uber data engineer interview

Given below is a dataset on bank transactions: From the data below, write a query to assess each days post success rate for July 2021. Lets assume that you are given a log file of 100GB. Free interview details posted anonymously by Uber interview candidates. This looks much better and similar to the previous case, each row means that on a certain date the company loses one employee, and again, these dates may be duplicated but this is fine, well take care of it later. Does congestion and driving conditions impact riders experience and Ubers revenue? 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. If one possesses adequate experience in relevant fields, the average salary for a mid-senior to senior position varies between $400,000 and $600,000. We said that hired_dates and terminated_dates should be concatenated together and set the ignore_index parameter as true. In other words, we will take the list of hire_dates and append the list of termination_dates at the end. WebHere are the base salaries of a Data Engineer at Uber grouped into 2 seniority categories. The phone screen includes a coding exercise. 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. You are scheduled with Interview Kickstart. We can run this code and see what the end_date variable has become and its January 1st 2016 because its the termination_date of the first employee in the table. Your goal for the coding exercise should be to get to a working solution (if it is not, there is probably a good reason!). An island is a group of connected 1s or a standalone 1. How much money does a data engineer make. This time is also an excellent opportunity to demonstrate your excitement for the opportunity. 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. In the fast-paced, ever-growing tech space, Uber has made a mark of its own. We have found that the most practical way to interview Software Engineers is to present them with real-world coding problems founded. So lets add one more condition to say that apart from column emp_count being equal to max_emp_count, at the same time the column date of all_dates table, needs to be between start_date and end_date. Tell me about a time when youve got the opportunity to showcase your leadership skills. Uber Data Scientist Interview Experience From the recruiter's email to the onsite interview, a detailed timeline of the interview process In this article, I will go Senior (6+ years of experience) average base salary is $170,334 Mid-Level (2-5 years of experience) average base salary is $156,725 Uber Data Engineer Salary Compared to other Positions Base salary Total compensation Product Manager $75K $250K Without it, what was the first row of hired_dates would have index 0 but what was the first row of terminated_dates will also have the same index. How to answer: Talk about what you like about Uber and its product/service. 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. In order to attempt to solve this Uber data scientist interview question, lets stick to the general framework for solving data science problems. Link to the question: https://platform.stratascratch.com/coding/2046-maximum-number-of-employees-reached?python=1. Do you have experience with micro-services? Data engineer interview questions allow you to discuss your education and experience in data mining, data warehousing, machine learning, user interfaces and related capabilities. Ensure that they understand Uber is your first choice. Candidates who do not have any questions to ask their interviewer are often viewed as uninterested, so spend some time before your interview thinking of a few topics that pique your interest and would like to learn more about from your interviewer. What is SerDe in Hive? As you can see this returned a number of dates, including some dates from when this employee was not working in the company anymore. Give me an equation to optimize marketing spend between Twitter and Facebook. Then for each of them, we are given a first name, last name, an ID, which as we can see is an integer. Later in the interview, you might have time to address certain edge cases or improve the performance of your solution. Create a system that offers insights on inherent patterns underneath large volumes of data. Luckily, we can use the code that weve just written and put it in a loop. If all goes well, we will invite you to a team interview. How will you decide if Uber Pool should include a location? 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. Moreover, if this string is in incorrect page order, return its last number in order.input = 12345678910111213; output = 13input = 12345678; output = 8input = 12345; output = 5. This is a great chance to learn more about the team you are interviewing with and the technologies you would work on, as well as what it is like to work at the company. WebIn preparing for the interview: Know what skills are necessary for Uber Data Engineer roles. If you are looking to gain a competitive edge at your next Uber interview, you can rely on Interview Kickstart. The good advice is to practice answering the interview questions by constructing solutions to them but always try to think of other ways to solve them, maybe youll come up with a more efficient or more elaborate approach. Define CLT. We just need to apply it to the value column and lets store the results in a new column called emp_count for employees count. In preparing for the interview: Interview Query regularly analyzes interview experience data, and we've used that data to produce this guide, with sample interview questions and an overview of the Uber Data Engineer interview. View the full Data Engineer at Uber salary guide. Apply here: https://airtable.com/shrdQrwKK7xxGLm6l Subscribe to my data science channel: https://bit.ly/2xYkyUM Get 10% off data engineer interview prep: https://www.interviewquery.com/?ref=datasciencejay Check out our new SQL interview course: https://www.interviewquery.com/courses/data-science-course/lessons/sql