How to Answer: "Why Do You Want to Work at Brex?"

Answer with a specific reason, proof from your own work, and a clear idea of what you would build at Brex. Brex builds corporate cards, expense software, and business banking for companies. The interviewer wants to hear that you know this product. They also want a real reason why you would build it. A generic answer about joining "a great fintech company" fails. A specific answer about spend management or payment systems succeeds.

This question appears in the recruiter screen and again in the values interview. The values interview is a round that tests fit with Brex's stated values. Candidates report that this round can decide the offer by itself. So prepare the motivation answer with the same care as a coding question.

What the Interviewer Listens For

• A reason based on the product. Brex automates expense reports, card controls, and bill payments for finance teams. Name which of these problems interests you, and why.
• Evidence of ownership. Ownership means you stay responsible for a task from start to finish. Brex asks for stories that prove it.
• A preference for simple solutions. One Brex value states that complexity is the enemy. Show that you remove parts from systems instead of adding them.
• Customer focus. Brex names customer obsession as a value. The best answers mention the finance teams and founders who use the product.

A Three-Part Structure

Part 1: The product reason (1 to 2 sentences). Say which part of Brex's product interests you. Corporate cards, expense automation, and business banking are all valid choices.

Part 2: Your evidence (2 to 3 sentences). Describe work you did that relates to that part. Include one number, such as users served or errors reduced.

Part 3: The direction (1 to 2 sentences). Say what you want to build at Brex. Connect it to the experience you just described.

Sample Answer

"I want to work at Brex because I have felt the problem it solves. At my last company I built a tool that matched card receipts to accounting entries. That project showed me how messy company spend data is, and how much software can fix. I have shipped payment integrations end to end, including retry logic and reconciliation checks. Reconciliation means checking that two records of the same money agree. Brex works on these exact problems at a much larger scale. I want to join a team that owns spend automation and build it for thousands of companies."

This answer works for three reasons. It names a specific product problem. It gives proof from real work, with a defined term used correctly. It ends with a clear direction inside Brex.

Adjust the details to your own history. The shape stays the same: problem felt, work done, direction chosen. Keep the whole answer under one minute when spoken.

Common Mistakes

• A generic fintech answer. If your answer also fits Stripe or a bank, it is too vague. Name Brex features and Brex customers.
• No product knowledge. Interviewers notice when a candidate has never looked at the product. Read the Brex website and study the product pages before the interview.
• Talking only about company growth. Company success is not a personal reason. The interviewer wants to know what you would do there.
• No ownership story. Motivation without proof sounds empty. Include at least one project you completed yourself, from start to finish.
• Ignoring the values. Brex publishes its values and tests them directly. An answer that contradicts them, for example by praising complexity, hurts you.

How to Prepare

• Study the product first. List three Brex features and the problem each one solves. Use that list in Part 1 of your answer.
• Prepare two ownership stories. Each story needs a situation, your actions, and a measured result. Grokking Modern Behavioral Interview teaches this method with worked examples.
• Learn the full process. Read What Is the Brex Interview Process Like? (Round by Round) so you know where this question appears.
• Practice the values round. Review Top Brex Behavioral Interview Questions (and How to Answer Them) and draft one answer per theme.
• Senior candidates: prepare for design. See What to Expect in the Brex System Design Interview for the technical questions that follow this one.