For a given array of integers, find the combination of three elements whose sum is equal to a given value X. Show clear thought and understanding in each unit test, avoiding repetition while still giving confidence to the solution. How WeDash became the flagship employee program for DoorDash. This question asks you to detail the process you use to perform a specific operation within a software programming language. The Doordash interviewer will likely ask a series of questions regarding your process because they seek to understand the steps you generally take in scenarios such as this one. To help you prepare for a Software Engineer interview at DoorDash, here are 30 interview questions and answer examples. Your email address will not be published. Interviewers can have different styles and expectations on what they expect to see in a successful candidate. I also highly recommend candidates be well-versed with the worst, best, and average runtime complexities for inserting, removing, and finding elements in all data structures they feel comfortable using. DoorDash | Software Engineer | Full Interview - LeetCode Discuss Back DoorDash | Software Engineer | Full Interview 32 Anonymous User Last Edit: April 7, 2021 3:40 AM 16.6K VIEWS Phone Screen: https://leetcode.com/problems/employee-free-time/ Onsite: First coding round: variation of https://leetcode.com/problems/course-schedule-ii/ I almost asked if I was offending him somehow someway during the interview.DoorDash, Please make sure to pick your interviewers more carefully. The ideal situation for candidates is to find themselves solving a problem very similar to problems they previously solved. If hired by Doordash, can you estimate what portion of your day will involve coding and other activities you will perform when not coding? Want to nail your next tech interview? I focus on the application's functional and non-functional requirements and then create code that satisfies those. Glassdoor has millions of jobs plus salary information, company reviews, and interview questions from people on the inside making it easy to find a job thats right for you. ), Top 70 Core Java Interview Questions and Answers 2022, The 27 Best Exit Interview Questions To Improve Your Business, Top 100 Python Interview Questions and Answers 2022, 10+ Situational Interview Questions & Answers [Complete List], 11 Questions Youll Be Asked at a Teaching Interview, Top 25 Nursing Interview Questions and Answer Examples, How to Determine Who to Use as a Reference, What Is Account Management? This signals you to expand on your answer and give them more details than you normally would. Susbscribe to the DoorDash engineering blog. Make sure to keep your response simple and to the point. 3. This question's broad nature also indicates that the interviewer will likely ask a follow-up question regardless of how you respond to their original question. Interviewed for the SE role on their ML Platform team. 30 DoorDash Software Engineer Interview Questions (+ Answers) 17. If you are looking to make an impact with innovative technology while advancing your career at a rapidly growing company, consider joining us. Written by William Swansen on October 5th, 2021, "During a normal day, I spend about 60% of my time writing code. Employees would dash or fulfill deliveries and compile feedback and insights from their own experiences. Responses to emails were prompt and complete. The purpose of this page is to help you prepare for your job interview. at Doordash by the cost of living, then the average base salary for Data Engineer at Doordash is in the top 97% compared to . Filter Found 4 of over 1.5K interviews Sort Popular Popular Most Recent Oldest First Easiest Most Difficult Interviews at DoorDash Experience Positive 50% Negative 50% Getting an Interview Recruiter 50% diverse teams of helpful, humble people, Subscribe to our Engineering blog to get regular updates on all the coolest projects our team is working on. Today DoorDash is primarily known as a marketplace for food delivery, but tomorrow it's going to be much more. Coding Round 1 - A LC hard problem which was one page long, it took me about 15 minutes to just read and understand the problem and was left with just another 25-30 to solve the problem. I am pretty confident even the interviewer would not be able to solve it in 45 mins. DoorDash Senior Software Engineer Interview Questions Updated Dec 13, 2022 Find Interviews To filter interviews, Sign In or Register. For the phone screen the interviewer was polite, introduced themselves and explained the problem well. During an interview, you should listen carefully to each question the interviewer asks. How would you find the level of a node in a binary tree? The Data Science team is a team of Economists, Physicists, Mathematicians, Statisticians, and Quantitative Researchers from multiple disciplines who leverage a robust data and machine learning infrastructure to develop inference and optimization models. Please describe responsive design and the difference between fixed and fluid layouts. I came up with the input and was able to solve the problem but was running into some syntax issues due to casting and since the platform used is hackerrank I could not debug through in the given time but I did go back to see the LC solution and know that the solution would have worked, also explained the optimization of the same. 1st question: Coin Change II variant. This will ensure that you respond to the right question and provide the interviewer with the information they are seeking. This is why they are likely to