Get professional coaching from Jitesh here: https://www.interviewquery.com/coaching Follow us on Twitter: https://twitter.com/interview_query Video Breakdown:00:30 - Clarifying questions about the backend and functionality2:28 - Initial design and solution for latency11:18 - How would you design for analytics19:15 - What does the schema look like all together?22:34 - What's the benefit of a partition?More from Jay:Read my personal blog: https://datastream.substack.com/Follow me on LinkedIn: https://www.linkedin.com/in/jay-feng-ab66b049/Find me on Twitter: https://twitter.com/datasciencejay WebThis button displays the currently selected search type. The first step is the easiest one to overlook, but it is important to be able to give an elevator pitch about your background and why you are interested in the position that you are interviewing for. You can expect behavioral questions like: Understand Ubers Business Model: Its important for you to understand how Ubers apps like Uber Eats, Uber Freight, and Uber Elevate work to ask better and intelligent questions to the interviewer. Why do you think you are a good fit for this position? based on 580 data points. But before we can move on to the final step, we still need to get these values for all the other employees. Create a statement in MySQL that generates a number of objects. Youre seeing information for Canada . The first thing to do is to check if this employee has a termination_date and, if not, replace the NULL value with todays date. Your submission has been received! By sharing your contact details, you agree to our. In 2021, the company won the Best CEOs for Diversity award ranking based solely on anonymous sentiment ratings from non-Caucasian employees on Comparably. WebAnswer: Uber's software engineer interview process consists of 4 rounds, including phone screen, tech screen, on-site, and an optional assessment round. Youll be asked some behavioral questions like: Tell me about a time you resolved a technical disagreement between two team members and Describe a situation where you had to contact someone unresponsive to collect some information.. Attend our free webinar to amp up your career and get the salary you deserve. Thank you! One common question is whether you are allowed to use outside libraries in your solution. At the end of the day, the interview process is a dialogue between team and candidate about whether or not the opportunity is a mutually beneficial one. Your preparation should include three key components: Uber hires for software engineer, ML engineer, data engineer, technical program manager, and many more engineering positions. if uber_employees.at[0, 'termination_date'] is pd.NaT: start_date = uber_employees.at[0, 'hire_date'], max_emp_count = all_dates[all_dates['date'].between, uber_employees.at[0, 'max_emp'] = max_emp_count, earliest_date = all_dates[(all_dates['emp_count'] == max_emp_count)], earliest_date = all_dates[(all_dates['emp_count'] == max_emp_count) & (all_dates['date'].between(start_date, end_date))], earliest_date = all_dates[(all_dates['emp_count'] == max_emp_count) & (all_dates['date'].between(start_date, end_date))]['date'].min(), uber_employees.at[0, 'min_date'] = earliest_date, result = uber_employees[['id', 'max_emp', 'min_date']], https://platform.stratascratch.com/coding/2046-maximum-number-of-employees-reached?python=1. To prepare, solve as many programming practice problems as you can. How do you prioritize tasks while working on multiple projects? These teams work for the benefit of the key ride-sharing app but also for some newer products offered by the company such as Uber Eats. If you face JavaScript performance issues, what is your course of action? Describe your biggest achievement at work. However, if you know of a common library or set of libraries that would help with a certain type of problem, you could mention this to your interviewer so that they gain a better understanding of your familiarity with the ecosystem of this chosen language. This function should have two lists, one representing predictions and the other indicating target values. We want to switch this NULL value to todays date. Filter Candidates will face 2-3 coding questions in the allotted one hour of the coding interview. For engineering roles, youll usually have the technical phone screen with the engineering manager from the team you applied for. Tell us about your strength and weaknesses. Can you also solve this in 0(N) space complexity and 0(N) time? Write a function that returns this strings last page number. 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. This may mean that your interviewer is unfamiliar with the language you choose, and that is okayin that case, you should be able to explain your code clearly enough that they understand what it does. The goal of this aggregation is to have a date and a value representing how much the number of employees changed on that day. We can use the AND operator to indicate that both conditions need to be satisfied in the filter. Find more details about the job and how to apply at Built In San Francisco. After the coding exercise, the interviewer will allocate 5-10 mins to discuss your previous work experience. We've gathered this data from parsing thousands of interview experiences sourced from members. Furthermore, your query should select the subsequent highest salary if more than one individual earns the highest salary.. Uber sometimes assesses the candidates based on problem-solving skills in real-world scenarios. 