Three candidates describe Bain software engineering interviews that mix technical screens, resume deep-dives and scenario-style questions. Here is what they reported and how to prepare for each part.
$110K
Avg. Base Comp
$140K
Avg. Total Comp
Not reported
Typical Rounds
Not reported
Process Length
Bain's software engineering interviews, as three candidates describe them, blend standard technical screens with a more consulting-flavored style. All three reported not receiving an offer, so the details below are useful mainly for knowing what to rehearse.
One senior candidate described a recruiter prescreen, a hiring manager conversation built around scenario questions tied to the work at Bain rather than a resume walkthrough, and a multiple-choice digital assessment covering mathematical reasoning, logical reasoning and a personal profile. That candidate then reported two interviews, each with an attitudinal and a technical part. The technical side included a live coding session with three medium-difficulty problems and little interviewer help, plus an architecture-style round where they were asked to draw an ERD for an app they had built.
An intern candidate also began with an online assessment (numerical reasoning, logic puzzles, computer theory). Technical interviews then focused on object-oriented programming: explaining polymorphism, inheritance, abstraction and encapsulation with examples from their own projects. They also reported scenario-based questions, some data structures and algorithms, a deep dive into their resume, and one lateral-thinking puzzle.
A third candidate reported at least two rounds, a technical interview and one with the hiring manager. The discussion centered on resume projects, design choices, how to optimize a system under heavy traffic, and a few SQL questions at the end. Follow-ups on a GPS data project covered which part they personally built, authentication and authorization, and how they ensured security.
The common thread is explaining your own work clearly: be ready to say what you owned, why you designed it that way, and how it would scale or stay secure. Pair that with timed coding practice and some comfort with unfamiliar, open-ended scenarios.
Synthesized from 3 candidate reports by our editorial team.
Had an interview recently?
Share your experience. Unlock the full guide.
Real interview reports from people who went through the Bain & Company process.
There were at least two rounds: a technical round and one with the hiring manager. I failed the technical part. We talked about the projects on my resume, why I designed them the way I did, and how to optimize the system if it gets huge traffic. At the end, they asked questions about SQL.
Questions asked: We were also processing GPS data, so can you tell us more about this project? Can you tell us which chunk of it you were working on? I suppose it was quite a large project, so not everything was developed by you. Do you have any authorization and authentication mechanism there? Are you also responsible for this chunk? Can you tell us how you guarantee security?
Share your own interview experience to unlock all reports, or subscribe for full access.
Sourced from candidate reports and verified by our team.
Topics based on recent interview experiences.
Featured question at Bain & Company
Find the total salary of slacking employees.
| Question | |
|---|---|
| Hurdles In Data Projects | |
| Holiday Airport Traffic Surge | |
| Algorithm Reliability | |
| Gas Station Counting | |
| Minimum Days for Scheduling All Meetings | |
| Presentations and Insights | |
| Kindergarten Feasibility | |
| 2nd Highest Salary | |
| Top Three Salaries | |
| Closest SAT Scores | |
| Merge Sorted Lists | |
| Employee Salaries | |
| Prime to N | |
| Largest Salary by Department | |
| Top 3 Users | |
| Rolling Bank Transactions | |
| Top 5 Turnover Risk | |
| Bagging vs Boosting | |
| Raining in Seattle | |
| Size of Joins | |
| Find the Missing Number | |
| Retailer Data Warehouse | |
| Over-Budget Projects | |
| Maximum Profit | |
| Find the First Non-Repeating Character in a String | |
| P-value to a Layman | |
| First Touch Attribution | |
| Employee Project Budgets | |
| The Brackets Problem |
Synthesized from candidate reports. Individual experiences may vary.
One senior candidate reports the process began with a recruiter prescreen before any interviews. The intern candidate's process began with an online assessment, so the first contact may differ by role and level. No details of the prescreen's content were reported.
Two candidates report an online assessment before interviews. The senior candidate describes multiple-choice questions on mathematical reasoning, logical reasoning and a personal profile section. The intern describes numerical reasoning, logic puzzles and computer theory fundamentals. Content may vary by role.
One senior candidate reports a hiring manager conversation that leaned on scenarios related to Bain's work rather than a resume walkthrough. Another candidate also reports a round with the hiring manager alongside a technical interview. Prepare to reason aloud through unfamiliar situations and to explain your own projects and decisions.
Technical content differed across candidates. One reports a live coding session with three medium-difficulty problems and little guidance. Another reports heavy object-oriented programming questions with some data structures and algorithms. A third reports resume project discussion, scaling for heavy traffic and SQL questions at the end.
The senior candidate reports an architecture-style round that included drawing an ERD for an app they had worked on. Another candidate was asked about handling large traffic, authentication, authorization and security for a past project. Be ready to explain system design for your own work.