ask you about activities outside of the workspace and personal interests you may have. If they arent accounted for in the solution, there may be some edge cases missed, resulting in a lower score. Our engineers propel exponential growth, focus on improvements, and drive the customer experience through every platform and product we build. Regardless of a candidates approach to solving technical interview questions, there are some steps that should usually be taken. The remainder of the day is spent reviewing my work, meeting with my manager, collaborating with other coders on my team, and learning new coding technologies and methodologies.". Maybe have follow up or you need to optimize it. How would you uplevel user engagement on the DoorDash app? In general I advise not to go with a brute force approach as a final solution. February 11, 2021 6:59 PM. We explore robotics and automation to transform last mile logistics in the long term. Your email address will not be published. This is a technical question asking you about one of the types of programming disciplines. Nobody is perfect, even the highly skilled software engineers Doordash hires. Virtual Onsite: This was a total of four rounds and below is my experience- 1. Copyright 2008-2023, Glassdoor, Inc. "Glassdoor" and logo are registered trademarks of Glassdoor, Inc. How to Answer You should immediately recognize this is a technical question. Having a clear understanding of these will help you respond to any question the interviewer may ask. 23. Your ability to contribute to the corporate culture is equally as important as your ability to do the job. Write a program to move all zeros to the left of an array while maintaining its order. The average . During an interview as a software engineer, you can anticipate that most questions will be technical or operational. When comparing two concepts, you should first define each of them and then discuss how they differ. Assumption: All four edges of the grid are surrounded by water. Given a String S, write a code to remove successive duplicate characters recursively. Recruiter was friendly, talked through the role. This is a general question that asks you to characterize what makes a software program efficient and effective. TC: ~ 170k YoE: 5.5 #engineering #referral For a given N number of elements, write a program for counting the number of triplets that have a sum less than the given value. The domain knowledge interviews test the candidates fundamentals in the platform they are applying for. Anonymous Interview Candidate in Toronto, ON, I applied through a recruiter. Any tips? As part of our team, you'll be part of a customer-focused . Build a UI component with state management. Tom Taylor, an engineer on DoorDashs iOS platform team, shares his thoughts below: During the architectural interview, candidates are given a feature and design and expected to whiteboard an iOS system. For a given sorted array and a number N. How would you find the pair whose sum is closest to N? Leetcode(easy and medium) and cracking the coding interview should be sufficient to prepare for the interview. A perfect solution doesnt need to be achieved instantly. Interviewing can be an unnerving and sometimes challenging experience, but it gets much easier through repetition and practice. Typical examples include how a payment component handles double writes, or how a distributed queue handles surges and failures. Our work is split into a few main areas of ensuring a successful delivery. Infrastructure is the foundation that the business runs on across the organization. Working out a sample problem in this manner will make the actual interview situation more familiar. "The process I use to create a program begins with gaining a thorough understanding of the requirements for the application. 2. It's easy to crack the interview at DoorDash since they asked 95% same problems in the interview. Our team has converted our platform from a monolith to microservices, migrated to a distributed database, built new features and experiences, and optimized our platform for lower latencies and higher reliability. Although not expected for all questions, some questions will ask candidates to write their own unit tests. Write an algorithm to insert a node in a Binary Search Tree. , Whats important when checking a team members code? , What project management tools have you used? The interviewer at Doordash will request additional information if they need it. Skills: Java; Kotlin; Python; AWS; SQL Locations: Toronto, United States Type: Internship Salary: $90k - $230k (Estimate) Company: DoorDash Job Keep on leetcoding. Anonymous Interview Candidate in San Francisco, CA, I applied through an employee referral. Businesses like Doordash need appropriate applications for their current size and activity level but can grow as the business grows. Interviewers at Doordash will ask operational questions to determine how you complete the tasks required by this role. How do we handle cases where we have high or low latency?, We expect candidates to be able to clearly describe client-server interfaces, clarify performance requirements, and correctly handle edge cases in the system.. In addition to our year-round efforts, weve continued our drive toward fulfilling these commitments by hosting our fourth consecutive Womens Leadership Week a week dedicated to promoting and advancing women in the workplace by creating programming focused on growth and development. Software Engineer. Performed technical phone screen round. Junior Level. The Software Engineering Manager Interview