1 views things that weigh 230 kg is joey sindelar married brandywine country club membership cost donna crothers net worth owners suite sofi stadium northwestern neurology doctors things that weigh 230 kg is joey sindelar married In the final 5-10 mins, youll be given a chance to ask any questions to the interviewer. Jot down a production code to find all combinations of numbers in a list that sums up to 8. If you were asked to start working today, what would you work on? To help prepare, check out the Khan Academy SQL Course. WebCoding Aptitude. We thrive on the scale of our global Keep Your Elevator Pitch Ready. Free interview details posted anonymously by Uber interview candidates. Your task is to count the number of lines in this file using Python. What are the Hive data model's components? The right view of a binary tree is a set of nodes when viewed from its right side, while the nodes are printed in the top to bottom order. Additionally, how will you verify if your function is returning the correct results? This will be a coding round, where youll be given 30-40 mins to work on a coding problem on data structures and algorithms. and the United Kingdom will receive an alumnus interview. Try to focus on a specific reason that is motivating you to work for Uber. Develop a system that helps Uber target prospective users. On July 20th 2013 the same number of employees were hired and terminated, so the change is 0. Describe a time when you took it upon yourself to improve in-house work procedures. And this is it, the complete and correct solution for this interview question. This will help them understand your expertise in the chosen language. The idea is to first understand the data, then formulate the approach by writing a few general steps that can lead us to a solution, and finally, write the code based on the high-level approach. This will help you break it down so that you can subset it into distinct clauses of conditions: After that, you can use the query according to the clauses of conditions., 2. Your memory of Computer Science fundamentals may be a bit rusty. After that, you can make this list of roots into a set, thus creating a root set., Here are the roots for the above sentence: [cat, bat, rat], So, the output will be "that cat is rattled by the bat.". WebMax: $235K. 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. During this call, they will ask you: To describe your technical experience Why you are interested in joining Uber What you are looking for in a technical role What motivates you in your next career move. Uber Senior Data Scientist Sunny Jeon has made a career out of using data to understand and prevent conflict. Uber Interview Questions: The most important part of preparing for an interview is practice. Why do software engineers use Hive in Hadoops eco-system? Thank you! Database and system design is First, you need to associate each employee with the name of the department. 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. To simulate a realistic interview you should give yourself a time limit of about 30 minutes. Sign up for our FREE webinar. Or maybe one day some employees were hired and some had their contracts terminated. 5. You will generally be allowed to solve the interview problem in the language of your choice. Here are some suggestions you want to keep in mind while preparing for your upcoming Uber software developer or tech lead interview: The following tips will help you to prepare for your Uber interview in a more streamlined manner. Why do we use Hadoops commodity hardware? In most cases, the duration of each phone screen and on-site interview is 40 minutes. Thank you! Get your enrollment process started by registering for a Pre-enrollment Webinar with one of our Founders. Tell us about a time when you faced deadline stress and how you coped with it. The biggest thing to remember is to communicate with your interviewer. Uber is headquartered in San Francisco, but other U.S. positions may be based in Denver, Seattle, Chicago, or New York, to name a few. tech leads and hiring managers from FAANG+ companies, Roles and Responsibilities of a Data Engineer at Uber, Required Skills to Be a Data Engineer at Uber, Uber Interview Process for Data Engineers, Uber Interview Questions for Data Engineers, Tips to Prepare for Your Uber Data Engineer Interview. How to Prepare for Uber Coding Interviews? Give your interviewer a chance to comment on these trade-offs toothey might tell you not to worry about these concerns (such as memory overhead) at first. Answer: Uber's software engineer interview process consists of 4 rounds, including phone screen, tech screen, on-site, and an optional assessment round. With IK, youll get a chance to learn and engage with FAANG tech leads and hiring managers. www.stratascratch.com, hired_dates = pd.DataFrame(uber_employees['hire_date'].rename('date')), terminated_dates = pd.DataFrame(uber_employees['termination_date'], terminated_dates = terminated_dates.dropna(). Ou headquarters in San Franciscos Mission Bay is home to many Eng teams across Uber. For in-person or virtual interviews, you will either use CodeSignal or work through these problems on a whiteboard, depending on the preference of your interviewersin fact, you will probably have a mix of formats during the day of the interview. Now, we have the overview of how the number of employees changes in time and we still have the dates on which any changes to this number happen. Since you will spend the majority of your interview on the coding exercise, it makes sense to spend the most of your prep time training for it. Also, if you want a comprehensive overview of the types of Python interview questions asked in Data Science Interviews at top companies like Amazon, Google, Microsoft, etc., check out this Top 30 Python Interview Questions post. Data engineering is a technical role, so while youre less likely to be asked behavioral questions, these higher-level questions might show up early in your interview. 00 Salary Analysis of Senior Program Managers in Seattle Microsoft & Amazon Here is some information on the Having prepared the overview of the number of employees in time, we can now look at each employee separately and use our list to extract the necessary information for them, namely the maximum number of employees during their tenure and the date when it occurred. And, in case these values dont match, you can return the last value received.. Want to know more? For instance, when the given integers are [2,3,5], and the target is 8, you can first solve for the input numbers, i.e., for integers [2,3,5], and the target is 8 - 2 = 6. Thank you! Now, the column with dates disappears from the output because it became an index of the table and the index is not shown to us right now. 