Brex Software Engineer candidates describe recruiter and hiring-manager conversations, technical interviews with interactive follow-ups and debugging, plus system design and AI-assisted coding in some onsite loops.
$214K
Avg. Base Comp
$334K
Avg. Total Comp
3 rounds
Typical Rounds
Not reported
Process Length
Brex Software Engineer interview reports point to a process that can combine early conversations with technical evaluation, but the exact onsite format is not consistent across accounts. One candidate described a recruiter call, a hiring-manager call, and a panel interview. Another described a virtual onsite whose first scheduled session was labeled AI-assisted coding; a separate Senior Software Engineer onsite was scheduled with both system design and AI coding, though the candidate had not been given format details.
For system design, prepare to explain backend tradeoffs for a payments-domain problem. One candidate was asked how the backend for peer-to-peer sending and receiving payments would work, with discussion of scale and latency. That supports practicing a structured explanation: clarify requirements, describe the core flow and data movement, then discuss how the design handles growth and response-time constraints.
A separate technical account described a three-part interview where follow-up questions and pushback consumed meaningful time, followed by debugging near the end. Keep explanations concise enough to complete the initial solution, respond to challenges, and still investigate a defect. Ask the recruiter which sessions are on the schedule and what tools or expectations apply to any AI-assisted coding session. Evidence is limited to a small set of candidate reports, so treat the exact sequence as variable.
Synthesized from 3 candidate reports by our editorial team.
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Real interview reports from people who went through the Brex process.
The technical interview had three parts, and the time pressure was the main thing that caught me off guard. I spent a lot of time explaining my thinking while the interviewer pushed back and asked curious follow-up questions, which made the discussion feel more interactive than a straightforward coding screen. I got along well with the interviewer, but because we kept digging into the approach, I ran out of time before I felt I had cleanly completed everything.
Near the end, there was also a bug I needed to fix that we discussed, so it seemed important to leave enough time not just for the main solution but for debugging and responding to challenges to the design. The broader process was fairly standard: a recruiter call followed by several technical rounds. My experience was ultimately a rejection without detailed feedback, and the overall tone felt more hostile than I expected.
I would go in prepared to manage the clock actively. Explain your reasoning, but keep answers concise enough that you can complete all three parts and reserve time to diagnose and fix a bug if one comes up.
Prep tip from this candidate
Practice pacing through a three-part technical interview: keep your explanation concise while handling pushback, and reserve time at the end to debug a discussed issue rather than spending the entire round on the initial solution.
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Sourced from candidate reports and verified by our team.
Topics based on recent interview experiences.
Featured question at Brex
Describing a data project and its challenges
| Question | |
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| Max Width | |
| Fixed Length Arrays: Addition | |
| Inherited Model Evaluation | |
| Client Solution Pushback | |
| 2nd Highest Salary | |
| Closest SAT Scores | |
| Employee Salaries | |
| Subscription Overlap | |
| Empty Neighborhoods | |
| Top Three Salaries | |
| Monthly Customer Report | |
| Rolling Bank Transactions | |
| Merge Sorted Lists | |
| String Shift | |
| Comments Histogram | |
| Top 5 Turnover Risk | |
| Like Tracker | |
| Find the First Non-Repeating Character in a String | |
| Bagging vs Boosting | |
| P-value to a Layman | |
| Total Spent on Products | |
| Prime to N | |
| Cumulative Distribution | |
| Top 3 Users | |
| Over-Budget Projects | |
| Google Maps Improvement | |
| Over 100 Dollars | |
| Find the Missing Number | |
| Minimum Change |
Synthesized from candidate reports. Individual experiences may vary.
One candidate reported a recruiter call before later interviews. Use it to confirm the scheduled stages, particularly whether an onsite includes AI-assisted coding or system design, because other candidates said those formats were unclear before the interview.
One account listed a hiring-manager call after the recruiter conversation. No question topics were reported for this stage, so candidates may use it to understand the team and to communicate relevant engineering experience clearly.
Candidates report technical sessions that may include a system-design discussion, AI-assisted coding, and an interactive multi-part interview. One system-design prompt concerned a peer-to-peer payments backend with scale and latency considerations; another candidate needed time to debug after follow-up discussion.
