Como se preparar para entrevistas na Brex

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Design Twitter

Design a social media platform similar to Twitter but incorporating Amazon-style product features such as product recommendations, shopping integration, or e-commerce functionality.

Leetcode 1. Two Sum

Given an array of integers and a target, return the indices of two distinct elements whose values sum to the target (exactly one valid solution exists). The core challenge is efficiently finding complementary values (aiming for better than O(n^2) brute force).

Tell me about a situation that required you to dig deep to get to the root cause.

Design CamelCamelCamel

Design a price tracking system like CamelCamelCamel that allows users to monitor product prices across e-commerce platforms, set price alerts, and view historical price data.

Round Robin Algorithm: Debugging and Testing

Debug and complete the implementation of a traffic router using the round robin algorithm. Identify and fix any bugs in the existing code, ensure all tests pass, and write additional tests to cover edge cases.

Why did you leave your last job?

Pergunta compartilhada pela comunidade NaGringa para ajudar outros devs a se prepararem melhor para entrevistas técnicas.

Why do you want to work at Brex?

Pergunta compartilhada pela comunidade NaGringa para ajudar outros devs a se prepararem melhor para entrevistas técnicas.

Debugging round

Onsite interview for SWE2/backend around 2023 included a dedicated debugging round. Exact prompt was not recalled; useful prep focus: reading unfamiliar code, isolating the bug, testing hypotheses, adding or using tests, and explaining the fix clearly.

Behavioral question about digging into root cause

Onsite interview for SWE2/backend around 2023. Behavioral round matched a root-cause/deep-debugging story prompt: candidate should be ready to describe a situation where they investigated deeply to find the underlying cause of a problem.

Database modeling exercise

Onsite interview for SWE2/backend around 2023. System design round was focused on database modeling rather than a large-scale architecture design; useful prep focus: entities, relationships, constraints, indexes, query patterns, and tradeoffs in schema design.

Read data from an API and perform operations on it

Onsite interview for SWE2/backend around 2023. Coding round involved reading data from an API and performing operations/transformations on the returned data; useful prep focus: API consumption, data parsing, correctness, edge cases, and clean implementation.