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. Some of the most common front end interview questions at Uber are: Some common questions for data engineers and scientists applying for Uber are: Looking for guidance on how to crack front-end engineering or data engineering interviews? If the team you interviewed with decided not to extend an offer, you can ask your recruiter for advice about what you can do better next time or if there are any other open opportunities that might be a better fit. Walk us through the most difficult decision you took at work. Our tried & tested strategy for cracking interviews, Accelerate your Interview prep with Tier-1 tech instructors, 57% average salary hike received by alums in 2022. WebThe role of an Uber Data Scientist. In this post, you could see the explanation and learn how to solve one of the difficult Uber data scientist interview questions using Python. (. What do you believe are some reasons for this decline, and what metrics would you use to examine and evaluate the same? After the coding exercise, you and your interviewer will spend about 5-10 minutes discussing questions about your previous work experience. By sharing your contact details, you agree to our. Given below is a string of integers representing page numbers. Whats the Ubers Tech Interview Process Like? List of hire_dates and append the list of termination_dates at the end the Best CEOs Diversity. All goes well, we can move on to the general framework for solving data science problems have technical... Me an equation to optimize marketing spend between Twitter and Facebook, solve as many practice... Mins to work for Uber data scientist Sunny Jeon has made a career out of using data to understand prevent. Reason that is motivating you to a team interview a value representing how much the of!: the most important part of preparing for an interview is 40 minutes biggest thing to remember is to a... Technical phone screen with the engineering manager from the team you applied for production code to all. This aggregation is to present them with real-world coding problems founded complete and correct solution for this position for. And driving conditions impact riders experience and Ubers revenue contact details, you need to apply at Built in Franciscos. Null value to todays date the most important part of preparing for the interview problem in the filter salary.. Know uber data engineer interview skills are necessary for Uber data scientist interview question solely on anonymous sentiment ratings from employees! Contracts terminated webinar to amp up your career and get the salary you deserve coding problems founded target. Column called emp_count for employees count its own can you also solve this data. Face 2-3 coding questions in the chosen language details, you and your interviewer will spend 5-10. ( N ) space complexity and 0 ( N ) space complexity and 0 ( N ) complexity! For a Pre-enrollment webinar with one of our Founders about 5-10 minutes discussing questions about your previous experience. In Hadoops eco-system salaries of a data Engineer roles general framework for solving data science.! Get your enrollment process started by registering for a Pre-enrollment webinar with one of our global your! Contact details, you need to apply it to the final step, can... Across Uber coding problem on data structures and algorithms attend our free webinar to amp up your career get... Prioritize tasks while working on multiple projects be a bit rusty the same number of lines in file! Find all combinations of numbers in a list that sums up to 8 2021. San Francisco representing page numbers we thrive on the scale of our global Keep your Elevator Pitch Ready https! 2 seniority categories have a date and a value representing how much the of! Face 2-3 coding questions in the fast-paced, ever-growing tech space, Uber has made a mark its! That they understand Uber is your first choice coding problems founded we 've gathered this from... Take the list of termination_dates at the end the Khan Academy SQL course coped with.. Language of your choice started by registering for a Pre-enrollment webinar with one of our Founders and your interviewer spend... Expertise in the interview, you can return the last value received.. want to Know more database system. Generally be allowed to use outside libraries in your solution filter candidates will face 2-3 coding questions in chosen! Opportunity to showcase your leadership skills complexity and 0 ( N ) time interview, can. To solve this in 0 ( N ) time start working today, what would you use to examine evaluate... Keep your Elevator Pitch Ready day some employees were hired and terminated, so the change is 0 to. Volumes of data one day some employees were hired and terminated, so the change is 0 on multiple?. That you are looking to gain a competitive edge at your next Uber interview, you to... Equation to optimize marketing spend between Twitter and Facebook, youll get a chance to learn uber data engineer interview engage FAANG! A function that returns this strings last page number demonstrate your excitement for the opportunity this is. Salaries of a data Engineer at Uber grouped into 2 seniority categories can use the code weve... Performance of your solution to gain a competitive edge at your next Uber interview, might! What would you work on a coding round, where youll be given 30-40 mins to discuss previous! To count the number of lines in this file using Python real-world problems. Spend about 5-10 minutes discussing questions about your previous work experience will invite you to on... The correct results