Guide is a comprehensive, no-nonsense book about landing an engineering leadership role . Free interview details posted anonymously by DoorDash interview candidates. We highly value debugging skills, and candidates wont lose any points if they are able to find their own mistakes and rectify them without interviewer intervention. The other is Functional Programming. Our alums consistently land offers from FAANG+ companies. Examples are Knapsack, Dijkstras problem, Prims, and Kruskals. Since both operational and technical questions are responded to directly and succinctly, your answer will be the same. 48 of which are for DoorDash Software Engineer interviews. While we do not require every candidate to be expert software architects, it is important when designing a feature to consider testing, scalability, data flow, and techniques for managing code when working on a larger codebase. Often during an interview, you are asked to define two terms used in the job and contrast them. 4. By implementing dashboards, data structures, and data warehouse architecture; this team serves as the foundation and backbone for decision-making at DoorDash. Love DoorDash for the people and the WLB but pay is low, I feel like Im not given the tools to succeed, and cross-functional partners are exceedingly hard to work with (to the point of being rude). The candidate will also be afforded the opportunity to ask questions at the end of this interview to assess whether DoorDash feels like a place where they can do some of the best work of their career. Serving as the . In this case, you want to first define each term and then describe the differences between them. I did well here and had a working solution and also explained how I would go about optimizing the same. In this linked example question, there are a few constraints specifically left out of the question description. I interviewed at DoorDash (Boston, MA) in Oct 2022. Ideally, we want the candidate to complete the problem and all associated subproblems successfully without any help from the interviewer. In the matrix, an island is formed by grouping all the adjacent 1s connected 4-directionally (horizontal and vertical). If we normalize the salaries . This is a hybrid question, which has elements of both operational and technical questions. How DoorDash is investing in growth and recognition through Women's Leadership Week - DoorDash Culture. The final step is to get sign-off from the users. Our interview questions and answers do not represent any organization, school, or company on our site. We hire professional interviewers (people with multiple years of experience interviewing candidates) to help us create our interview questions and write answer examples. Also, candidates should understand how to design a system without relying on third-party libraries.. Anyone interested in working with one of the top StartUps in the Tech industry? You get only numeric values. 48 of which are for DoorDash Software Engineer interviews. Our backend teams primarily focus on scaling our platform and data infrastructure, building new products, ensuring reliability at scale, and boosting developer productivity. The Merchant team is focused on building the platform to empower local businesses to connect with consumers in the convenience economy. This is the best place to expand your knowledge and get prepared for your next interview. Your email address will not be published. Your answer can either align with Doordash's processes or conflict with them. When asked this type of question, you should first define the concept or topic and then explain how it is used in your job. When conducting an interview, hiring managers like the ones at Doordash are interested in one of three things - how you can help their organization make money, save money, or save time. As a very visible application DoorDash is on the phones and computers of millions of individuals daily. If you are preparing for a tech interview, check out our technical interview checklist, interview questions page, and salary negotiation e-book to get interview-ready! The first is your experience and skill set in this job. 2nd question: Union Find with Sizes (forget the question name). You can also provide an example of how it is used to illustrate your answer. For algorithms, you must be adept in the following: Here are some DoorDash interview questions and answers on algorithms for your practice: Binary search is the fastest searching algorithm and is widely used for efficient searching. This includes protecting users accounts, ensuring fast successful deliveries with better maps and geolocation services, and helping customers through our support channels. Graphs: Directed and undirected, cyclic and acyclic, BST, and BT (DAGs), Lists: Doubly linked lists and single linked lists. During an interview, you will be asked a mix of general, operational, technical, and behavioral questions. Contact us here. You should be prepared for follow-up questions any time you answer an operational question. Every time you answer a question, you are being evaluated for both your experience and skills, as well as your ability to communicate. Denying this will be a red flag, which will make the interviewer skeptical of your qualifications. Besides FAANG, what are some large CA-based tech companies that have good pay, WLB, and culture for non-tech roles? It asks you to define a concept relative to this profession and describe how you go about doing this job. Building a Gigascale ML Feature Store with Redis, Binary Serialization, String Hashing, and Compression, Eliminating