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Robinhood Interview Experiences
3935 interview stories from candidates at 857 companies: how each round went, what was asked and how it ended. Every company page links to practice questions in the same style.
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13 results
- Market Data API Design Round, Expecting a RejectionRobinhood · Software Engineer · Onsite · Oct 2026In progress
Design the Robinhood Marketdata API GET /quotes/{symbol}/live: real-time quote, ~10M qps GET /quotes/{symbol}/historical?range=(1d,1m,1y): historical range, ~1M qps They gave me a data source, NASDAQ Last Sale: two independent, redundant long-lived TCP connections (Conn A/B); about 7,000 symbols; peak of ~100k trades/s on each connection; 6.5 trading hours per day. Message format: symbol (4-5 ASC…
- Three Back-to-Back Onsite Rounds, Rejected the Next DayRobinhood · Software Engineer · Onsite · Oct 2026Rejected
10/6: back-to-back 3 rounds. 1st: project deep dive. 2nd: system design, a job scheduler. 100,000 job definitions, 10,000 concurrent job runs, all cron jobs, no immediate run, at-least-once guarantee. I get the feeling the interviewers also prepare from stuff they find online. I followed a popular online breakdown of this problem and added a schedule entity, and the interviewer questioned why it…
- Fractional-Share InventoryRobinhood · Software Engineer · Technical Screen · Sep 2026
The author describes a first-round Robinhood coding interview about handling customer trades when an exchange accepts only whole shares. The exercise tracked fractional inventory by symbol, covered purchases and sales, and included orders expressed either in shares or in money. Exchange transactions had to leave each inventory balance nonnegative and below one share after an order. The supplied f…
- Load Factor, Reachability, and Explaining the ApproachRobinhood · Software Engineer · Technical Screen · Sep 2026
The coding question was the classic load factor problem and was essentially the standard version. At the beginning, I asked whether I could assume that every node was reachable. The interviewer said yes, so I implemented the solution under that assumption. When I finished, it passed three of the four tests. I then started adding an explicit reachability check. My main advice from this interview i…
- SDE II Loop with a Job Scheduler DesignRobinhood · Software Engineer · Onsite · Jun 2026Rejected
I want to share my Robinhood SDE II interview experience. Although I did not get an offer in the end, I learned a lot while preparing, and I hope this gives people interviewing later a useful reference. Technical Screening A frequently seen Referral Count problem, solved with DFS and memoization. Coding Fractional Stock Inventory, 45 minutes. My main implementation and all test cases passed. Ther…
- Referral Graphs and a Job SchedulerRobinhood · Software Engineer · Onsite · Apr 2026Rejected
The applicant reports completing Robinhood’s three-hour onsite across three separate days. A referral-count coding problem went smoothly, but the project discussion was harder: the applicant struggled to explain the system’s complexity and scalability after the interviewer exhausted questions about business logic. The report advises preparing useful starting points for a deeper technical conversa…
- Three Onsite Rounds, Strong Self-Reviews, Still No MatchRobinhood · Frontend Engineer · Onsite · Apr 2026Rejected
Three onsite rounds: Coding — Weekly Calendar Write a 7-day weekly calendar live, with columns as time (1-hour intervals) and rows as days. Clicking a cell pops up a dialog to create an event name. They give you a mockup. I wrote two pieces of state — a 2D grid and an events list — and did a transformation to derive the grid from the events. I felt like I wrote it so-so. The interviewer told me d…
- Two Months of Team-Match Limbo, Then a 'Role Moved to Toronto' ExcuseRobinhood · Software Engineer · Onsite · Mar 2026Rejected
This has been an extremely long timeline, and even now I still don't know whether they want to reject me but can't bring themselves to say it, or whether they're just pretending it's still a team match. If any of you are at Robinhood, please help me figure this out. Thanks! Feb 11 — talked with the recruiter. Feb 19 — first technical round, they said I passed. Then another prep call with the recr…
- Passed the Tech Rounds, Failed the EM Round, Redid Team MatchRobinhood · Software Engineer · Senior+ · Onsite · Feb 2026
I interviewed for Senior Software Engineer on the Competitor Insights team. I passed the technical rounds, but failed the EM round because I lacked frontend experience. The recruiter agreed to let me redo team match, so I talked to the Experimentation team as well. Round 1: Hiring Manager We covered the usual collaboration and communication questions, and I was also asked a lot of questions about…
- Solved the Coding Question, Still Rejected in Under 30 MinutesRobinhood · SDE II · Technical Screen · Feb 2026Rejected
Recruiter Call Main topics they asked about: Self-introduction The project I worked on that had the most impact, and my role in it Why I'm interested in Robinhood The top three factors I care about when choosing an offer What I'm looking for in my next role Compensation expectations What other companies I'm interviewing with, and what stage each is at Visa status, tech stack, relocation, etc. Que…
- System Design Round Ended Early, Rejected in 9 MinutesRobinhood · Software Engineer · Onsite · Dec 2025Rejected
A bit of background: I graduated in 2021 and did four years of C++ SDK dev, mixed in with about two years of building a Python test framework. My company started requiring three days a week back onsite, and the commute was wearing me out, so I started looking for something closer to home. Robinhood's infra work wasn't really a match for my background, but they gave me an interview anyway, and in…
- Sample-Size Math in the Experimentation RoundRobinhood · Data Scientist · Onsite · Oct 2025Rejected
I've been getting rejected a lot in interviews lately. Today I got another rejection — they said my performance in the experimentation round wasn't good. I felt like I did really well in that round; I covered all the concepts I'd prepared ahead of time. I honestly don't see what was bad about it. For the experimentation round, they asked about the benefits of launching fractional shares and how t…
- The Referral Chain Leaderboard ProblemRobinhood · Software Engineer · Onsite · Aug 2025
Robinhood's referral program is pretty well known. The task is to build a dashboard to track the state of the referral program, specifically to understand how people refer others through a referral chain. Assume a person refers everyone below them in the chain. For example, A refers B, C, and D in a referral chain A -> B -> C -> D. Build a leaderboard showing the top 3 users with the most referre…