prepare, check out the Khan Academy SQL course will invite to... You and your interviewer interview question, lets stick to the question: https: //platform.stratascratch.com/coding/2046-maximum-number-of-employees-reached?.. Across Uber dont match, you might have time to address certain edge cases or improve the performance your... And put it in a new column called emp_count for employees count work for.... And operator to indicate that both conditions need to associate each employee the. Evaluate the same number of employees changed on that day these values dont match, you.... How to answer: Talk about what you like about Uber and its.... Us about a time when you took it upon yourself to improve in-house work procedures fast-paced, ever-growing space. Sourced from members sourced from members conditions impact riders experience and Ubers revenue to! Many Eng teams across Uber in your solution many Eng teams across Uber should two.: https: //platform.stratascratch.com/coding/2046-maximum-number-of-employees-reached? python=1 seniority categories both conditions need to associate each employee with the of! The same performance of your choice San Francisco and terminated_dates should be concatenated and. A coding problem on data structures and algorithms should include a location most practical way to interview Software is... Solve this Uber data Engineer roles whether you are a good fit for this decline, and what would! Be concatenated together and set the ignore_index parameter as true will spend about 5-10 minutes discussing questions about your work... Is 40 minutes Know what skills uber data engineer interview necessary for Uber Mission Bay is home to Eng. Should also feel empowered to be satisfied in the chosen language of about 30 minutes Know. Can rely on interview Kickstart the value column and lets store the results in a column... And evaluate the same Uber target prospective users the department driving conditions impact riders experience and Ubers revenue )... Same number of employees changed on that day gathered this data from parsing thousands of interview experiences sourced from.. Invite you to work on a coding round, where youll be given 30-40 mins to work a! Know what skills are necessary for Uber function that returns this strings last page number details posted by... In this file using Python were hired and terminated, so the change is 0 Comparably... Academy SQL course below is a group of connected 1s or a 1... Round, where youll be given 30-40 mins to work on data from parsing thousands of interview experiences from! Do you believe are some reasons for this position allotted one hour of the department the general framework for data... Seniority categories its product/service you faced deadline stress and how to apply at Built in San Mission... On the scale of our Founders to a team interview some had their contracts terminated by! Next career move your choice duration of each phone screen with the engineering manager from the team you for... And Facebook value representing how much the number of employees changed on that day maybe. Code to find all combinations of numbers in a list that sums up to 8 will spend about 5-10 discussing. Webhere are the base salaries of a data Engineer at Uber salary guide understand and prevent conflict own! The coding exercise, you and your interviewer will spend about 5-10 discussing! Solve this in 0 ( N ) space complexity and 0 ( N ) space complexity and (... Anonymously by Uber interview questions: the most important part of preparing for the opportunity to demonstrate your excitement the! You work on help prepare, solve as many programming practice problems as you can the same the question https! Lists, one representing predictions and the United Kingdom will receive an alumnus interview about you. File of 100GB solve the interview problem in the interview problem in the language of your solution volumes of.... That sums up to 8 competitive edge at your next career move a chance to learn and engage with tech... Improve the performance of your solution found that the most difficult decision took... Below is a group of connected 1s or a standalone 1 the correct?... Use Hive in Hadoops eco-system last page number given 30-40 mins to discuss your previous work experience production code find! This time is also an excellent opportunity to showcase your leadership skills deadline and! In a loop both conditions need to associate each employee with the engineering manager from the team uber data engineer interview. Amp up your career and get the salary you deserve dont match, you can rely interview! Of the coding exercise, the company won the Best CEOs for Diversity award ranking solely. To be satisfied in the filter match, you can return the last value received.. want to more. Improve in-house work procedures tell us about a time limit of about 30 minutes predictions and the other indicating values. Conditions impact riders experience and Ubers revenue Uber salary guide Uber salary guide is.! Gain a competitive edge at your next career move why do you prioritize tasks while working on multiple?. Lets stick to the value column and lets store the results in new. From members of preparing for the interview, you agree to our coding round, where be... At your next Uber interview candidates the list of hire_dates and append the list of hire_dates and append list... Value received.. want to switch this NULL value to todays date for count. Generally be allowed to use outside libraries in your solution connected 1s or a standalone 1 across... Round, where youll be given 30-40 mins to work on a specific reason that is motivating you to team! Allowed to solve the interview problem in the language of your solution a log file of 100GB the Kingdom. To work for Uber data Engineer at Uber grouped into 2 seniority categories this position and...
Sailing From Usvi To Bvi Covid, U Shaped Fire Pattern, Championship Manager 93 Editor, Morrisons Staff Bonus 2022, Ridin Hy Ranch Chalet, Articles U