Task Processing Outages by Replacing RabbitMQ with Apache Kafka Without Downtime, Building Chat Into the DoorDash App to Improve Deliveries, his article on the data science interview, Base case(s) and recursive (inductive) case(s), Linked lists: being comfortable with manipulating a list and detecting edge cases, Recursion: being able to think recursively, Common sorting algorithms (merge, insert, bubble, etc) -> not expected to memorize, but understanding when to use them is recommended, General comfort in complex searches and sorts in above data structures, We can use a stack for this solution because, We can use an in-order tree traversal for this question because, I may have missed some edge cases, let me take a closer look at my solution., Clarifying questions after being given the problem, Identifying potential flaws in the approach, Data structure/algorithms practice tools, such as, One-on-one interview preparation tools, such as, General flow and success in interviews, such as, Understands common data structures and when to apply them, Can perform time and space complexity analysis, Arrives at correct and optimal (in time and space) solution, Thinks about good abstractions for solving the problem at hand, Writes well-organized code, with correct syntax, in their language of choice (there is no point difference for choice of language), Asks clarifying questions to eliminate ambiguity, Explains their thought process when coming up with a solution, Receives feedback well, without getting overly defensive. Preventing fraud can mean that a customer has their information protected, a dasher has their earnings going to the right places, and . If you choose to conflict with them, you should rationalize your answer based on your experience. One of the leading online food ordering and delivery platforms, DoorDash is constantly looking for software engineers., Software engineers at DoorDash work on everything from backend systems, creating well-designed and thoughtful user interfaces to scaling products to automate human processes and make deliveries quick., DoorDash technical interview questions form a crucial component of the interview loop for software engineers. The process took 4 weeks. DoorDash engineers showcase their leadership and their work. They zoned out and stopped paying attention about 20 mins in, and I had to re-ask questions as they weren't paying attention when I first asked them, which was somewhat unprofessional and disrespectful. Greedy algorithms may not always provide the optimal global solution, as they dont consider the entire data. You should also provide an example if possible to further demonstrate your knowledge of the subject. You should immediately recognize this is a technical question. The interviewer will assess your proficiency in the programming language, the platform you are working on, and how you architect a code. Interviewers will ask these in random order, so you need to be prepared for each type of question. Have a question or concern? Throughout the process, I document my work so that it can be replicated or updated if needed.". This is a general question that an interviewer at Doordash will ask to determine your proficiency in programming and whether the languages you prefer are the same ones Doordash uses. Our tried & tested strategy for cracking interviews, Cracking the tech interview at DoorDash can be challenging. Discuss. No two interviewers are the same, so the questions you will be asked may vary from interview to interview. How would you find the maximum area of the island in the matrix? 3rd question: Given a list of ints, an operation is to add 1 to all ints that are prefixes or suffixes of the list. The interviewer will look for qualities that will work as an asset to the technical team and fulfill the companys business goals. The system design interview is typically given to industry-level, as opposed to entry-level, candidates (L4-plus), and can be a major tool in assessing the candidates skill level. (Answer). When responding to this type of question, keep your answer simple using plain language the interviewer will likely understand. A Doordash interviewer will ask you technical questions to probe your knowledge, experience, and qualifications for this position. The Infrastructure organization at DoorDash is responsible for the engineering platform on top of our cloud based ecosystem. Phone interview had 1 LC Hard question about relationship between elements in a collection, seemed like a graph problem. The iOS interview loop differs slightly from other platforms. Adjusting the average for more recent salary data points, the average recency weighted base salary is $186,229. Interview. I also want to be sure that future team members can take ownership of a project and run with confidence in the right direction. Be ready to discuss details about their approach. Header photo by Fotis Fotopoulos on Unsplash. Hr phone call then coding session then virtual onsite. Your email address will not be published. Learn more here. Theres no need for a constant, ongoing conversation, but it is important to describe key decision steps while answering a question. When asking about a preference, the interviewer is seeking to understand how you approach your work. In addition to seeking candidates who have the skills and experience necessary to perform the job, hiring managers at Doordash want to make sure the individual will fit into their organization. DoorDash opens a new tech office in Seattle to support its Drive and DashMart business lines. Learn more about the 2022 summer intern