Engineering Manager, AI — Brex Assistant

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. Brex’s AI-native automation and world-class service eliminate manual expense and accounting tasks for customers so they can focus on what matters most. Tens of thousands of the world's best companies run on Brex, including DoorDash, Coinbase, Robinhood, Zoom, Plaid, Reddit, and SeatGeek. Working at Brex allows you to push your limits, challenge the status quo, and collaborate with some of the brightest minds in the industry. We’re committed to building a diverse team and inclusive culture and believe your potential should only be limited by how big you can dream. We make this a reality by empowering you with the tools, resources, and support you need to grow your career. AI at Brex AI Engineering at Brex is redefining how businesses run their finances by building intelligent, autonomous systems directly into the Brex platform. Our teams develop AI agents that don’t just surface insights—they take action, optimizing spend, managing workflows, and making real-time decisions on behalf of our customers. By deeply integrating proprietary financial data with product and platform infrastructure, we’re turning complex financial operations into simple, automated experiences and setting a new standard for how modern finance works. What you’ll do As an Engineering Manager for the Brex Assistant, you’ll lead a team building a consumer-facing conversational AI product that helps customers move faster and with more confidence in moments that matter: approving spend, understanding policy, resolving issues, and making financial decisions without friction. You’ll be accountable for both people leadership and product outcomes, guiding how agentic systems are designed, shipped, and operated in production. This is a deeply product-driven role. Success is measured by real customer impact — better expense documentation, stronger policy compliance, and less time spent navigating Brex — not by novelty or research output. Where you’ll work This role will be based in our San Francisco office. We currently require a minimum of three days per week in office - Monday, Wednesday and Thursday. As a perk, we also have up to four weeks per year of fully remote work! Responsibilities Lead and grow a team of engineers building the end-to-end conversational experience for the Brex Assistant, including outbound system-initiated interactions and inbound chat. Operate at all levels, guiding your team through complex technical challenges while being hands on with code and contributing to design. Own delivery and outcomes for the Assistant roadmap, making and executing hard sequencing decisions for agent capabilities (e.g., memory, preferences, merchant data). Set and uphold a high bar for reliability, correctness, and UX in non-deterministic, agentic systems operating in real-world financial workflows. Partner closely with Product, Design, and adjacent engineering teams (Spend, Expense, Platform) to shape direction and integrate deeply with core Brex workflows. Establish strong team norms and execution standards, balancing velocity with validation, quality control, and operational excellence. Requirements Proven experience leading engineering teams building user-facing products in complex, real-world domains. Strong product judgment, with a track record of making hard tradeoffs and delivering outcomes under real constraints. Experience building and operating systems that must remain reliable despite messy inputs, ambiguity, or non-deterministic behavior. Ability to translate high-level product goals into clear technical direction and execution plans, while mentoring engineers through strong technical