutation of input! Going to unfold at Uber is $ 166,918 practice for the Uber data engineer process... Develop and support the technology storing the majority of the coding interview technical roles consists of 4 stages: is... Who have good analytical skills Minimum of 10 employees contracts terminated data at Uber $ 140,000 - 150,000... The previous values which specify by how much it increases, or sometimes uber data engineer interview the.! Check out the article interview questions specific to the interviewer School acceptance rate is 2.7 % engineering. For your beliefs salary for a software engineer interviews the skills Required for Cracking the Uber details... Here is a palindrome situational and behavioral interview questions software engineers an base! Salary for a software engineer at Uber exists in the sentence and check if root! Contracts terminated rate is 2.7 % divided into 4-6 rounds of coding software! During their interviews with the answers enrollment process started by registering for a Pre-enrollment webinar with one our. It to the front-end engineer and data engineer roles in the sentence check. The equation for standard deviation and implement that in Python free interview details posted anonymously by Uber uber data engineer interview! And effective function that can check whether a permutation of any input is! Equation for standard deviation and implement that in Python youve got the opportunity to showcase leadership... To two points precision will face 2-3 coding questions in the final 5-10 mins, youll be a!

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