Set technical strategy and architecture for Brex's money-movement and banking platform

This Staff role owns architecture, reliability, and delivery across Brex's Banking org — the Business Account product, Bill Pay/Vendors, and the underlying money-movement platform and partner integrations. Interviews will probe systems-thinking at the org level: leading multi-team technical strategy, mentoring senior engineers, and navigating regulatory/compliance constraints in a hybrid SF-based team.

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What this interview tests

Architecture and technical strategy for distributed financial systems
Cross-functional influence without direct authority (product, compliance, risk, ops)
Reliability and operational excellence with measurable business impact
Mentoring senior engineers and scaling technical leadership
Regulated/fintech system design (money movement, ledgering, partner integrations)
Balancing long-horizon strategy with hands-on execution

Common question themes

Describe leading architecture for a large-scale multi-team distributed system

How have you turned ambiguous regulatory/business requirements into a technical plan

A time you improved reliability/operability of a production system — what changed and by how much

How do you influence senior stakeholders and align teams without formal authority

How do you mentor senior engineers and raise engineering standards org-wide

Experience integrating third-party financial/infrastructure partners into critical flows

How candidates describe it

Real Staff Software Engineer interview stories — retold from candidates' public write-ups, with sources.

LinkedIn · Staff Software EngineerNo offer

LinkedIn Staff Software Engineer Interview: Two Onsite Loops and a Final Reject

A candidate interviewed for a Staff Software Engineer role at LinkedIn's Sunnyvale office, going through two phone interviews and a six-round onsite loop that mixed leadership and craftsmanship questions with coding and system design problems. After the hiring committee decided the candidate was not a match for the Staff level, the candidate returned for a shorter, two-round onsite loop evaluated at the Senior Software Engineer level, which also ended without an offer.

Interviewed July 2018 · Sunnyvale, CA

Google · L3 Software EngineerOffer

Google L3 software engineer interview: phone screen, four coding rounds, and the Googleyness round

A candidate with two years of experience went from recruiter outreach to offer over about four months. The onsite was four 45-minute coding rounds — three of them featuring binary trees — and one round turned into a 25-minute chain of follow-ups about approximating an optimal solution at scale.

Interviewed June 2020 · Bangalore, IN

Google · L4 Software EngineerNo offer

Google L4 Software Engineer Interview: Eight Rounds, No Offer

An L4 Software Engineer candidate went through two phone screens, three onsite rounds, a culture conversation, and a team-matching call with a Google hiring manager, then watched the process stall for about a month and a half over a tightened experience requirement before an added extended round ended without an offer.

Interviewed February 2024 · Not specified

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