Staff Software Engineer, Travel & Expense

The shape of it

In the posting’s own words

Travel & Expense is one of the highest-leverage domains at Brex, and it spans several engineering teams — expenses, travel, policy, and spend controls — that have to work as one system for customers. We're looking for a Staff Engineer who operates across all of them. You won't own a single team or service. Your mandate is to find the most important problems across T&E — the ones that fall between teams, the ones nobody is holding — and drive them to a solution.

What it asks for · 5

• 8+ years of software engineering experience, with a track record of technical leadership across multiple teams or a group.
• Demonstrated ability to identify and drive ambiguous, cross-cutting problems to resolution without a defined charter.
• Deep experience designing and operating large-scale backend systems in production.
• Strong collaboration skills; a track record of raising the bar for engineers around you and working effectively with both ICs and managers.
• Excellent written and verbal communication.

What the job covers

• Identify the highest-impact technical problems across Travel & Expense — including the cross-team gaps that individual teams can't see or own — and drive them to resolution.
• Set and raise the technical bar across the group through design reviews, architecture decisions, and hands-on work where it matters most.
• Partner as a peer with existing Staff Engineers and with EMs across expenses, travel, policy, and spend controls to align on direction and unblock execution.
• Act as a force multiplier: mentor senior engineers, improve how teams design and ship, and grow the next generation of technical leaders.
• Bring an AI-forward mindset to how the org builds, reviews, and operates.
• Contribute directly to the group's technical strategy and inform where leadership invests.

Tools and skills named

Words the posting leans on

• technical8×
• engineers6×
• engineering5×
• expense4×
• group4×
• leadership4×
• problems4×
• travel4×
• bar3×
• design3×
• drive3×
• leaders3×
• office3×
• operates3×
• reviews3×
• systems3×

Counted from the posting after the mission statement and the legal notices are set aside. The ones near the top are the ones a screener is looking for.

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