AlphaGrep
Built from 1 candidate report with 2 first-hand accounts, covering 2026-27.
Hiring process
Roles: QR & T Intern2026-27 · Internship
- 1
Resume shortlist
Direct shortlist (no online test)eliminatoryNo test was held; candidates went straight to interviews. Both accounts think a CPI around 9 was the criterion, but they are unsure.
- 2
Technical interview
Interview 1: language depth, DSA and designGoogle Meet50 minhardC++ internals · virtual pointers · CRTP · vectors and maps internals · move semantics · universal references · smart pointers · C++11 vs C++17 · Python monkey-patching · endianness · DSA with follow-up · design · previous internship
Accounts differ: one saw language-trivia heavy round led by a researcher, the other a DSA plus design round. Duration 50 min from one account. Includes introduction and previous internship discussion.
- 3
Technical interview
Interview 2: probability and C++ fundamentalsGoogle Meet40 minmediumprobability · trading puzzles · mental math · leverage · stack vs heap · RAII · object lifetime · constructors and destructors · endianness
Order of rounds differs between accounts. Time split reported: 10 min introduction, 25 min probability and C++, 5 min candidate questions.
- 4
Technical interview
Interview 3: low-level design or finance maths rapid fireGoogle Meet35 minmediumlow-level design · asynchronous order handling · code quality · arbitrage · hedging · leverage · P&L · speed multiplication
One account describes a single long low-level design question using the whole round; the other describes a 15 minute math rapid-fire. Duration 35 min from one account.
Advice from candidates
15 pieces of advice, in their own words. Names removed.
Be ready for an in-depth discussion of cpp or Python (depending on the role you have applied for).
interview · 2026-27
Take a minute to think about the best way to solve each of the questions. Questions will be pretty easy, but if you take the most straightforward approach, you’ll end up doing a lot of calculations. So take some time to think about the best way to solve the problem. The interviewers will also expect you to think of some smart way that doesn’t involve a lot of calculations.
interview · 2026-27
They were also looking at code quality along with correctness; just keep an eye on time since this was a long question and took the entire interview.
interview · 2026-27
As [friend] said, it's really difficult to read some of the interviewers. They don’t react much to right or wrong answers. Just be confident with whatever you are answering.
interview · 2026-27
Loading the other 11…
Question patterns reported
The kind of problem, not the problem itself. Our practice questions are written to match these patterns.
- Technicalsingle-line fix for loop counter reset trick in C++
- Technicalwrite function to detect machine endianness
- Technicalone DSA problem with follow-up, then a design question
- Technicalstandard probability puzzles needing a clever low-calculation route
- Technicaltrading scenario puzzles with concept explained in interview
- Technicaldesign order manager processing acknowledgements asynchronously
- Technicalnumerical questions from supplied finance definitions, plus two-digit multiplication