Interview Experiences

Real candidates, real loops: every round, what was asked, and how it ended.

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68 stories

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Capital OneData Scientist
Oct 2025

A Phone Screen and a Break-Even Mini Case

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In progressTechnical ScreenXP0
Capital OneData Scientist
Oct 2025

A Smooth Power Day of Case, BQ, Case, and DC

I interviewed for C1's power day this week. Coming back to give back to the forum with my interview experience. I was nervous going in because I hadn't finished prepping in time, but the whole process turned out to be pretty smooth and not that hard. My power day order was case-bq-case-dc. Round 1, case: a coding-style one, I'd already come across this one before so no real questions there. Round…

In progressOnsite0
Capital OneData Scientist
Oct 2025

Take-Home Challenge, Then a Four-Round PowerDay and an Offer in Under 50 Minutes

Yesterday morning was PowerDay, 9:00am-12:30pm Eastern Time. I'm in Vancouver, so I dragged myself out of bed at 5:20am for the interview. Luckily it went well — less than 50 minutes after the interview ended I got an email from the recruiter with an offer writeup, and now the next step is team matching. I've been sending out résumés for a year and a half and honestly it made me want to die, cons…

OfferOnsite0
Capital OneData Scientist
Oct 2025

A Full Power Day Onsite (Two Cases, Data Challenge, BQ) Ending in an Offer

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OfferOnsiteXP0
Capital OneData Scientist
Oct 2025

Passed Power Day, Now Waiting on Team Matching

This Friday I just finished my Power Day. In the afternoon I got the email saying I didn't need another round, and not long after that the recruiter called that same afternoon to tell me I passed. But since it was Friday, HR usually doesn't get back right away, so they told me they'd first show my results to the HR they're currently working with to see if anyone wants to pick me up, and if not, t…

In progressOnsite0
Capital OneData Scientist
Oct 2025

A Cloud Pricing Case with Break-Even Math

A minicase about a cloud service — not sure if it's a new one, I don't remember seeing it on the forum before. The setup was a startup doing cloud services. We supposedly had our own advantage (I didn't quite catch what the advantage actually was, but personally I don't think it affected the rest of the questions much). Q1: How would you structure the product offering? How would you generate prof…

Technical Screen0
Capital OneData Scientist
Oct 2025

A Diaper Factory Case Under Time Pressure

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RejectedTechnical ScreenXP0
Capital OneData Scientist
Oct 2025

SBA Mini Case on a New-Energy Investment Plan

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In progressTechnical ScreenXP0
Capital OneData Scientist
Oct 2025

the Groupon Coupon Mini-Case

Just finished the mini case this morning, and by the afternoon I already had the pass notification along with a scheduled power day for next week — I have to say the recruiter I got this time was way better than the last one. While it's still fresh, let me report back to everyone. Hoping next week's power day goes smoothly. At the start, the interviewer briefly introduced his background, had me i…

In progressTechnical Screen0
Capital OneData Scientist
Oct 2025

Two Attempts, a Cancelled Headcount, and an Energy Case Interview

My Capital One interview process has been quite a rollercoaster so far — over the past month or so I've interviewed twice. Timeline The first time was through a referral from a friend, for a newly posted analytics role: 1/16: HR Call scheduled 1/24: HR Call rescheduled to 1/31 — the reason was that when the original interview time came, I sat on my phone waiting for over half an hour, then HR fin…

In progressTechnical Screen0
Capital OneData Scientist
Oct 2025

OA, Data Challenge, and a Four-Round Power Day

At the end of July, a friend referred me for a Capital One SDA position. Then nothing for about a month. 9/5: The recruiter emailed with the OA, valid for one week. The OA wasn't hard but the time was tight — 70 minutes for 15 questions, 14 multiple choice and 1 SQL. The first seven questions used one CSV, the eighth was the SQL question, and the last seven used four more CSVs where you had to me…

