Staff Software Engineer, Travel & Expense — AI-Driven Scale

Brex; New York (NY); Hybrid; USD 240,000 - 285,000; Full time

Job summary

Brex in New York is seeking a Staff Engineer to advance Travel & Expense systems. You will work across teams to tackle cross‑cutting problems and drive architectural decisions with autonomy and impact.

You will mentor engineers, raise the technical bar, and bring an AI‑forward mindset to how the org builds, reviews, and operates. This hybrid role requires in‑office presence three days per week.

Qualifications

• 8+ years of software engineering experience with leadership across multiple teams.
• Ability to drive ambiguous, cross‑cutting problems to resolution without a charter.
• Deep experience designing and operating large‑scale backend systems in production.
• Strong collaboration and excellent written and verbal communication.

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 where it matters.
• Partner as a peer with existing Staff Engineers and Engineering Managers 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.

Skills

Backend architecture

Cross‑team leadership

Scalability

Communication

Job description

Brex in New York is seeking a Staff Engineer to advance Travel & Expense systems. You will work across teams to tackle cross‑cutting problems and drive architectural decisions with autonomy and impact.

You will mentor engineers, raise the technical bar, and bring an AI‑forward mindset to how the org builds, reviews, and operates. This hybrid role requires in‑office presence three days per week.