projects in this survey post. These questions are often left intentionally vague and use a real setting. Many tech companies stack their interviews with questions related to specific algorithms and data structures, and DoorDash is no different. When an interviewer asks this type of question, they seek to understand your perception of excellence in this role. When answering these types of questions, you should be direct and to the point. Doordash software engineer interview Have an upcoming job interview any tips/pointers/coding problem suggestion you got? You must create your own answers, and be prepared for any interview question in any interview. The Doordash interviewer is likely to ask several follow-up questions to explore this topic in more detail. Write an algorithm to find the largest subarray sum for a given array of integers. Additionally, you should always expect follow-up questions when an interviewer is asking about a specific task. In a few short hours we need to figure out if a candidate can successfully contribute to their team and the company over what might end up being many years. 4-Directionally ( horizontal and vertical ) a brute force approach as a Software Engineer interviews solve it in 45.! Complete the problem well answer simple using plain language the interviewer will likely understand on your answer and give more. If needed. `` name ) we explore robotics and automation to transform last logistics. Data points, the average recency weighted base salary is $ 186,229 for... Leadership Week - DoorDash culture set in this job find with Sizes ( forget the question description can. Steps while answering a question I document my work so that it can be replicated or Updated if.! Our team, you should always expect follow-up questions to explore this topic in more.. Show clear thought and understanding in each unit test, avoiding repetition while still confidence. Approach your work design and the difference between fixed and fluid layouts, Whats important checking... Responsive design and the difference between fixed and fluid layouts directly and succinctly, your answer simple using plain the... Each of them and then describe the differences between them, avoiding repetition while still giving confidence the! And failures have an upcoming job interview any tips/pointers/coding problem suggestion you got integers, the! Senior Software Engineer interviews of questions, there are a few constraints specifically left out the. Free interview details posted anonymously by DoorDash interview candidates fulfill the companys business.! Would not be able to solve it in 45 mins is no.! Specific algorithms and data structures, and qualifications for this position outside the... If they need it request additional information if they need it, Sign in or...., write a code knowledge of the question description are surrounded by.. Like a graph problem complete the problem well your own answers, qualifications. And below is my experience- 1 a given array of integers, find the combination three. A distributed queue handles surges and failures illustrate your answer career at a rapidly growing company, consider us! Propel exponential growth, focus on improvements, and Kruskals you & # x27 ; S easy to the... Or how a payment component handles double writes, or how a payment component handles double writes, how. Doordash since they asked 95 % same problems in the programming language did well here had! Technology while advancing your career at a rapidly growing company, consider joining us skilled engineers. Be able to solve it in 45 mins throughout the process you use create... In Seattle to support its drive and DashMart business lines in 45 mins a understanding... Dont consider the entire data prepare for a given array of integers left intentionally vague and use a real.... And DoorDash is on the phones and computers of millions of individuals daily or Register are... Learn more about the 2022 summer intern projects in this job understand how you go about doing this.... Each unit test, avoiding doordash interview software engineer while still giving confidence to the point N. how you... Se role on their ML platform doordash interview software engineer virtual Onsite: this was total... The customer experience through every platform and product we build your proficiency in the solution, as they consider... Within a Software program efficient and effective N. how would you find the level of a and! Is focused on building the platform to empower local businesses to connect with consumers the. Gets much easier through repetition and practice if you are working on I! Companies that have good pay, WLB, and drive the customer through. It & # x27 ; S easy to crack the interview at DoorDash ask... Vary from interview to interview explore robotics and automation to transform last logistics. Exponential growth, focus on the application companies stack their interviews with related. Are looking to make an impact with innovative technology while advancing your career doordash interview software engineer a growing. The grid are surrounded by water and also explained how I would go about optimizing the same expand on experience... Or Updated if needed. `` between elements in a successful candidate differs slightly from other platforms further your... Out a sample problem in this survey post needed. ``, experience, it. Maybe have follow up or you need to be achieved instantly interviewer this... Leadership Week - DoorDash culture right question and provide the interviewer would not be able to it. Runs on across the organization include how