DoorDash Data Engineer Interview Questions

Review this list of 6 DoorDash Data Engineer interview questions and answers verified by hiring managers and candidates.

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Asked at DoorDash, Accenture, ADP + 37 more • 2 months ago
Tell me about yourself.
Data Engineer
Behavioral
+19 more
126 answers
+118
"As you know, this is the most important question for any interview. Here is a structure I like to follow, Start with 'I'm currently a SDE/PM/TPM etc with XYZ company.... ' Mention how you got into PM/TPM/SDE field (explaining your journey) Mention 1 or 2 accomplishments Mention what you do outside work (blogging, volunteer etc) Share why are you looking for a new role Ask the interviewer if they have any questions or will like to dive deep into any of your experience"
Bipin R. - "As you know, this is the most important question for any interview. Here is a structure I like to follow, Start with 'I'm currently a SDE/PM/TPM etc with XYZ company.... ' Mention how you got into PM/TPM/SDE field (explaining your journey) Mention 1 or 2 accomplishments Mention what you do outside work (blogging, volunteer etc) Share why are you looking for a new role Ask the interviewer if they have any questions or will like to dive deep into any of your experience"See full answer
Data Engineer
Behavioral
+19 more
Asked at DoorDash, Accenture, Amazon + 19 more • 2 months ago
Tell me about your past projects.
Data Engineer
Behavioral
+10 more
4 answers
"For any project based questions, it is important to structure your response clearly, showcasing your thought process, technical skills, problem-solving abilities, and how your work added value. Besides the STAR method, you can also use this kind of framework: 1. Start by selecting a relevant project (related to the role) Give the project background and what specific problem it solved. 2. Align the project's objective and your role Be specific about your role: were you the le"
Malay K. - "For any project based questions, it is important to structure your response clearly, showcasing your thought process, technical skills, problem-solving abilities, and how your work added value. Besides the STAR method, you can also use this kind of framework: 1. Start by selecting a relevant project (related to the role) Give the project background and what specific problem it solved. 2. Align the project's objective and your role Be specific about your role: were you the le"See full answer
Data Engineer
Behavioral
+10 more
Asked at DoorDash, Databricks • a year ago
Design a database schema for a fitness app.
Data Engineer
Data Modeling
3 answers
"user table - with userid, username, email, phonenumber, accountcreateddate exercises table - types of exercises - indoor walk, outdoor walk, running, stairs, cycling, swimming etc - exerciseid, exercisetype date table - date, day, month, year - with dateid Session table - userid, sessiondateid(linked to dateid in date table), exerciseid, distance covered, calories spent, starttime, endtime "
Anonymous Anteater - "user table - with userid, username, email, phonenumber, accountcreateddate exercises table - types of exercises - indoor walk, outdoor walk, running, stairs, cycling, swimming etc - exerciseid, exercisetype date table - date, day, month, year - with dateid Session table - userid, sessiondateid(linked to dateid in date table), exerciseid, distance covered, calories spent, starttime, endtime "See full answer
Data Engineer
Data Modeling
Asked at DoorDash • a year ago
On DoorDash, there are missing item and wrong item issues for deliveries. How would you analyze each of them?
Data Engineer
Statistics & Experimentation
1 answer
"Missing Item - User ordered multiple items, few items are missing Wrong Item - Entire order is wrong / there are items in the order that were never ordered How is this measured ? CSAT Missing Items Wrong Items Step 1 : Collect data on orders that reported missing / wrong items. Dive deep to understand if the problem is isolated to a specific metro/zip code/restaurant type (say fast food vs fine dine), time of day (lunch vs dinner), tenure of the courier on th"
Saurabh K. - "Missing Item - User ordered multiple items, few items are missing Wrong Item - Entire order is wrong / there are items in the order that were never ordered How is this measured ? CSAT Missing Items Wrong Items Step 1 : Collect data on orders that reported missing / wrong items. Dive deep to understand if the problem is isolated to a specific metro/zip code/restaurant type (say fast food vs fine dine), time of day (lunch vs dinner), tenure of the courier on th"See full answer
Data Engineer
Statistics & Experimentation
Asked at DoorDash • a year ago
You're a PM at a food delivery app where conversion rates have declined over the past week. How would you investigate the causes? (Conversion: From users browsing to placing orders.)
Data Engineer
Behavioral
+2 more
Add answer
Data Engineer
Behavioral
+2 more

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Asked at DoorDash • a year ago
Given an array of task durations (in minutes), return the pairs of tasks that can be completed within 60 minutes. For example, for [1, 43, 20, 59, 30, 30], return [[0, 3], [4, 5]].
Data Engineer
Data Structures & Algorithms
+1 more
2 answers
"It's a 2Sum question with duplicate array elements."
Anzhe M. - "It's a 2Sum question with duplicate array elements."See full answer
Data Engineer
Data Structures & Algorithms
+1 more