Robinhood VO Interview Questions|Including coding + system design + project follow-up questions.

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Robinhood Robinhood is a very popular FinTech company in recent years, with fierce competition and high requirements for technical positions. Recently, some students in our Programhelp team just finished the technical interview of Robinhood, and the whole process pays great attention to the candidate's basic skills and project combat thinking. Today, we are going to restore the latest VO interview questions + experience summary in detail, so as to give a little reference to the students who are preparing for Robinhood!

Robinhood Latest VO Interview Questions|Including coding + system design + project follow-up questions.

Robinhood Interview Process Overview (SWE Positions)

The overall process for Software Engineer positions at Robinhood is relatively standard, but requires a high level of technical depth and business understanding from candidates. The entire process typically consists of the following stages:

HR Initial Screening
This round is mainly a chatting communication. HR will learn about your educational background, project experience, and your interest in Robinhood. At the same time, they will also introduce the job responsibilities, the type of recruiting team and the overall process arrangement. It is recommended to prepare motivational questions such as "why are you interested in Fintech" and "why Robinhood" in advance to leave a positive impression.

Robinhood VO Coding
This round is a typical live coding, using CoderPad or HackerRank environment to complete the programming questions, the difficulty is usually LeetCode medium ~ hard, the questions are strings, hashes, heaps, concatenated sets, graphs, sliding windows and so on as the common test points, the candidates are required to write bug-free solutions within 45~60 minutes, and explain their thinking to the interviewer. Interviewer to explain the idea and show the thinking process.

Robinhood VO System Design / Project Deep Dive
This round will be customized based on the candidate's experience. Candidates who are on the senior side are generally System Design, while junior or internship positions are biased towards digging deeper into the technical details of the project. The interviewers will focus on your understanding of architecture design, the rationality of data flow/storage scheme, and the role and influence you have assumed in the actual project. Interviewers like to ask questions "from a scenario", such as "What if you want to support 10 times the number of users? or "Can this feature be concurrent?" etc.

Onsite
If it is a formal position, some teams will also arrange onsite interviews, including 2~4 rounds of different dimensions, including the second round of more in-depth Coding, System Design, Behavioral, and Cross-functional round, each of which has requirements on communication, clarity, and trade-off thinking. Robinhood emphasizes cross-team collaboration, so behavioral interviews often look at collaborative conflict, ownership, and influence.

⚠️ Little Tips: The difficulty of the technical questions interspersed in the Robinhood interview process is not particularly perverse, but pays a lot of attention to the candidate's understanding of engineering practices, ability to link business contexts, and clarity of expression. If you only brush up the questions before but can't answer the items, it is recommended to prioritize making up the story line and structural expression of the items.

Coding Real Questions Review (2025 Latest Version)

Part I

Quiz
Part I Probability [8 points in total]
Suppose 30% of Robinhood customers own CAT stock. Also, suppose 15% of Robinhood customers own both CAT and DOG stock. Determine the possible range for the percentage of Robinhood customers that own DOG stock. Determine the possible range for the percentage of Robinhood customers that own DOG stock.

  1. What is the smallest possible percentage?
    • 10%
    • 15%
    • 25%
    • 50%

2. What is the largest possible percentage?

  • 50%
  • 75%
  • 85%
  • 100%

Part II

Quiz
Amir operates a large lobster boat. The operating cost for the boat is $2,250 each day. At the end of each day, he sells all his freshly caught lobster to either the local restaurant or the local grocery store with the following conditions. At the end of each day, he sells all his freshly caught lobster to either the local restaurant or the local grocery store with the following conditions.

  • The price per pound that the restaurant is willing to pay follows a triangular distribution with minimum value $1.50, maximum value $5.50, and likeliest value $3.50.
  • The price per pound that the grocery store is willing to pay is decreasing with more lobsters: $3.85 - $0.0005 * y, where y is the total lobster amount sold in pounds.
  • The amount of lobster that Amir catches in a single day follows a normal distribution with mean 1,500 pounds and standard deviation √12,500 pounds.

Amir decides to sell a fixed percentage of lobster to the local restaurant and the rest to local grocery stores. Using either math or simulation, can you help Amir determine what percentage he should choose in order to maximize his expected profit in the long run?

  • 57%
  • 84%
  • 77%
  • 34%

Free-Text
Part 2.
Please provide detailed explanations to show that your answer in Part 1 is the optimal percentage among all possible integer percentages. State any assumption you make when solving the problem. assumption you make when solving the problem. (If using simulation, please upload a PDF version of your code).