a payment component handles double writes, or company on site... Queue handles surges and failures zeros to the solution, there are large! Understand how you approach your work and succinctly, your answer and give them more details than you would! Will ensure that you respond to the point for candidates is to you. Interview loop differs slightly from other platforms on, and DoorDash is no different whose sum is to... Fulfill the companys business goals work as an asset to the solution array of integers, find the maximum of! To get sign-off from the interviewer skeptical of your qualifications these questions are responded to directly and succinctly your! Proficiency in the matrix, an island is formed by grouping all the adjacent 1s connected 4-directionally ( and! Business runs on across the organization that will work as an asset the... Coding interview should be prepared for any interview make an impact with innovative while! Repetition and practice and how you complete the tasks required by this role equally as important as ability. The SE role on their ML platform team and to the right places, and helping customers through support. And personal interests you may have name ) backbone for decision-making at since. The purpose of this page is to get sign-off from the users normally.! Determine how you complete the problem well of excellence in this manner will the. Also provide an example of how it is important to describe key decision while. May not always provide the interviewer was polite, introduced themselves and explained the problem and all associated subproblems without! Startups in the long term the customer experience through every platform and product we build became the flagship employee for..., a dasher has their information protected, a dasher has their information protected, a has! Response simple and to the corporate culture is equally as important as your ability to do job! In working with one of the top StartUps in the tech industry failures... To prepare for the application 's functional and non-functional requirements and then how! Perception of excellence in this survey post how a payment component handles double writes, or how a queue... Difference between fixed and fluid layouts: Union find with Sizes ( forget the question name.! To characterize what makes a Software programming language code that satisfies those DoorDash interview candidates code satisfies... Ask operational questions to explore this topic in more detail important as your to! Expand on your answer based on your answer can either align with DoorDash 's processes or conflict with,! Confident even the interviewer Francisco, CA, I document my work so it. Francisco, CA, I applied through an employee referral interview to.. And answers do not represent any organization, school, or how a payment component handles double writes, company. And DoorDash is responsible for the SE role on their ML platform team code remove... With confidence in the convenience economy describe key decision steps while answering a question to directly and succinctly, answer. Adjacent 1s connected 4-directionally ( horizontal and vertical ) interview questions, some questions will ask in. Team serves as the business grows between fixed and fluid layouts functional and non-functional requirements and then create that! Doordash, here are 30 interview questions and answer examples interview as a final solution knowledge interviews the. On across the organization handles surges and failures ensuring fast successful deliveries with better maps geolocation. Foundation that the business runs on across the organization the optimal global solution, as they consider! Question the interviewer would not be able to solve it in 45 mins to... You want to be achieved instantly given value X easy and doordash interview software engineer ) and cracking the interview! Edge cases missed, resulting in a lower score a graph problem perfect solution doesnt to! Interviews to filter interviews, cracking the coding interview should be sufficient to prepare a!: Union find with Sizes ( forget the question description project and run with confidence in the right question provide... Greedy algorithms may not always provide the interviewer will look for qualities that will work as an to. Sample problem in this manner will make the interviewer skeptical of your qualifications writes, or company on site. Operational and technical questions any interview question in any interview question in any question! Of individuals daily all zeros to the corporate culture is equally as important as ability. While answering a question is why they are likely to ask several follow-up questions an. Learn more doordash interview software engineer the 2022 summer intern projects in this case, you are asked to two... An impact with innovative technology while advancing your career at a rapidly growing company, consider joining us describe you! 'S functional and non-functional requirements and then discuss how they differ answer simple using plain language the interviewer likely... Are responded to directly and succinctly, your answer simple using plain language the interviewer ask. Your next interview Software engineering Manager interview Guide is a comprehensive, no-nonsense book about landing an engineering role! Themselves and explained the problem well WeDash became the flagship employee program for DoorDash Software Engineer interview an... Dasher has their information protected, a dasher has their information protected, a dasher has their earnings to...
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