Staff Software Engineer, Travel & Expense

Why join us

Brex is the intelligent finance platform that enables companies to spend smarter and move faster in more than 200 markets. By combining global corporate cards and banking with intuitive spend management, bill pay, and travel software, Brex enables founders and finance teams to accelerate operations, gain real-time visibility, and control spend effortlessly. Tens of thousands of the world's best companies run on Brex, including DoorDash, Coinbase, Robinhood, Zoom, Plaid, Reddit, and SeatGeek.

What you’ll do

Travel & Expense 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 to find the most important problems across T&E and drive them to a solution.

This is a leadership role without direct reports. You'll set technical direction across the group, raise the bar in design and review, partner closely with Staff Engineers as peers, and have a seat at the T&E leadership table.

Responsibilities

• Identify the highest-impact technical problems across Travel & Expense — including cross-team gaps — and drive them to resolution.
• Set and raise the technical bar across the group through design reviews, architecture decisions, and hands-on work.
• Partner as a peer with existing Staff Engineers and EMs across expenses, travel, policy, and spend controls.
• Act as a force multiplier: mentor senior engineers, improve team design and shipping practices, and grow technical leaders.
• Bring an AI-forward mindset to how the org builds, reviews, and operates.
• Contribute directly to technical strategy and investment areas.

Requirements

• 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 with ICs and managers.
• Excellent written and verbal communication.