Part III

In order to improve user retention and lower churn, the growth team at Robinhood is interested in understanding why and which users withdraw money from their Robinhood account. A user is considered churned when their equity value (amount of money in Robinhood account) falls below $10 for a period of 28 consecutive calendar days or longer. A user is considered churned when their equity value (amount of money in Robinhood account falls below $10 for a period of 28 consecutive calendar days or longer.

Using the datasets given below answer the next few questions.

Please provide the code and any explanation of your assumptions and methodology in a notebook. We will ask you to provide the code and any explanation of your assumptions and methodology in a notebook in the last part.

Datasets.
features_data.csv - contains user level data such as.

  • user_id - unique id for every user
  • risk_tolerance - self-reported risk tolerance of the user
  • investment_experience - self-reported investment experience of the user
  • liquidity_needs - self-reported liquidity needs of the user
  • time_horizon - self-reported investment time horizon of the user
  • platform - which platform (iOS or Android) the user is on
  • time_spent - amount of time spent on the app
  • first_deposit_amount - $ value of the amount first deposited
  • instrument_type_first_traded - type of instrument first traded

equity_value_data.csv - contains user_id and equity_value for user along with timestamps for days when the user's equity value is greater than or equal to $10. value is greater than or equal to $10.

Quiz
Part II [5 points]

Build a classifier that given a user with their features assigns a churn probability for every user and predicts which users will churn. Please show your work in your notebook, and state any metrics you deem important. work in your notebook, and state any metrics you deem important. Based on the classifier output classify each user in the dataset as churned or not churned. Then answer the following questions. We will ask you upload your notebook later.

How well does your classifier perform? What's the AUC score of your test set?

  • 0.5~0.8
  • 0.8~0.9
  • 0.9
  • <0.5

Sharing the experience of real students who went to the bank|Assisting you throughout the interview day!

A student came to us for help with his SDE technical interview at Robinhood. His background is a master's degree from a UC school in Southern California, and he has a good foundation in brushing up on his knowledge, but he is not very confident in system design and interview presentation. After learning about his upcoming interview, we immediately arranged emergency counseling and full assistance on the interview day for him.

This student encountered an uncommon "Merge Interval + Priority Queue" variant on the interview day, and was a bit stuck at the beginning. We listened to the question in real time in the background + voice prompts to help him quickly clarify the structure of the solution, and at the same time in the code writing process through the keyword voice-assisted reminder of the code details (such as boundary conditions, complexity optimization points), so that the interviewer can see a well-organized, complete implementation process.

The second question was a system design follow-up question related to the project, entitled "How to design a system to support stock trading order book". We added key words and phrases such as "asynchronous message queuing", "limit vs. market order processing strategy", "how to support concurrent conflict control", etc. to help him build up a complete technical architecture framework from the original "asynchronous message queuing". etc. We helped him to build up a complete technical architecture framework, so that he evolved from the original "memorized answer" to "structured expression".

In the end, this VO interview went well, and he was the first to give feedback:
"It didn't feel like I was fighting alone during the interview process, especially the system design part, and having you guys to help me add logic was really crucial."

Programhelp Help with Robinhood VO|Technical Support Services

If you are preparing for Robinhood's VO interview recently, but you are still worried about coding, system design, structure, BQ answers, and don't know where to break through -- don't panic, our Programhelp team can help you from simulation training to real-time assistance on the interview day. The Programhelp team can help you in the whole process, from simulation training to real-time assistance on the day of the interview.

We support a variety of approaches to interview chaperoning and assistance, including:

VO Technical Real-Time Voice AssistWe can help you to optimize your code. We listen to the questions remotely and synchronously while you are answering the questions, instantly suggest keywords, help you clear up the logic of the questions, optimize the details of the code, and don't let you panic in front of the screen alone.

System Design Answer Framework Sorting: There is no need to be afraid of not practicing architecture questions, we will teach you in advance how to build a complete design from the scene, data flow, component responsibilities, technology selection and other dimensions, while giving keyword hints on the day of the interview to help you top the whole rhythm.

Behavioral Interview Logic Enhancement: We'll help you put together well-told and believable project stories based on Robinhood's cultural style and past question types, and use a structured answer method to boost the power you hit with each sentence.

Especially on the day of the interview, we not only provide real-time background listening to the questions + reminders of ideas, but also simulate the interviewer's point of view in advance of the exercise, so that you have a "preview" before the official opening of the microphone opportunity.

If you want to pass Robinhood's technical interviews more steadily, please feel free to send us a private message to get the exclusive simulation training + real-time interview assistance service, and take the Fintech big factory offer together with us!

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