OfferOnsite0
Capital OneData Scientist
Oct 2025

Role Play, Hiring Manager, and End-to-End Model Rounds

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OnsiteXP0
Capital OneData ScientistIntern
Oct 2025

Bombed the Coding Round, Still Got the Offer

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OfferOnsiteXP0
Capital OneData Scientist
Oct 2025

the Ride-Share Profitability Mini Case

I just finished my mini case this morning, sharing it while I still remember everything. I've gotten a lot of help here, so I wanted to give back too. Hope everyone's interviews go well. Today's interview was the exact question someone here had already shared — the original Google Doc question — and of course that was the one question I hadn't gotten around to preparing. Felt like I'd practiced p…

Technical Screen0
Capital OneData Scientist
Oct 2025

A Grocery Loyalty Case With a Database-Outage Twist

I finished my interview in the afternoon and got notified the next day that I'd passed. But my next round wasn't a PD round — it was another case interview instead. I don't know if any of the intern applicants here can confirm whether this is the standard process for everyone. For the mini case, the interviewer introduced themselves and then we got started. It was the grocery loyalty membership c…

Technical Screen0
Capital OneData Scientist
Oct 2025

The Energy One Mini Case and a Same-Day Power Day Callback

Mini case, midday on 3/18/2025. The question was one someone had already shared here before — the Energy One case. The interviewer gave a short self-introduction, then asked about my background — worth remembering to prep for that too, I was so focused on the mini case that I answered it pretty roughly. Then we got into the actual case. There's an energy company called Energy One that wants to tr…

In progressTechnical Screen0
Capital OneData Scientist
Oct 2025

Data Challenge, Power Day, Offer in 3 Days

Reading interview reports here helped me a lot, so I'm giving back with my own timeline and report. Got an HR call at the end of February, and scheduled an HM call for a week later. The hiring manager was great — she mostly shared her own experience and what the team does, then went through my resume in detail. After the HM call in early March, I got a Data Challenge. Very classic problem, overal…

OfferOnsite0
Capital OneQuantitative Analyst
Oct 2025

A Full-Day Power Day Onsite Ending in an Offer

I've read a lot of interview reports on the forums and gotten a lot out of them, so let me quickly share mine. The position I interviewed for was Quantitative Analyst. HR just asked about my visa status and then scheduled an HM phone interview. The HM interview was on Zoom. At first I thought there'd be some technical or resume questions, but it ended up being basically all BQ. A lot of it was ab…

OfferOnsite0
Capital OneBusiness AnalystNew Grad
Oct 2025

A Math-Heavy Case Round with a Database Cost Question

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In progressTechnical ScreenXP0
Capital OneData Scientist
Oct 2025

A 70-Minute OA With 14 Excel and SQL Questions

Timeline: applied mid-April, got the OA invite in early May. Duration: 70 minutes. Content: 14 questions total, with a big SQL question in the middle. The content matched what people have shared here in past years almost exactly — really grateful to everyone who shared before me, it was super useful for prepping! Questions 1-7: you download a csv file. The one I got was about an online ad platfor…

In progressOnline Assessment0

What are interview experiences?

An interview experience is a candidate's own account of a hiring loop — not a question bank entry. It tells you the shape of the process: how many rounds there were, what each round actually tested, how long the gaps between them ran, and what the recruiter said at the end. That context is the part a question list cannot give you.

How to read them

Weight recent write-ups more heavily — interview loops change, often within a year. Read several for the same company and role rather than one: a single account tells you what one interviewer asked, while five tell you what the bar is. Note the outcome badge too, since a rejection write-up usually explains the gap far more precisely than an offer one.

Share your own

Every published experience earns 50 XP, and each of the first 3 likes it receives in a day earns you 10 XP more. Likes must come from established accounts; like-for-like swaps and likes from your own second account are not paid. Write it while the details are fresh — the round order, the exact prompts, and how much time you were given are what the next reader needs.

Share your experience to earn XP